plugins/org.eclipse.wst.server.ui/serverui/org/eclipse/wst/server/ui/internal/wizard/page/ModifyModulesComposite.java - servertools/webtools.servertools - 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.wst.server.ui.internal.wizard.page;

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

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IMessageProvider;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Tree;
 import org.eclipse.swt.widgets.TreeItem;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.wst.server.core.*;
 import org.eclipse.wst.server.ui.ServerUICore;
 import org.eclipse.wst.server.ui.internal.*;
 import org.eclipse.wst.server.ui.wizard.IWizardHandle;
 /**
  * A wizard page used to add and remove modules.
  */
 public class ModifyModulesComposite extends Composite {
 	protected static final ILabelProvider slp = ServerUICore.getLabelProvider();

 	protected IWizardHandle wizard;

 	protected IServerAttributes server;

 	protected Map childModuleMap = new HashMap();
 	protected Map parentTreeItemMap = new HashMap();

 	// original modules on the server
 	protected List originalModules = new ArrayList();

 	// modules available to be added to the server
 	protected List modules = new ArrayList();

 	// current modules on the server
 	protected List deployed = new ArrayList();

 	protected Tree availableTree;
 	protected Tree deployedTree;

 	protected Button add, addAll;
 	protected Button remove, removeAll;

 	protected TaskModel taskModel;
 	protected IModule newModule;
 	protected IModule origNewModule;

 	protected Map errorMap;

 	/**
 	 * Create a new ModifyModulesComposite.
 	 */
 	public ModifyModulesComposite(Composite parent, IWizardHandle wizard, IModule module) {
 		super(parent, SWT.NONE);
 		this.wizard = wizard;
 		origNewModule = module;

 		wizard.setTitle(ServerUIPlugin.getResource("%wizModuleTitle"));
 		wizard.setDescription(ServerUIPlugin.getResource("%wizModuleDescription"));
 		wizard.setImageDescriptor(ImageResource.getImageDescriptor(ImageResource.IMG_WIZBAN_SELECT_SERVER));

 		createControl();
 	}

 	public void setServer(IServerAttributes server) {
 		if (server == this.server)
 			return;

 		this.server = server;
 		originalModules = new ArrayList();
 		deployed = new ArrayList();
 		modules = new ArrayList();

 		childModuleMap = new HashMap();

 		if (server == null)
 			return;

 		// get currently deployed modules
 		IModule[] currentModules = server.getModules();
 		if (currentModules != null) {
 			int size = currentModules.length;
 			for (int i = 0; i < size; i++) {
 				originalModules.add(currentModules[i]);
 				deployed.add(currentModules[i]);
 			}
 		}

 		// add new module
 		newModule = null;
 		if (origNewModule != null) {
 			try {
 				IModule[] parents = server.getRootModules(origNewModule, null);
 				if (parents != null && parents.length > 0)
 					newModule = parents[0];
 				else
 					newModule = origNewModule;
 			} catch (Exception e) {
 				Trace.trace(Trace.WARNING, "Could not find parent module", e);
 				newModule = null;
 			}
 		}
 		if (newModule != null && !deployed.contains(newModule))
 			deployed.add(newModule);

 		// get remaining modules
 		errorMap = new HashMap();
 		IModule[] modules2 = ServerUtil.getModules(server.getServerType().getRuntimeType().getModuleTypes());
 		if (modules2 != null) {
 			int size = modules2.length;
 			for (int i = 0; i < size; i++) {
 				IModule module = modules2[i];
 				if (!deployed.contains(module)) {
 					try {
 						IModule[] parents = server.getRootModules(module, null);
 						if (parents != null) {
 							int size2 = parents.length;
 							for (int j = 0; j < size2; j++) {
 								if (parents[j].equals(module)) {
 									IStatus status = server.canModifyModules(new IModule[] { module }, null, null);
 									if (status != null && !status.isOK())
 										errorMap.put(module, status);
 									modules.add(module);
 								}
 							}
 						}
 					} catch (CoreException ce) {
 						errorMap.put(module, ce.getStatus());
 						modules.add(module);
 					}
 				}
 			}
 		}

