/*******************************************************************************
 * Copyright (c) 2003, 2018 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - Initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.server.core.internal;

import java.util.*;

import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.*;
import org.eclipse.core.runtime.jobs.*;
import org.eclipse.debug.core.*;
import org.eclipse.osgi.util.NLS;
import org.eclipse.wst.server.core.*;
import org.eclipse.wst.server.core.model.*;

/**
 * 
 */
public class Server extends Base implements IServer {
	/**
	 * Server id attribute (value "server-id") of launch configurations.
	 * This attribute is used to tag a launch configuration with the
	 * id of the corresponding server.
	 * 
	 * @see ILaunchConfiguration
	 */
	public static final String ATTR_SERVER_ID = "server-id";

	protected static final List<String> EMPTY_LIST = new ArrayList<String>(0);

	/**
	 * File extension (value "server") for serialized representation of
	 * server instances.
	 * <p>
	 * [issue: What is relationship between this file extension and
	 * the file passed to IServerType.create(...) or returned by
	 * IServer.getFile()? That is, are server files expected to end
	 * in ".server", or is this just a default? If the former
	 * (as I suspect), then IServerType.create needs to say so,
	 * and the implementation should enforce the restriction.]
	 * </p>
	 */
	public static final String FILE_EXTENSION = "server";

	public static final int AUTO_PUBLISH_DISABLE = 1;
	public static final int AUTO_PUBLISH_RESOURCE = 2;
	public static final int AUTO_PUBLISH_BUILD = 3;

	private static String PUBLISH_AUTO_STRING = "auto";
	private static String PUBLISH_CLEAN_STRING = "clean";
	private static String PUBLISH_FULL_STRING = "full";
	private static String PUBLISH_INCREMENTAL_STRING = "incremental";
	private static String PUBLISH_UNKOWN = "unkown";
	
	protected static final String PROP_HOSTNAME = "hostname";
	protected static final String SERVER_ID = "server-id";
	protected static final String RUNTIME_ID = "runtime-id";
	protected static final String CONFIGURATION_ID = "configuration-id";
	protected static final String MODULE_LIST = "modules";
	protected static final String PROP_DISABLED_PERFERRED_TASKS = "disabled-preferred-publish-tasks";
	protected static final String PROP_ENABLED_OPTIONAL_TASKS = "enabled-optional-publish-tasks";
	public static final String PROP_PUBLISHERS = "publishers";
	public static final String PROP_AUTO_PUBLISH_TIME = "auto-publish-time";
	public static final String PROP_AUTO_PUBLISH_SETTING = "auto-publish-setting";
	public static final String PROP_START_TIMEOUT = "start-timeout";
	public static final String PROP_STOP_TIMEOUT = "stop-timeout";	

	protected static final char[] INVALID_CHARS = new char[] {'\\', '/', ':', '*', '?', '"', '<', '>', '|', '\0', '@', '&'};

	protected IServerType serverType;
	protected ServerDelegate delegate;
	protected ServerBehaviourDelegate behaviourDelegate;

	protected IRuntime runtime;
	protected IFolder configuration;

	// the list of modules that are to be published to the server
	protected List<IModule> modules;
	
	/** A lock that is used to synchronize access to modules. */
	protected final Object modulesLock = new Object();

	// the list of external modules
	protected List<IModule> externalModules;

	// transient fields
	protected transient String mode = ILaunchManager.RUN_MODE;
	protected transient int serverState = STATE_UNKNOWN;
	protected transient int serverSyncState;
	protected transient boolean serverRestartNeeded;

	protected transient Map<String, Integer> moduleState = new HashMap<String, Integer>();
	protected transient Map<String, Integer> modulePublishState = new HashMap<String, Integer>();
	protected transient Map<String, Boolean> moduleRestartState = new HashMap<String, Boolean>();

	protected transient IStatus serverStatus;
	protected transient Map<String, IStatus> moduleStatus = new HashMap<String, IStatus>();

	protected transient ServerPublishInfo publishInfo;
	protected transient AutoPublishThread autoPublishThread;

	/**
	 * The most recent launch used to start the server.
	 */
	protected transient ILaunch launch;

/*	private static final String[] stateStrings = new String[] {
		"unknown", "starting", "started", "started_debug",
		"stopping", "stopped", "started_unsupported", "started_profile"
	};*/

	// publish listeners
	protected transient List<IPublishListener> publishListeners;

	// server listeners
	protected transient ServerNotificationManager notificationManager;

	public class AutoPublishThread extends Thread {
		public boolean stop;
		public int time = 0;

		public AutoPublishThread() {
			super("Automatic Publishing");
		}

		public void run() {
			if (Trace.FINEST) {
				Trace.trace(Trace.STRING_FINEST, "Auto-publish thread starting for " + Server.this + " - " + time + "s");
			}
			if (stop)
				return;
			
			try {
				sleep(time * 1000);
			} catch (Exception e) {
				// ignore
			}
			
			if (stop)
				return;
			
			if (Trace.FINEST) {
				Trace.trace(Trace.STRING_FINEST, "Auto-publish thread publishing " + Server.this);
			}
			
			if (getServerState() != IServer.STATE_STARTED)
				return;
			
			publish(IServer.PUBLISH_AUTO, null, null, null);
		}
	}

	private abstract class ServerJob extends Job {
		public ServerJob(String name) {
			super(name);
		}

		public boolean belongsTo(Object family) {
			return ServerUtil.SERVER_JOB_FAMILY.equals(family);
		}
	
		public IServer getServer() {
			return Server.this;
		}
	}

	public class ResourceChangeJob extends ServerJob {
		private IModule module;
		private IResourceChangeEvent event;

		public ResourceChangeJob(IModule module) {
			this(module, null);
		}
		
		public ResourceChangeJob(IModule module, IResourceChangeEvent event) {
			super(NLS.bind(Messages.jobUpdateServer, Server.this.getName()));
			this.module = module;
			this.event = event;
			
			if (module.getProject() == null)
				setRule(Server.this);
			else {
				ISchedulingRule[] rules = new ISchedulingRule[2];
				IResourceRuleFactory ruleFactory = ResourcesPlugin.getWorkspace().getRuleFactory();
				rules[0] = ruleFactory.createRule(module.getProject());
				rules[1] = Server.this;
				setRule(MultiRule.combine(rules));
			}
		}

		protected IModule getModule() {
			return module;
		}

		protected IStatus run(IProgressMonitor monitor) {
			final boolean[] changed = new boolean[1];
			final List<IModule[]> modules2 = new ArrayList<IModule[]>();
			
			// create the visitor that will reset the module publish state flag
			IModuleVisitor visitor = new IModuleVisitor() {
				public boolean visit(IModule[] module2) {
					modules2.add(module2);
					
					int size = module2.length;
					IModule m = module2[size - 1];
					if (m.getProject() == null)
						return true;
					
					if (getModule().equals(m)) {
						if (hasPublishedResourceDelta(module2)) {
							changed[0] = true;
							int oldState = getModulePublishState(module2);
							// if the old state is unknown, we have no basis to decide between full or incremental, so leave at unknown
							if( oldState != IServer.PUBLISH_STATE_UNKNOWN) {
								// do not downgrade a module that requires full publish to one that requires incremental
								int newState = oldState  == IServer.PUBLISH_STATE_FULL ? IServer.PUBLISH_STATE_FULL : IServer.PUBLISH_STATE_INCREMENTAL;
								setModulePublishState(module2, newState);
							}
						}
					}
					return true;
				}
			};
			
			// run the visitor
			visit(visitor, null);
			
			if (getServerPublishInfo().hasStructureChanged(modules2)) {
				int oldState = getServerPublishState();
				// if the old state is unknown, we have no basis to decide between full or incremental, so leave at unknown
				if( oldState != IServer.PUBLISH_STATE_UNKNOWN) {
					// do not downgrade a module that requires full publish to one that requires incremental
					int newState = oldState == IServer.PUBLISH_STATE_FULL ? IServer.PUBLISH_STATE_FULL : IServer.PUBLISH_STATE_INCREMENTAL;
					setServerPublishState(newState);
					changed[0] = true;
				}
			}
			
			if (!changed[0])
				return Status.OK_STATUS;
			
			if (getServerState() != IServer.STATE_STOPPED && behaviourDelegate != null)
				behaviourDelegate.handleResourceChange();
			
			if (getServerState() == IServer.STATE_STARTED)
				autoPublish(event);
			
			return Status.OK_STATUS;
		}
	}

	public final class PublishJob extends ServerJob {
		private final int kind;
		private final List<IModule[]> modules4;
		private final IAdaptable info;
		private final boolean start;

		/**
		 * Create a new publishing job.
		 * 
		 * @param kind the kind of publish
		 * @param modules4 a list of modules to publish, or <code>null</code> to
		 *    publish all modules
		 * @param start true if we need to start the server first
		 * @param info the IAdaptable (or <code>null</code>) provided by the
		 *    caller in order to supply UI information for prompting the
		 *    user if necessary. When this parameter is not
		 *    <code>null</code>, it should minimally contain an adapter
		 *    for the Shell class.
		 */
		public PublishJob(int kind, List<IModule[]> modules4, boolean start, IAdaptable info) {
			super(NLS.bind(Messages.publishing, Server.this.getName()));
			this.kind = kind;
			this.modules4 = modules4;
			this.start = start;
			this.info = info;
		}
		
		/**
		 * Returns the list of projects that requires to be locked during a publish.
		 * @return the list of projects
		 */
		@SuppressWarnings("synthetic-access")
		List<IProject> getProjectPublishLockList(IProgressMonitor monitor) {
			final List<IProject> projectPublishLockList = new ArrayList<IProject>();
			
			IModule[] curModules = getModules();
			// Check empty module list since the visitModule does not handle that properly.
			if (curModules != null && curModules.length > 0) {
				for (IModule curModule: curModules) {
					// Get all the affected projects during the publish.
					visitModule(new IModule[] { curModule }, new IModuleVisitor(){
						public boolean visit(IModule[] modules2) {
							for (IModule curModule2 : modules2) {
								IProject curProject = curModule2.getProject();
								if (curProject != null) {
									if (!projectPublishLockList.contains(curProject)) {
										projectPublishLockList.add(curProject);
									}
								}
							}
							return true;
					}}, monitor);
				}
			}
			return projectPublishLockList;
		}

		protected IStatus run(IProgressMonitor monitor) {
			if (start) {
				try{
					// 237222 - Apply the rules only when the job has started
					Job.getJobManager().beginRule(Server.this, monitor);
					IStatus status = startImpl(ILaunchManager.RUN_MODE, monitor);
					if (status != null && status.getSeverity() == IStatus.ERROR)
						return status;
				}
				finally{
					Job.getJobManager().endRule(Server.this);
				}
			}

			ServerDelegate curDelegate = getDelegate(monitor);
			ISchedulingRule[] publishScheduleRules = null;
			if (curDelegate != null && curDelegate.isUseProjectSpecificSchedulingRuleOnPublish()) {
				// 288863 - lock only affected projects during publish
				// Find out all the projects that contains modules added to this server for workspace lock.
				List<IProject> curProjectPublishLockList = getProjectPublishLockList(monitor);
				
				publishScheduleRules = new ISchedulingRule[curProjectPublishLockList.size()+1];
				IResourceRuleFactory ruleFactory = ResourcesPlugin.getWorkspace().getRuleFactory();
				publishScheduleRules[0] = Server.this;
				int i=1;
				for (IProject curProj : curProjectPublishLockList) {
					publishScheduleRules[i++] = ruleFactory.modifyRule(curProj);
				}
			} else {
				// 102227 - lock entire workspace during publish
				publishScheduleRules = new ISchedulingRule[] {
						ResourcesPlugin.getWorkspace().getRoot(), Server.this
				};
			}
			ISchedulingRule publishRule = MultiRule.combine(publishScheduleRules);
			
			try{
				// 237222 - Apply the rules only when the job has started
				Job.getJobManager().beginRule(publishRule, monitor);	
				return publishImpl(kind, modules4, info, monitor);
			} finally {
				Job.getJobManager().endRule(publishRule);
			}
		}
	}

	public class StartJob extends ServerJob {
		protected static final byte PUBLISH_NONE = 0;
		protected static final byte PUBLISH_BEFORE = 1;
		protected static final byte PUBLISH_AFTER = 2;

		protected String launchMode;

		public StartJob(String launchMode) {
			super(NLS.bind(Messages.jobStarting, Server.this.getName()));
			this.launchMode = launchMode;
			
			setRule(Server.this);
		}

		protected IStatus run(IProgressMonitor monitor) {
			IStatus stat = startImpl(launchMode, monitor);
			return stat;
		}
	}

	public class RestartJob extends ServerJob {
		protected String launchMode;

		public RestartJob(String launchMode) {
			super(NLS.bind(Messages.jobRestarting, Server.this.getName()));
			this.launchMode = launchMode;
		}

		protected IStatus run(IProgressMonitor monitor) {
			try{
				// Do begin rule in here instead of setRule on constructor to prevent deadlock
				// on the default restart operation during the join() in the StartJob.
				Job.getJobManager().beginRule(Server.this, monitor);
				return restartImpl(launchMode, monitor);
			}
			finally{
				Job.getJobManager().endRule(Server.this);
			}
		}
	}

	public class StopJob extends ServerJob {
		protected boolean force;

		public StopJob(boolean force) {
			super(NLS.bind(Messages.jobStopping, Server.this.getName()));
			setRule(Server.this);
			this.force = force;
		}

		protected IStatus run(IProgressMonitor monitor) {
			return stopImpl(force, monitor);
		}
	}

	private static final Comparator<PublishOperation> PUBLISH_OPERATION_COMPARTOR = new Comparator<PublishOperation>() {
      public int compare(PublishOperation leftOp, PublishOperation rightOp) {
          PublishOperation left = leftOp;
          PublishOperation right = rightOp;
          if (left.getOrder() > right.getOrder())
              return 1;
          if (left.getOrder() < right.getOrder())
              return -1;
          return 0;
      }
	};

