/*******************************************************************************
* Copyright (c) 2006, 2011 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.structure;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.text.edits.MalformedTreeException;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.ltk.core.refactoring.GroupCategorySet;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.core.refactoring.RefactoringStatusContext;
import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IInitializer;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.ISourceRange;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.ITypeHierarchy;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTVisitor;
import org.eclipse.jdt.core.dom.Annotation;
import org.eclipse.jdt.core.dom.AnnotationTypeDeclaration;
import org.eclipse.jdt.core.dom.BodyDeclaration;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.EnumDeclaration;
import org.eclipse.jdt.core.dom.Expression;
import org.eclipse.jdt.core.dom.FieldDeclaration;
import org.eclipse.jdt.core.dom.IExtendedModifier;
import org.eclipse.jdt.core.dom.IMethodBinding;
import org.eclipse.jdt.core.dom.ITypeBinding;
import org.eclipse.jdt.core.dom.Javadoc;
import org.eclipse.jdt.core.dom.MethodDeclaration;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jdt.core.dom.Name;
import org.eclipse.jdt.core.dom.SimpleName;
import org.eclipse.jdt.core.dom.SingleVariableDeclaration;
import org.eclipse.jdt.core.dom.Type;
import org.eclipse.jdt.core.dom.TypeDeclaration;
import org.eclipse.jdt.core.dom.TypeParameter;
import org.eclipse.jdt.core.dom.VariableDeclarationFragment;
import org.eclipse.jdt.core.dom.rewrite.ASTRewrite;
import org.eclipse.jdt.core.dom.rewrite.ITrackedNodePosition;
import org.eclipse.jdt.core.search.IJavaSearchConstants;
import org.eclipse.jdt.core.search.SearchMatch;
import org.eclipse.jdt.core.search.SearchPattern;
import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.dom.ASTNodeFactory;
import org.eclipse.jdt.internal.corext.dom.ASTNodes;
import org.eclipse.jdt.internal.corext.dom.ModifierRewrite;
import org.eclipse.jdt.internal.corext.refactoring.RefactoringAvailabilityTester;
import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
import org.eclipse.jdt.internal.corext.refactoring.RefactoringScopeFactory;
import org.eclipse.jdt.internal.corext.refactoring.RefactoringSearchEngine2;
import org.eclipse.jdt.internal.corext.refactoring.SearchResultGroup;
import org.eclipse.jdt.internal.corext.refactoring.base.JavaStatusContext;
import org.eclipse.jdt.internal.corext.refactoring.reorg.SourceReferenceUtil;
import org.eclipse.jdt.internal.corext.refactoring.structure.constraints.SuperTypeConstraintsModel;
import org.eclipse.jdt.internal.corext.refactoring.structure.constraints.SuperTypeConstraintsSolver;
import org.eclipse.jdt.internal.corext.refactoring.structure.constraints.SuperTypeRefactoringProcessor;
import org.eclipse.jdt.internal.corext.refactoring.util.RefactoringASTParser;
import org.eclipse.jdt.internal.corext.refactoring.util.TextEditBasedChangeManager;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.corext.util.JdtFlags;
import org.eclipse.jdt.internal.corext.util.Messages;
import org.eclipse.jdt.internal.corext.util.SearchUtils;
import org.eclipse.jdt.internal.corext.util.Strings;
import org.eclipse.jdt.ui.JavaElementLabels;
import org.eclipse.jdt.internal.ui.JavaPlugin;
/**
* Partial implementation of a hierarchy refactoring processor used in pull up,
* push down and extract supertype refactorings.
* <p>
* This processor provides common functionality to move members in a type
* hierarchy, and to perform a "Use Supertype" refactoring afterwards.
* </p>
*
* @since 3.2
*/
public abstract class HierarchyProcessor extends SuperTypeRefactoringProcessor {
/**
* AST node visitor which performs the actual mapping.
*/
public static class TypeVariableMapper extends ASTVisitor {
/** The type variable mapping to use */
protected final TypeVariableMaplet[] fMapping;
/** The AST rewrite to use */
protected final ASTRewrite fRewrite;
/**
* Creates a new type variable mapper.
