ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/refactoring/LaunchConfigurationBuildfileChange.java - platform/eclipse.platform - Git at Google

 /*******************************************************************************
  * Copyright (c) 2003, 2013 IBM Corporation and others.
  *
  * 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.ant.internal.ui.refactoring;

 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.ant.core.AntCorePlugin;
 import org.eclipse.ant.internal.core.IAntCoreConstants;
 import org.eclipse.ant.internal.ui.AntUtil;
 import org.eclipse.ant.launching.IAntLaunchConstants;
 import org.eclipse.core.externaltools.internal.IExternalToolConstants;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.OperationCanceledException;
 import org.eclipse.core.runtime.content.IContentDescription;
 import org.eclipse.core.runtime.content.IContentType;
 import org.eclipse.core.variables.IStringVariableManager;
 import org.eclipse.core.variables.VariablesPlugin;
 import org.eclipse.debug.core.DebugPlugin;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationType;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.debug.core.ILaunchManager;
 import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
 import org.eclipse.ltk.core.refactoring.Change;
 import org.eclipse.ltk.core.refactoring.CompositeChange;
 import org.eclipse.ltk.core.refactoring.RefactoringStatus;

 public class LaunchConfigurationBuildfileChange extends Change {

 	private ILaunchConfiguration fLaunchConfiguration;
 	private String fNewBuildfileLocation;
 	private String fNewProjectName;
 	private String fNewLaunchConfigurationName;
 	private String fOldBuildfileLocation;
 	private String fOldProjectName;
 	private ILaunchConfigurationWorkingCopy fNewLaunchConfiguration;
 	private String fNewConfigContainerName;

 	/**
 	 * Create a change for each launch configuration which needs to be updated for this IJavaProject rename.
 	 *
 	 * @since 3.5
 	 */
 	public static Change createChangesForProjectRename(IProject project, String newProjectName) throws CoreException {
 		String projectName = project.getDescription().getName();
 		ILaunchConfiguration[] configs = getAntLaunchConfigurations();
 		List<Change> changes = createChangesForProjectRename(configs, projectName, newProjectName);
 		return createChangeFromList(changes, RefactoringMessages.LaunchConfigurationBuildfileChange_7);
 	}

 	/**
 	 * Create a change for each launch configuration which needs to be updated for this buildfile rename.
 	 */
 	public static Change createChangesForBuildfileRename(IFile file, String newBuildfileName) throws CoreException {
 		IContentDescription description = null;
 		try {
 			description = file.getContentDescription();
 		}
 		catch (CoreException e) {
 			// missing file
 			return null;
 		}
 		if (description == null) {
 			return null;
 		}
 		IContentType contentType = description.getContentType();
 		if (contentType == null || !AntCorePlugin.ANT_BUILDFILE_CONTENT_TYPE.equals(contentType.getId())) {
 			return null; // not an Ant buildfile
 		}
 		ILaunchConfiguration[] configs = getAntLaunchConfigurations();
 		List<Change> changes = createChangesForBuildfileRename(file, configs, file.getProject().getName(), newBuildfileName);
 		return createChangeFromList(changes, RefactoringMessages.LaunchConfigurationBuildfileChange_7);
 	}

 	private static ILaunchConfiguration[] getAntLaunchConfigurations() throws CoreException {
 		ILaunchManager manager = DebugPlugin.getDefault().getLaunchManager();
 		// Ant launch configurations
 		ILaunchConfigurationType configurationType = manager.getLaunchConfigurationType(IAntLaunchConstants.ID_ANT_LAUNCH_CONFIGURATION_TYPE);
 		ILaunchConfiguration[] configs = manager.getLaunchConfigurations(configurationType);
 		return configs;
 	}

 	/**
 	 * Take a list of Changes, and return a unique Change, a CompositeChange, or null.
 	 */
 	private static Change createChangeFromList(List<Change> changes, String changeLabel) {
 		int nbChanges = changes.size();
 		if (nbChanges == 0) {
 			return null;
 		} else if (nbChanges == 1) {
 			return changes.get(0);
 		} else {
 			return new CompositeChange(changeLabel, changes.toArray(new Change[changes.size()]));
 		}
 	}