 		// build child map
 		Iterator iterator = deployed.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			try {
 				IModule[] children = server.getChildModules(new IModule[] { module }, null);
 				childModuleMap.put(module, children);
 			} catch (Exception e) {
 				// ignore
 			}
 		}

 		iterator = modules.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			try {
 				IModule[] children = server.getChildModules(new IModule[] { module }, null);
 				childModuleMap.put(module, children);
 			} catch (Exception e) {
 				// ignore
 			}
 		}

 		if (availableTree != null)
 			Display.getDefault().syncExec(new Runnable() {
 				public void run() {
 					try { // update trees if we can
 						parentTreeItemMap = new HashMap();
 						fillTree(availableTree, modules);
 						fillTree(deployedTree, deployed);
 						setEnablement();
 					} catch (Exception e) {
 						// ignore
 					}
 				}
 			});
 		updateTaskModel();
 	}

 	public void setTaskModel(TaskModel model) {
 		this.taskModel = model;
 	}

 	/**
 	 * Creates the UI of the page.
 	 */
 	protected void createControl() {
 		GridLayout layout = new GridLayout();
 		layout.horizontalSpacing = SWTUtil.convertHorizontalDLUsToPixels(this, 4);
 		layout.verticalSpacing = SWTUtil.convertVerticalDLUsToPixels(this, 4);
 		layout.marginWidth = 0;
 		layout.marginHeight = 0;
 		layout.numColumns = 3;
 		setLayout(layout);
 		setFont(getParent().getFont());
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, ContextIds.MODIFY_MODULES_COMPOSITE);

 		Label label = new Label(this, SWT.NONE);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
 		data.horizontalSpan = 3;
 		label.setLayoutData(data);
 		label.setText(ServerUIPlugin.getResource("%wizModuleMessage"));

 		label = new Label(this, SWT.NONE);
 		label.setText(ServerUIPlugin.getResource("%wizModuleAvailableList"));

 		label = new Label(this, SWT.NONE);
 		label.setText("");

 		label = new Label(this, SWT.NONE);
 		label.setText(ServerUIPlugin.getResource("%wizModuleDeployedList"));

 		availableTree = new Tree(this, SWT.BORDER);
 		data = new GridData(GridData.FILL_BOTH);
 		data.heightHint = 200;
 		data.widthHint = 150;
 		availableTree.setLayoutData(data);
 		availableTree.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				setEnablement();
 			}
 		});

 		// slosh buttons
 		Composite comp = new Composite(this, SWT.NONE);
 		data = new GridData(GridData.FILL_BOTH);
 		data.widthHint = 120;
 		comp.setLayoutData(data);

 		layout = new GridLayout();
 		layout.marginWidth = 5;
 		layout.marginHeight = 25;
 		layout.verticalSpacing = 20;
 		comp.setLayout(layout);

 		add = new Button(comp, SWT.PUSH);
 		add.setText(ServerUIPlugin.getResource("%wizModuleAdd"));
 		add.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		add.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				add(false);
 			}
 		});

 		remove = new Button(comp, SWT.PUSH);
 		remove.setText(ServerUIPlugin.getResource("%wizModuleRemove"));
 		remove.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		remove.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				remove(false);
 			}
 		});

 		label = new Label(comp, SWT.NONE);
 		label.setText("");

 		addAll = new Button(comp, SWT.PUSH);
 		addAll.setText(ServerUIPlugin.getResource("%wizModuleAddAll"));
 		addAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		addAll.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				add(true);
 			}
 		});

 		removeAll = new Button(comp, SWT.PUSH);
 		removeAll.setText(ServerUIPlugin.getResource("%wizModuleRemoveAll"));
 		removeAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		removeAll.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				remove(true);
 			}
 		});

 		deployedTree = new Tree(this, SWT.BORDER);
 		data = new GridData(GridData.FILL_BOTH);
 		data.widthHint = 150;
 		deployedTree.setLayoutData(data);
 		deployedTree.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				setEnablement();
 			}
 		});

 		parentTreeItemMap = new HashMap();
 		fillTree(availableTree, modules);
 		fillTree(deployedTree, deployed);

 		setEnablement();

 		availableTree.setFocus();