*
* @param rewrite
* The AST rewrite to use
* @param mapping
* The type variable mapping to use
*/
public TypeVariableMapper(final ASTRewrite rewrite, final TypeVariableMaplet[] mapping) {
Assert.isNotNull(rewrite);
Assert.isNotNull(mapping);
fRewrite= rewrite;
fMapping= mapping;
}
@Override
public final boolean visit(final SimpleName node) {
final ITypeBinding binding= node.resolveTypeBinding();
if (binding != null && binding.isTypeVariable()) {
String name= null;
for (int index= 0; index < fMapping.length; index++) {
name= binding.getName();
if (fMapping[index].getSourceName().equals(name) && node.getIdentifier().equals(name)) {
final MethodDeclaration declaration= (MethodDeclaration) ASTNodes.getParent(node, MethodDeclaration.class);
if (declaration != null) {
final IMethodBinding method= declaration.resolveBinding();
if (method != null) {
final ITypeBinding[] bindings= method.getTypeParameters();
for (int offset= 0; offset < bindings.length; offset++) {
if (bindings[offset].isEqualTo(binding))
return true;
}
}
}
fRewrite.set(node, SimpleName.IDENTIFIER_PROPERTY, fMapping[index].getTargetName(), null);
}
}
}
return true;
}
}
protected static boolean areAllFragmentsDeleted(final FieldDeclaration declaration, final List<ASTNode> declarationNodes) {
for (final Iterator<VariableDeclarationFragment> iterator= declaration.fragments().iterator(); iterator.hasNext();) {
if (!declarationNodes.contains(iterator.next()))
return false;
}
return true;
}
protected static RefactoringStatus checkProjectCompliance(CompilationUnitRewrite sourceRewriter, IType destination, IMember[] members) {
RefactoringStatus status= new RefactoringStatus();
if (!JavaModelUtil.is50OrHigher(destination.getJavaProject())) {
for (int index= 0; index < members.length; index++) {
try {
BodyDeclaration decl= ASTNodeSearchUtil.getBodyDeclarationNode(members[index], sourceRewriter.getRoot());
if (decl != null) {
for (final Iterator<IExtendedModifier> iterator= decl.modifiers().iterator(); iterator.hasNext();) {
boolean reported= false;
final IExtendedModifier modifier= iterator.next();
if (!reported && modifier.isAnnotation()) {
status.merge(RefactoringStatus.createErrorStatus(Messages.format(RefactoringCoreMessages.PullUpRefactoring_incompatible_langauge_constructs, new String[] { JavaElementLabels.getTextLabel(members[index], JavaElementLabels.ALL_FULLY_QUALIFIED), JavaElementLabels.getTextLabel(destination, JavaElementLabels.ALL_DEFAULT)}), JavaStatusContext.create(members[index])));
reported= true;
}
}
}
} catch (JavaModelException exception) {
JavaPlugin.log(exception);
}
if (members[index] instanceof IMethod) {
final IMethod method= (IMethod) members[index];
try {
if (Flags.isVarargs(method.getFlags()))
status.merge(RefactoringStatus.createErrorStatus(Messages.format(RefactoringCoreMessages.PullUpRefactoring_incompatible_language_constructs1, new String[] { JavaElementLabels.getTextLabel(members[index], JavaElementLabels.ALL_FULLY_QUALIFIED), JavaElementLabels.getTextLabel(destination, JavaElementLabels.ALL_DEFAULT)}), JavaStatusContext.create(members[index])));
} catch (JavaModelException exception) {
JavaPlugin.log(exception);
}
}
}
}
return status;
}
protected static void copyAnnotations(final FieldDeclaration oldField, final FieldDeclaration newField) {
final AST ast= newField.getAST();
for (int index= 0, n= oldField.modifiers().size(); index < n; index++) {
final IExtendedModifier modifier= (IExtendedModifier) oldField.modifiers().get(index);
final List<IExtendedModifier> modifiers= newField.modifiers();
if (modifier.isAnnotation() && !modifiers.contains(modifier))
modifiers.add(index, (IExtendedModifier) ASTNode.copySubtree(ast, (Annotation) modifier));
}
}
protected static void copyAnnotations(final MethodDeclaration oldMethod, final MethodDeclaration newMethod) {