 	/**
 	 * Create a change for each launch configuration from the given list which needs to be updated for this IProject rename.
 	 */
 	private static List<Change> createChangesForProjectRename(ILaunchConfiguration[] configs, String projectName, String newProjectName) throws CoreException {
 		List<Change> changes = new ArrayList<>();
 		for (ILaunchConfiguration launchConfiguration : configs) {
 			String launchConfigurationProjectName = launchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
 			if (projectName.equals(launchConfigurationProjectName)) {
 				LaunchConfigurationBuildfileChange change = new LaunchConfigurationBuildfileChange(launchConfiguration, null, null, newProjectName, false);
 				String newContainerName = computeNewContainerName(launchConfiguration);
 				if (newContainerName != null) {
 					change.setNewContainerName(newContainerName);
 				}

 				changes.add(change);
 			}
 		}
 		return changes;
 	}

 	/**
 	 * Create a change for each launch configuration from the given list which needs to be updated for this buildfile rename.
 	 */
 	private static List<Change> createChangesForBuildfileRename(IFile buildfile, ILaunchConfiguration[] configs, String projectName, String newBuildfileName) throws CoreException {
 		List<Change> changes = new ArrayList<>();
 		for (ILaunchConfiguration launchConfiguration : configs) {
 			String launchConfigurationProjectName = launchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
 			if (projectName.equals(launchConfigurationProjectName)) {
 				LaunchConfigurationBuildfileChange change = new LaunchConfigurationBuildfileChange(launchConfiguration, buildfile.getName(), newBuildfileName, null, false);
 				changes.add(change);
 			}
 		}
 		return changes;
 	}

 	protected void setNewContainerName(String newContainerName) {
 		fNewConfigContainerName = newContainerName;
 	}

 	/**
 	 * Creates a new container name for the given configuration
 	 *
 	 * @param launchConfiguration
 	 * @return the new container name
 	 * @since 3.5
 	 */
 	private static String computeNewContainerName(ILaunchConfiguration launchConfiguration) {
 		IFile file = launchConfiguration.getFile();
 		if (file != null) {
 			return file.getParent().getProjectRelativePath().toString();
 		}
 		return null;
 	}

 	protected LaunchConfigurationBuildfileChange(ILaunchConfiguration launchConfiguration, String oldBuildFileName, String newBuildfileName, String newProjectName, boolean undo) throws CoreException {
 		fLaunchConfiguration = launchConfiguration;
 		fNewLaunchConfiguration = launchConfiguration.getWorkingCopy();
 		fNewBuildfileLocation = newBuildfileName;
 		fNewProjectName = newProjectName;
 		fOldBuildfileLocation = oldBuildFileName;
 		fOldProjectName = fLaunchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
 		if (fNewBuildfileLocation != null) {
 			// generate the new configuration name
 			String launchConfigurationName = fLaunchConfiguration.getName();
 			fNewLaunchConfigurationName = launchConfigurationName.replaceAll(oldBuildFileName, newBuildfileName);
 			if (launchConfigurationName.equals(fNewLaunchConfigurationName)
 					|| (!undo && DebugPlugin.getDefault().getLaunchManager().isExistingLaunchConfigurationName(fNewLaunchConfigurationName))) {
 				fNewLaunchConfigurationName = null;
 			}
 		}
 	}

 	@Override
 	public String getName() {
 		if (fNewLaunchConfigurationName != null) {
 			return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_0, new Object[] { fLaunchConfiguration.getName(),
 					fNewLaunchConfigurationName });
 		}
 		if (fNewProjectName == null) {
 			return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_1, new Object[] { fLaunchConfiguration.getName() });
 		}
 		return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_2, new Object[] { fLaunchConfiguration.getName() });
 	}

 	@Override
 	public void initializeValidationData(IProgressMonitor pm) {
 		// do nothing
 	}

