org.eclipse.jdt.ui/core refactoring/org/eclipse/jdt/internal/corext/refactoring/reorg/JavaMoveProcessor.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2006 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.jdt.internal.corext.refactoring.reorg;

 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.OperationCanceledException;

 import org.eclipse.core.resources.IResource;

 import org.eclipse.ltk.core.refactoring.Change;
 import org.eclipse.ltk.core.refactoring.ChangeDescriptor;
 import org.eclipse.ltk.core.refactoring.CompositeChange;
 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
 import org.eclipse.ltk.core.refactoring.TextEditBasedChange;
 import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
 import org.eclipse.ltk.core.refactoring.participants.MoveProcessor;
 import org.eclipse.ltk.core.refactoring.participants.RefactoringArguments;
 import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
 import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;

 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.JavaModelException;

 import org.eclipse.jdt.internal.corext.refactoring.JavaRefactoringArguments;
 import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
 import org.eclipse.jdt.internal.corext.refactoring.changes.DynamicValidationStateChange;
 import org.eclipse.jdt.internal.corext.refactoring.participants.JavaProcessors;
 import org.eclipse.jdt.internal.corext.refactoring.participants.ResourceProcessors;
 import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgPolicy.IMovePolicy;
 import org.eclipse.jdt.internal.corext.refactoring.tagging.ICommentProvider;
 import org.eclipse.jdt.internal.corext.refactoring.tagging.IQualifiedNameUpdating;
 import org.eclipse.jdt.internal.corext.refactoring.tagging.IScriptableRefactoring;
 import org.eclipse.jdt.internal.corext.util.Resources;

 public final class JavaMoveProcessor extends MoveProcessor implements IScriptableRefactoring, ICommentProvider, IQualifiedNameUpdating, IReorgDestinationValidator {

 	public static final String IDENTIFIER= "org.eclipse.jdt.ui.MoveProcessor"; //$NON-NLS-1$

 	private String fComment;

 	private ICreateTargetQueries fCreateTargetQueries;

 	private IMovePolicy fMovePolicy;

 	private IReorgQueries fReorgQueries;

 	private boolean fWasCanceled;

 	public JavaMoveProcessor(IMovePolicy policy) {
 		fMovePolicy= policy;
 	}

 	public boolean canChildrenBeDestinations(IJavaElement javaElement) {
 		return fMovePolicy.canChildrenBeDestinations(javaElement);
 	}

 	public boolean canChildrenBeDestinations(IResource resource) {
 		return fMovePolicy.canChildrenBeDestinations(resource);
 	}

 	public boolean canElementBeDestination(IJavaElement javaElement) {
 		return fMovePolicy.canElementBeDestination(javaElement);
 	}

 	public boolean canElementBeDestination(IResource resource) {
 		return fMovePolicy.canElementBeDestination(resource);
 	}

 	public boolean canEnableComment() {
 		return true;
 	}

 	public boolean canEnableQualifiedNameUpdating() {
 		return fMovePolicy.canEnableQualifiedNameUpdating();
 	}

 	public boolean canUpdateQualifiedNames() {
 		return fMovePolicy.canUpdateQualifiedNames();
 	}

 	public boolean canUpdateReferences() {
 		return fMovePolicy.canUpdateReferences();
 	}

 	public RefactoringStatus checkFinalConditions(IProgressMonitor pm, CheckConditionsContext context) throws CoreException {
 		try {
 			Assert.isNotNull(fReorgQueries);
 			fWasCanceled= false;
 			return fMovePolicy.checkFinalConditions(pm, context, fReorgQueries);
 		} catch (OperationCanceledException e) {
 			fWasCanceled= true;
 			throw e;
 		}
 	}

 	public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
 		pm.beginTask("", 1); //$NON-NLS-1$
 		try {
 			RefactoringStatus result= new RefactoringStatus();
 			result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotNulls(fMovePolicy.getResources()))));
 			IResource[] javaResources= ReorgUtils.getResources(fMovePolicy.getJavaElements());
 			result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotNulls(javaResources))));
 			return result;
 		} finally {
 			pm.done();
 		}
 	}

 	public Change createChange(IProgressMonitor pm) throws CoreException {
 		Assert.isTrue(fMovePolicy.getJavaElementDestination() == null || fMovePolicy.getResourceDestination() == null);
 		Assert.isTrue(fMovePolicy.getJavaElementDestination() != null || fMovePolicy.getResourceDestination() != null);
 		try {
 			final DynamicValidationStateChange result= new DynamicValidationStateChange(RefactoringCoreMessages.JavaMoveProcessor_change_name) {