final AST ast= newMethod.getAST();
for (int index= 0, n= oldMethod.modifiers().size(); index < n; index++) {
final IExtendedModifier modifier= (IExtendedModifier) oldMethod.modifiers().get(index);
final List<IExtendedModifier> modifiers= newMethod.modifiers();
if (modifier.isAnnotation() && !modifiers.contains(modifier))
modifiers.add(index, (IExtendedModifier) ASTNode.copySubtree(ast, (Annotation) modifier));
}
}
protected static void copyJavadocNode(final ASTRewrite rewrite, final BodyDeclaration oldDeclaration, final BodyDeclaration newDeclaration) throws JavaModelException {
final Javadoc predecessor= oldDeclaration.getJavadoc();
if (predecessor != null) {
String newString= ASTNodes.getNodeSource(predecessor, false, true);
if (newString != null) {
newDeclaration.setJavadoc((Javadoc) rewrite.createStringPlaceholder(newString, ASTNode.JAVADOC));
}
}
}
protected static void copyThrownExceptions(final MethodDeclaration oldMethod, final MethodDeclaration newMethod) {
final AST ast= newMethod.getAST();
for (int index= 0, n= oldMethod.thrownExceptions().size(); index < n; index++)
newMethod.thrownExceptions().add(index, ASTNode.copySubtree(ast, (Name) oldMethod.thrownExceptions().get(index)));
}
protected static void copyTypeParameters(final MethodDeclaration oldMethod, final MethodDeclaration newMethod) {
final AST ast= newMethod.getAST();
for (int index= 0, n= oldMethod.typeParameters().size(); index < n; index++)
newMethod.typeParameters().add(index, ASTNode.copySubtree(ast, (TypeParameter) oldMethod.typeParameters().get(index)));
}
protected static String createLabel(final IMember member) {
if (member instanceof IType)
return JavaElementLabels.getTextLabel(member, JavaElementLabels.ALL_FULLY_QUALIFIED);
else if (member instanceof IMethod)
return JavaElementLabels.getTextLabel(member, JavaElementLabels.ALL_FULLY_QUALIFIED);
else if (member instanceof IField)
return JavaElementLabels.getTextLabel(member, JavaElementLabels.ALL_FULLY_QUALIFIED);
else if (member instanceof IInitializer)
return RefactoringCoreMessages.HierarchyRefactoring_initializer;
Assert.isTrue(false);
return null;
}
protected static FieldDeclaration createNewFieldDeclarationNode(final ASTRewrite rewrite, final CompilationUnit unit, final IField field, final VariableDeclarationFragment oldFieldFragment, final TypeVariableMaplet[] mapping, final IProgressMonitor monitor, final RefactoringStatus status, final int modifiers) throws JavaModelException {
final VariableDeclarationFragment newFragment= rewrite.getAST().newVariableDeclarationFragment();
newFragment.setExtraDimensions(oldFieldFragment.getExtraDimensions());
if (oldFieldFragment.getInitializer() != null) {
Expression newInitializer= null;
if (mapping.length > 0)
newInitializer= createPlaceholderForExpression(oldFieldFragment.getInitializer(), field.getCompilationUnit(), mapping, rewrite);
else
newInitializer= createPlaceholderForExpression(oldFieldFragment.getInitializer(), field.getCompilationUnit(), rewrite);
newFragment.setInitializer(newInitializer);
}
newFragment.setName(((SimpleName) ASTNode.copySubtree(rewrite.getAST(), oldFieldFragment.getName())));
final FieldDeclaration newField= rewrite.getAST().newFieldDeclaration(newFragment);
final FieldDeclaration oldField= ASTNodeSearchUtil.getFieldDeclarationNode(field, unit);
copyJavadocNode(rewrite, oldField, newField);
copyAnnotations(oldField, newField);
newField.modifiers().addAll(ASTNodeFactory.newModifiers(rewrite.getAST(), modifiers));
final Type oldType= oldField.getType();
Type newType= null;
if (mapping.length > 0) {
newType= createPlaceholderForType(oldType, field.getCompilationUnit(), mapping, rewrite);
} else
newType= createPlaceholderForType(oldType, field.getCompilationUnit(), rewrite);