 		Dialog.applyDialogFont(this);
 	}

 	protected void setEnablement() {
 		boolean enabled = false;
 		wizard.setMessage(null, IMessageProvider.NONE);
 		if (availableTree.getItemCount() > 0) {
 			try {
 				TreeItem item = availableTree.getSelection()[0];
 				item = (TreeItem) parentTreeItemMap.get(item);
 				IModule module = (IModule) item.getData();

 				IStatus status = (IStatus) errorMap.get(module);
 				if (modules.contains(module)) {
 					if (status == null)
 						enabled = true;
 					else if (status.getSeverity() == IStatus.ERROR)
 						wizard.setMessage(status.getMessage(), IMessageProvider.ERROR);
 					else if (status.getSeverity() == IStatus.WARNING)
 						wizard.setMessage(status.getMessage(), IMessageProvider.WARNING);
 					else if (status.getSeverity() == IStatus.INFO)
 						wizard.setMessage(status.getMessage(), IMessageProvider.INFORMATION);
 				}
 			} catch (Exception e) {
 				// ignore
 			}
 		}
 		add.setEnabled(enabled);
 		addAll.setEnabled(availableTree.getItemCount() > 0);

 		enabled = false;
 		if (deployedTree.getItemCount() > 0) {
 			try {
 				TreeItem item = deployedTree.getSelection()[0];
 				item = (TreeItem) parentTreeItemMap.get(item);
 				IModule module = (IModule) item.getData();
 				if (deployed.contains(module) && !module.equals(newModule))
 					enabled = true;
 			} catch (Exception e) {
 				// ignore
 			}
 		}
 		remove.setEnabled(enabled);
 		if (newModule == null)
 			removeAll.setEnabled(deployedTree.getItemCount() > 0);
 		else
 			removeAll.setEnabled(deployedTree.getItemCount() > 1);
 	}

 	protected void addChildren(TreeItem item, IModule[] module) {
 		try {
 			IModule[] children = (IModule[]) childModuleMap.get(module);
 			if (children != null) {
 				int size = children.length;
 				for (int i = 0; i < size; i++) {
 					IModule child = children[i];
 					TreeItem childItem = new TreeItem(item, SWT.NONE);
 					childItem.setText(slp.getText(child));
 					childItem.setImage(slp.getImage(child));
 					childItem.setData(child);
 					parentTreeItemMap.put(childItem, item);

 					int size2 = module.length;
 					IModule[] module2 = new IModule[size2 + 1];
 					System.arraycopy(module, 0, module2, 0, size2);
 					module2[size2] = child;
 					addChildren(childItem, module2);
 				}
 			}
 		} catch (Exception e) {
 			// ignore
 		}
 	}

 	protected void fillTree(Tree tree, List modules2) {
 		tree.removeAll();

 		Iterator iterator = modules2.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			TreeItem item = new TreeItem(tree, SWT.NONE);
 			item.setText(slp.getText(module));
 			item.setImage(slp.getImage(module));
 			item.setData(module);
 			parentTreeItemMap.put(item, item);
 			addChildren(item, new IModule[] { module });
 		}
 	}

 	protected void add(boolean all) {
 		if (all)
 			moveAll(availableTree.getItems(), true);
 		else
 			moveAll(availableTree.getSelection(), true);
 		updateTaskModel();
 	}

 	protected void remove(boolean all) {
 		if (all)
 			moveAll(deployedTree.getItems(), false);
 		else
 			moveAll(deployedTree.getSelection(), false);
 		updateTaskModel();
 	}