	// working copy, loaded resource
	public Server(IFile file) {
		super(file);
		map.put(PROP_HOSTNAME, "localhost");
	}

	// creation (working copy)
	public Server(String id, IFile file, IRuntime runtime, IServerType serverType) {
		super(file, id);
		this.runtime = runtime;
		this.serverType = serverType;
		map.put("server-type-id", serverType.getId());
		map.put(PROP_HOSTNAME, "localhost");
		if (serverType instanceof ServerType){
			map.put(PROP_START_TIMEOUT, ((ServerType)serverType).getStartTimeout()/1000 + "");
			map.put(PROP_STOP_TIMEOUT, ((ServerType)serverType).getStopTimeout()/1000 + "");
			serverState = ((ServerType)serverType).getInitialState();
		}
		if (runtime != null && runtime.getRuntimeType() != null) {
			String name = runtime.getRuntimeType().getName();
			map.put(PROP_NAME, name);
		}

	}
	
	public IServerType getServerType() {
		return serverType;
	}
	
	public IServerWorkingCopy createWorkingCopy() {
		return new ServerWorkingCopy(this); 
	}

	public boolean isWorkingCopy() {
		return false;
	}

	protected void deleteFromFile() throws CoreException {
		super.deleteFromFile();
		ResourceManager.getInstance().removeServer(this);
	}

	protected void deleteFromMetadata() {
		ResourceManager.getInstance().removeServer(this);
	}

	protected void doSave(IProgressMonitor monitor) throws CoreException {
		super.doSave(monitor);
		fireServerChangeEvent();
	}

	protected void saveToFile(IProgressMonitor monitor) throws CoreException {
		super.saveToFile(monitor);
		ResourceManager.getInstance().addServer(this);
	}

	protected void saveToMetadata(IProgressMonitor monitor) {
		super.saveToMetadata(monitor);
		ResourceManager.getInstance().addServer(this);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServerAttributes#getRuntime()
	 */
	public IRuntime getRuntime() {
		return runtime;
	}

	protected String getRuntimeId() {
		return getAttribute(RUNTIME_ID, (String) null);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServerAttributes#getServerConfiguration()
	 */
	public IFolder getServerConfiguration() {
		return configuration;
	}

	protected ServerDelegate getDelegate(IProgressMonitor monitor) {
		if (delegate != null || serverType == null)
			return delegate;
		
		synchronized (this) {
			if (delegate == null) {
				try {
					long time = System.currentTimeMillis();
					delegate = ((ServerType) serverType).createServerDelegate();
					if (delegate != null)
						InternalInitializer.initializeServerDelegate(delegate, Server.this, monitor);
					if (Trace.PERFORMANCE) {
						Trace.trace(Trace.STRING_PERFORMANCE, "Server.getDelegate(): <"
								+ (System.currentTimeMillis() - time) + "> " + getServerType().getId());
					}
				} catch (Throwable t) {
					ServerPlugin.logExtensionFailure(toString(), t);
				}
			}
		}
		return delegate;
	}

	protected ServerBehaviourDelegate getBehaviourDelegate(IProgressMonitor monitor) {
		if (behaviourDelegate != null || serverType == null)
			return behaviourDelegate;
		
		synchronized (moduleState) {
			if (behaviourDelegate == null) {
				try {
					long time = System.currentTimeMillis();
					behaviourDelegate = ((ServerType) serverType).createServerBehaviourDelegate();
					if (behaviourDelegate != null)
						InternalInitializer.initializeServerBehaviourDelegate(behaviourDelegate, Server.this, monitor);
					if (Trace.PERFORMANCE) {
						Trace.trace(Trace.STRING_PERFORMANCE,
								"Server.getBehaviourDelegate(): <" + (System.currentTimeMillis() - time) + "> "
										+ getServerType().getId());
					}

					// publish only if the server is started but respect Server > Launching > PREF_AUTO_PUBLISH
					if (getServerState() == IServer.STATE_STARTED && ServerCore.isAutoPublishing())
						autoPublish();
				} catch (Throwable t) {
					ServerPlugin.logExtensionFailure(toString(), t);
				}
			}
		}
		return behaviourDelegate;
	}

	public void dispose() {
		if (delegate != null) {
			delegate.dispose();
			delegate = null;
		}
		if (behaviourDelegate != null) {
			behaviourDelegate.dispose();
			behaviourDelegate = null;
		}
	}

	public String getHost() {
		return getAttribute(PROP_HOSTNAME, "localhost");
	}

	public int getAutoPublishTime() {
		return getAttribute(PROP_AUTO_PUBLISH_TIME, 15);
	}

	public int getAutoPublishSetting() {
		return getAttribute(PROP_AUTO_PUBLISH_SETTING, AUTO_PUBLISH_RESOURCE);
	}

	public int getStartTimeout() {
		return getAttribute(PROP_START_TIMEOUT, ((ServerType)getServerType()).getStartTimeout()/1000);
	}

	public int getStopTimeout() {
		return getAttribute(PROP_STOP_TIMEOUT, ((ServerType)getServerType()).getStopTimeout()/1000);
	}

	/**
    * Returns a list of id (String) of preferred publish operations that will not be run
    * during publish.
    * 
    * @return a list of publish operation ids
    */
	public List<String> getDisabledPreferredPublishOperationIds() {
		return getAttribute(PROP_DISABLED_PERFERRED_TASKS, EMPTY_LIST);		
	}

	/**
    * Returns a list of id (String) of optional publish operations that are enabled to 
    * be run during publish.
    * 
    * @return a list of publish operation ids
    */
	public List<String> getEnabledOptionalPublishOperationIds() {
		return getAttribute(PROP_ENABLED_OPTIONAL_TASKS, EMPTY_LIST);
	}

	/**
    * Returns a list of id (String) of publishers and state (true or false).
    * 
    * @return a list of publishers
    */
	public List<String> getPublisherIds() {
		return getAttribute(PROP_PUBLISHERS, EMPTY_LIST);		
	}

	public boolean isPublisherEnabled(Publisher pub) {
		if (pub == null)
			return false;
		
		// check for existing enablement
		List<String> list = getAttribute(PROP_PUBLISHERS, EMPTY_LIST);
		Iterator<String> iter = list.iterator();
		while (iter.hasNext()) {
			String id = iter.next();
			int ind = id.indexOf(":");
			boolean enabled = false;
			if ("true".equals(id.substring(ind+1)))
				enabled = true;
			id = id.substring(0, ind);
			if (pub.getId().equals(id))
				return enabled;
		}
		
		// otherwise use the default enablement
		return true;
	}

	/**
	 * Returns the current state of the server. (see SERVER_XXX constants)
	 *
	 * @return int
	 */
	public int getServerState() {
		return serverState;
	}

	public String getMode() {
		return mode;
	}

	public void setServerState(int state) {
		if (state == serverState)
			return;
		
		// ensure that any server monitors are started
		if (state == IServer.STATE_STARTED)
			ServerMonitorManager.getInstance();
		
		this.serverState = state;
		fireServerStateChangeEvent();
	}

	/**
	 * Add a listener to this server.
	 *
	 * @param listener org.eclipse.wst.server.model.IServerListener
	 */
	public void addServerListener(IServerListener listener) {
		if (listener == null)
			throw new IllegalArgumentException("Module cannot be null");
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "Adding server listener " + listener + " to " + this);
		}
		getServerNotificationManager().addListener(listener);
	}

	/**
	 * Add a listener to this server with the given event mask.
	 *
	 * @param listener org.eclipse.wst.server.model.IServerListener
	 * @param eventMask to limit listening to certain types of events
	 */
	public void addServerListener(IServerListener listener, int eventMask) {
		if (listener == null)
			throw new IllegalArgumentException("Module cannot be null");
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "Adding server listener " + listener + " to " + this
					+ " with eventMask " + eventMask);
		}
		getServerNotificationManager().addListener(listener, eventMask);
	}

	/**
	 * Remove a listener from this server.
	 *
	 * @param listener org.eclipse.wst.server.model.IServerListener
	 */
	public void removeServerListener(IServerListener listener) {
		if (listener == null)
			throw new IllegalArgumentException("Module cannot be null");
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "Removing server listener " + listener + " from " + this);
		}
		getServerNotificationManager().removeListener(listener);
	}

	/**
	 * Fire a server listener restart state change event.
	 */
	protected void fireRestartStateChangeEvent() {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing server restart change event: " + getName() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.SERVER_CHANGE | ServerEvent.RESTART_STATE_CHANGE, this, getServerState(), 
				getServerPublishState(), getServerRestartState()));
	}
	
	/**
	 * Fire a server listener server status change event
	 */
	protected void fireServerStatusChangeEvent() {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing server status change event: " + getName() + ", "
					+ getServerStatus() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.SERVER_CHANGE | ServerEvent.STATUS_CHANGE, this, getServerState(), 
				getServerPublishState(), getServerRestartState(), getServerStatus()));
	}

	/**
	 * Fire a server listener state change event.
	 */
	protected void fireServerStateChangeEvent() {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing server state change event: " + getName() + ", "
					+ getServerState() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.SERVER_CHANGE | ServerEvent.STATE_CHANGE, this, getServerState(), 
				getServerPublishState(), getServerRestartState()));
	}

	/**
	 * Fire a server listener change event.
	 */
	protected void fireServerChangeEvent() {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing server change event: " + getName() + ", "
					+ getServerState() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.SERVER_CHANGE, this, getServerState(), 
				getServerPublishState(), getServerRestartState()));
	}

	/**
	 * Fire a server listener module state change event.
	 */
	protected void fireModuleStateChangeEvent(IModule[] module) {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing module state change event: " + getName() + ", "
					+ getServerState() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.MODULE_CHANGE | ServerEvent.STATE_CHANGE, this, module, getModuleState(module), 
				getModulePublishState(module), getModuleRestartState(module)));
	}
	

	/**
	 * Fire a server listener module status change event.
	 */
	protected void fireModuleStatusChangeEvent(IModule[] module) {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing module status change event: " + getName() + ", "
					+ getModuleStatus(module) + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.MODULE_CHANGE | ServerEvent.STATUS_CHANGE, this, module, getModuleState(module), 
				getModulePublishState(module), getModuleRestartState(module), getModuleStatus(module)));
	}

	/**
	 * Fire a server listener module publish state change event.
	 */
	protected void fireModulePublishStateChangeEvent(IModule[] module) {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing module publish state change event: " + getName() + ", "
					+ getServerState() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.MODULE_CHANGE | ServerEvent.PUBLISH_STATE_CHANGE, this, module, getModuleState(module), 
				getModulePublishState(module), getModuleRestartState(module)));
	}

	/**
	 * Fire a server listener module state change event.
	 */
	protected void fireModuleRestartChangeEvent(IModule[] module) {
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "->- Firing module restart change event: " + getName() + ", "
					+ getServerState() + " ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.MODULE_CHANGE | ServerEvent.RESTART_STATE_CHANGE, this, module, getModuleState(module), 
				getModulePublishState(module), getModuleRestartState(module)));
	}

	public void setMode(String m) {
		if (m == mode)
			return;

		this.mode = m;
		fireServerStateChangeEvent();
	}

	public void setModuleState(IModule[] module, int state) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		int oldState = getModuleState(module);
		if (oldState == state)
			return;
		
		Integer in = new Integer(state);
		moduleState.put(getKey(module), in);
		fireModuleStateChangeEvent(module);
	}

	public void setModulePublishState(IModule[] module, int state) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		int oldState = getModulePublishState(module);
		if (oldState == state)
			return;
		
		Integer in = new Integer(state);
		if (state == -1)
			modulePublishState.remove(getKey(module));
		modulePublishState.put(getKey(module), in);
		fireModulePublishStateChangeEvent(module);
	}

	public void setModuleRestartState(IModule[] module, boolean r) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		boolean oldState = getModuleRestartState(module);
		if (oldState == r)
			return;
		
		Boolean b = new Boolean(r);
		moduleRestartState.put(getKey(module), b);
		fireModuleRestartChangeEvent(module);
	}

	public void setExternalModules(IModule[] modules) {
		externalModules = new ArrayList<IModule>();
		if (modules != null) {
			int size = modules.length;
			for (int i = 0; i < size; i++)
				externalModules.add(modules[i]);
		}
	}

	public List<IModule> getExternalModules() {
		return externalModules;
 	}

	protected void handleModuleProjectChange(IModule module) {
		handleModuleProjectChange(module, null);
	}

	protected void handleModuleProjectChange(IModule module, IResourceChangeEvent buildEvent) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "> handleDeployableProjectChange() " + this + " " + module);
		}
		
		if (!isModuleDeployed(module)){
			return;
		}
		
		// check for duplicate jobs already waiting and don't create a new one
		Job[] jobs = Job.getJobManager().find(ServerUtil.SERVER_JOB_FAMILY);
		if (jobs != null) {
			int size = jobs.length;
			for (int i = 0; i < size; i++) {
				if (jobs[i] instanceof ResourceChangeJob) {
					ResourceChangeJob rcj = (ResourceChangeJob) jobs[i];
					if (rcj.getServer().equals(this) && rcj.getModule().equals(module) && rcj.getState() == Job.WAITING)
						return;
				}
			}
		}
		