newField.setType(newType);
return newField;
}
protected static Expression createPlaceholderForExpression(final Expression expression, final ICompilationUnit declaringCu, final ASTRewrite rewrite) throws JavaModelException {
return (Expression) rewrite.createStringPlaceholder(declaringCu.getBuffer().getText(expression.getStartPosition(), expression.getLength()), ASTNode.METHOD_INVOCATION);
}
protected static Expression createPlaceholderForExpression(final Expression expression, final ICompilationUnit declaringCu, final TypeVariableMaplet[] mapping, final ASTRewrite rewrite) throws JavaModelException {
Expression result= null;
try {
final IDocument document= new Document(declaringCu.getBuffer().getContents());
final ASTRewrite rewriter= ASTRewrite.create(expression.getAST());
final ITrackedNodePosition position= rewriter.track(expression);
expression.accept(new TypeVariableMapper(rewriter, mapping));
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.NONE);
result= (Expression) rewrite.createStringPlaceholder(document.get(position.getStartPosition(), position.getLength()), ASTNode.METHOD_INVOCATION);
} catch (MalformedTreeException exception) {
JavaPlugin.log(exception);
} catch (BadLocationException exception) {
JavaPlugin.log(exception);
}
return result;
}
protected static BodyDeclaration createPlaceholderForProtectedTypeDeclaration(final BodyDeclaration bodyDeclaration, final CompilationUnit declaringCuNode, final ICompilationUnit declaringCu, final ASTRewrite rewrite, final boolean removeIndentation) throws JavaModelException {
String text= null;
try {
final ASTRewrite rewriter= ASTRewrite.create(bodyDeclaration.getAST());
ModifierRewrite.create(rewriter, bodyDeclaration).setVisibility(Modifier.PROTECTED, null);
final ITrackedNodePosition position= rewriter.track(bodyDeclaration);
final IDocument document= new Document(declaringCu.getBuffer().getText(declaringCuNode.getStartPosition(), declaringCuNode.getLength()));
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.UPDATE_REGIONS);
text= document.get(position.getStartPosition(), position.getLength());
} catch (BadLocationException exception) {
text= getNewText(bodyDeclaration, declaringCu, removeIndentation);
}
return (BodyDeclaration) rewrite.createStringPlaceholder(text, ASTNode.TYPE_DECLARATION);
}
protected static BodyDeclaration createPlaceholderForProtectedTypeDeclaration(final BodyDeclaration bodyDeclaration, final CompilationUnit declaringCuNode, final ICompilationUnit declaringCu, final TypeVariableMaplet[] mapping, final ASTRewrite rewrite, final boolean removeIndentation) throws JavaModelException {
BodyDeclaration result= null;
try {
final IDocument document= new Document(declaringCu.getBuffer().getContents());
final ASTRewrite rewriter= ASTRewrite.create(bodyDeclaration.getAST());
final ITrackedNodePosition position= rewriter.track(bodyDeclaration);
bodyDeclaration.accept(new TypeVariableMapper(rewriter, mapping) {
@Override
public final boolean visit(final AnnotationTypeDeclaration node) {
ModifierRewrite.create(fRewrite, bodyDeclaration).setVisibility(Modifier.PROTECTED, null);
return true;
}
@Override
public final boolean visit(final EnumDeclaration node) {
ModifierRewrite.create(fRewrite, bodyDeclaration).setVisibility(Modifier.PROTECTED, null);
return true;
}
@Override
public final boolean visit(final TypeDeclaration node) {
ModifierRewrite.create(fRewrite, bodyDeclaration).setVisibility(Modifier.PROTECTED, null);
return true;
}
});
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.NONE);
result= (BodyDeclaration) rewrite.createStringPlaceholder(document.get(position.getStartPosition(), position.getLength()), ASTNode.TYPE_DECLARATION);
} catch (MalformedTreeException exception) {
JavaPlugin.log(exception);