 	@Override
 	public RefactoringStatus isValid(IProgressMonitor pm) throws CoreException, OperationCanceledException {
 		if (fLaunchConfiguration.exists()) {
 			String buildFileLocation = fLaunchConfiguration.getAttribute(IExternalToolConstants.ATTR_LOCATION, IAntCoreConstants.EMPTY_STRING);
 			if (fOldBuildfileLocation == null
 					|| (buildFileLocation.endsWith(fOldBuildfileLocation + '}') || buildFileLocation.endsWith(fOldBuildfileLocation))) {
 				String projectName = fLaunchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
 				if (fOldProjectName.equals(projectName)) {
 					return new RefactoringStatus();
 				}
 				return RefactoringStatus.createWarningStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_4, new Object[] {
 						fLaunchConfiguration.getName(), fOldProjectName }));
 			}
 			return RefactoringStatus.createWarningStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_5, new Object[] {
 					fLaunchConfiguration.getName(), fOldBuildfileLocation }));
 		}
 		return RefactoringStatus.createFatalErrorStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_6, new Object[] {
 				fLaunchConfiguration.getName() }));
 	}

 	@Override
 	public Change perform(IProgressMonitor pm) throws CoreException {
 		if (fNewConfigContainerName != null) {
 			IWorkspace workspace = ResourcesPlugin.getWorkspace();
 			IWorkspaceRoot root = workspace.getRoot();
 			IProject project = root.getProject(fNewProjectName);
 			IContainer container = (IContainer) project.findMember(fNewConfigContainerName);
 			fNewLaunchConfiguration.setContainer(container);
 		}

 		String oldBuildfileLocation = fNewLaunchConfiguration.getAttribute(IExternalToolConstants.ATTR_LOCATION, IAntCoreConstants.EMPTY_STRING);
 		String oldProjectName;
 		if (fNewBuildfileLocation != null) {
 			String newBuildFileLocation = oldBuildfileLocation.replaceFirst(fOldBuildfileLocation, fNewBuildfileLocation);
 			fNewLaunchConfiguration.setAttribute(IExternalToolConstants.ATTR_LOCATION, newBuildFileLocation);
 			fNewLaunchConfiguration.setMappedResources(new IResource[] { getAssociatedFile(newBuildFileLocation) });
 		}
 		if (fNewProjectName != null) {
 			oldProjectName = fOldProjectName;
 			fNewLaunchConfiguration.setAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, fNewProjectName);
 			String newBuildFileLocation = oldBuildfileLocation.replaceFirst(oldProjectName, fNewProjectName);
 			fNewLaunchConfiguration.setAttribute(IExternalToolConstants.ATTR_LOCATION, newBuildFileLocation);
 			fNewLaunchConfiguration.setMappedResources(new IResource[] { getAssociatedFile(newBuildFileLocation) });
 			String launchConfigurationName = fLaunchConfiguration.getName();
 			fNewLaunchConfigurationName = launchConfigurationName.replaceFirst(oldProjectName, fNewProjectName);
 			if (launchConfigurationName.equals(fNewLaunchConfigurationName)
 					|| DebugPlugin.getDefault().getLaunchManager().isExistingLaunchConfigurationName(fNewLaunchConfigurationName)) {
 				fNewLaunchConfigurationName = null;
 			}
 		} else {
 			oldProjectName = null;
 		}
 		if (fNewLaunchConfigurationName != null) {
 			fNewLaunchConfiguration.rename(fNewLaunchConfigurationName);
 		}

 		fNewLaunchConfiguration.doSave();

 		// create the undo change
 		return new LaunchConfigurationBuildfileChange(fNewLaunchConfiguration, fNewBuildfileLocation, fOldBuildfileLocation, oldProjectName, true);
 	}

