plugins/org.eclipse.jst.j2ee.ui/j2ee_ui/org/eclipse/jst/j2ee/internal/provider/J2EEUtilityJarItemProvider.java - gerrit/jeetools/webtools.javaee - Git at Google

 /*******************************************************************************
  * Copyright (c) 2003, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jst.j2ee.internal.provider;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceChangeEvent;
 import org.eclipse.core.resources.IResourceChangeListener;
 import org.eclipse.core.resources.IResourceDelta;
 import org.eclipse.core.resources.IResourceDeltaVisitor;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.edit.provider.ItemProvider;
 import org.eclipse.emf.edit.provider.ItemProviderAdapter;
 import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
 import org.eclipse.jem.util.emf.workbench.WorkbenchResourceHelperBase;
 import org.eclipse.jst.j2ee.application.Application;
 import org.eclipse.jst.j2ee.componentcore.util.EARArtifactEdit;
 import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
 import org.eclipse.jst.j2ee.internal.plugin.J2EEUIMessages;
 import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities;
 import org.eclipse.wst.common.componentcore.internal.resources.VirtualArchiveComponent;
 import org.eclipse.wst.common.componentcore.internal.util.ComponentUtilities;
 import org.eclipse.wst.common.componentcore.internal.util.IModuleConstants;
 import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
 import org.eclipse.wst.common.componentcore.resources.IVirtualReference;

 /**
  * @author jsholl
  *
  * To change this generated comment edit the template variable "typecomment":
  * Window>Preferences>Java>Templates. To enable and disable the creation of type comments go to
  * Window>Preferences>Java>Code Generation.
  */
 public class J2EEUtilityJarItemProvider extends J2EEItemProvider {

 	public final static String UTILITY_JARS = J2EEUIMessages.getResourceString("Utility_JARs_UI_"); //$NON-NLS-1$

 	private boolean childrenLoaded = false;
 	private Application application = null;

 	/**
 	 * Constructor for J2EEUtilityJarItemProvider.
 	 */
 	public J2EEUtilityJarItemProvider(Application app, AdapterFactory adapterFactory, Object parent) {
 		super(adapterFactory);
 		setParent(parent);
 		application = app;
 		UtilityJarResourceChangeListener.INSTANCE.addUtilityJarItemProvider(ProjectUtilities.getProject(application), this);
 	}

 	public boolean hasChildren(Object object) {
 		getChildren(object);
 		return !children.isEmpty();
 	}

 	public Collection getChildren(final Object object) {
 		if (!childrenLoaded) {
 			try {
 				disableNotification();
 				org.eclipse.swt.custom.BusyIndicator.showWhile(null, new Runnable() {
 					public void run() {
 						computeChildren();
 					}
 				});
 			} finally {
 				enableNotification();
 			}
 		}
 		return children;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProvider#dispose()
 	 */
 	public void dispose() {
 		super.dispose();
 		UtilityJarResourceChangeListener.INSTANCE.removeUtilityJarItemProvider(ProjectUtilities.getProject(application), this);

 	}

 	/**
 	 * @see ItemProvider#getChildren(Object)
 	 */
 	private void computeChildren() {
 		childrenLoaded = true;
 		IVirtualComponent ear = ComponentUtilities.findComponent(application);
 		if (ear != null) {
 			EARArtifactEdit earEdit = null;
 			try {
 				earEdit = EARArtifactEdit.getEARArtifactEditForRead(ear);
 				IVirtualReference[] modules = earEdit.getUtilityModuleReferences();
 				for (int i = 0; i < modules.length; i++) {
 					IVirtualComponent module = modules[i].getReferencedComponent();
 					if (module.isBinary()) {
 						VirtualArchiveComponent virtualArchiveComponent = (VirtualArchiveComponent) module;
 						java.io.File diskFile = virtualArchiveComponent.getUnderlyingDiskFile();
 						if (diskFile.exists())
 							children.add(diskFile);
 						else {
 							// we will assume the component name is in synch with the module uri
 							IFile utilityJar = virtualArchiveComponent.getUnderlyingWorkbenchFile();
 							if (utilityJar != null)
 								children.add(utilityJar);
 						}
 					} else {

 					}
 					if (module.getProject() == null || !module.getProject().isAccessible())
 						continue;
 					// return only jars for utility components
 					if (J2EEProjectUtilities.isUtilityProject(module.getProject())) {
 						IProject project = ProjectUtilities.getProject(application);
 						if (project == null)
 							continue;
 						// we will assume the component name is in synch with the module uri
 						IFile utilityJar = project.getFile(module.getName() + ".jar"); //$NON-NLS-1$
 						if (utilityJar != null)
 							children.add(utilityJar);
 					}
 				}
 			} finally {
 				if (earEdit != null) {
 					earEdit.dispose();
 				}
 			}
 		}
 	}

