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/*******************************************************************************
* Copyright (c) 2007, 2008 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.core.internal.resource.java;
import java.util.List;
import org.eclipse.jdt.core.dom.ASTVisitor;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.MarkerAnnotation;
import org.eclipse.jdt.core.dom.MemberValuePair;
import org.eclipse.jdt.core.dom.NormalAnnotation;
import org.eclipse.jdt.core.dom.SingleMemberAnnotation;
import org.eclipse.jpt.core.internal.utility.jdt.JDTTools;
import org.eclipse.jpt.core.resource.java.Annotation;
import org.eclipse.jpt.core.resource.java.ContainerAnnotation;
import org.eclipse.jpt.core.resource.java.NestableAnnotation;
import org.eclipse.jpt.utility.internal.CollectionTools;
public class ContainerAnnotationTools
{
public static NestableAnnotation addNestedAnnotation(int index, ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
int size = containerAnnotation.nestedAnnotationsSize();
NestableAnnotation nestedAnnotation = containerAnnotation.addInternal(size);
nestedAnnotation.newAnnotation();
containerAnnotation.moveInternal(index, size);
synchAnnotationsAfterMove(index, size, containerAnnotation);
return nestedAnnotation;
}
/**
* synchronize the source annotations with the model nestableAnnotations,
* starting at the end of the list to prevent overlap
*/
public static void synchAnnotationsAfterAdd(int index, ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
List<NestableAnnotation> nestableAnnotations = CollectionTools.list(containerAnnotation.nestedAnnotations());
for (int i = nestableAnnotations.size(); i-- > index;) {
synch(nestableAnnotations.get(i), i);
}
}
/**
* synchronize the source annotations with the model nestableAnnotations,
* starting at the specified index to prevent overlap
*/
public static void synchAnnotationsAfterRemove(int index, ContainerAnnotation<? extends NestableAnnotation> pluralAnnotation) {
List<NestableAnnotation> nestableAnnotations = CollectionTools.list(pluralAnnotation.nestedAnnotations());
for (int i = index; i < nestableAnnotations.size(); i++) {
synch(nestableAnnotations.get(i), i);
}
}
private static void synch(NestableAnnotation nestableAnnotation, int index) {
nestableAnnotation.moveAnnotation(index);
}
/**
* synchronize the annotations with the model nestableAnnotations
*/
public static void synchAnnotationsAfterMove(int targetIndex, int sourceIndex, ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
NestableAnnotation nestableAnnotation = containerAnnotation.nestedAnnotationAt(targetIndex);
synch(nestableAnnotation, containerAnnotation.nestedAnnotationsSize());
List<NestableAnnotation> nestableAnnotations = CollectionTools.list(containerAnnotation.nestedAnnotations());
if (sourceIndex < targetIndex) {
for (int i = sourceIndex; i < targetIndex; i++) {
synch(nestableAnnotations.get(i), i);
}
}
else {
for (int i = sourceIndex; i > targetIndex; i-- ) {
synch(nestableAnnotations.get(i), i);
}
}
synch(nestableAnnotation, targetIndex);
}
public static void initializeNestedAnnotations(CompilationUnit astRoot, ContainerAnnotation<?> containerAnnotation) {
addAnnotationsFromSource(astRoot, containerAnnotation);
}
private static void addAnnotationsFromSource(CompilationUnit astRoot, ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
containerAnnotation.getJdtAnnotation(astRoot).accept(initialJavaMemberAnnotationAstVisitor(astRoot, containerAnnotation));
}
/**
* Only visit the member value pair with the given element name.
* If there is no element name (like in the case of value elements)
* then we will visit all annotations with the annotation name inside
* the given container annotation
*/
private static ASTVisitor initialJavaMemberAnnotationAstVisitor(final CompilationUnit astRoot, final ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
return new ASTVisitor() {
@Override
public boolean visit(MemberValuePair node) {
return node.getName().getFullyQualifiedName().equals(containerAnnotation.getElementName());
}
@Override
public boolean visit(SingleMemberAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
@Override
public boolean visit(NormalAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
@Override
public boolean visit(MarkerAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
private boolean visit(org.eclipse.jdt.core.dom.Annotation node) {
if (containerAnnotation.getAnnotationName().equals(JDTTools.resolveAnnotation(node))) {
return true;
}
if (containerAnnotation.getNestableAnnotationName().equals(JDTTools.resolveAnnotation(node))) {
Annotation nestedAnnotation = containerAnnotation.addInternal(containerAnnotation.nestedAnnotationsSize());
nestedAnnotation.initialize(astRoot);
}
return false;
}
};
}
public static void updateNestedAnnotationsFromJava(CompilationUnit astRoot, ContainerAnnotation<?> containerAnnotation) {
addOrUpdateAnnotationInSource(astRoot, containerAnnotation);
//TODO not sure how to handle generics here and get rid of this warning
removeAnnotationsNotInSource(astRoot, (ContainerAnnotation<NestableAnnotation>) containerAnnotation);
}
private static void addOrUpdateAnnotationInSource(CompilationUnit astRoot, ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
containerAnnotation.getJdtAnnotation(astRoot).accept(javaMemberAnnotationAstVisitor(astRoot, containerAnnotation));
}
private static void removeAnnotationsNotInSource(CompilationUnit astRoot, ContainerAnnotation<NestableAnnotation> containerAnnotation) {
for (NestableAnnotation annotation : CollectionTools.iterable(containerAnnotation.nestedAnnotations())) {
if (annotation.getJdtAnnotation(astRoot) == null) {
containerAnnotation.remove(annotation);
}
}
}
/**
* Only visit the member value pair with the given element name.
* If there is no element name (like in the case of value elements)
* then we will visit all annotations with the annotation name inside
* the given container annotation
*/
private static ASTVisitor javaMemberAnnotationAstVisitor(final CompilationUnit astRoot, final ContainerAnnotation<? extends NestableAnnotation> containerAnnotation) {
return new ASTVisitor() {
@Override
public boolean visit(MemberValuePair node) {
return node.getName().getFullyQualifiedName().equals(containerAnnotation.getElementName());
}
@Override
public boolean visit(SingleMemberAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
@Override
public boolean visit(NormalAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
@Override
public boolean visit(MarkerAnnotation node) {
return visit((org.eclipse.jdt.core.dom.Annotation) node);
}
private boolean visit(org.eclipse.jdt.core.dom.Annotation node) {
if (containerAnnotation.getAnnotationName().equals(JDTTools.resolveAnnotation(node))) {
return true;
}
if (containerAnnotation.getNestableAnnotationName().equals(JDTTools.resolveAnnotation(node))) {
NestableAnnotation nestedAnnotation = containerAnnotation.nestedAnnotationFor(node);
if (nestedAnnotation != null) {
nestedAnnotation.updateFromJava(astRoot);
}
else {
nestedAnnotation = containerAnnotation.add(containerAnnotation.nestedAnnotationsSize());
nestedAnnotation.initialize(astRoot);
}
}
return false;
}
};
}
}
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