 	protected void moveAll(TreeItem[] items, boolean add2) {
 		int size = items.length;
 		List list = new ArrayList();
 		for (int i = 0; i < size; i++) {
 			TreeItem item = (TreeItem) parentTreeItemMap.get(items[i]);
 			IModule module = (IModule) item.getData();

 			if (!list.contains(module))
 				list.add(module);
 		}

 		Iterator iterator = list.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			if (add2) {
 				modules.remove(module);
 				deployed.add(module);
 			} else if (!module.equals(newModule)) {
 				modules.add(module);
 				deployed.remove(module);
 			}
 		}

 		parentTreeItemMap = new HashMap();
 		fillTree(availableTree, modules);
 		fillTree(deployedTree, deployed);

 		setEnablement();
 	}

 	protected void updateTaskModel() {
 		if (taskModel == null)
 			return;

 		taskModel.putObject(TaskModel.TASK_MODULES, getModuleMap());
 		wizard.update();
 	}

 	/**
 	 * Return true if this page is complete.
 	 * @return boolean
 	 */
 	public boolean isPageComplete() {
 		return true;
 	}

 	public List getModulesToRemove() {
 		List list = new ArrayList();
 		Iterator iterator = originalModules.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			if (!deployed.contains(module))
 				list.add(module);
 		}
 		return list;
 	}

 	public List getModulesToAdd() {
 		List list = new ArrayList();
 		Iterator iterator = deployed.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			if (!originalModules.contains(module))
 				list.add(module);
 		}
 		return list;
 	}

 	private void addChildMap(List map, IModule[] parents, IModule[] children) {
 		if (children == null)
 			return;

 		int size = children.length;
 		for (int i = 0; i < size; i++) {
 			IModule module = children[i];

 			int size2 = parents.length;
 			IModule[] modules2 = new IModule[size2 + 1];
 			System.arraycopy(parents, 0, modules2, 0, size2);
 			modules2[size2] = module;
 			map.add(modules2);

 			IModule[] children2 = (IModule[]) childModuleMap.get(module);
 			if (children2 != null)
 				addChildMap(map, modules2, children2);
 		}
 	}

 	public List getModuleMap() {
 		final List map = new ArrayList();

 		Iterator iterator = deployed.iterator();
 		while (iterator.hasNext()) {
 			IModule module = (IModule) iterator.next();
 			IModule[] moduleTree = new IModule[] { module };
 			map.add(moduleTree);
 			IModule[] children = (IModule[]) childModuleMap.get(module);
 			if (children != null)
 				addChildMap(map, moduleTree, children);
 		}

 		return map;
 	}
 }
	/*******************************************************************************
	* 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.wst.server.ui.internal.wizard.page;

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

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IMessageProvider;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Tree;
	import org.eclipse.swt.widgets.TreeItem;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.wst.server.core.*;
	import org.eclipse.wst.server.ui.ServerUICore;
	import org.eclipse.wst.server.ui.internal.*;
	import org.eclipse.wst.server.ui.wizard.IWizardHandle;
	/**
	* A wizard page used to add and remove modules.
	*/
	public class ModifyModulesComposite extends Composite {
	protected static final ILabelProvider slp = ServerUICore.getLabelProvider();

	protected IWizardHandle wizard;

	protected IServerAttributes server;

	protected Map childModuleMap = new HashMap();
	protected Map parentTreeItemMap = new HashMap();

	// original modules on the server
	protected List originalModules = new ArrayList();

	// modules available to be added to the server
	protected List modules = new ArrayList();

	// current modules on the server
	protected List deployed = new ArrayList();

	protected Tree availableTree;
	protected Tree deployedTree;

	protected Button add, addAll;
	protected Button remove, removeAll;

	protected TaskModel taskModel;
	protected IModule newModule;
	protected IModule origNewModule;

	protected Map errorMap;