 	// private Collection getJars(List list, IResource[] members) {
 	// for (int i = 0; i < members.length; i++) {
 	// if (isJarFile(members[i])) {
 	// list.add(members[i]);
 	// } else if (members[i].getType() == IResource.FOLDER) {
 	// try {
 	// getJars(list, ((IFolder) members[i]).members());
 	// } catch (CoreException e) {
 	// Logger.getLogger().logError(e);
 	// }
 	// }
 	// }
 	// return list;
 	// }

 	public static boolean isJarFile(IResource member) {
 		return member.getType() == IResource.FILE && member.getName().toLowerCase().endsWith(".jar"); //$NON-NLS-1$
 	}

 	public static boolean isComponentFile(IResource member) {
 		return member.getType() == IResource.FILE && member.getName().toLowerCase().endsWith(IModuleConstants.COMPONENT_FILE_NAME);
 	}


 	/**
 	 * @see ItemProviderAdapter#getImage(Object)
 	 */
 	public Object getImage(Object object) {
 		return J2EEPlugin.getPlugin().getImage("folder"); //$NON-NLS-1$
 	}

 	/**
 	 * @see ItemProviderAdapter#getText(Object)
 	 */
 	public String getText(Object object) {
 		return UTILITY_JARS;
 	}

 	// assume this resource is a jar resource
 	public void utilityJarChanged(IResource resource, IResourceDelta delta) {
 		if (childrenLoaded) {
 			if (delta.getKind() == IResourceDelta.ADDED && !children.contains(resource)) {
 				children.add(resource);
 			} else if (delta.getKind() == IResourceDelta.REMOVED && children.contains(resource)) {
 				children.remove(resource);
 			}
 		}
 	}

 	protected static class UtilityJarResourceChangeListener implements IResourceChangeListener, IResourceDeltaVisitor {

 		protected static final UtilityJarResourceChangeListener INSTANCE = new UtilityJarResourceChangeListener();

 		private boolean listening = false;
 		private Map earProjectsToUtilityJarProviderMap;

 		public void addUtilityJarItemProvider(IProject project, J2EEUtilityJarItemProvider utilityJarItemProvider) {
 			List providers = getProviders(project);
 			if (providers != null)
 				providers.add(utilityJarItemProvider);
 			if (!listening) {
 				ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE);
 				listening = true;
 			}
 		}

 		/**
 		 * @param project
 		 * @return
 		 */
 		private List getProviders(IProject project) {
 			List result = (List) getEarProjectsToUtilityJarProviderMap().get(project);
 			if (result == null && project != null)
 				getEarProjectsToUtilityJarProviderMap().put(project, (result = new ArrayList()));
 			return result;
 		}

 		/**
 		 * @return
 		 */
 		private Map getEarProjectsToUtilityJarProviderMap() {
 			if (earProjectsToUtilityJarProviderMap == null)
 				earProjectsToUtilityJarProviderMap = new HashMap();
 			return earProjectsToUtilityJarProviderMap;
 		}

 		public void removeUtilityJarItemProvider(IProject project, J2EEUtilityJarItemProvider utilityJarItemProvider) {
 			List providers = getProviders(project);
 			providers.remove(utilityJarItemProvider);
 			if (providers.isEmpty())
 				getEarProjectsToUtilityJarProviderMap().remove(project);

 			if (getEarProjectsToUtilityJarProviderMap().isEmpty()) {
 				ResourcesPlugin.getWorkspace().removeResourceChangeListener(this);
 				listening = false;
 			}
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent)
 		 */
 		public void resourceChanged(IResourceChangeEvent event) {
 			try {
 				event.getDelta().accept(this);
 			} catch (CoreException e) {
 				e.printStackTrace();
 			}
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
 		 */
 		public boolean visit(IResourceDelta delta) {
 			switch (delta.getResource().getType()) {
 				case IResource.ROOT :
 				case IResource.FOLDER :
 					return true;

 				case IResource.PROJECT :
 					return getEarProjectsToUtilityJarProviderMap().containsKey(delta.getResource());
 				case IResource.FILE : {
 					IResource resource = delta.getResource();
 					if (isComponentFile(resource)) {
 						List utilityJarItemProviders = getProviders(resource.getProject());
 						for (int i = 0; i < utilityJarItemProviders.size(); i++) {
 							((J2EEUtilityJarItemProvider) utilityJarItemProviders.get(i)).getChildren().clear();
 							((J2EEUtilityJarItemProvider) utilityJarItemProviders.get(i)).computeChildren();
 						}
 					}
 					return false;
 				}