		ResourceChangeJob job = new ResourceChangeJob(module, buildEvent);
		job.setSystem(true);
		job.setPriority(Job.BUILD);
		job.schedule();
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "< handleDeployableProjectChange()");
		}
	}
	
	protected boolean isModuleDeployed(final IModule requestedModule){
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "> isModuleDeployed()");
		}

		// no modules are deployed
		if (getModules().length < 0)
			return false;
		
		boolean deployed = false;
		
		synchronized (modulesLock){
			// shallow search: check for root modules first
			if (modules != null){
				deployed = modules.contains(requestedModule);
			
				if(!deployed){
					// deep search: look into all the child modules
					Iterator<IModule> itr = modules.iterator();
					while(itr.hasNext() && !deployed){
						IModule[] m = new IModule[] {itr.next()};
						deployed = !visitModule(m, new IModuleVisitor(){
							public boolean visit(IModule[] modules2) {
								for (int i =0;i<=modules2.length-1;i++){
									if (modules2[i].equals(requestedModule))
										return false;
								}
								return true;
						}}, null);
					}
				}
			}
		}
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "< isModuleDeployed() deployed=" + deployed);
		}
		return deployed;
	}

	protected void stopAutoPublish() {
		if (autoPublishThread == null)
			return;
		
		autoPublishThread.stop = true;
		autoPublishThread.interrupt();
		autoPublishThread = null;
	}

	/**
	 * Reset automatic publish thread if it is running and start a new
	 * thread if automatic publishing is currently enabled.
	 */
	protected void autoPublish() {
		autoPublish(null);
	}
	
	protected void autoPublish(IResourceChangeEvent event) {
		stopAutoPublish();
		boolean buildOccurred = event != null && didBuildOccur(event);
		boolean projectClosedOrDeleted = event != null && isProjectCloseOrDeleteEvent(event);
		
		if (getAutoPublishSetting() == AUTO_PUBLISH_DISABLE)
			return;
		
		if( (getAutoPublishSetting() == AUTO_PUBLISH_BUILD) && 
				!buildOccurred && !projectClosedOrDeleted)
			return;
		
		int time = getAutoPublishTime();
		if (time >= 0) {
			autoPublishThread = new AutoPublishThread();
			autoPublishThread.time = time;
			autoPublishThread.setPriority(Thread.MIN_PRIORITY + 1);
			autoPublishThread.setDaemon(true);
			autoPublishThread.start();
		}
	}
	
	private boolean isProjectCloseOrDeleteEvent(IResourceChangeEvent event) {
		int kind = event.getType();
		if( (kind & IResourceChangeEvent.PRE_CLOSE) > 0 || 
				(kind & IResourceChangeEvent.PRE_DELETE) > 0)
			return true;
		return false;
	}
	
	private boolean didBuildOccur(IResourceChangeEvent event) {
		int kind = event.getBuildKind();
		final boolean eventOccurred = 
			   (kind == IncrementalProjectBuilder.INCREMENTAL_BUILD) || 
			   (kind == IncrementalProjectBuilder.FULL_BUILD) || 
			   ((kind == IncrementalProjectBuilder.AUTO_BUILD && 
					ResourcesPlugin.getWorkspace().isAutoBuilding()));
		return eventOccurred;
	}

	/**
	 * Returns the event notification manager.
	 * 
	 * @return the notification manager
	 */
	private synchronized ServerNotificationManager getServerNotificationManager() {
		if (notificationManager == null)
			notificationManager = new ServerNotificationManager();
		
		return notificationManager;
	}

	/**
	 * Returns the server's publish sync state.
	 *
	 * @return int
	 */
	public int getServerPublishState() {
		return serverSyncState;
	}

	/**
	 * Sets the server's publish sync state.
	 *
	 * @param state int
	 */
	public void setServerPublishState(int state) {
		if (state == serverSyncState)
			return;
		serverSyncState = state;
		firePublishStateChange();
	}

	/**
	 * Adds a publish listener to this server.
	 * Has no effect if an identical listener is already registered.
	 *
	 * @param listener the publish listener
	 * @see #removePublishListener(IPublishListener)
	 */
	public void addPublishListener(IPublishListener listener) {
		if (listener == null)
			throw new IllegalArgumentException("Listener cannot be null");
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "Adding publish listener " + listener + " to " + this);
		}
		
		if (publishListeners == null)
			publishListeners = new ArrayList<IPublishListener>();
		publishListeners.add(listener);
	}

	/**
	 * Removes a publish listener from this server.
	 * Has no effect if the listener is not registered.
	 *
	 * @param listener the publish listener
	 * @see #addPublishListener(IPublishListener)
	 */
	public void removePublishListener(IPublishListener listener) {
		if (listener == null)
			throw new IllegalArgumentException("Listener cannot be null");
		if (Trace.LISTENERS) {
			Trace.trace(Trace.STRING_LISTENERS, "Removing publish listener " + listener + " from " + this);
		}

		if (publishListeners != null)
			publishListeners.remove(listener);
	}
	
	/**
	 * Fire a publish start event.
	 */
	protected void firePublishStarted() {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "->- Firing publish started event ->-");
		}
	
		if (publishListeners == null || publishListeners.isEmpty())
			return;

		int size = publishListeners.size();
		IPublishListener[] srl = new IPublishListener[size];
		publishListeners.toArray(srl);

		for (int i = 0; i < size; i++) {
			if (Trace.FINEST) {
				Trace.trace(Trace.STRING_FINEST, "  Firing publish started event to " + srl[i]);
			}
			try {
				srl[i].publishStarted(this);
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "  Error firing publish started event to " + srl[i], e);
				}
			}
		}

		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "-<- Done firing publish started event -<-");
		}
	}

	/**
	 * Fire a publish stop event.
	 *
	 * @param status publishing status
	 */
	protected void firePublishFinished(IStatus status) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "->- Firing publishing finished event: " + status + " ->-");
		}
	
		if (publishListeners == null || publishListeners.isEmpty())
			return;

		int size = publishListeners.size();
		IPublishListener[] srl = new IPublishListener[size];
		publishListeners.toArray(srl);

		for (int i = 0; i < size; i++) {
			if (Trace.FINEST) {
				Trace.trace(Trace.STRING_FINEST, "  Firing publishing finished event to " + srl[i]);
			}
			try {
				srl[i].publishFinished(this, status);
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "  Error firing publishing finished event to " + srl[i], e);
				}
			}
		}

		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "-<- Done firing publishing finished event -<-");
		}
	}

	/**
	 * Fire a publish state change event.
	 */
	protected void firePublishStateChange() {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "->- Firing publish state change event ->-");
		}
		
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
		
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.SERVER_CHANGE | ServerEvent.PUBLISH_STATE_CHANGE, this, getServerState(), 
					getServerPublishState(), getServerRestartState()));
	}

	/**
	 * Fire a publish state change event.
	 */
	protected void firePublishStateChange(IModule[] module) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "->- Firing publish state change event: " + module + " ->-");
		}
	
		if (notificationManager == null || notificationManager.hasNoListeners())
			return;
	
		notificationManager.broadcastChange(
			new ServerEvent(ServerEvent.MODULE_CHANGE | ServerEvent.PUBLISH_STATE_CHANGE, this, module, getModuleState(module), 
				getModulePublishState(module), getModuleRestartState(module)));
	}

	/**
	 * Returns true if the server is in a state that it can
	 * be published to.
	 *
	 * @return boolean
	 */
	public IStatus canPublish() {
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		// can't publish if the server is starting or stopping
		int state = getServerState();
		if (state == STATE_STARTING || state == STATE_STOPPING)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorPublishStarting, null);
		
		// can't publish if there is no configuration
		if (getServerType().hasServerConfiguration() && configuration == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorPublishNoConfiguration, null);
		
		if (getBehaviourDelegate(new NullProgressMonitor()) != null)
			return getBehaviourDelegate(new NullProgressMonitor()).canPublish();
		
		return Status.OK_STATUS;
	}

	/**
	 * Returns true if the server should be published to. This is <code>true</code> when the server
	 * can be published to and the server's publish state or any module's publish state is not
	 * PUBLISH_STATE_NONE. 
	 * 
	 * @return boolean
	 */
	public boolean shouldPublish() {
		if (!canPublish().isOK())
			return false;
		
		if (getServerPublishState() != PUBLISH_STATE_NONE)
			return true;
		
		final boolean[] publish = new boolean[1];
		
		visit(new IModuleVisitor() {
			public boolean visit(IModule[] module) {
				if (getModulePublishState(module) != PUBLISH_STATE_NONE) {
					publish[0] = true;
					return false;
				}
				return true;
			}
		}, null);
		
		return publish[0];
	}

	public boolean isPublishUnknown() {
		if (getServerPublishState() != PUBLISH_STATE_UNKNOWN)
			return false;
		
		final boolean[] isPublishUnknown = new boolean[1];
		isPublishUnknown[0] = true;
		
		visit(new IModuleVisitor() {
			public boolean visit(IModule[] module) {
				int curState = getModulePublishState(module);
				if (curState != PUBLISH_STATE_UNKNOWN && curState != PUBLISH_STATE_NONE) {
					isPublishUnknown[0] = false;
					return false;
				}
				return true;
			}
		}, null);
		
		return isPublishUnknown[0];
	}

	/**
	 * Returns true if the server should be restarted. This is <code>true</code> when the server
	 * can be restarted and the server's restart state or any module's restart states is not
	 * false. 
	 * 
	 * @return boolean
	 */
	public boolean shouldRestart() {
		if (!canPublish().isOK())
			return false;
		
		if (getServerRestartState())
			return true;
		
		final boolean[] publish = new boolean[1];
		
		visit(new IModuleVisitor() {
			public boolean visit(IModule[] module) {
				if (getModuleRestartState(module)) {
					publish[0] = true;
					return false;
				}
				return true;
			}
		}, null);
		
		return publish[0];
	}

	public ServerPublishInfo getServerPublishInfo() {
		if (publishInfo == null) {
			publishInfo = PublishInfo.getInstance().getServerPublishInfo(this);
		}
		return publishInfo;
	}

	/*
	 * Publish to the server using the progress monitor. The result of the
	 * publish operation is returned as an IStatus.
	 */
	public IStatus publish(int kind, IProgressMonitor monitor) {
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		// check what is out of sync and publish
		if (getServerType().hasServerConfiguration() && configuration == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorNoConfiguration, null);
		
		// make sure that the delegate is loaded and the server state is correct
		loadAdapter(ServerBehaviourDelegate.class, monitor);
		
		if (((ServerType)getServerType()).startBeforePublish() && (getServerState() == IServer.STATE_STOPPED)) {
			IStatus status = startImpl(ILaunchManager.RUN_MODE, monitor);
			if (status != null && status.getSeverity() == IStatus.ERROR)
				return status;
		}
		
		return publishImpl(kind, null, null, monitor);
	}

	/*
	 * Publish the given modules to the server.
	 * TODO: Implementation of publishing individual modules!
	 */
	public void publish(final int kind, final List<IModule[]> modules2, final IAdaptable info, final IOperationListener opListener) {
		if (getServerType() == null) {
			if (opListener != null)
				opListener.done(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null));
			return;
		}
		
		// check what is out of sync and publish
		if (getServerType().hasServerConfiguration() && configuration == null) {
			if (opListener != null)
				opListener.done(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorNoConfiguration, null));
			return;
		}
		
		// make sure that the delegate is loaded and the server state is correct
		loadAdapter(ServerBehaviourDelegate.class, null);
		
		boolean start = false;
		if (((ServerType)getServerType()).startBeforePublish() && (getServerState() == IServer.STATE_STOPPED))
			start = true;
		
		PublishJob publishJob = new PublishJob(kind, modules2, start, info);
		if (opListener != null) {
			publishJob.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		
		// to make the publishing dialog appear, require adaptable to covert String.class
		// into "user" string. a bit of a kludge, but works fine for now
		if (info != null && "user".equals(info.getAdapter(String.class)))
			publishJob.setUser(true);
		publishJob.schedule();
	}

	/**
	 * Returns the publish tasks that have been targeted to this server.
	 * These tasks should be run during publishing and will be initialized
	 * with a task model.
	 * 
	 * @param kind one of the IServer.PUBLISH_XX constants
	 * @param moduleList a list of modules
	 * @param kindList one of the IServer publish change constants
	 * @return a possibly empty array of IOptionalTasks
	 */
	public PublishOperation[] getTasks(int kind, List moduleList, List kindList) {
		List<PublishOperation> tasks = new ArrayList<PublishOperation>();
		
		String serverTypeId = getServerType().getId();
		
		IPublishTask[] publishTasks = ServerPlugin.getPublishTasks();
		if (publishTasks != null) {
			List enabledTasks = getEnabledOptionalPublishOperationIds();
			List disabledTasks = getDisabledPreferredPublishOperationIds();
			
			TaskModel taskModel = new TaskModel();
			taskModel.putObject(TaskModel.TASK_SERVER, this);
			
			int size = publishTasks.length;
			for (int i = 0; i < size; i++) {
				IPublishTask task = publishTasks[i];
				if (task.supportsType(serverTypeId)) {
					PublishOperation[] tasks2 = task.getTasks(this, kind, moduleList, kindList);
					if (tasks2 != null) {
						int size2 = tasks2.length;
						for (int j = 0; j < size2; j++) {
							if (tasks2[j].getKind() == PublishOperation.REQUIRED) {
								tasks.add(tasks2[j]);
								tasks2[j].setTaskModel(taskModel);
							} else if (tasks2[j].getKind() == PublishOperation.PREFERRED) {
								String opId = getPublishOperationId(tasks2[j]);
								if (!disabledTasks.contains(opId)) {
									tasks.add(tasks2[j]);
									tasks2[j].setTaskModel(taskModel);
								}
							} else if (tasks2[j].getKind() == PublishOperation.OPTIONAL) {
								String opId = getPublishOperationId(tasks2[j]);
								if (enabledTasks.contains(opId)) {
									tasks.add(tasks2[j]);
									tasks2[j].setTaskModel(taskModel);
								}
							}
						}
					}
				}
			}
		}
		