	/**
	* Create a new ModifyModulesComposite.
	*/
	public ModifyModulesComposite(Composite parent, IWizardHandle wizard, IModule module) {
	super(parent, SWT.NONE);
	this.wizard = wizard;
	origNewModule = module;

	wizard.setTitle(ServerUIPlugin.getResource("%wizModuleTitle"));
	wizard.setDescription(ServerUIPlugin.getResource("%wizModuleDescription"));
	wizard.setImageDescriptor(ImageResource.getImageDescriptor(ImageResource.IMG_WIZBAN_SELECT_SERVER));

	createControl();
	}

	public void setServer(IServerAttributes server) {
	if (server == this.server)
	return;

	this.server = server;
	originalModules = new ArrayList();
	deployed = new ArrayList();
	modules = new ArrayList();

	childModuleMap = new HashMap();

	if (server == null)
	return;

	// get currently deployed modules
	IModule[] currentModules = server.getModules();
	if (currentModules != null) {
	int size = currentModules.length;
	for (int i = 0; i < size; i++) {
	originalModules.add(currentModules[i]);
	deployed.add(currentModules[i]);
	}
	}

	// add new module
	newModule = null;
	if (origNewModule != null) {
	try {
	IModule[] parents = server.getRootModules(origNewModule, null);
	if (parents != null && parents.length > 0)
	newModule = parents[0];
	else
	newModule = origNewModule;
	} catch (Exception e) {
	Trace.trace(Trace.WARNING, "Could not find parent module", e);
	newModule = null;
	}
	}
	if (newModule != null && !deployed.contains(newModule))
	deployed.add(newModule);

	// get remaining modules
	errorMap = new HashMap();
	IModule[] modules2 = ServerUtil.getModules(server.getServerType().getRuntimeType().getModuleTypes());
	if (modules2 != null) {
	int size = modules2.length;
	for (int i = 0; i < size; i++) {
	IModule module = modules2[i];
	if (!deployed.contains(module)) {
	try {
	IModule[] parents = server.getRootModules(module, null);
	if (parents != null) {
	int size2 = parents.length;
	for (int j = 0; j < size2; j++) {
	if (parents[j].equals(module)) {
	IStatus status = server.canModifyModules(new IModule[] { module }, null, null);
	if (status != null && !status.isOK())
	errorMap.put(module, status);
	modules.add(module);
	}
	}
	}
	} catch (CoreException ce) {
	errorMap.put(module, ce.getStatus());
	modules.add(module);
	}
	}
	}
	}

	// build child map
	Iterator iterator = deployed.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	try {
	IModule[] children = server.getChildModules(new IModule[] { module }, null);
	childModuleMap.put(module, children);
	} catch (Exception e) {
	// ignore
	}
	}

	iterator = modules.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	try {
	IModule[] children = server.getChildModules(new IModule[] { module }, null);
	childModuleMap.put(module, children);
	} catch (Exception e) {
	// ignore
	}
	}

	if (availableTree != null)
	Display.getDefault().syncExec(new Runnable() {
	public void run() {
	try { // update trees if we can
	parentTreeItemMap = new HashMap();
	fillTree(availableTree, modules);
	fillTree(deployedTree, deployed);
	setEnablement();
	} catch (Exception e) {
	// ignore
	}
	}
	});
	updateTaskModel();
	}

	public void setTaskModel(TaskModel model) {
	this.taskModel = model;
	}

	/**
	* Creates the UI of the page.
	*/
	protected void createControl() {
	GridLayout layout = new GridLayout();
	layout.horizontalSpacing = SWTUtil.convertHorizontalDLUsToPixels(this, 4);
	layout.verticalSpacing = SWTUtil.convertVerticalDLUsToPixels(this, 4);
	layout.marginWidth = 0;
	layout.marginHeight = 0;
	layout.numColumns = 3;
	setLayout(layout);
	setFont(getParent().getFont());
	PlatformUI.getWorkbench().getHelpSystem().setHelp(this, ContextIds.MODIFY_MODULES_COMPOSITE);