 			}
 			return false;
 		}
 	}

 	public IFile getAssociatedFile() {

 		try {
 			if (application != null && application.eResource() != null) {
 				return WorkbenchResourceHelperBase.getIFile(application.eResource().getURI());
 			}
 		} catch (Throwable t) {

 		}
 		return null;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2003, 2005 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jst.j2ee.internal.provider;

	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IResourceChangeEvent;
	import org.eclipse.core.resources.IResourceChangeListener;
	import org.eclipse.core.resources.IResourceDelta;
	import org.eclipse.core.resources.IResourceDeltaVisitor;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.edit.provider.ItemProvider;
	import org.eclipse.emf.edit.provider.ItemProviderAdapter;
	import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
	import org.eclipse.jem.util.emf.workbench.WorkbenchResourceHelperBase;
	import org.eclipse.jst.j2ee.application.Application;
	import org.eclipse.jst.j2ee.componentcore.util.EARArtifactEdit;
	import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
	import org.eclipse.jst.j2ee.internal.plugin.J2EEUIMessages;
	import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities;
	import org.eclipse.wst.common.componentcore.internal.resources.VirtualArchiveComponent;
	import org.eclipse.wst.common.componentcore.internal.util.ComponentUtilities;
	import org.eclipse.wst.common.componentcore.internal.util.IModuleConstants;
	import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
	import org.eclipse.wst.common.componentcore.resources.IVirtualReference;

	/**
	* @author jsholl
	*
	* To change this generated comment edit the template variable "typecomment":
	* Window>Preferences>Java>Templates. To enable and disable the creation of type comments go to
	* Window>Preferences>Java>Code Generation.
	*/
	public class J2EEUtilityJarItemProvider extends J2EEItemProvider {

	public final static String UTILITY_JARS = J2EEUIMessages.getResourceString("Utility_JARs_UI_"); //$NON-NLS-1$

	private boolean childrenLoaded = false;
	private Application application = null;

	/**
	* Constructor for J2EEUtilityJarItemProvider.
	*/
	public J2EEUtilityJarItemProvider(Application app, AdapterFactory adapterFactory, Object parent) {
	super(adapterFactory);
	setParent(parent);
	application = app;
	UtilityJarResourceChangeListener.INSTANCE.addUtilityJarItemProvider(ProjectUtilities.getProject(application), this);
	}

	public boolean hasChildren(Object object) {
	getChildren(object);
	return !children.isEmpty();
	}

	public Collection getChildren(final Object object) {
	if (!childrenLoaded) {
	try {
	disableNotification();
	org.eclipse.swt.custom.BusyIndicator.showWhile(null, new Runnable() {
	public void run() {
	computeChildren();
	}
	});
	} finally {
	enableNotification();
	}
	}
	return children;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProvider#dispose()
	*/
	public void dispose() {
	super.dispose();
	UtilityJarResourceChangeListener.INSTANCE.removeUtilityJarItemProvider(ProjectUtilities.getProject(application), this);

	}

	/**
	* @see ItemProvider#getChildren(Object)
	*/
	private void computeChildren() {
	childrenLoaded = true;
	IVirtualComponent ear = ComponentUtilities.findComponent(application);
	if (ear != null) {
	EARArtifactEdit earEdit = null;
	try {
	earEdit = EARArtifactEdit.getEARArtifactEditForRead(ear);
	IVirtualReference[] modules = earEdit.getUtilityModuleReferences();
	for (int i = 0; i < modules.length; i++) {
	IVirtualComponent module = modules[i].getReferencedComponent();
	if (module.isBinary()) {
	VirtualArchiveComponent virtualArchiveComponent = (VirtualArchiveComponent) module;
	java.io.File diskFile = virtualArchiveComponent.getUnderlyingDiskFile();
	if (diskFile.exists())
	children.add(diskFile);
	else {
	// we will assume the component name is in synch with the module uri
	IFile utilityJar = virtualArchiveComponent.getUnderlyingWorkbenchFile();
	if (utilityJar != null)
	children.add(utilityJar);
	}
	} else {

	}
	if (module.getProject() == null \|\| !module.getProject().isAccessible())
	continue;
	// return only jars for utility components
	if (J2EEProjectUtilities.isUtilityProject(module.getProject())) {
	IProject project = ProjectUtilities.getProject(application);
	if (project == null)
	continue;
	// we will assume the component name is in synch with the module uri
	IFile utilityJar = project.getFile(module.getName() + ".jar"); //$NON-NLS-1$
	if (utilityJar != null)
	children.add(utilityJar);
	}
	}
	} finally {
	if (earEdit != null) {
	earEdit.dispose();
	}
	}
	}
	}