		Collections.sort(tasks, PUBLISH_OPERATION_COMPARTOR);
		
		return tasks.toArray(new PublishOperation[tasks.size()]);
	}

	/**
	 * Returns all the publishers that are available with this server,
	 * whether or not they are currently enabled.
	 * 
	 * @return a possibly empty array of Publishers
	 */
	public Publisher[] getAllPublishers() {
		List<Publisher> pubs = new ArrayList<Publisher>();
		
		String serverTypeId = getServerType().getId();
		
		TaskModel taskModel = new TaskModel();
		taskModel.putObject(TaskModel.TASK_SERVER, this);
		
		Publisher[] publishers = ServerPlugin.getPublishers();
		if (publishers != null) {
			int size = publishers.length;
			for (int i = 0; i < size; i++) {
				Publisher pub = publishers[i];
				if (pub.supportsType(serverTypeId)) {
					pub.setTaskModel(taskModel);
					pubs.add(pub);
				}
			}
		}
		
		return pubs.toArray(new Publisher[pubs.size()]);
	}

	/**
	 * Returns the publishers that have been targeted to this server and
	 * are enabled.
	 * 
	 * @return a possibly empty array of Publishers
	 */
	public Publisher[] getEnabledPublishers() {
		List<Publisher> pubs = new ArrayList<Publisher>();
		
		String serverTypeId = getServerType().getId();
		
		TaskModel taskModel = new TaskModel();
		taskModel.putObject(TaskModel.TASK_SERVER, this);
		
		Publisher[] publishers = ServerPlugin.getPublishers();
		if (publishers != null) {
			int size = publishers.length;
			for (int i = 0; i < size; i++) {
				Publisher pub = publishers[i];
				if (pub.supportsType(serverTypeId) && isPublisherEnabled(pub)) {
					pub.setTaskModel(taskModel);
					pubs.add(pub);
				}
			}
		}
		
		return pubs.toArray(new Publisher[pubs.size()]);
	}

	/**
	 * Returns all publish tasks that have been targeted to this server type.
	 * The tasks will not be initialized with a task model. 
	 * 
	 * @param moduleList a list of modules
	 * @return an array of publish operations
	 */
	public PublishOperation[] getAllTasks(List moduleList) {
		String serverTypeId = getServerType().getId();
		if (serverTypeId == null)
			return new PublishOperation[0];
		
		List<PublishOperation> tasks = new ArrayList<PublishOperation>();
		
		IPublishTask[] publishTasks = ServerPlugin.getPublishTasks();
		if (publishTasks != null) {
			int size = publishTasks.length;
			for (int i = 0; i < size; i++) {
				IPublishTask task = publishTasks[i];
				if (task.supportsType(serverTypeId)) {
					PublishOperation[] tasks2 = task.getTasks(this, moduleList);
					tasks.addAll(Arrays.asList(tasks2));
				}
			}
		}
		
		Collections.sort(tasks, PUBLISH_OPERATION_COMPARTOR);
		
		return tasks.toArray(new PublishOperation[tasks.size()]);
	}

	public String getPublishOperationId(PublishOperation op) {
		return getId()+"|"+op.getLabel();
	}

	/**
	 * Returns a list containing module arrays of every module on the
	 * server.
	 * 
	 * @return a list of IModule[]
	 */
	public List<IModule[]> getAllModules() {
		final List<IModule[]> moduleList = new ArrayList<IModule[]>();
		
		IModuleVisitor visitor = new IModuleVisitor() {
			public boolean visit(IModule[] module) {
				if (!moduleList.contains(module))
					moduleList.add(module);
				return true;
			}
		};
		
		visit(visitor, null);
		
		return moduleList;
	}

	/*
	 * Returns the module resources that have been published.
	 * 
	 * @see ServerBehaviourDelegate.getPublishedResources(IModule[])
	 */
	public IModuleResource[] getResources(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		return getServerPublishInfo().getResources(module);
	}

	/*
	 * Returns the module resources that have been published.
	 * 
	 * @see ServerBehaviourDelegate.getPublishedResources(IModule[])
	 */
	public IModuleResource[] getPublishedResources(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		return getServerPublishInfo().getModulePublishInfo(module).getResources();
	}

	/*
	 * Returns the delta of the current module resources that have been
	 * published compared to the current state of the module.
	 * 
	 * @see ServerBehaviourDelegate.getPublishedResourceDelta(IModule[])
	 */
	public IModuleResourceDelta[] getPublishedResourceDelta(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		return getServerPublishInfo().getDelta(module);
	}

	/*
	 * Returns the delta of the current module resources that have been
	 * published compared to the current state of the module.
	 * 
	 * @see ServerBehaviourDelegate.getPublishedResourceDelta(IModule[])
	 */
	public boolean hasPublishedResourceDelta(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		return getServerPublishInfo().hasDelta(module);
	}

	/**
	 * @see IServer#getAdapter(Class)
	 */
	public Object getAdapter(Class adapter) {
		if (delegate != null) {
			if (adapter.isInstance(delegate))
				return delegate;
		}
		if (behaviourDelegate != null) {
			if (adapter.isInstance(behaviourDelegate))
				return behaviourDelegate;
		}
		return Platform.getAdapterManager().getAdapter(this, adapter);
	}

	/**
	 * @see IServer#loadAdapter(Class, IProgressMonitor)
	 */
	public Object loadAdapter(Class adapter, IProgressMonitor monitor) {
		getDelegate(monitor);
		if (adapter.isInstance(delegate))
			return delegate;
		
		getBehaviourDelegate(monitor);
		if (adapter.isInstance(behaviourDelegate))
			return behaviourDelegate;
		
		return Platform.getAdapterManager().loadAdapter(this, adapter.getName());
	}

	/**
	 * Returns true if the server is in a state that it can
	 * be started, and supports the given mode.
	 *
	 * @param mode2
	 * @return status
	 */
	public IStatus canStart(String mode2) {
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		int state = getServerState();
		if( state == STATE_STARTED )
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.canStartErrorStateStarted, null);
		
		if (state != STATE_STOPPED && state != STATE_UNKNOWN)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.canStartErrorState, null);
		
		if (!getServerType().supportsLaunchMode(mode2))
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorLaunchMode, null);
		
		if (getBehaviourDelegate(new NullProgressMonitor()) != null)
			return getBehaviourDelegate(new NullProgressMonitor()).canStart(mode2);
		
		return Status.OK_STATUS;
	}

	public ILaunch getLaunch() {
		if (launch != null && !launch.isTerminated())
			return launch;
		return null;
	}
	
	public void setLaunch(ILaunch launch) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "setLaunch() " + launch);
		}
		this.launch = launch;
	}

	public void setupLaunchConfiguration(ILaunchConfigurationWorkingCopy workingCopy, IProgressMonitor monitor) {
		try {
			getBehaviourDelegate(monitor).setupLaunchConfiguration(workingCopy, monitor);
		} catch (Exception e) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error calling delegate setupLaunchConfiguration() " + toString(), e);
			}
		}
	}

	/**
	 * Return the launch configuration for this server. If one does not exist, it
	 * will be created if "create" is true, and otherwise will return <code>null</code>.
	 * Will return <code>null</code> if this server type has no associated launch
	 * configuration type (i.e. the server cannot be started).
	 * 
	 * @param create <code>true</code> if a new launch configuration should be
	 *    created if there are none already
	 * @param monitor a progress monitor, or <code>null</code> if progress
	 *    reporting and cancellation are not desired
	 * @return the launch configuration, or <code>null</code> if there was no
	 *    existing launch configuration and <code>create</code> was false
	 * @throws CoreException
	 */
	public ILaunchConfiguration getLaunchConfiguration(boolean create, IProgressMonitor monitor) throws CoreException {
		if (getServerType() == null)
			return null;
		
		ILaunchConfigurationType launchConfigType = ((ServerType) getServerType()).getLaunchConfigurationType();
		if (launchConfigType == null)
			return null;
		
		ILaunchManager launchManager = DebugPlugin.getDefault().getLaunchManager();
		ILaunchConfiguration[] launchConfigs = null;
		try {
			launchConfigs = launchManager.getLaunchConfigurations(launchConfigType);
		} catch (CoreException e) {
			// ignore
		}
		
		if (launchConfigs != null) {
			int size = launchConfigs.length;
			for (int i = 0; i < size; i++) {
				try {
					String serverId = launchConfigs[i].getAttribute(SERVER_ID, (String) null);
					if (getId().equals(serverId)) {
						final ILaunchConfigurationWorkingCopy wc = launchConfigs[i].getWorkingCopy();
						setupLaunchConfiguration(wc, monitor);
						if (wc.isDirty()) {
							final ILaunchConfiguration[] lc = new ILaunchConfiguration[1];
							Job job = new Job("Saving launch configuration") {
								protected IStatus run(IProgressMonitor monitor2) {
									try {
										lc[0] = wc.doSave();
									} catch (CoreException ce) {
										if (Trace.SEVERE) {
											Trace.trace(Trace.STRING_SEVERE, "Error configuring launch", ce);
										}
									}
									return Status.OK_STATUS;
								}
							};
							job.setSystem(true);
							job.schedule();
							try {
								job.join();
							} catch (Exception e) {
								if (Trace.SEVERE) {
									Trace.trace(Trace.STRING_SEVERE, "Error configuring launch", e);
								}
							}
							if (job.getState() != Job.NONE) {
								job.cancel();
								lc[0] = wc.doSave();
							}
							
							return lc[0];
						}
						return launchConfigs[i];
					}
				} catch (CoreException e) {
					if (Trace.SEVERE) {
						Trace.trace(Trace.STRING_SEVERE, "Error configuring launch", e);
					}
				}
			}
		}
		
		if (!create)
			return null;
		
		// create a new launch configuration
		String launchName = getValidLaunchConfigurationName(getName());
		launchName = launchManager.generateUniqueLaunchConfigurationNameFrom(launchName); 
		ILaunchConfigurationWorkingCopy wc = launchConfigType.newInstance(null, launchName);
		wc.setAttribute(SERVER_ID, getId());
		setupLaunchConfiguration(wc, monitor);
		return wc.doSave();
	}

	protected String getValidLaunchConfigurationName(String s) {
		if (s == null || s.length() == 0)
			return "1";
		int size = INVALID_CHARS.length;
		for (int i = 0; i < size; i++) {
			s = s.replace(INVALID_CHARS[i], '_');
		}
		return s;
	}

	/**
	 * Clean up any metadata associated with the server, typically in preparation for
	 * deletion.
	 */
	protected void deleteMetadata() {
		deleteLaunchConfigurations();
		ServerPlugin.getInstance().removeTempDirectory(getId());
		PublishInfo.getInstance().removeServerPublishInfo(this);
	}

	/**
	 * Clean up any old launch configurations with the current server's id.
	 */
	protected void deleteLaunchConfigurations() {
		if (getServerType() == null)
			return;
		
		ILaunchManager launchManager = DebugPlugin.getDefault().getLaunchManager();
		ILaunchConfigurationType launchConfigType = ((ServerType) getServerType()).getLaunchConfigurationType();
		
		ILaunchConfiguration[] configs = null;
		try {
			configs = launchManager.getLaunchConfigurations(launchConfigType);
			int size = configs.length;
			for (int i = 0; i < size; i++) {
				try {
					if (getId().equals(configs[i].getAttribute(SERVER_ID, (String) null)))
						configs[i].delete();
				} catch (Exception e) {
					// ignore
				}
			}
		} catch (Exception e) {
			// ignore
		}
	}

	/**
	 * @see IServer#canRestart(String)
	 */
	public IStatus canRestart(String mode2) {
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		if (!getServerType().supportsLaunchMode(mode2))
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorLaunchMode, null);
		
		if (getServerState() != STATE_STARTED)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorRestartNotStarted, null);
		
		if (getBehaviourDelegate(new NullProgressMonitor()) != null)
			return getBehaviourDelegate(new NullProgressMonitor()).canRestart(mode2);
		
		return Status.OK_STATUS;
	}

	/**
	 * Returns the current restart state of the server. This
	 * implementation will always return false when the server
	 * is stopped.
	 *
	 * @return boolean
	 */
	public boolean getServerRestartState() {
		if (getServerState() == STATE_STOPPED)
			return false;
		return serverRestartNeeded;
	}

	/**
	 * Sets the server restart state.
	 *
	 * @param state boolean
	 */
	public synchronized void setServerRestartState(boolean state) {
		if (state == serverRestartNeeded)
			return;
		serverRestartNeeded = state;
		fireRestartStateChangeEvent();
	}

	/**
	 * @see IServer#restart(String, IProgressMonitor)
	 */
	public void restart(final String mode2, final IProgressMonitor monitor) {
		if (getServerType() == null || getServerState() == STATE_STOPPED)
			return;
		
		if (getServerType() == null)
			return;
		
		if (getServerState() == STATE_STOPPED)
			return;
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Restarting server: " + getName());
		}
		