	Label label = new Label(this, SWT.NONE);
	GridData data = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING);
	data.horizontalSpan = 3;
	label.setLayoutData(data);
	label.setText(ServerUIPlugin.getResource("%wizModuleMessage"));

	label = new Label(this, SWT.NONE);
	label.setText(ServerUIPlugin.getResource("%wizModuleAvailableList"));

	label = new Label(this, SWT.NONE);
	label.setText("");

	label = new Label(this, SWT.NONE);
	label.setText(ServerUIPlugin.getResource("%wizModuleDeployedList"));

	availableTree = new Tree(this, SWT.BORDER);
	data = new GridData(GridData.FILL_BOTH);
	data.heightHint = 200;
	data.widthHint = 150;
	availableTree.setLayoutData(data);
	availableTree.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	setEnablement();
	}
	});

	// slosh buttons
	Composite comp = new Composite(this, SWT.NONE);
	data = new GridData(GridData.FILL_BOTH);
	data.widthHint = 120;
	comp.setLayoutData(data);

	layout = new GridLayout();
	layout.marginWidth = 5;
	layout.marginHeight = 25;
	layout.verticalSpacing = 20;
	comp.setLayout(layout);

	add = new Button(comp, SWT.PUSH);
	add.setText(ServerUIPlugin.getResource("%wizModuleAdd"));
	add.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	add.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	add(false);
	}
	});

	remove = new Button(comp, SWT.PUSH);
	remove.setText(ServerUIPlugin.getResource("%wizModuleRemove"));
	remove.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	remove.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	remove(false);
	}
	});

	label = new Label(comp, SWT.NONE);
	label.setText("");

	addAll = new Button(comp, SWT.PUSH);
	addAll.setText(ServerUIPlugin.getResource("%wizModuleAddAll"));
	addAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	addAll.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	add(true);
	}
	});

	removeAll = new Button(comp, SWT.PUSH);
	removeAll.setText(ServerUIPlugin.getResource("%wizModuleRemoveAll"));
	removeAll.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	removeAll.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	remove(true);
	}
	});

	deployedTree = new Tree(this, SWT.BORDER);
	data = new GridData(GridData.FILL_BOTH);
	data.widthHint = 150;
	deployedTree.setLayoutData(data);
	deployedTree.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	setEnablement();
	}
	});

	parentTreeItemMap = new HashMap();
	fillTree(availableTree, modules);
	fillTree(deployedTree, deployed);

	setEnablement();

	availableTree.setFocus();

	Dialog.applyDialogFont(this);
	}

	protected void setEnablement() {
	boolean enabled = false;
	wizard.setMessage(null, IMessageProvider.NONE);
	if (availableTree.getItemCount() > 0) {
	try {
	TreeItem item = availableTree.getSelection()[0];
	item = (TreeItem) parentTreeItemMap.get(item);
	IModule module = (IModule) item.getData();

	IStatus status = (IStatus) errorMap.get(module);
	if (modules.contains(module)) {
	if (status == null)
	enabled = true;
	else if (status.getSeverity() == IStatus.ERROR)
	wizard.setMessage(status.getMessage(), IMessageProvider.ERROR);
	else if (status.getSeverity() == IStatus.WARNING)
	wizard.setMessage(status.getMessage(), IMessageProvider.WARNING);
	else if (status.getSeverity() == IStatus.INFO)
	wizard.setMessage(status.getMessage(), IMessageProvider.INFORMATION);
	}
	} catch (Exception e) {
	// ignore
	}
	}
	add.setEnabled(enabled);
	addAll.setEnabled(availableTree.getItemCount() > 0);

	enabled = false;
	if (deployedTree.getItemCount() > 0) {
	try {
	TreeItem item = deployedTree.getSelection()[0];
	item = (TreeItem) parentTreeItemMap.get(item);
	IModule module = (IModule) item.getData();
	if (deployed.contains(module) && !module.equals(newModule))
	enabled = true;
	} catch (Exception e) {
	// ignore
	}
	}
	remove.setEnabled(enabled);
	if (newModule == null)
	removeAll.setEnabled(deployedTree.getItemCount() > 0);
	else
	removeAll.setEnabled(deployedTree.getItemCount() > 1);
	}