 	@Override
 	public Object getModifiedElement() {
 		return fLaunchConfiguration;
 	}

 	private IFile getAssociatedFile(String location) {
 		IFile file = null;
 		IStringVariableManager manager = VariablesPlugin.getDefault().getStringVariableManager();
 		try {
 			String expandedLocation = manager.performStringSubstitution(location);
 			if (expandedLocation != null) {
 				file = AntUtil.getFileForLocation(expandedLocation, null);
 			}
 		}
 		catch (CoreException e) {
 			// do nothing
 		}
 		return file;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2003, 2013 IBM Corporation and others.
	*
	* 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.ant.internal.ui.refactoring;

	import java.text.MessageFormat;
	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.ant.core.AntCorePlugin;
	import org.eclipse.ant.internal.core.IAntCoreConstants;
	import org.eclipse.ant.internal.ui.AntUtil;
	import org.eclipse.ant.launching.IAntLaunchConstants;
	import org.eclipse.core.externaltools.internal.IExternalToolConstants;
	import org.eclipse.core.resources.IContainer;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.IWorkspaceRoot;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.OperationCanceledException;
	import org.eclipse.core.runtime.content.IContentDescription;
	import org.eclipse.core.runtime.content.IContentType;
	import org.eclipse.core.variables.IStringVariableManager;
	import org.eclipse.core.variables.VariablesPlugin;
	import org.eclipse.debug.core.DebugPlugin;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationType;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.debug.core.ILaunchManager;
	import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
	import org.eclipse.ltk.core.refactoring.Change;
	import org.eclipse.ltk.core.refactoring.CompositeChange;
	import org.eclipse.ltk.core.refactoring.RefactoringStatus;

	public class LaunchConfigurationBuildfileChange extends Change {

	private ILaunchConfiguration fLaunchConfiguration;
	private String fNewBuildfileLocation;
	private String fNewProjectName;
	private String fNewLaunchConfigurationName;
	private String fOldBuildfileLocation;
	private String fOldProjectName;
	private ILaunchConfigurationWorkingCopy fNewLaunchConfiguration;
	private String fNewConfigContainerName;

	/**
	* Create a change for each launch configuration which needs to be updated for this IJavaProject rename.
	*
	* @since 3.5
	*/
	public static Change createChangesForProjectRename(IProject project, String newProjectName) throws CoreException {
	String projectName = project.getDescription().getName();
	ILaunchConfiguration[] configs = getAntLaunchConfigurations();
	List<Change> changes = createChangesForProjectRename(configs, projectName, newProjectName);
	return createChangeFromList(changes, RefactoringMessages.LaunchConfigurationBuildfileChange_7);
	}

	/**
	* Create a change for each launch configuration which needs to be updated for this buildfile rename.
	*/
	public static Change createChangesForBuildfileRename(IFile file, String newBuildfileName) throws CoreException {
	IContentDescription description = null;
	try {
	description = file.getContentDescription();
	}
	catch (CoreException e) {
	// missing file
	return null;
	}
	if (description == null) {
	return null;
	}
	IContentType contentType = description.getContentType();
	if (contentType == null \|\| !AntCorePlugin.ANT_BUILDFILE_CONTENT_TYPE.equals(contentType.getId())) {
	return null; // not an Ant buildfile
	}
	ILaunchConfiguration[] configs = getAntLaunchConfigurations();
	List<Change> changes = createChangesForBuildfileRename(file, configs, file.getProject().getName(), newBuildfileName);
	return createChangeFromList(changes, RefactoringMessages.LaunchConfigurationBuildfileChange_7);
	}

	private static ILaunchConfiguration[] getAntLaunchConfigurations() throws CoreException {
	ILaunchManager manager = DebugPlugin.getDefault().getLaunchManager();
	// Ant launch configurations
	ILaunchConfigurationType configurationType = manager.getLaunchConfigurationType(IAntLaunchConstants.ID_ANT_LAUNCH_CONFIGURATION_TYPE);
	ILaunchConfiguration[] configs = manager.getLaunchConfigurations(configurationType);
	return configs;
	}