		RestartJob restartJob = new RestartJob(mode2);
		restartJob.schedule();
	}

	/**
	 * Returns true if the server is in a state that it can
	 * be stopped.
	 *
	 * @return boolean
	 */
	public IStatus canStop() {
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		if (getServerState() == STATE_STOPPED || getServerState() == STATE_STOPPING)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorStopAlreadyStopped, null);
		
		if (!getServerType().supportsLaunchMode(getMode()))
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorLaunchMode, null);
		
		if (getBehaviourDelegate(new NullProgressMonitor()) != null)
			return getBehaviourDelegate(new NullProgressMonitor()).canStop();
		
		return Status.OK_STATUS;
	}

	/**
	 * @see IServer#stop(boolean)
	 */
	public void stop(boolean force) {
		if (getServerState() == STATE_STOPPED)
			return;
		
		StopJob job = new StopJob(force);
		job.schedule();
	}
	
	/**
	 * Publish before starting the server.
	 * 
	 * If the server is in a state where it must publish before starting, this method
	 * will run the publishing operation. Otherwise, it will return an OK status. 
	 *  
	 * If this is a synchronous call, it will *only* run the publish job, and join on it, 
	 * returning the result from the job. 
	 * 
	 * If this is an asynchronous call, it will schedule a job chain consisting of
	 * the publish job and the start job, and schedule it. It will then return an OK status. 
	 * 
	 * This method should not be used when an IOperationListener is required
	 * 
	 * Callers should take care that in the event of an asynchronous call, they are not 
	 * scheduling the StartJob twice. 
	 * 
	 * @param monitor
	 * @param startJob
	 * @param synchronous
	 * @return the status of the publish. Status.OK_STATUS or Status.CANCEL_STATUS if publishing cancelled  
	 */

	protected IStatus publishBeforeStart(IProgressMonitor monitor, final StartJob startJob, final boolean synchronous){
		return publishBeforeStart(monitor, startJob, synchronous, null);
	}
	
	protected IStatus publishBeforeStart(IProgressMonitor monitor, final StartJob startJob, final boolean synchronous, final IOperationListener listener){

		if( synchronous) {
			return publishBeforeStartSynchronous(monitor, listener);
		}
		
		Job j = getPublishAndStartAsynchChainedJob(monitor, startJob, listener);
		if( j != null ) 
			j.schedule();
		// Since this is asynchronous, always return OK_STATUS.
		return Status.OK_STATUS;
	}

	/**
	 * Execute the publish-before-start synchronous job. 
	 * 
	 * @param monitor
	 * @return the status of the publish. Status.OK_STATUS or Status.CANCEL_STATUS if publishing cancelled
	 */
	protected IStatus publishBeforeStartSynchronous(IProgressMonitor monitor, final IOperationListener listener){
		if( shouldPublishBeforeOrAfterStart() != StartJob.PUBLISH_BEFORE) {
			return Status.OK_STATUS;
		}
		
		final IStatus [] pubStatus = new IStatus[]{Status.OK_STATUS};
		
		// publish before start and wait for it to finish
		PublishJob pubJob = new PublishJob(IServer.PUBLISH_INCREMENTAL, null,false, null);
		pubJob.addJobChangeListener(new JobChangeAdapter(){
			public void done(IJobChangeEvent event) {
				IStatus status = event.getResult();
				if (status != null && status.getSeverity() == IStatus.ERROR) {
					pubStatus[0] = status;
					if (Trace.INFO) {
						Trace.trace(Trace.STRING_INFO,
								"Skipping server start job schedule since the server publish failed on a publish before start server."); //$NON-NLS-1$
					}
					if( listener != null )
						listener.done(status);
				} 
			}
		});
		pubJob.schedule();
		try {
			pubJob.join();
		} catch (InterruptedException ie) {
			return Status.CANCEL_STATUS;
		}
		return pubStatus[0];
	}
	
	/**
	 * The publish-before-start asynchronous job will add a job listener to
	 * run the start job if the publish was a success. It only does this 
	 * to ensure the jobs are properly chained. Otherwise, it is impossible to 
	 * ensure the start job (also scheduled asynchronously) would be run after the completion of 
	 * the publish job.  
	 * 
	 * Anyone calling this method should take care to NOT schedule the startJob on their own, 
	 * as it's already been called in this instance!
	 * 
	 * This method only returns the job, but does not schedule it. 
	 * It may return null if no job needs to be executed
	 * 
	 * @param monitor 
	 * @param startJob The start job we may wish to chain
	 * @return the asynchronous publishing and starting Job
	 */
	protected Job getPublishAndStartAsynchChainedJob(IProgressMonitor monitor, final StartJob startJob, final IOperationListener listener){
		if( shouldPublishBeforeOrAfterStart() != StartJob.PUBLISH_BEFORE) {
			return null;
		}

		// publish before start
		PublishJob pubJob = new PublishJob(IServer.PUBLISH_INCREMENTAL, null,false, null);
		pubJob.addJobChangeListener(new JobChangeAdapter(){
			public void done(IJobChangeEvent event) {
				IStatus status = event.getResult();
				if (status == null || status.getSeverity() != IStatus.ERROR) {
					if (Trace.INFO) {
						Trace.trace(Trace.STRING_INFO,
								"Scheduling server start job after successful publish."); //$NON-NLS-1$
					}
					// Schedule the server start job since the publish operation is completed successfully.
					startJob.schedule();
				} else {
					if( listener != null )
						listener.done(status);
				}
			}
			
		});
		return pubJob;
	}
	
	
	/**
	 * Get whether we need to publish before or after the start job, 
	 * or if no publish is required.
	 *  
	 * @return
	 */
	private byte shouldPublishBeforeOrAfterStart() {
		// check if we need to publish
		byte pub = StartJob.PUBLISH_NONE;
		if (ServerCore.isAutoPublishing() && shouldPublish()) {
			if (((ServerType)getServerType()).startBeforePublish())
				pub = StartJob.PUBLISH_AFTER;
			else {
				pub = StartJob.PUBLISH_BEFORE;
			}
		}
		return pub;
	}
	
	protected IStatus publishAfterStart(IProgressMonitor monitor, boolean synchronous, final IOperationListener op){
		
		// check if we need to publish
		if( shouldPublishBeforeOrAfterStart() != StartJob.PUBLISH_AFTER) {
			if(op != null) {
				op.done(Status.OK_STATUS);
			}
			return Status.OK_STATUS;
		}
		
		final IStatus [] pubStatus = new IStatus[]{Status.OK_STATUS};
		
		PublishJob pubJob = new PublishJob(IServer.PUBLISH_INCREMENTAL, null,false, null);
		pubJob.addJobChangeListener(new JobChangeAdapter(){
			public void done(IJobChangeEvent event) {
				IStatus status = event.getResult();
				if (status != null && status.getSeverity() == IStatus.ERROR)
					pubStatus[0] = status; 
				if (op != null){
					op.done(status);
				}
			}
			
		});
		
		pubJob.schedule();
		
		try{
			if (synchronous)
				pubJob.join();
		}
		catch (InterruptedException ie){
			return Status.CANCEL_STATUS;
		}
		return pubStatus[0];
	}
	
	/**
	 * Run the start logic with the synchronization flag taken from the server type
	 * 
	 * @param mode2       A mode to run
	 * @param monitor     A progress monitor
	 * @see IServer#start(String, IProgressMonitor)
	 */
	public void start(String mode2, IProgressMonitor monitor) throws CoreException {
		start(mode2,  ((ServerType)getServerType()).synchronousStart(), monitor);
	}
	

	/**
	 * Run the start logic, forcing a synchronized workflow
	 * 
	 * @param mode2       A mode to run
	 * @param monitor     A progress monitor
	 */
	public void synchronousStart(String mode2, IProgressMonitor monitor) throws CoreException {
		start(mode2, true, monitor);
	}
	
	/**
	 * Run the start logic
	 * @param mode2       A mode to run
	 * @param synchronous Whether to do it synchronously or not
	 * @param monitor     A progress monitor
	 */
	private void start(String mode2, final boolean synchronous, IProgressMonitor monitor) {
		start(mode2, synchronous, null, monitor);
	}
	
	/**
	 * Run the start logic
	 * @param mode2       A mode to run
	 * @param synchronous Whether to do it synchronously or not
	 * @param opListener  An optional opListener for asynchronous calls
	 * @param monitor     A progress monitor
	 */
	private void start(String mode2, final boolean synchronous, final IOperationListener opListener, IProgressMonitor monitor) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Starting server: " + toString() + ", launchMode: " + mode2); //$NON-NLS-1$ //$NON-NLS-2$
		}
		// First check some pre-reqs
		if (getServerType() == null) {
			if (opListener != null)
				opListener.done(Status.OK_STATUS);
			return;
		}
		
		// make sure that the delegate is loaded and the server state is correct
		loadAdapter(ServerBehaviourDelegate.class, null);
		
		// Save all editors
		if (ServerPlugin.isRunningGUIMode()){
			ServerPlugin.getSaveEditorHelper().saveAllEditors();
		}
		
		StartJob startJob = new StartJob(mode2);
		final IProgressMonitor monitor2 = (monitor == null ? new NullProgressMonitor() : monitor); 
		final byte pub = shouldPublishBeforeOrAfterStart();
				
		// Add listeners for what to do once the startJob is over. 
		// This may include running a publish (if we publish after start), or
		// simply marking the opListener as done.  
		startJob.addJobChangeListener(new JobChangeAdapter() {
			public void done(IJobChangeEvent event) {
				if( pub == StartJob.PUBLISH_AFTER ) {
					IStatus resultStatus = event.getResult();
					// 287442 - only do publish after start if the server start is successful.
					if (resultStatus != null && resultStatus.getSeverity() == IStatus.ERROR) { 
						if (Trace.INFO) {
							Trace.trace(Trace.STRING_INFO,
									"Skipping auto publish after server start since the server start failed."); //$NON-NLS-1$
							if (opListener != null)
								opListener.done(Status.OK_STATUS);
						}
					} else {
						publishAfterStart(monitor2,synchronous,opListener);
					}
				} else if( opListener != null ) {
					// we're marked to publish BEFORE start, so no action needs to be taken after start
					opListener.done(event.getResult());
				}
			}
		});
		
		// Should *we* kick the start job? Or has it been done for us already by a chained asynch call?
		boolean kickStartJob = true;  
		if (pub == StartJob.PUBLISH_BEFORE) {
			// Only one situation can chain the start job for us:  publish_before + asynchronous. 
			// If our publishBeforeStart is asynchronous, then we must NOT kick the start job ourselves,
			// because our publishBeforeStart has already chained them together.
			if( !synchronous )
				kickStartJob = false;
			
			IStatus status = publishBeforeStart(new NullProgressMonitor(), startJob, synchronous, opListener);
			if (status != null && status.getSeverity() == IStatus.ERROR){
				if (Trace.FINEST) {
					Trace.trace(Trace.STRING_FINEST, "Failed publish job during start routine"); //$NON-NLS-1$
				}
				if (opListener != null)
					opListener.done(Status.OK_STATUS);
				return;
			}
		}

		// If the asynchronous publish job is kicking the start job, then we don't kick it. 
		if( kickStartJob ) {
			startJob.schedule();
			try {
				if(synchronous)
					startJob.join();
			} catch (InterruptedException e) {
				if (Trace.WARNING) {
					Trace.trace(Trace.STRING_WARNING, "Error waiting for job", e); //$NON-NLS-1$
				}
			}
		}
	}
	
	/**
	 * @see IServer#start(String, IOperationListener)
	 */
	public void start(String mode2, final IOperationListener opListener) {
		start(mode2, ((ServerType)getServerType()).synchronousStart(), opListener, new NullProgressMonitor());
	}
	

	/*
	 * @see IServer#synchronousRestart(String, IProgressMonitor)
	 */
	public void synchronousRestart(String mode2, IProgressMonitor monitor) throws CoreException {
		synchronousStop(true);
		synchronousStart(mode2, monitor);
	}

	/*
	 * @see IServer#restart(String, IOperationListener)
	 */
	public void restart(String mode2, final IOperationListener opListener) {
		if (getServerType() == null) {
			if (opListener != null)
				opListener.done(Status.OK_STATUS);
			return;
		}
		
		if (getServerState() == STATE_STOPPED) {
			if (opListener != null)
				opListener.done(Status.OK_STATUS);
			return;
		}
		
		RestartJob restartJob = new RestartJob(mode2);
		if (opListener != null) {
			restartJob.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		restartJob.schedule();
	}

	/*
	 * @see IServer#stop(boolean, IOperationListener)
	 */
	public void stop(boolean force, final IOperationListener opListener) {
		if (getServerType() == null) {
			if (opListener != null)
				opListener.done(Status.OK_STATUS);
			return;
		}
		
		if (getServerState() == IServer.STATE_STOPPED) {
			if (opListener != null)
				opListener.done(Status.OK_STATUS);
			return;
		}
		
		StopJob job = new StopJob(force);
		if (opListener != null) {
			job.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		job.schedule();
	}

	/*
	 * @see IServer#synchronousStop()
	 */
	public void synchronousStop(boolean force) {
		if (getServerType() == null)
			return;
		
		if (getServerState() == IServer.STATE_STOPPED)
			return;
		
		StopJob job = new StopJob(force);
		job.schedule();
		try {
			job.join();
		} catch (InterruptedException e) {
			if (Trace.WARNING) {
				Trace.trace(Trace.STRING_WARNING, "Error waiting for job", e);
			}
		}
	}

	/*
	 * Trigger a restart of the given module and wait until it has finished restarting.
	 *
	 * @param module org.eclipse.wst.server.core.IModule
	 * @param monitor org.eclipse.core.runtime.IProgressMonitor
	 * @exception org.eclipse.core.runtime.CoreException - thrown if an error occurs while trying to restart the module
	 *
	public void synchronousRestartModule(final IModule[] module, IProgressMonitor monitor) throws CoreException {
		Trace.trace(Trace.FINEST, "synchronousModuleRestart 1");

		final Object mutex = new Object();
	