} catch (BadLocationException exception) {
JavaPlugin.log(exception);
}
return result;
}
protected static SingleVariableDeclaration createPlaceholderForSingleVariableDeclaration(final SingleVariableDeclaration declaration, final ICompilationUnit declaringCu, final ASTRewrite rewrite) throws JavaModelException {
return (SingleVariableDeclaration) rewrite.createStringPlaceholder(declaringCu.getBuffer().getText(declaration.getStartPosition(), declaration.getLength()), ASTNode.SINGLE_VARIABLE_DECLARATION);
}
protected static SingleVariableDeclaration createPlaceholderForSingleVariableDeclaration(final SingleVariableDeclaration declaration, final ICompilationUnit declaringCu, final TypeVariableMaplet[] mapping, final ASTRewrite rewrite) throws JavaModelException {
SingleVariableDeclaration result= null;
try {
final IDocument document= new Document(declaringCu.getBuffer().getContents());
final ASTRewrite rewriter= ASTRewrite.create(declaration.getAST());
final ITrackedNodePosition position= rewriter.track(declaration);
declaration.accept(new TypeVariableMapper(rewriter, mapping));
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.NONE);
result= (SingleVariableDeclaration) rewrite.createStringPlaceholder(document.get(position.getStartPosition(), position.getLength()), ASTNode.SINGLE_VARIABLE_DECLARATION);
} catch (MalformedTreeException exception) {
JavaPlugin.log(exception);
} catch (BadLocationException exception) {
JavaPlugin.log(exception);
}
return result;
}
protected static Type createPlaceholderForType(final Type type, final ICompilationUnit declaringCu, final ASTRewrite rewrite) throws JavaModelException {
return (Type) rewrite.createStringPlaceholder(declaringCu.getBuffer().getText(type.getStartPosition(), type.getLength()), ASTNode.SIMPLE_TYPE);
}
protected static Type createPlaceholderForType(final Type type, final ICompilationUnit declaringCu, final TypeVariableMaplet[] mapping, final ASTRewrite rewrite) throws JavaModelException {
Type result= null;
try {
final IDocument document= new Document(declaringCu.getBuffer().getContents());
final ASTRewrite rewriter= ASTRewrite.create(type.getAST());
final ITrackedNodePosition position= rewriter.track(type);
type.accept(new TypeVariableMapper(rewriter, mapping));
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.NONE);
result= (Type) rewrite.createStringPlaceholder(document.get(position.getStartPosition(), position.getLength()), ASTNode.SIMPLE_TYPE);
} catch (MalformedTreeException exception) {
JavaPlugin.log(exception);
} catch (BadLocationException exception) {
JavaPlugin.log(exception);
}
return result;
}
protected static BodyDeclaration createPlaceholderForTypeDeclaration(final BodyDeclaration bodyDeclaration, final ICompilationUnit declaringCu, final ASTRewrite rewrite, final boolean removeIndentation) throws JavaModelException {
return (BodyDeclaration) rewrite.createStringPlaceholder(getNewText(bodyDeclaration, declaringCu, removeIndentation), ASTNode.TYPE_DECLARATION);
}
protected static BodyDeclaration createPlaceholderForTypeDeclaration(final BodyDeclaration bodyDeclaration, final ICompilationUnit declaringCu, final TypeVariableMaplet[] mapping, final ASTRewrite rewrite, final boolean removeIndentation) throws JavaModelException {
BodyDeclaration result= null;
try {
final IDocument document= new Document(declaringCu.getBuffer().getContents());
final ASTRewrite rewriter= ASTRewrite.create(bodyDeclaration.getAST());
final ITrackedNodePosition position= rewriter.track(bodyDeclaration);
bodyDeclaration.accept(new TypeVariableMapper(rewriter, mapping));
rewriter.rewriteAST(document, declaringCu.getJavaProject().getOptions(true)).apply(document, TextEdit.NONE);
result= (BodyDeclaration) rewrite.createStringPlaceholder(document.get(position.getStartPosition(), position.getLength()), ASTNode.TYPE_DECLARATION);