 				public ChangeDescriptor getDescriptor() {
 					return fMovePolicy.getDescriptor();
 				}

 				public Change perform(IProgressMonitor pm2) throws CoreException {
 					Change change= super.perform(pm2);
 					Change[] changes= getChildren();
 					for (int index= 0; index < changes.length; index++) {
 						if (!(changes[index] instanceof TextEditBasedChange))
 							return null;
 					}
 					return change;
 				}
 			};
 			CreateTargetExecutionLog log= null;
 			if (fCreateTargetQueries instanceof MonitoringCreateTargetQueries) {
 				final MonitoringCreateTargetQueries queries= (MonitoringCreateTargetQueries) fCreateTargetQueries;
 				final ICreateTargetQueries delegate= queries.getDelegate();
 				if (delegate instanceof LoggedCreateTargetQueries)
 					log= queries.getCreateTargetExecutionLog();
 			}
 			if (log != null) {
 				final Object[] selected= log.getSelectedElements();
 				for (int index= 0; index < selected.length; index++) {
 					result.add(new LoggedCreateTargetChange(selected[index], fCreateTargetQueries));
 				}
 			}
 			Change change= fMovePolicy.createChange(pm);
 			if (change instanceof CompositeChange) {
 				CompositeChange subComposite= (CompositeChange) change;
 				result.merge(subComposite);
 			} else {
 				result.add(change);
 			}
 			return result;
 		} finally {
 			pm.done();
 		}
 	}

 	private String[] getAffectedProjectNatures() throws CoreException {
 		String[] jNatures= JavaProcessors.computeAffectedNaturs(fMovePolicy.getJavaElements());
 		String[] rNatures= ResourceProcessors.computeAffectedNatures(fMovePolicy.getResources());
 		Set result= new HashSet();
 		result.addAll(Arrays.asList(jNatures));
 		result.addAll(Arrays.asList(rNatures));
 		return (String[]) result.toArray(new String[result.size()]);
 	}

 	public String getComment() {
 		return fComment;
 	}

 	public Object getCommonParentForInputElements() {
 		return new ParentChecker(fMovePolicy.getResources(), fMovePolicy.getJavaElements()).getCommonParent();
 	}

 	public ICreateTargetQuery getCreateTargetQuery() {
 		return fMovePolicy.getCreateTargetQuery(fCreateTargetQueries);
 	}

 	protected Object getDestination() {
 		IJavaElement je= fMovePolicy.getJavaElementDestination();
 		if (je != null)
 			return je;
 		return fMovePolicy.getResourceDestination();
 	}

 	public Object[] getElements() {
 		List result= new ArrayList();
 		result.addAll(Arrays.asList(fMovePolicy.getJavaElements()));
 		result.addAll(Arrays.asList(fMovePolicy.getResources()));
 		return result.toArray();
 	}

 	public String getFilePatterns() {
 		return fMovePolicy.getFilePatterns();
 	}

 	public String getIdentifier() {
 		return IDENTIFIER;
 	}

 	public IJavaElement[] getJavaElements() {
 		return fMovePolicy.getJavaElements();
 	}

 	public String getProcessorName() {
 		return RefactoringCoreMessages.MoveRefactoring_0;
 	}

 	public IResource[] getResources() {
 		return fMovePolicy.getResources();
 	}

 	public boolean getUpdateQualifiedNames() {
 		return fMovePolicy.getUpdateQualifiedNames();
 	}

 	public boolean getUpdateReferences() {
 		if (!canUpdateReferences())
 			return false;
 		return fMovePolicy.getUpdateReferences();
 	}

 	public boolean hasAllInputSet() {
 		return fMovePolicy.hasAllInputSet();
 	}

 	public boolean hasDestinationSet() {
 		return fMovePolicy.getJavaElementDestination() != null || fMovePolicy.getResourceDestination() != null;
 	}