		// add listener to the module
		IServerListener listener = new IServerListener() {
			public void serverChanged(ServerEvent event) {
				int eventKind = event.getKind();
				IServer server = event.getServer();
				if (eventKind == (ServerEvent.MODULE_CHANGE | ServerEvent.STATE_CHANGE)) {
					int state = server.getModuleState(module);
					if (state == IServer.STATE_STARTED || state == IServer.STATE_STOPPED) {
						// notify waiter
						synchronized (mutex) {
							try {
								Trace.trace(Trace.FINEST, "synchronousModuleRestart notify");
								mutex.notifyAll();
							} catch (Exception e) {
								Trace.trace(Trace.SEVERE, "Error notifying module restart", e);
							}
						}
					}
				}
			}
		};
		addServerListener(listener);
		
		// make sure it times out after 30s
		class Timer {
			boolean timeout;
			boolean alreadyDone;
		}
		final Timer timer = new Timer();
		
		Thread thread = new Thread() {
			public void run() {
				try {
					Thread.sleep(30000);
					if (!timer.alreadyDone) {
						timer.timeout = true;
						// notify waiter
						synchronized (mutex) {
							Trace.trace(Trace.FINEST, "synchronousModuleRestart notify timeout");
							mutex.notifyAll();
						}
					}
				} catch (Exception e) {
					Trace.trace(Trace.SEVERE, "Error notifying module restart timeout", e);
				}
			}
		};
		thread.setDaemon(true);
		thread.start();
	
		Trace.trace(Trace.FINEST, "synchronousModuleRestart 2");
	
		// restart the module
		try {
			getBehaviourDelegate(null).restartModule(module, monitor);
		} catch (CoreException e) {
			removeServerListener(listener);
			throw e;
		}
	
		Trace.trace(Trace.FINEST, "synchronousModuleRestart 3");
	
		// wait for it! wait for it! ...
		synchronized (mutex) {
			try {
				while (!timer.timeout && !(getModuleState(module) == IServer.STATE_STARTED || getModuleState(module) == IServer.STATE_STOPPED))
					mutex.wait();
			} catch (Exception e) {
				Trace.trace(Trace.SEVERE, "Error waiting for server start", e);
			}
		}
		removeServerListener(listener);
		if (timer.timeout)
			throw new CoreException(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorModuleRestartFailed, getName()), null));
		timer.alreadyDone = true;
		
		if (getModuleState(module) == IServer.STATE_STOPPED)
			throw new CoreException(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorModuleRestartFailed, getName()), null));
	
		Trace.trace(Trace.FINEST, "synchronousModuleRestart 4");
	}*/

	public IPath getTempDirectory() {
		return ServerPlugin.getInstance().getTempDirectory(getId());
	}

	public IPath getTempDirectory(boolean recycle) {
		return ServerPlugin.getInstance().getTempDirectory(getId(), recycle);
	}

	protected String getXMLRoot() {
		return "server";
	}

	protected void loadState(IMemento memento) {
		resolve();
	}

	public void serialize(IMemento memento) {
		save(memento);
	}

	public void deserialize(IMemento memento) {
		load(memento);
	}

	protected void resolve() {
		IServerType oldServerType = serverType;
		String serverTypeId = getAttribute("server-type-id", (String)null);
		if (serverTypeId != null)
			serverType = ServerCore.findServerType(serverTypeId);
		else
			serverType = null;
		if (serverType != null && !serverType.equals(oldServerType))
			serverState = ((ServerType)serverType).getInitialState();
		
		String runtimeId = getAttribute(RUNTIME_ID, (String)null);
		if (runtimeId != null)
			runtime = ServerCore.findRuntime(runtimeId);
		
		String configPath = getAttribute(CONFIGURATION_ID, (String)null);
		configuration = null;
		if (configPath != null)
			configuration = ResourcesPlugin.getWorkspace().getRoot().getFolder(new Path(configPath));

		// for migration from WTP 2.0 -> WTP 3.0
		int autoPubSetting = getAttribute(PROP_AUTO_PUBLISH_SETTING, AUTO_PUBLISH_RESOURCE);
		if (autoPubSetting == 0)
			map.put(PROP_AUTO_PUBLISH_SETTING, AUTO_PUBLISH_RESOURCE);
	}

	protected void setInternal(ServerWorkingCopy wc) {
		map = new HashMap<String, Object>(wc.map);
		configuration = wc.configuration;
		runtime = wc.runtime;
		serverSyncState = wc.serverSyncState;
		//restartNeeded = wc.restartNeeded;
		serverType = wc.serverType;
		synchronized(modulesLock){
			modules = wc.modules;
		}
		
		// can never modify the following properties via the working copy
		//serverState = wc.serverState;
		delegate = wc.delegate;
		
	}

	protected void saveState(IMemento memento) {
		if (serverType != null)
			memento.putString("server-type", serverType.getId());
		
		if (configuration != null)
			memento.putString(CONFIGURATION_ID, configuration.getFullPath().toString());
		else
			memento.putString(CONFIGURATION_ID, null);
		
		if (runtime != null)
			memento.putString(RUNTIME_ID, runtime.getId());
		else
			memento.putString(RUNTIME_ID, null);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#canModifyModule(org.eclipse.wst.server.core.model.IModule)
	 */
	public IStatus canModifyModules(IModule[] add, IModule[] remove, IProgressMonitor monitor) {
		if ((add == null || add.length == 0) && (remove == null || remove.length == 0))
			throw new IllegalArgumentException("Add and remove cannot both be null/empty");
		
		if (add != null) {
			int size = add.length;
			for (int i = 0; i < size; i++)
				if (add[i] == null)
					throw new IllegalArgumentException("Cannot add null entries");
		}
		
		if (remove != null) {
			int size = remove.length;
			for (int i = 0; i < size; i++)
				if (remove[i] == null)
					throw new IllegalArgumentException("Cannot remove null entries");
		}
		
		if (getServerType() == null)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorMissingAdapter, null);
		
		if (add != null && add.length > 0) {
			int size = add.length;
			for (int i = 0; i < size; i++) {
				IModuleType moduleType = add[i].getModuleType(); 
				if (!ServerUtil.isSupportedModule(getServerType().getRuntimeType().getModuleTypes(), moduleType))
					return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorCannotAddModule,
							new Object[] { moduleType.getName(), moduleType.getVersion() }), null);
			}
		}
		
		try {
			return getDelegate(monitor).canModifyModules(add, remove);
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, e.getMessage(), e);
		}
	}
	
	public void clearModuleCache() {
		synchronized (modulesLock){
			modules = null;
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#getModules()
	 */
	public IModule[] getModules() {
		synchronized (modulesLock){
			return getModulesWithoutLock();
		}
	}

	/* (non-Javadoc)
	 * The implementation for getModules but this one does not lock the modules object. Caller is responsible for locking the modulesLock
	 * object when calling this method for thread safe implementation.
	 * @see org.eclipse.wst.server.core.IServer#getModules()
	 */
	protected IModule[] getModulesWithoutLock() {
		if (modules == null) {
			// convert from attribute
			List<String> list = getAttribute(MODULE_LIST, (List<String>) null);
			if (list == null)
				list = new ArrayList<String>(1);
			
			modules = new ArrayList<IModule>(list.size() + 1);
			Iterator iterator = list.iterator();
			while (iterator.hasNext()) {
				String moduleId = (String) iterator.next();
				String name = "<unknown>";
				int index = moduleId.indexOf("::");
				if (index > 0) {
					name = moduleId.substring(0, index);
					moduleId = moduleId.substring(index+2);
				}
				
				String moduleTypeId = null;
				String moduleTypeVersion = null;
				index = moduleId.indexOf("::");
				if (index > 0) {
					int index2 = moduleId.indexOf("::", index+1);
					moduleTypeId = moduleId.substring(index+2, index2);
					moduleTypeVersion = moduleId.substring(index2+2);
					moduleId = moduleId.substring(0, index);
				}
				
				IModule module = ServerUtil.getModule(moduleId);
				if (module == null) {
					IModuleType moduleType = null;
					if (moduleTypeId != null)
						moduleType = ModuleType.getModuleType(moduleTypeId, moduleTypeVersion);
					module = new DeletedModule(moduleId, name, moduleType);
				}
				modules.add(module);
			}
		}
		
		List em = getExternalModules();
		if (em == null || em.isEmpty()) {
			IModule[] modules2 = new IModule[modules.size()];
			modules.toArray(modules2);
			return modules2;
		}
		
		IModule[] modules2 = new IModule[modules.size() + em.size()];
		modules.toArray(modules2);
		
		Object[] obj = em.toArray();
		System.arraycopy(obj, 0, modules2, modules.size(), em.size());
		
		return modules2;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#getModuleState()
	 */
	public int getModuleState(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			Integer in = moduleState.get(getKey(module));
			if (in != null)
				return in.intValue();
		} catch (Exception e) {
			// ignore
		}
		return STATE_UNKNOWN;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#getModuleState()
	 */
	public int getModulePublishState(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			Integer in = modulePublishState.get(getKey(module));
			if (in != null)
				return in.intValue();
		} catch (Exception e) {
			// ignore
		}
		return PUBLISH_STATE_UNKNOWN;
	}

	/*
	 * @see IServer#getChildModule(IModule[])
	 */
	public IModule[] getChildModules(IModule[] module, IProgressMonitor monitor) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			int i = module.length - 1;
			if (!module[i].isExternal() && (module[i].getProject() == null || !module[i].getProject().isAccessible()))
				return new IModule[0];
			
			ServerDelegate sd = getDelegate(monitor);
			if (sd == null)
				return new IModule[0];
			IModule[] children = sd.getChildModules(module);
			if (children != null && children.length == 1 && children[0].equals(module[module.length - 1]))
				return new IModule[0];
			return children;
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
			return new IModule[0];
		}
	}

	/*
	 * @see IServer#getRootModules(IModule)
	 */
	public IModule[] getRootModules(IModule module, IProgressMonitor monitor) throws CoreException {
		if (module == null)
			throw new IllegalArgumentException("Module cannot be null");
		try {
			return getDelegate(monitor).getRootModules(module);
		} catch (CoreException se) {
			throw se;
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
			return null;
		}
	}

	/**
	 * Returns whether the given module can be restarted.
	 *
	 * @param module the module
	 * @param monitor
	 * @return <code>true</code> if the given module can be
	 *    restarted, and <code>false</code> otherwise
	 * @deprecated use canRestartModule or canPublishModule
	 */
	public IStatus canControlModule(IModule[] module, IProgressMonitor monitor) {		
		return canRestartModule(module,monitor);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#canRestartModule(org.eclipse.wst.server.core.IModule[], org.eclipse.core.runtime.IProgressMonitor)
	 */
	public IStatus canRestartModule(IModule[] module, IProgressMonitor monitor) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			ServerBehaviourDelegate bd = getBehaviourDelegate(monitor);
			if (bd == null)
				return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorRestartModule, null);
			boolean b = bd.canRestartModule(module);
			if (b)
				return Status.OK_STATUS;
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
		}
		return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorRestartModule, null);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.wst.server.core.IServer#canPublishModule(org.eclipse.wst.server.core.IModule[], org.eclipse.core.runtime.IProgressMonitor)
	 */
	public IStatus canPublishModule(IModule[] module, IProgressMonitor monitor) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			ServerBehaviourDelegate bd = getBehaviourDelegate(monitor);
			if (bd == null)
				return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorPublishModule, null);
			boolean b = bd.canPublishModule(module);
			if (b)
				return Status.OK_STATUS;
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
		}
		return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorPublishModule, null);
	}

	/**
	 * Check if the given module is in sync on the server. It should
	 * return true if the module should be restarted (is out of
	 * sync) or false if the module does not need to be restarted.
	 *
	 * @param module org.eclipse.wst.server.core.model.IModule
	 * @return boolean
	 */
	public boolean getModuleRestartState(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			Boolean b = moduleRestartState.get(getKey(module));
			if (b != null)
				return b.booleanValue();
		} catch (Exception e) {
			// ignore
		}
		return false;
	}

	abstract class OperationContext {
		public abstract void run(IProgressMonitor monitor) throws CoreException;
		public void cancel() {
			// do nothing
		}
		public abstract String getTimeoutMessage();
		public abstract String getFailureMessage();
	}
	/**
	 * 
	 * @param module the module that the operation applies to, or null for a server operation
	 * @param monitor cannot be null
	 * @return the status
	 */
	protected IStatus runAndWait(final IModule[] module, OperationContext runnable, final int operationTimeout, IProgressMonitor monitor) {
		final boolean[] notified = new boolean[1];
		IServerListener listener = new IServerListener() {
			public void serverChanged(ServerEvent event) {
				int eventKind = event.getKind();
				if ((eventKind | ServerEvent.STATE_CHANGE) != 0) {
					if ((module == null && (eventKind | ServerEvent.SERVER_CHANGE) != 0) ||
							(module != null && module.equals(event.getModule()) && (eventKind | ServerEvent.MODULE_CHANGE) != 0)) {
						int state = getServerState();
						if (state == IServer.STATE_STARTED || state == IServer.STATE_STOPPED) {
							// notify waiter
							synchronized (notified) {
								try {
									if (Trace.FINEST) {
										Trace.trace(Trace.STRING_FINEST, "runAndWait notify");
									}
									notified[0] = true;
									notified.notifyAll();
								} catch (Exception e) {
									if (Trace.SEVERE) {
										Trace.trace(Trace.STRING_SEVERE, "Error notifying runAndWait", e);
									}
								}
							}
						}
					}
				}
			}
		};
		
		class Timer {
			boolean timeout;
			boolean alreadyDone;
		}
		final Timer timer = new Timer();
		
		final IProgressMonitor monitor2 = monitor;
		Thread thread = new Thread("Server RunAndWait Timeout") {
			public void run() {
				try {
					int totalTimeout = operationTimeout;
					if (totalTimeout < 0)
						totalTimeout = 1;
					boolean userCancelled = false;
					int retryPeriod = 1;
					while (!notified[0] && totalTimeout > 0 && !userCancelled && !timer.alreadyDone) {
						// The operationTimeout is in seconds.  Therefore, each retry period have to wait for 1 sec.
						Thread.sleep(retryPeriod * 1000);
						if (operationTimeout > 0)
							totalTimeout -= retryPeriod;
						if (!notified[0] && !timer.alreadyDone && monitor2.isCanceled()) {
							// user canceled
							userCancelled = true;
							if (launch != null && !launch.isTerminated())
								launch.terminate();//TODO
							// notify waiter
							synchronized (notified) {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "runAndWait user cancelled");
								}
								notified[0] = true;
								notified.notifyAll();
							}
						}
					}
					if (!userCancelled && !timer.alreadyDone && !notified[0]) {
						// notify waiter
						synchronized (notified) {
							if (Trace.FINEST) {
								Trace.trace(Trace.STRING_FINEST, "runAndWait notify timeout");
							}
							if (!timer.alreadyDone && totalTimeout <= 0)
								timer.timeout = true;
							notified[0] = true;
							notified.notifyAll();
						}
					}
				} catch (Exception e) {
					if (Trace.SEVERE) {
						Trace.trace(Trace.STRING_SEVERE, "Error notifying runAndWait timeout", e);
					}
				}
			}
		};
		thread.setDaemon(true);
		thread.start();
	