	/**
	* Take a list of Changes, and return a unique Change, a CompositeChange, or null.
	*/
	private static Change createChangeFromList(List<Change> changes, String changeLabel) {
	int nbChanges = changes.size();
	if (nbChanges == 0) {
	return null;
	} else if (nbChanges == 1) {
	return changes.get(0);
	} else {
	return new CompositeChange(changeLabel, changes.toArray(new Change[changes.size()]));
	}
	}

	/**
	* Create a change for each launch configuration from the given list which needs to be updated for this IProject rename.
	*/
	private static List<Change> createChangesForProjectRename(ILaunchConfiguration[] configs, String projectName, String newProjectName) throws CoreException {
	List<Change> changes = new ArrayList<>();
	for (ILaunchConfiguration launchConfiguration : configs) {
	String launchConfigurationProjectName = launchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
	if (projectName.equals(launchConfigurationProjectName)) {
	LaunchConfigurationBuildfileChange change = new LaunchConfigurationBuildfileChange(launchConfiguration, null, null, newProjectName, false);
	String newContainerName = computeNewContainerName(launchConfiguration);
	if (newContainerName != null) {
	change.setNewContainerName(newContainerName);
	}

	changes.add(change);
	}
	}
	return changes;
	}

	/**
	* Create a change for each launch configuration from the given list which needs to be updated for this buildfile rename.
	*/
	private static List<Change> createChangesForBuildfileRename(IFile buildfile, ILaunchConfiguration[] configs, String projectName, String newBuildfileName) throws CoreException {
	List<Change> changes = new ArrayList<>();
	for (ILaunchConfiguration launchConfiguration : configs) {
	String launchConfigurationProjectName = launchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
	if (projectName.equals(launchConfigurationProjectName)) {
	LaunchConfigurationBuildfileChange change = new LaunchConfigurationBuildfileChange(launchConfiguration, buildfile.getName(), newBuildfileName, null, false);
	changes.add(change);
	}
	}
	return changes;
	}

	protected void setNewContainerName(String newContainerName) {
	fNewConfigContainerName = newContainerName;
	}

	/**
	* Creates a new container name for the given configuration
	*
	* @param launchConfiguration
	* @return the new container name
	* @since 3.5
	*/
	private static String computeNewContainerName(ILaunchConfiguration launchConfiguration) {
	IFile file = launchConfiguration.getFile();
	if (file != null) {
	return file.getParent().getProjectRelativePath().toString();
	}
	return null;
	}

	protected LaunchConfigurationBuildfileChange(ILaunchConfiguration launchConfiguration, String oldBuildFileName, String newBuildfileName, String newProjectName, boolean undo) throws CoreException {
	fLaunchConfiguration = launchConfiguration;
	fNewLaunchConfiguration = launchConfiguration.getWorkingCopy();
	fNewBuildfileLocation = newBuildfileName;
	fNewProjectName = newProjectName;
	fOldBuildfileLocation = oldBuildFileName;
	fOldProjectName = fLaunchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
	if (fNewBuildfileLocation != null) {
	// generate the new configuration name
	String launchConfigurationName = fLaunchConfiguration.getName();
	fNewLaunchConfigurationName = launchConfigurationName.replaceAll(oldBuildFileName, newBuildfileName);
	if (launchConfigurationName.equals(fNewLaunchConfigurationName)
	\|\| (!undo && DebugPlugin.getDefault().getLaunchManager().isExistingLaunchConfigurationName(fNewLaunchConfigurationName))) {
	fNewLaunchConfigurationName = null;
	}
	}
	}

	@Override
	public String getName() {
	if (fNewLaunchConfigurationName != null) {
	return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_0, new Object[] { fLaunchConfiguration.getName(),
	fNewLaunchConfigurationName });
	}
	if (fNewProjectName == null) {
	return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_1, new Object[] { fLaunchConfiguration.getName() });
	}
	return MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_2, new Object[] { fLaunchConfiguration.getName() });
	}

	@Override
	public void initializeValidationData(IProgressMonitor pm) {
	// do nothing
	}