 	public RefactoringStatus initialize(RefactoringArguments arguments) {
 		setReorgQueries(new NullReorgQueries());
 		final RefactoringStatus status= new RefactoringStatus();
 		if (arguments instanceof JavaRefactoringArguments) {
 			final JavaRefactoringArguments extended= (JavaRefactoringArguments) arguments;
 			fMovePolicy= ReorgPolicyFactory.createMovePolicy(status, arguments);
 			if (fMovePolicy != null && !status.hasFatalError()) {
 				final CreateTargetExecutionLog log= ReorgPolicyFactory.loadCreateTargetExecutionLog(status, extended);
 				if (log != null && !status.hasFatalError()) {
 					fMovePolicy.setDestinationCheck(false);
 					fCreateTargetQueries= new MonitoringCreateTargetQueries(new LoggedCreateTargetQueries(log), log);
 				}
 				status.merge(fMovePolicy.initialize(arguments));
 			}
 		} else
 			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.InitializableRefactoring_inacceptable_arguments);
 		return status;
 	}

 	public boolean isApplicable() throws CoreException {
 		return fMovePolicy.canEnable();
 	}

 	public boolean isTextualMove() {
 		return fMovePolicy.isTextualMove();
 	}

 	public RefactoringParticipant[] loadParticipants(RefactoringStatus status, SharableParticipants shared) throws CoreException {
 		return fMovePolicy.loadParticipants(status, this, getAffectedProjectNatures(), shared);
 	}

 	public Change postCreateChange(Change[] participantChanges, IProgressMonitor pm) throws CoreException {
 		return fMovePolicy.postCreateChange(participantChanges, pm);
 	}

 	public void setComment(String comment) {
 		fComment= comment;
 	}

 	public void setCreateTargetQueries(ICreateTargetQueries queries) {
 		Assert.isNotNull(queries);
 		fCreateTargetQueries= new MonitoringCreateTargetQueries(queries, fMovePolicy.getCreateTargetExecutionLog());
 	}

 	public RefactoringStatus setDestination(IJavaElement destination) throws JavaModelException {
 		return fMovePolicy.setDestination(destination);
 	}

 	public RefactoringStatus setDestination(IResource destination) throws JavaModelException {
 		return fMovePolicy.setDestination(destination);
 	}

 	public void setFilePatterns(String patterns) {
 		fMovePolicy.setFilePatterns(patterns);
 	}

 	public void setReorgQueries(IReorgQueries queries) {
 		Assert.isNotNull(queries);
 		fReorgQueries= queries;
 	}

 	public void setUpdateQualifiedNames(boolean update) {
 		fMovePolicy.setUpdateQualifiedNames(update);
 	}

 	public void setUpdateReferences(boolean update) {
 		fMovePolicy.setUpdateReferences(update);
 	}

 	public boolean wasCanceled() {
 		return fWasCanceled;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2006 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.jdt.internal.corext.refactoring.reorg;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.OperationCanceledException;

	import org.eclipse.core.resources.IResource;

	import org.eclipse.ltk.core.refactoring.Change;
	import org.eclipse.ltk.core.refactoring.ChangeDescriptor;
	import org.eclipse.ltk.core.refactoring.CompositeChange;
	import org.eclipse.ltk.core.refactoring.RefactoringStatus;
	import org.eclipse.ltk.core.refactoring.TextEditBasedChange;
	import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
	import org.eclipse.ltk.core.refactoring.participants.MoveProcessor;
	import org.eclipse.ltk.core.refactoring.participants.RefactoringArguments;
	import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
	import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;

	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.JavaModelException;

	import org.eclipse.jdt.internal.corext.refactoring.JavaRefactoringArguments;
	import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
	import org.eclipse.jdt.internal.corext.refactoring.changes.DynamicValidationStateChange;
	import org.eclipse.jdt.internal.corext.refactoring.participants.JavaProcessors;
	import org.eclipse.jdt.internal.corext.refactoring.participants.ResourceProcessors;
	import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgPolicy.IMovePolicy;
	import org.eclipse.jdt.internal.corext.refactoring.tagging.ICommentProvider;
	import org.eclipse.jdt.internal.corext.refactoring.tagging.IQualifiedNameUpdating;
	import org.eclipse.jdt.internal.corext.refactoring.tagging.IScriptableRefactoring;
	import org.eclipse.jdt.internal.corext.util.Resources;

	public final class JavaMoveProcessor extends MoveProcessor implements IScriptableRefactoring, ICommentProvider, IQualifiedNameUpdating, IReorgDestinationValidator {

	public static final String IDENTIFIER= "org.eclipse.jdt.ui.MoveProcessor"; //$NON-NLS-1$

	private String fComment;

	private ICreateTargetQueries fCreateTargetQueries;

	private IMovePolicy fMovePolicy;