	// private Collection getJars(List list, IResource[] members) {
	// for (int i = 0; i < members.length; i++) {
	// if (isJarFile(members[i])) {
	// list.add(members[i]);
	// } else if (members[i].getType() == IResource.FOLDER) {
	// try {
	// getJars(list, ((IFolder) members[i]).members());
	// } catch (CoreException e) {
	// Logger.getLogger().logError(e);
	// }
	// }
	// }
	// return list;
	// }

	public static boolean isJarFile(IResource member) {
	return member.getType() == IResource.FILE && member.getName().toLowerCase().endsWith(".jar"); //$NON-NLS-1$
	}

	public static boolean isComponentFile(IResource member) {
	return member.getType() == IResource.FILE && member.getName().toLowerCase().endsWith(IModuleConstants.COMPONENT_FILE_NAME);
	}


	/**
	* @see ItemProviderAdapter#getImage(Object)
	*/
	public Object getImage(Object object) {
	return J2EEPlugin.getPlugin().getImage("folder"); //$NON-NLS-1$
	}

	/**
	* @see ItemProviderAdapter#getText(Object)
	*/
	public String getText(Object object) {
	return UTILITY_JARS;
	}

	// assume this resource is a jar resource
	public void utilityJarChanged(IResource resource, IResourceDelta delta) {
	if (childrenLoaded) {
	if (delta.getKind() == IResourceDelta.ADDED && !children.contains(resource)) {
	children.add(resource);
	} else if (delta.getKind() == IResourceDelta.REMOVED && children.contains(resource)) {
	children.remove(resource);
	}
	}
	}

	protected static class UtilityJarResourceChangeListener implements IResourceChangeListener, IResourceDeltaVisitor {

	protected static final UtilityJarResourceChangeListener INSTANCE = new UtilityJarResourceChangeListener();

	private boolean listening = false;
	private Map earProjectsToUtilityJarProviderMap;

	public void addUtilityJarItemProvider(IProject project, J2EEUtilityJarItemProvider utilityJarItemProvider) {
	List providers = getProviders(project);
	if (providers != null)
	providers.add(utilityJarItemProvider);
	if (!listening) {
	ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE);
	listening = true;
	}
	}

	/**
	* @param project
	* @return
	*/
	private List getProviders(IProject project) {
	List result = (List) getEarProjectsToUtilityJarProviderMap().get(project);
	if (result == null && project != null)
	getEarProjectsToUtilityJarProviderMap().put(project, (result = new ArrayList()));
	return result;
	}

	/**
	* @return
	*/
	private Map getEarProjectsToUtilityJarProviderMap() {
	if (earProjectsToUtilityJarProviderMap == null)
	earProjectsToUtilityJarProviderMap = new HashMap();
	return earProjectsToUtilityJarProviderMap;
	}

	public void removeUtilityJarItemProvider(IProject project, J2EEUtilityJarItemProvider utilityJarItemProvider) {
	List providers = getProviders(project);
	providers.remove(utilityJarItemProvider);
	if (providers.isEmpty())
	getEarProjectsToUtilityJarProviderMap().remove(project);

	if (getEarProjectsToUtilityJarProviderMap().isEmpty()) {
	ResourcesPlugin.getWorkspace().removeResourceChangeListener(this);
	listening = false;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent)
	*/
	public void resourceChanged(IResourceChangeEvent event) {
	try {
	event.getDelta().accept(this);
	} catch (CoreException e) {
	e.printStackTrace();
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
	*/
	public boolean visit(IResourceDelta delta) {
	switch (delta.getResource().getType()) {
	case IResource.ROOT :
	case IResource.FOLDER :
	return true;

	case IResource.PROJECT :
	return getEarProjectsToUtilityJarProviderMap().containsKey(delta.getResource());
	case IResource.FILE : {
	IResource resource = delta.getResource();
	if (isComponentFile(resource)) {
	List utilityJarItemProviders = getProviders(resource.getProject());
	for (int i = 0; i < utilityJarItemProviders.size(); i++) {
	((J2EEUtilityJarItemProvider) utilityJarItemProviders.get(i)).getChildren().clear();
	((J2EEUtilityJarItemProvider) utilityJarItemProviders.get(i)).computeChildren();
	}
	}
	return false;
	}

	}
	return false;
	}
	}

	public IFile getAssociatedFile() {

	try {
	if (application != null && application.eResource() != null) {
	return WorkbenchResourceHelperBase.getIFile(application.eResource().getURI());
	}
	} catch (Throwable t) {

	}
	return null;
	}

	}