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "runAndWait 2");
		}
	
		// do the operation
		try {
			runnable.run(monitor);
		} catch (CoreException e) {
			removeServerListener(listener);
			timer.alreadyDone = true;
			return e.getStatus();
		}
		if (monitor.isCanceled()) {
			removeServerListener(listener);
			timer.alreadyDone = true;
			return Status.CANCEL_STATUS;
		}
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "runAndWait 3");
		}
		
		// wait for it! wait for it! ...
		synchronized (notified) {
			try {
				while (!notified[0] && !monitor.isCanceled() && !timer.timeout
						&& !(getServerState() == IServer.STATE_STARTED || getServerState() == IServer.STATE_STOPPED)) {
					notified.wait();
				}
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "Error waiting for operation", e);
				}
			}
			timer.alreadyDone = true;
		}
		removeServerListener(listener);
		
		if (timer.timeout) {
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 1, NLS.bind(Messages.errorStartTimeout, new String[] { getName(), (operationTimeout / 1000) + "" }), null);
		}
		
		if (!monitor.isCanceled() && getServerState() == IServer.STATE_STOPPED)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 2, NLS.bind(Messages.errorStartFailed, getName()), null);
		
		return Status.OK_STATUS;
	}

	/*
	 * @see IServer#startModule(IModule[], IOperationListener)
	 */
	public void startModule(final IModule[] module, final IOperationListener opListener) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty or empty");
		
		Job moduleJob = new ServerJob(NLS.bind(Messages.jobStarting, module[0].getName())) {
			protected IStatus run(IProgressMonitor monitor) {
				return runAndWait(module, new OperationContext() {
					public String getFailureMessage() {
						return Messages.errorStartFailed;
					}

					public String getTimeoutMessage() {
						return Messages.errorStartTimeout;
					}

					public void run(IProgressMonitor monitor2) throws CoreException {
						try {
							getBehaviourDelegate(monitor2).startModule(module, monitor2);
						} catch (Exception e) {
							if (Trace.SEVERE) {
								Trace.trace(Trace.STRING_SEVERE, "Error calling delegate startModule() " + toString(),
										e);
							}
							throw new CoreException(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, e.getMessage()));
						}
					}
				}, getStartTimeout(), monitor);
			}
		};
		if (opListener != null) {
			moduleJob.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		moduleJob.schedule();
	}

	/*
	 * @see IServer#stopModule(IModule[], IOperationListener)
	 */
	public void stopModule(final IModule[] module, final IOperationListener opListener) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		
		Job moduleJob = new ServerJob(NLS.bind(Messages.jobStopping, module[0].getName())) {
			protected IStatus run(IProgressMonitor monitor) {
				return runAndWait(module, new OperationContext() {
					public String getFailureMessage() {
						return Messages.errorStopFailed;
					}

					public String getTimeoutMessage() {
						return Messages.errorStopFailed;
					}

					public void run(IProgressMonitor monitor2) throws CoreException {
						try {
							getBehaviourDelegate(monitor2).stopModule(module, monitor2);
						} catch (Exception e) {
							if (Trace.SEVERE) {
								Trace.trace(Trace.STRING_SEVERE, "Error calling delegate stopModule() " + toString(), e);
							}
							throw new CoreException(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, e.getMessage()));
						}
					}
				}, getStopTimeout(), monitor);
			}
		};
		if (opListener != null) {
			moduleJob.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		moduleJob.schedule();
	}

	/*
	 * @see IServer#restartModule(IModule[], IOperationListener, IProgressMonitor)
	 */
	public void restartModule(final IModule[] module, final IOperationListener opListener) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		
		Job moduleJob = new ServerJob(NLS.bind(Messages.jobRestarting, module[0].getName())) {
			protected IStatus run(IProgressMonitor monitor) {
				return runAndWait(module, new OperationContext() {
					public String getFailureMessage() {
						return Messages.errorRestartFailed;
					}

					public String getTimeoutMessage() {
						return Messages.errorRestartTimeout;
					}

					public void run(IProgressMonitor monitor2) throws CoreException {
						try {
							getBehaviourDelegate(monitor2).restartModule(module, monitor2);
						} catch (Exception e) {
							if (Trace.SEVERE) {
								Trace.trace(Trace.STRING_SEVERE,
										"Error calling delegate restartModule() " + toString(), e);
							}
							throw new CoreException(new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, e.getMessage()));
						}
					}
				}, getStopTimeout() + getStartTimeout(), monitor);
			}
		};
		if (opListener != null) {
			moduleJob.addJobChangeListener(new JobChangeAdapter() {
				public void done(IJobChangeEvent event) {
					opListener.done(event.getResult());
				}
			});
		}
		moduleJob.schedule();
	}

	/**
	 * Returns an array of IServerPorts that this server has.
	 * 
	 * @param monitor
	 * @return a possibly empty array of servers ports
	 */
	public ServerPort[] getServerPorts(IProgressMonitor monitor) {
		try {
			return getDelegate(monitor).getServerPorts();
		} catch (Exception e) {
			ServerPlugin.logExtensionFailure(toString(), e);
			return new ServerPort[0];
		}
	}

	/**
	 * Visit all the modules in the server with the given module visitor.
	 * 
	 * @param visitor the visitor
	 * @param monitor a progress monitor, or <code>null</code> if progress
	 *    reporting and cancellation are not desired
	 */
	public void visit(IModuleVisitor visitor, IProgressMonitor monitor) {
		if (visitor == null)
			throw new IllegalArgumentException("Visitor cannot be null");
		
		IModule[] modules2 = getModules();
		if (modules2 != null) { 
			int size = modules2.length;
			for (int i = 0; i < size; i++) {
				if (!visitModule(new IModule[] { modules2[i] }, visitor, monitor))
					return;
			}
		}
	}

	/**
	 * Returns true to keep visiting, and false to stop.
	 * 
	 * @param monitor a progress monitor, or <code>null</code> if progress
	 *    reporting and cancellation are not desired
	 */
	private boolean visitModule(IModule[] module, IModuleVisitor visitor, IProgressMonitor monitor) {
		if (module == null)
			return true;
		
		if (!visitor.visit(module))
			return false;
		
		IModule[] children = getChildModules(module, monitor);
		if (children != null) {
			int size = children.length;
			for (int i = 0; i < size; i++) {
				IModule[] module2 = new IModule[module.length + 1];
				System.arraycopy(module, 0, module2, 0, module.length);
				module2[module.length] = children[i];
				
				if (!visitModule(module2, visitor, monitor))
					return false;
			}
		}
		
		return true;
	}

	protected String getKey(IModule[] module) {
		StringBuffer sb = new StringBuffer();
		
		if (module != null) {
			int size = module.length;
			for (int i = 0; i < size; i++) {
				if (i != 0)
					sb.append("#");
				sb.append(module[i].getId());
			}
		}
		
		return sb.toString();
	}

	public void setModuleStatus(IModule[] module, IStatus status) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		moduleStatus.put(getKey(module), status);
		fireModuleStatusChangeEvent(module);
	}

	public IStatus getModuleStatus(IModule[] module) {
		if (module == null || module.length == 0)
			throw new IllegalArgumentException("Module cannot be null or empty");
		try {
			return moduleStatus.get(getKey(module));
		} catch (Exception e) {
			return null;
		}
	}

	public void setServerStatus(IStatus status) {
		serverStatus = status;
		fireServerStatusChangeEvent();
	}

	public IStatus getServerStatus() {
		return serverStatus;
	}

	/**
	 * Switch the server's location between the workspace and .metadata.
	 * 
	 * @param server a server
	 * @param monitor a progress monitor
	 * @throws CoreException if something goes wrong
	 */
	public static void switchLocation(Server server, IProgressMonitor monitor) throws CoreException {
		IFile file = server.getFile();
		ServerWorkingCopy wc = (ServerWorkingCopy) server.createWorkingCopy();
		server.delete();
		if (file == null) {
			IProject project = ServerType.getServerProject();
			file = ServerUtil.getUnusedServerFile(project, wc);
			wc.setFile(file);
			server.file = file;
		} else {
			wc.setFile(null);
			server.file = null;
		}
		wc.save(true, monitor);
	}

	/**
	 * Returns the current state of the server (see SERVER_XXX constants) after
	 * refreshing the state of the server. The only difference between this method
	 * and the method without a progress monitor is that this method may cause
	 * plugin loading and not return immediately. However, the server will always
	 * be updated and in sync, so the IServer.STATE_UNKNOWN state should never be
	 * returned.
	 * 
	 * @param monitor
	 * @return the server state
	 */
	public int getServerState(IProgressMonitor monitor) {
		loadAdapter(ServerBehaviourDelegate.class, monitor);
		return getServerState();
	}

	protected IStatus publishImpl(int kind, List<IModule[]> modules4, IAdaptable info, IProgressMonitor monitor) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "-->-- Publishing to server: " + Server.this.toString() + " -->--");
		}
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Server.publishImpl(): kind=<" + getPublishKindString(kind) + "> modules="
					+ modules4);
		}
		
		stopAutoPublish();
		
		try {
			long time = System.currentTimeMillis();
			firePublishStarted();
			
			getServerPublishInfo().startCaching();
			IStatus status = Status.OK_STATUS;
			try {
				getBehaviourDelegate(monitor).publish(kind, modules4, monitor, info);
			} catch (CoreException ce) {
				if (Trace.WARNING) {
					Trace.trace(Trace.STRING_WARNING, "Error during publishing", ce);
				}
				status = ce.getStatus();
			}
			
			final List<IModule[]> modules2 = new ArrayList<IModule[]>();
			visit(new IModuleVisitor() {
				public boolean visit(IModule[] module) {
					if (getModulePublishState(module) == IServer.PUBLISH_STATE_NONE)
						getServerPublishInfo().fill(module);
					
					modules2.add(module);
					return true;
				}
			}, monitor);
			
			getServerPublishInfo().removeDeletedModulePublishInfo(Server.this, modules2);
			getServerPublishInfo().clearCache();
			getServerPublishInfo().save();
			
			firePublishFinished(Status.OK_STATUS);
			if (Trace.PERFORMANCE) {
				Trace.trace(Trace.STRING_PERFORMANCE, "Server.publishImpl(): <" + (System.currentTimeMillis() - time)
						+ "> " + getServerType().getId());
			}
			return status;
		} catch (Exception e) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error calling delegate publish() " + Server.this.toString(), e);
			}
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorPublishing, e);
		}
	}

	protected IStatus restartImpl(String launchMode, IProgressMonitor monitor) {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Restarting server: " + getName());
		}
		
		ISchedulingRule curRule = null;
		try {
			try {
				// synchronous restart
				restartImpl2(launchMode, monitor);
				
				return Status.OK_STATUS;
			} catch (CoreException ce) {
				if (ce.getStatus().getCode() != -1) {
					if (Trace.SEVERE) {
						Trace.trace(Trace.STRING_SEVERE, "Error calling delegate restart() " + Server.this.toString());
					}
					return ce.getStatus();
				}
			}
			// if restart is not implemented by the server adopter
			// lets provide a default implementation
			// Ending the current rule setup by the RestartJob to prevent deadlock since the StopJob triggered
			// by the stop(false) also setup the Server as the scheduling rule.
			curRule = Job.getJobManager().currentRule();
			Job.getJobManager().endRule(curRule);
			stop(false);
			start(launchMode, monitor);
		} catch (Exception e) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error restarting server", e);
			}
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorStartFailed, getName()), e);
		} finally {
			if (curRule != null) {
				Job.getJobManager().beginRule(curRule, monitor);
			}
		}
		return Status.OK_STATUS;
	}

	/**
	 * Synchroneous restart. Throws a core exception in case the the adopter doesn't implement restart 
	 * @param launchMode
	 * @param monitor
	 * @return IStatus 
	 * @throws CoreException
	 */
	protected IStatus restartImpl2(String launchMode, IProgressMonitor monitor) throws CoreException{
		final boolean[] notified = new boolean[1];
		