	private IReorgQueries fReorgQueries;

	private boolean fWasCanceled;

	public JavaMoveProcessor(IMovePolicy policy) {
	fMovePolicy= policy;
	}

	public boolean canChildrenBeDestinations(IJavaElement javaElement) {
	return fMovePolicy.canChildrenBeDestinations(javaElement);
	}

	public boolean canChildrenBeDestinations(IResource resource) {
	return fMovePolicy.canChildrenBeDestinations(resource);
	}

	public boolean canElementBeDestination(IJavaElement javaElement) {
	return fMovePolicy.canElementBeDestination(javaElement);
	}

	public boolean canElementBeDestination(IResource resource) {
	return fMovePolicy.canElementBeDestination(resource);
	}

	public boolean canEnableComment() {
	return true;
	}

	public boolean canEnableQualifiedNameUpdating() {
	return fMovePolicy.canEnableQualifiedNameUpdating();
	}

	public boolean canUpdateQualifiedNames() {
	return fMovePolicy.canUpdateQualifiedNames();
	}

	public boolean canUpdateReferences() {
	return fMovePolicy.canUpdateReferences();
	}

	public RefactoringStatus checkFinalConditions(IProgressMonitor pm, CheckConditionsContext context) throws CoreException {
	try {
	Assert.isNotNull(fReorgQueries);
	fWasCanceled= false;
	return fMovePolicy.checkFinalConditions(pm, context, fReorgQueries);
	} catch (OperationCanceledException e) {
	fWasCanceled= true;
	throw e;
	}
	}

	public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
	pm.beginTask("", 1); //$NON-NLS-1$
	try {
	RefactoringStatus result= new RefactoringStatus();
	result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotNulls(fMovePolicy.getResources()))));
	IResource[] javaResources= ReorgUtils.getResources(fMovePolicy.getJavaElements());
	result.merge(RefactoringStatus.create(Resources.checkInSync(ReorgUtils.getNotNulls(javaResources))));
	return result;
	} finally {
	pm.done();
	}
	}

	public Change createChange(IProgressMonitor pm) throws CoreException {
	Assert.isTrue(fMovePolicy.getJavaElementDestination() == null \|\| fMovePolicy.getResourceDestination() == null);
	Assert.isTrue(fMovePolicy.getJavaElementDestination() != null \|\| fMovePolicy.getResourceDestination() != null);
	try {
	final DynamicValidationStateChange result= new DynamicValidationStateChange(RefactoringCoreMessages.JavaMoveProcessor_change_name) {

	public ChangeDescriptor getDescriptor() {
	return fMovePolicy.getDescriptor();
	}

	public Change perform(IProgressMonitor pm2) throws CoreException {
	Change change= super.perform(pm2);
	Change[] changes= getChildren();
	for (int index= 0; index < changes.length; index++) {
	if (!(changes[index] instanceof TextEditBasedChange))
	return null;
	}
	return change;
	}
	};
	CreateTargetExecutionLog log= null;
	if (fCreateTargetQueries instanceof MonitoringCreateTargetQueries) {
	final MonitoringCreateTargetQueries queries= (MonitoringCreateTargetQueries) fCreateTargetQueries;
	final ICreateTargetQueries delegate= queries.getDelegate();
	if (delegate instanceof LoggedCreateTargetQueries)
	log= queries.getCreateTargetExecutionLog();
	}
	if (log != null) {
	final Object[] selected= log.getSelectedElements();
	for (int index= 0; index < selected.length; index++) {
	result.add(new LoggedCreateTargetChange(selected[index], fCreateTargetQueries));
	}
	}
	Change change= fMovePolicy.createChange(pm);
	if (change instanceof CompositeChange) {
	CompositeChange subComposite= (CompositeChange) change;
	result.merge(subComposite);
	} else {
	result.add(change);
	}
	return result;
	} finally {
	pm.done();
	}
	}

	private String[] getAffectedProjectNatures() throws CoreException {
	String[] jNatures= JavaProcessors.computeAffectedNaturs(fMovePolicy.getJavaElements());
	String[] rNatures= ResourceProcessors.computeAffectedNatures(fMovePolicy.getResources());
	Set result= new HashSet();
	result.addAll(Arrays.asList(jNatures));
	result.addAll(Arrays.asList(rNatures));
	return (String[]) result.toArray(new String[result.size()]);
	}