} catch (MalformedTreeException exception) {
JavaPlugin.log(exception);
} catch (BadLocationException exception) {
JavaPlugin.log(exception);
}
return result;
}
protected static void deleteDeclarationNodes(final CompilationUnitRewrite sourceRewriter, final boolean sameCu, final CompilationUnitRewrite unitRewriter, final List<IMember> members, final GroupCategorySet set) throws JavaModelException {
final List<ASTNode> declarationNodes= getDeclarationNodes(unitRewriter.getRoot(), members);
for (final Iterator<ASTNode> iterator= declarationNodes.iterator(); iterator.hasNext();) {
final ASTNode node= iterator.next();
final ASTRewrite rewriter= unitRewriter.getASTRewrite();
final ImportRemover remover= unitRewriter.getImportRemover();
if (node instanceof VariableDeclarationFragment) {
if (node.getParent() instanceof FieldDeclaration) {
final FieldDeclaration declaration= (FieldDeclaration) node.getParent();
if (areAllFragmentsDeleted(declaration, declarationNodes)) {
rewriter.remove(declaration, unitRewriter.createCategorizedGroupDescription(RefactoringCoreMessages.HierarchyRefactoring_remove_member, set));
if (!sameCu)
remover.registerRemovedNode(declaration);
} else {
rewriter.remove(node, unitRewriter.createCategorizedGroupDescription(RefactoringCoreMessages.HierarchyRefactoring_remove_member, set));
if (!sameCu)
remover.registerRemovedNode(node);
}
}
} else {
rewriter.remove(node, unitRewriter.createCategorizedGroupDescription(RefactoringCoreMessages.HierarchyRefactoring_remove_member, set));
if (!sameCu)
remover.registerRemovedNode(node);
}
}
}
protected static List<ASTNode> getDeclarationNodes(final CompilationUnit cuNode, final List<IMember> members) throws JavaModelException {
final List<ASTNode> result= new ArrayList<ASTNode>(members.size());
for (final Iterator<IMember> iterator= members.iterator(); iterator.hasNext();) {
final IMember member= iterator.next();
ASTNode node= null;
if (member instanceof IField) {
if (Flags.isEnum(member.getFlags()))
node= ASTNodeSearchUtil.getEnumConstantDeclaration((IField) member, cuNode);
else
node= ASTNodeSearchUtil.getFieldDeclarationFragmentNode((IField) member, cuNode);
} else if (member instanceof IType)
node= ASTNodeSearchUtil.getAbstractTypeDeclarationNode((IType) member, cuNode);
else if (member instanceof IMethod)
node= ASTNodeSearchUtil.getMethodDeclarationNode((IMethod) member, cuNode);
if (node != null)
result.add(node);
}
return result;
}
protected static String getNewText(final ASTNode node, final ICompilationUnit declaringCu, final boolean removeIndentation) throws JavaModelException {
final String result= declaringCu.getBuffer().getText(node.getStartPosition(), node.getLength());
if (removeIndentation)
return getUnindentedText(result, declaringCu);
return result;
}
protected static String getUnindentedText(final String text, final ICompilationUnit declaringCu) throws JavaModelException {
final String[] lines= Strings.convertIntoLines(text);
Strings.trimIndentation(lines, declaringCu.getJavaProject(), false);
return Strings.concatenate(lines, StubUtility.getLineDelimiterUsed(declaringCu));
}
/** The cached declaring type */
protected IType fCachedDeclaringType;
/** The cached member references */
protected final Map<IMember, Object[]> fCachedMembersReferences= new HashMap<IMember, Object[]>(2);
/** The cached type references */
protected IType[] fCachedReferencedTypes;
/** The text edit based change manager */
protected TextEditBasedChangeManager fChangeManager;
/** Does the refactoring use a working copy layer? */
protected final boolean fLayer;
/** The members to move (may be in working copies) */
protected IMember[] fMembersToMove;
/**
* Creates a new hierarchy processor.