		// add listener to the server
		IServerListener listener = new IServerListener() {
			public void serverChanged(ServerEvent event) {
				int eventKind = event.getKind();
				IServer server = event.getServer();
				if (eventKind == (ServerEvent.SERVER_CHANGE | ServerEvent.STATE_CHANGE)) {
					int state = server.getServerState();
					if (state == IServer.STATE_STARTED) {
						// notify waiter
						synchronized (notified) {
							try {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "synchronousRestart notify");
								}
								notified[0] = true;
								notified.notifyAll();
							} catch (Exception e) {
								if (Trace.SEVERE) {
									Trace.trace(Trace.STRING_SEVERE, "Error notifying server restart", e);
								}
							}
						}
					}
				}
			}
		};
		addServerListener(listener);
		
		final int restartTimeout = (getStartTimeout() * 1000) + (getStopTimeout() * 1000);
		class Timer {
			boolean timeout;
			boolean alreadyDone;
		}
		final Timer timer = new Timer();
		
		final IProgressMonitor monitor2 = monitor;
		Thread thread = new Thread("Server Restart Timeout") {
			public void run() {
				try {
					int totalTimeout = restartTimeout;
					if (totalTimeout < 0)
						totalTimeout = 1;
					boolean userCancelled = false;
					int retryPeriod = 2500;
					while (!notified[0] && totalTimeout > 0 && !userCancelled && !timer.alreadyDone) {
						Thread.sleep(retryPeriod);
						if (restartTimeout > 0)
							totalTimeout -= retryPeriod;
						if (!notified[0] && !timer.alreadyDone && monitor2.isCanceled()) {
							// user canceled - set the server state to stopped
							userCancelled = true;
							if (launch != null && !launch.isTerminated())
								launch.terminate();
							// notify waiter
							synchronized (notified) {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "synchronousRestart user cancelled");
								}
								notified[0] = true;
								notified.notifyAll();
							}
						}
					}
					if (!userCancelled && !timer.alreadyDone && !notified[0]) {
						// notify waiter
						synchronized (notified) {
							if (Trace.FINEST) {
								Trace.trace(Trace.STRING_FINEST, "synchronousRestart notify timeout");
							}
							if (!timer.alreadyDone && totalTimeout <= 0)
								timer.timeout = true;
							notified[0] = true;
							notified.notifyAll();
						}
					}
				} catch (Exception e) {
					if (Trace.SEVERE) {
						Trace.trace(Trace.STRING_SEVERE, "Error notifying server restart timeout", e);
					}
				}
			}
		};
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousRestart 2");
		}
		
		// call the delegate restart
		try {
			getBehaviourDelegate(null).restart(launchMode);
			
			thread.setDaemon(true);
			thread.start();
		} catch (CoreException e) {
			removeServerListener(listener);
			timer.alreadyDone = true;
			throw new CoreException(e.getStatus());
		}
		if (monitor.isCanceled()) {
			removeServerListener(listener);
			timer.alreadyDone = true;
			return Status.CANCEL_STATUS;
		}
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousRestart 3");
		}
		
		// wait for it! wait for it! ...
		synchronized (notified) {
			try {
				while (!notified[0] && !monitor.isCanceled() && !timer.timeout
						&& !(getServerState() == IServer.STATE_STARTED)) {
					notified.wait();
				}
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "Error waiting for server restart", e);
				}
			}
			timer.alreadyDone = true;
		}
		removeServerListener(listener);
		
		if (timer.timeout) {
			stop(false);
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorRestartTimeout, new String[] { getName(), (restartTimeout / 1000) + "" }), null);
		}
		
		if (!monitor.isCanceled() && getServerState() == IServer.STATE_STOPPED)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorRestartFailed, getName()), null);
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousRestart 4");
		}
		return Status.OK_STATUS;
	}
	
	protected IStatus startImpl(String launchMode, IProgressMonitor monitor) {
		final boolean[] notified = new boolean[1];
		
		monitor = ProgressUtil.getMonitorFor(monitor);
		
		// add listener to the server
		IServerListener listener = new IServerListener() {
			public void serverChanged(ServerEvent event) {
				int eventKind = event.getKind();
				IServer server = event.getServer();
				if (eventKind == (ServerEvent.SERVER_CHANGE | ServerEvent.STATE_CHANGE)) {
					int state = server.getServerState();
					if (state == IServer.STATE_STARTED || state == IServer.STATE_STOPPED) {
						// notify waiter
						synchronized (notified) {
							try {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "synchronousStart notify");
								}
								notified[0] = true;
								notified.notifyAll();
							} catch (Exception e) {
								if (Trace.SEVERE) {
									Trace.trace(Trace.STRING_SEVERE, "Error notifying server start", e);
								}
							}
						}
					}
				}
			}
		};
		addServerListener(listener);
		
		final int serverTimeout = getStartTimeout() * 1000;
		class Timer {
			boolean timeout;
			boolean alreadyDone;
		}
		final Timer timer = new Timer();
		
		final IProgressMonitor monitor2 = monitor;
		Thread thread = new Thread("Server Start Timeout") {
			public void run() {
				try {
					int totalTimeout = serverTimeout;
					if (totalTimeout < 0)
						totalTimeout = 1;
					boolean userCancelled = false;
					int retryPeriod = 1000;
					while (!notified[0] && totalTimeout > 0 && !userCancelled && !timer.alreadyDone) {
						Thread.sleep(retryPeriod);
						if (serverTimeout > 0)
							totalTimeout -= retryPeriod;
						if (!notified[0] && !timer.alreadyDone && monitor2.isCanceled()) {
							// user canceled - set the server state to stopped
							userCancelled = true;
							if (launch != null && !launch.isTerminated())
								launch.terminate();
							// notify waiter
							synchronized (notified) {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "synchronousStart user cancelled");
								}
								notified[0] = true;
								notified.notifyAll();
							}
						}
					}
					if (!userCancelled && !timer.alreadyDone && !notified[0]) {
						// notify waiter
						synchronized (notified) {
							if (Trace.FINEST) {
								Trace.trace(Trace.STRING_FINEST, "synchronousStart notify timeout");
							}
							if (!timer.alreadyDone && totalTimeout <= 0)
								timer.timeout = true;
							notified[0] = true;
							notified.notifyAll();
						}
					}
				} catch (Exception e) {
					if (Trace.SEVERE) {
						Trace.trace(Trace.STRING_SEVERE, "Error notifying server start timeout", e);
					}
				}
			}
		};
	
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousStart 2");
		}
	
		// start the server
		try {
			startImpl2(launchMode, monitor);
			
			thread.setDaemon(true);
			thread.start();			
		} catch (CoreException e) {
			removeServerListener(listener);
			return e.getStatus();
		}
		if (monitor.isCanceled()) {
			removeServerListener(listener);
			timer.alreadyDone = true;
			return Status.CANCEL_STATUS;
		}
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousStart 3");
		}
		
		// wait for it! wait for it! ...
		synchronized (notified) {
			try {
				while (!notified[0] && !monitor.isCanceled() && !timer.timeout
						&& !(getServerState() == IServer.STATE_STARTED || getServerState() == IServer.STATE_STOPPED)) {
					notified.wait();
				}
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "Error waiting for server start", e);
				}
			}
			timer.alreadyDone = true;
		}
		removeServerListener(listener);
		
		if (timer.timeout) {
			stop(false);
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorStartTimeout, new String[] { getName(), (serverTimeout / 1000) + "" }), null);
		}
		
		if (!monitor.isCanceled() && getServerState() == IServer.STATE_STOPPED)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorStartFailed, getName()), null);
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "synchronousStart 4");
		}
		return Status.OK_STATUS;
	}

	protected void startImpl2(String mode2, IProgressMonitor monitor) throws CoreException {
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Starting server: " + Server.this.toString() + ", launchMode: " + mode2);
		}
		SaveEditorPrompter editorHelper = (ServerPlugin.isRunningGUIMode()) ? ServerPlugin.getSaveEditorHelper() : null;
		// make sure that the delegate is loaded and the server state is correct
		loadAdapter(ServerBehaviourDelegate.class, monitor);
		
		try {
			ILaunchConfiguration launchConfig = getLaunchConfiguration(true, monitor);
			
			if (editorHelper != null){
				editorHelper.setDebugNeverSave();
			}
			
			if (launchConfig != null){
				launch = launchConfig.launch(mode2, monitor); // , true); - causes workspace lock
			}
			
			if (editorHelper != null){
				editorHelper.setDebugOriginalValue();
			}
			
			if (Trace.FINEST) {
				Trace.trace(Trace.STRING_FINEST, "Launch: " + launch);
			}
		} catch (CoreException e) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error starting server " + Server.this.toString(), e);
			}
			throw e;
		}
	}

	protected IStatus stopImpl(boolean force, IProgressMonitor monitor) {
		final Object mutex = new Object();
		
		// add listener to the server
		IServerListener listener = new IServerListener() {
			public void serverChanged(ServerEvent event) {
				int eventKind = event.getKind();
				IServer server = event.getServer();
				if (eventKind == (ServerEvent.SERVER_CHANGE | ServerEvent.STATE_CHANGE)) {
					int state = server.getServerState();
					if (Server.this == server && (state == IServer.STATE_STOPPED || state == IServer.STATE_STARTED)) {
						// notify waiter
						synchronized (mutex) {
							try {
								mutex.notifyAll();
							} catch (Exception e) {
								if (Trace.SEVERE) {
									Trace.trace(Trace.STRING_SEVERE, "Error notifying server stop", e);
								}
							}
						}
					}
				}
			}
		};
		addServerListener(listener);
		
		class Timer {
			boolean timeout;
			boolean alreadyDone;
		}
		final Timer timer = new Timer();
		
		final int serverTimeout = getStopTimeout() * 1000;
		Thread thread = null;
		if (serverTimeout > 0) {
			thread = new Thread("Server Stop Timeout") {
				public void run() {
					try {
						int totalTimeout = serverTimeout;
						if (totalTimeout < 0)
							totalTimeout = 1;
						
						int retryPeriod = 1000;						
						
						while (totalTimeout > 0 && !timer.alreadyDone){
							Thread.sleep(retryPeriod);
							if (serverTimeout > 0)
								totalTimeout -= retryPeriod;
						}

						if (!timer.alreadyDone) {
							timer.timeout = true;
							// notify waiter
							synchronized (mutex) {
								if (Trace.FINEST) {
									Trace.trace(Trace.STRING_FINEST, "stop notify timeout");
								}
								mutex.notifyAll();
							}
						}
					} catch (Exception e) {
						if (Trace.SEVERE) {
							Trace.trace(Trace.STRING_SEVERE, "Error notifying server stop timeout", e);
						}
					}
				}
			};
		}
		
		// stop the server
		stopImpl2(force);
		
		if (thread != null){
			thread.setDaemon(true);
			thread.start();
		}
		
		// wait for it! wait for it!
		synchronized (mutex) {
			try {
				while (!timer.timeout && getServerState() != IServer.STATE_STOPPED &&
						getServerState() != IServer.STATE_STARTED)
					mutex.wait();
			} catch (Exception e) {
				if (Trace.SEVERE) {
					Trace.trace(Trace.STRING_SEVERE, "Error waiting for server stop", e);
				}
			}
			timer.alreadyDone = true;
		}
		removeServerListener(listener);
		
		//can't throw exceptions
		/*if (timer.timeout)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, Messages.errorStopTimeout, getName()), null);
		else
			timer.alreadyDone = true;
		*/
		if (!monitor.isCanceled() && getServerState() == IServer.STATE_STARTED)
			return new Status(IStatus.ERROR, ServerPlugin.PLUGIN_ID, 0, NLS.bind(Messages.errorStopFailed, getName()), null);
		
		return Status.OK_STATUS;
	}

	protected void stopImpl2(boolean force) {
		if (getServerState() == STATE_STOPPED)
			return;
		
		if (Trace.FINEST) {
			Trace.trace(Trace.STRING_FINEST, "Stopping server: " + Server.this.toString());
		}
		
		try {
			getBehaviourDelegate(null).stop(force);
		} catch (RuntimeException e) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error calling delegate stop() " + Server.this.toString(), e);
			}
			throw e;
		} catch (Throwable t) {
			if (Trace.SEVERE) {
				Trace.trace(Trace.STRING_SEVERE, "Error calling delegate stop() " + Server.this.toString(), t);
			}
			throw new RuntimeException(t);
		}
	}

	public boolean contains(ISchedulingRule rule) {
		return (rule instanceof IServer || rule instanceof ServerSchedulingRule);
	}

	public boolean isConflicting(ISchedulingRule rule) {
		if (!(rule instanceof IServer) && !(rule instanceof ServerSchedulingRule))
			return false;
		
		if (rule instanceof IServer) {
			IServer s = (IServer) rule;
			return this.equals(s);
		}
		ServerSchedulingRule ssrule = (ServerSchedulingRule) rule;
		return ssrule.server.equals(this);
	}

	public String toString() {
		return getName();
	}
	
	private String getPublishKindString(int kind){
		if (kind == IServer.PUBLISH_AUTO){
			return PUBLISH_AUTO_STRING;
		}
		else if (kind == IServer.PUBLISH_CLEAN){
			return PUBLISH_CLEAN_STRING;
		}
		else if (kind == IServer.PUBLISH_FULL){
			return PUBLISH_FULL_STRING;
		}
		else if (kind == IServer.PUBLISH_INCREMENTAL){
			return PUBLISH_INCREMENTAL_STRING;
		}
		return PUBLISH_UNKOWN;
	}
}