	public String getComment() {
	return fComment;
	}

	public Object getCommonParentForInputElements() {
	return new ParentChecker(fMovePolicy.getResources(), fMovePolicy.getJavaElements()).getCommonParent();
	}

	public ICreateTargetQuery getCreateTargetQuery() {
	return fMovePolicy.getCreateTargetQuery(fCreateTargetQueries);
	}

	protected Object getDestination() {
	IJavaElement je= fMovePolicy.getJavaElementDestination();
	if (je != null)
	return je;
	return fMovePolicy.getResourceDestination();
	}

	public Object[] getElements() {
	List result= new ArrayList();
	result.addAll(Arrays.asList(fMovePolicy.getJavaElements()));
	result.addAll(Arrays.asList(fMovePolicy.getResources()));
	return result.toArray();
	}

	public String getFilePatterns() {
	return fMovePolicy.getFilePatterns();
	}

	public String getIdentifier() {
	return IDENTIFIER;
	}

	public IJavaElement[] getJavaElements() {
	return fMovePolicy.getJavaElements();
	}

	public String getProcessorName() {
	return RefactoringCoreMessages.MoveRefactoring_0;
	}

	public IResource[] getResources() {
	return fMovePolicy.getResources();
	}

	public boolean getUpdateQualifiedNames() {
	return fMovePolicy.getUpdateQualifiedNames();
	}

	public boolean getUpdateReferences() {
	if (!canUpdateReferences())
	return false;
	return fMovePolicy.getUpdateReferences();
	}

	public boolean hasAllInputSet() {
	return fMovePolicy.hasAllInputSet();
	}

	public boolean hasDestinationSet() {
	return fMovePolicy.getJavaElementDestination() != null \|\| fMovePolicy.getResourceDestination() != null;
	}

	public RefactoringStatus initialize(RefactoringArguments arguments) {
	setReorgQueries(new NullReorgQueries());
	final RefactoringStatus status= new RefactoringStatus();
	if (arguments instanceof JavaRefactoringArguments) {
	final JavaRefactoringArguments extended= (JavaRefactoringArguments) arguments;
	fMovePolicy= ReorgPolicyFactory.createMovePolicy(status, arguments);
	if (fMovePolicy != null && !status.hasFatalError()) {
	final CreateTargetExecutionLog log= ReorgPolicyFactory.loadCreateTargetExecutionLog(status, extended);
	if (log != null && !status.hasFatalError()) {
	fMovePolicy.setDestinationCheck(false);
	fCreateTargetQueries= new MonitoringCreateTargetQueries(new LoggedCreateTargetQueries(log), log);
	}
	status.merge(fMovePolicy.initialize(arguments));
	}
	} else
	return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.InitializableRefactoring_inacceptable_arguments);
	return status;
	}

	public boolean isApplicable() throws CoreException {
	return fMovePolicy.canEnable();
	}

	public boolean isTextualMove() {
	return fMovePolicy.isTextualMove();
	}

	public RefactoringParticipant[] loadParticipants(RefactoringStatus status, SharableParticipants shared) throws CoreException {
	return fMovePolicy.loadParticipants(status, this, getAffectedProjectNatures(), shared);
	}

	public Change postCreateChange(Change[] participantChanges, IProgressMonitor pm) throws CoreException {
	return fMovePolicy.postCreateChange(participantChanges, pm);
	}

	public void setComment(String comment) {
	fComment= comment;
	}

	public void setCreateTargetQueries(ICreateTargetQueries queries) {
	Assert.isNotNull(queries);
	fCreateTargetQueries= new MonitoringCreateTargetQueries(queries, fMovePolicy.getCreateTargetExecutionLog());
	}

	public RefactoringStatus setDestination(IJavaElement destination) throws JavaModelException {
	return fMovePolicy.setDestination(destination);
	}

	public RefactoringStatus setDestination(IResource destination) throws JavaModelException {
	return fMovePolicy.setDestination(destination);
	}

	public void setFilePatterns(String patterns) {
	fMovePolicy.setFilePatterns(patterns);
	}

	public void setReorgQueries(IReorgQueries queries) {
	Assert.isNotNull(queries);
	fReorgQueries= queries;
	}

	public void setUpdateQualifiedNames(boolean update) {
	fMovePolicy.setUpdateQualifiedNames(update);
	}

	public void setUpdateReferences(boolean update) {
	fMovePolicy.setUpdateReferences(update);
	}

	public boolean wasCanceled() {
	return fWasCanceled;
	}
	}