	@Override
	public RefactoringStatus isValid(IProgressMonitor pm) throws CoreException, OperationCanceledException {
	if (fLaunchConfiguration.exists()) {
	String buildFileLocation = fLaunchConfiguration.getAttribute(IExternalToolConstants.ATTR_LOCATION, IAntCoreConstants.EMPTY_STRING);
	if (fOldBuildfileLocation == null
	\|\| (buildFileLocation.endsWith(fOldBuildfileLocation + '}') \|\| buildFileLocation.endsWith(fOldBuildfileLocation))) {
	String projectName = fLaunchConfiguration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
	if (fOldProjectName.equals(projectName)) {
	return new RefactoringStatus();
	}
	return RefactoringStatus.createWarningStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_4, new Object[] {
	fLaunchConfiguration.getName(), fOldProjectName }));
	}
	return RefactoringStatus.createWarningStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_5, new Object[] {
	fLaunchConfiguration.getName(), fOldBuildfileLocation }));
	}
	return RefactoringStatus.createFatalErrorStatus(MessageFormat.format(RefactoringMessages.LaunchConfigurationBuildfileChange_6, new Object[] {
	fLaunchConfiguration.getName() }));
	}

	@Override
	public Change perform(IProgressMonitor pm) throws CoreException {
	if (fNewConfigContainerName != null) {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	IWorkspaceRoot root = workspace.getRoot();
	IProject project = root.getProject(fNewProjectName);
	IContainer container = (IContainer) project.findMember(fNewConfigContainerName);
	fNewLaunchConfiguration.setContainer(container);
	}

	String oldBuildfileLocation = fNewLaunchConfiguration.getAttribute(IExternalToolConstants.ATTR_LOCATION, IAntCoreConstants.EMPTY_STRING);
	String oldProjectName;
	if (fNewBuildfileLocation != null) {
	String newBuildFileLocation = oldBuildfileLocation.replaceFirst(fOldBuildfileLocation, fNewBuildfileLocation);
	fNewLaunchConfiguration.setAttribute(IExternalToolConstants.ATTR_LOCATION, newBuildFileLocation);
	fNewLaunchConfiguration.setMappedResources(new IResource[] { getAssociatedFile(newBuildFileLocation) });
	}
	if (fNewProjectName != null) {
	oldProjectName = fOldProjectName;
	fNewLaunchConfiguration.setAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, fNewProjectName);
	String newBuildFileLocation = oldBuildfileLocation.replaceFirst(oldProjectName, fNewProjectName);
	fNewLaunchConfiguration.setAttribute(IExternalToolConstants.ATTR_LOCATION, newBuildFileLocation);
	fNewLaunchConfiguration.setMappedResources(new IResource[] { getAssociatedFile(newBuildFileLocation) });
	String launchConfigurationName = fLaunchConfiguration.getName();
	fNewLaunchConfigurationName = launchConfigurationName.replaceFirst(oldProjectName, fNewProjectName);
	if (launchConfigurationName.equals(fNewLaunchConfigurationName)
	\|\| DebugPlugin.getDefault().getLaunchManager().isExistingLaunchConfigurationName(fNewLaunchConfigurationName)) {
	fNewLaunchConfigurationName = null;
	}
	} else {
	oldProjectName = null;
	}
	if (fNewLaunchConfigurationName != null) {
	fNewLaunchConfiguration.rename(fNewLaunchConfigurationName);
	}

	fNewLaunchConfiguration.doSave();

	// create the undo change
	return new LaunchConfigurationBuildfileChange(fNewLaunchConfiguration, fNewBuildfileLocation, fOldBuildfileLocation, oldProjectName, true);
	}

	@Override
	public Object getModifiedElement() {
	return fLaunchConfiguration;
	}

	private IFile getAssociatedFile(String location) {
	IFile file = null;
	IStringVariableManager manager = VariablesPlugin.getDefault().getStringVariableManager();
	try {
	String expandedLocation = manager.performStringSubstitution(location);
	if (expandedLocation != null) {
	file = AntUtil.getFileForLocation(expandedLocation, null);
	}
	}
	catch (CoreException e) {
	// do nothing
	}
	return file;
	}
	}