	protected void addChildren(TreeItem item, IModule[] module) {
	try {
	IModule[] children = (IModule[]) childModuleMap.get(module);
	if (children != null) {
	int size = children.length;
	for (int i = 0; i < size; i++) {
	IModule child = children[i];
	TreeItem childItem = new TreeItem(item, SWT.NONE);
	childItem.setText(slp.getText(child));
	childItem.setImage(slp.getImage(child));
	childItem.setData(child);
	parentTreeItemMap.put(childItem, item);

	int size2 = module.length;
	IModule[] module2 = new IModule[size2 + 1];
	System.arraycopy(module, 0, module2, 0, size2);
	module2[size2] = child;
	addChildren(childItem, module2);
	}
	}
	} catch (Exception e) {
	// ignore
	}
	}

	protected void fillTree(Tree tree, List modules2) {
	tree.removeAll();

	Iterator iterator = modules2.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	TreeItem item = new TreeItem(tree, SWT.NONE);
	item.setText(slp.getText(module));
	item.setImage(slp.getImage(module));
	item.setData(module);
	parentTreeItemMap.put(item, item);
	addChildren(item, new IModule[] { module });
	}
	}

	protected void add(boolean all) {
	if (all)
	moveAll(availableTree.getItems(), true);
	else
	moveAll(availableTree.getSelection(), true);
	updateTaskModel();
	}

	protected void remove(boolean all) {
	if (all)
	moveAll(deployedTree.getItems(), false);
	else
	moveAll(deployedTree.getSelection(), false);
	updateTaskModel();
	}

	protected void moveAll(TreeItem[] items, boolean add2) {
	int size = items.length;
	List list = new ArrayList();
	for (int i = 0; i < size; i++) {
	TreeItem item = (TreeItem) parentTreeItemMap.get(items[i]);
	IModule module = (IModule) item.getData();

	if (!list.contains(module))
	list.add(module);
	}

	Iterator iterator = list.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	if (add2) {
	modules.remove(module);
	deployed.add(module);
	} else if (!module.equals(newModule)) {
	modules.add(module);
	deployed.remove(module);
	}
	}

	parentTreeItemMap = new HashMap();
	fillTree(availableTree, modules);
	fillTree(deployedTree, deployed);

	setEnablement();
	}

	protected void updateTaskModel() {
	if (taskModel == null)
	return;

	taskModel.putObject(TaskModel.TASK_MODULES, getModuleMap());
	wizard.update();
	}

	/**
	* Return true if this page is complete.
	* @return boolean
	*/
	public boolean isPageComplete() {
	return true;
	}

	public List getModulesToRemove() {
	List list = new ArrayList();
	Iterator iterator = originalModules.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	if (!deployed.contains(module))
	list.add(module);
	}
	return list;
	}

	public List getModulesToAdd() {
	List list = new ArrayList();
	Iterator iterator = deployed.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	if (!originalModules.contains(module))
	list.add(module);
	}
	return list;
	}

	private void addChildMap(List map, IModule[] parents, IModule[] children) {
	if (children == null)
	return;

	int size = children.length;
	for (int i = 0; i < size; i++) {
	IModule module = children[i];

	int size2 = parents.length;
	IModule[] modules2 = new IModule[size2 + 1];
	System.arraycopy(parents, 0, modules2, 0, size2);
	modules2[size2] = module;
	map.add(modules2);

	IModule[] children2 = (IModule[]) childModuleMap.get(module);
	if (children2 != null)
	addChildMap(map, modules2, children2);
	}
	}

	public List getModuleMap() {
	final List map = new ArrayList();

	Iterator iterator = deployed.iterator();
	while (iterator.hasNext()) {
	IModule module = (IModule) iterator.next();
	IModule[] moduleTree = new IModule[] { module };
	map.add(moduleTree);
	IModule[] children = (IModule[]) childModuleMap.get(module);
	if (children != null)
	addChildMap(map, moduleTree, children);
	}

	return map;
	}
	}