*
* @param members
* the members, or <code>null</code> if invoked by scripting
* @param settings
* the code generation settings to use
* @param layer
* <code>true</code> to create a working copy layer,
* <code>false</code> otherwise
*/
protected HierarchyProcessor(final IMember[] members, final CodeGenerationSettings settings, boolean layer) {
super(settings);
fLayer= layer;
if (members != null) {
fMembersToMove= (IMember[]) SourceReferenceUtil.sortByOffset(members);
if (layer && fMembersToMove.length > 0) {
final ICompilationUnit original= fMembersToMove[0].getCompilationUnit();
if (original != null) {
try {
final ICompilationUnit copy= getSharedWorkingCopy(original.getPrimary(), new NullProgressMonitor());
if (copy != null) {
for (int index= 0; index < fMembersToMove.length; index++) {
final IJavaElement[] elements= copy.findElements(fMembersToMove[index]);
if (elements != null && elements.length > 0 && elements[0] instanceof IMember) {
fMembersToMove[index]= (IMember) elements[0];
}
}
}
} catch (JavaModelException exception) {
JavaPlugin.log(exception);
}
}
}
}
}
protected boolean canBeAccessedFrom(final IMember member, final IType target, final ITypeHierarchy hierarchy) throws JavaModelException {
Assert.isTrue(!(member instanceof IInitializer));
return member.exists();
}
protected RefactoringStatus checkConstructorCalls(final IType type, final IProgressMonitor monitor) throws JavaModelException {
try {
monitor.beginTask(RefactoringCoreMessages.PullUpRefactoring_checking, 2);
final RefactoringStatus result= new RefactoringStatus();
final SearchResultGroup[] groups= ConstructorReferenceFinder.getConstructorReferences(type, fOwner, new SubProgressMonitor(monitor, 1), result);
final String message= Messages.format(RefactoringCoreMessages.HierarchyRefactoring_gets_instantiated, new Object[] { JavaElementLabels.getTextLabel(type, JavaElementLabels.ALL_FULLY_QUALIFIED)});
ICompilationUnit unit= null;
for (int index= 0; index < groups.length; index++) {
unit= groups[index].getCompilationUnit();
if (unit != null) {
final CompilationUnit cuNode= RefactoringASTParser.parseWithASTProvider(unit, false, new SubProgressMonitor(monitor, 1));
final ASTNode[] references= ASTNodeSearchUtil.getAstNodes(groups[index].getSearchResults(), cuNode);
ASTNode node= null;
for (int offset= 0; offset < references.length; offset++) {
node= references[offset];
if ((node instanceof ClassInstanceCreation) || ConstructorReferenceFinder.isImplicitConstructorReferenceNodeInClassCreations(node)) {
final RefactoringStatusContext context= JavaStatusContext.create(unit, node);
result.addError(message, context);
}
}
}
}
return result;
} finally {
monitor.done();
}
}
protected RefactoringStatus checkDeclaringType(final IProgressMonitor monitor) throws JavaModelException {
try {
final IType type= getDeclaringType();
if (type.isEnum())
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.HierarchyRefactoring_enum_members);
if (type.isAnnotation())
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.HierarchyRefactoring_annotation_members);
if (type.isInterface())
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.HierarchyRefactoring_interface_members);
if (type.isBinary())
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.HierarchyRefactoring_members_of_binary);
if (type.isReadOnly())
return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.HierarchyRefactoring_members_of_read_only);
return new RefactoringStatus();
} finally {
if (monitor != null)
monitor.done();
}
}
protected RefactoringStatus checkIfMembersExist() {
final RefactoringStatus result= new RefactoringStatus();
IMember member= null;
for (int index= 0; index < fMembersToMove.length; index++) {
member= fMembersToMove[index];
if (member == null || !member.exists())
result.addFatalError(RefactoringCoreMessages.HierarchyRefactoring_does_not_exist);
}
return result;
}
protected void clearCaches() {
fCachedReferencedTypes= null;
}
protected void copyParameters(final ASTRewrite rewrite, final ICompilationUnit unit, final MethodDeclaration oldMethod, final MethodDeclaration newMethod, final TypeVariableMaplet[] mapping) throws JavaModelException {
SingleVariableDeclaration newDeclaration= null;
for (int index= 0, size= oldMethod.parameters().size(); index < size; index++) {
final SingleVariableDeclaration oldDeclaration= (SingleVariableDeclaration) oldMethod.parameters().get(index);
if (mapping.length > 0)
newDeclaration= createPlaceholderForSingleVariableDeclaration(oldDeclaration, unit, mapping, rewrite);
else
newDeclaration= createPlaceholderForSingleVariableDeclaration(oldDeclaration, unit, rewrite);
newMethod.parameters().add(index, newDeclaration);
}
}
protected void copyReturnType(final ASTRewrite rewrite, final ICompilationUnit unit, final MethodDeclaration oldMethod, final MethodDeclaration newMethod, final TypeVariableMaplet[] mapping) throws JavaModelException {
Type newReturnType= null;
if (mapping.length > 0)
newReturnType= createPlaceholderForType(oldMethod.getReturnType2(), unit, mapping, rewrite);
else
newReturnType= createPlaceholderForType(oldMethod.getReturnType2(), unit, rewrite);
newMethod.setReturnType2(newReturnType);
}
@Override
protected SuperTypeConstraintsSolver createContraintSolver(final SuperTypeConstraintsModel model) {
return new SuperTypeConstraintsSolver(model);
}
public IType getDeclaringType() {
if (fCachedDeclaringType != null)
return fCachedDeclaringType;
fCachedDeclaringType= RefactoringAvailabilityTester.getTopLevelType(fMembersToMove);
if (fCachedDeclaringType == null)
fCachedDeclaringType= fMembersToMove[0].getDeclaringType();
return fCachedDeclaringType;
}
public IMember[] getMembersToMove() {
return fMembersToMove;
}
protected IType[] getTypesReferencedInMovedMembers(final IProgressMonitor monitor) throws JavaModelException {
if (fCachedReferencedTypes == null) {
final IType[] types= ReferenceFinderUtil.getTypesReferencedIn(fMembersToMove, fOwner, monitor);
final List<IType> result= new ArrayList<IType>(types.length);
final List<IMember> members= Arrays.asList(fMembersToMove);
for (int index= 0; index < types.length; index++) {
if (!members.contains(types[index]) && !types[index].equals(getDeclaringType()))
result.add(types[index]);
}
fCachedReferencedTypes= new IType[result.size()];
result.toArray(fCachedReferencedTypes);
}
return fCachedReferencedTypes;
}
protected boolean hasNonMovedReferences(final IMember member, final IProgressMonitor monitor, final RefactoringStatus status) throws JavaModelException {
if (!fCachedMembersReferences.containsKey(member)) {
final RefactoringSearchEngine2 engine= new RefactoringSearchEngine2(SearchPattern.createPattern(member, IJavaSearchConstants.REFERENCES, SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE));
engine.setFiltering(true, true);
engine.setStatus(status);
engine.setOwner(fOwner);
engine.setScope(RefactoringScopeFactory.create(member));
engine.searchPattern(new SubProgressMonitor(monitor, 1));
fCachedMembersReferences.put(member, engine.getResults());
}
final SearchResultGroup[] groups= (SearchResultGroup[]) fCachedMembersReferences.get(member);
if (groups.length == 0)
return false;
else if (groups.length > 1)
return true;
final ICompilationUnit unit= groups[0].getCompilationUnit();
if (!getDeclaringType().getCompilationUnit().equals(unit))
return true;
final SearchMatch[] matches= groups[0].getSearchResults();
for (int index= 0; index < matches.length; index++) {
if (!isMovedReference(matches[index]))
return true;
}
return false;
}
protected boolean isMovedReference(final SearchMatch match) throws JavaModelException {
ISourceRange range= null;
for (int index= 0; index < fMembersToMove.length; index++) {
range= fMembersToMove[index].getSourceRange();
if (range.getOffset() <= match.getOffset() && range.getOffset() + range.getLength() >= match.getOffset())
return true;
}
return false;
}
@Override
public RefactoringParticipant[] loadParticipants(final RefactoringStatus status, final SharableParticipants sharedParticipants) throws CoreException {
return new RefactoringParticipant[0];
}
protected boolean needsVisibilityAdjustment(final IMember member, final boolean references, final IProgressMonitor monitor, final RefactoringStatus status) throws JavaModelException {
if (JdtFlags.isPublic(member) || JdtFlags.isProtected(member))
return false;
if (!references)
return true;
return hasNonMovedReferences(member, monitor, status);
}
}