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/*******************************************************************************
* Copyright (c) 2007, 2010 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.context.java;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.context.ReadOnlyOverride;
import org.eclipse.jpt.core.context.java.JavaOverride;
import org.eclipse.jpt.core.context.java.JavaOverrideContainer;
import org.eclipse.jpt.core.context.java.JavaVirtualOverride;
import org.eclipse.jpt.core.internal.context.JptValidator;
import org.eclipse.jpt.core.internal.context.OverrideTextRangeResolver;
import org.eclipse.jpt.core.resource.java.OverrideAnnotation;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.utility.Filter;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.jpt.utility.internal.iterators.FilteringIterator;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
/**
* Specified Java override
*/
public abstract class AbstractJavaOverride<C extends JavaOverrideContainer, A extends OverrideAnnotation>
extends AbstractJavaJpaContextNode
implements JavaOverride
{
protected final A overrideAnnotation;
protected String name;
protected AbstractJavaOverride(C parent, A overrideAnnotation) {
super(parent);
this.overrideAnnotation = overrideAnnotation;
this.name = this.buildName();
}
// ********** synchronize/update **********
@Override
public void synchronizeWithResourceModel() {
super.synchronizeWithResourceModel();
this.setName_(this.buildName());
}
// ********** name **********
public String getName() {
return this.name;
}
/**
* Strip the prefix (if necessary) before storing the name in the context
* model. Pass the unchanged name to the annotation.
*/
public void setName(String name) {
this.overrideAnnotation.setName(name);
this.setName_(this.stripPrefix(name));
}
protected void setName_(String name) {
String old = this.name;
this.name = name;
this.firePropertyChanged(NAME_PROPERTY, old, name);
}
/**
* Strip the prefix (if necessary) from the name taken from the annotation
* before storing it in the context model.
*/
protected String buildName() {
return this.stripPrefix(this.overrideAnnotation.getName());
}
protected String stripPrefix(String rawName) {
if (rawName == null) {
return null;
}
String prefix = this.getPossiblePrefix();
if (prefix == null) {
return rawName;
}
int prefixLength = prefix.length();
if ((rawName.length() > prefixLength) &&
(rawName.charAt(prefixLength) == '.') &&
rawName.startsWith(prefix)) {
return rawName.substring(prefixLength + 1);
}
return rawName;
}
protected String getPossiblePrefix() {
return this.getContainer().getPossiblePrefix();
}
// ********** specified/virtual **********
public boolean isVirtual() {
return false;
}
public JavaVirtualOverride convertToVirtual() {
return this.getContainer().convertOverrideToVirtual(this);
}
// ********** misc **********
@Override
@SuppressWarnings("unchecked")
public C getParent() {
return (C) super.getParent();
}
public C getContainer() {
return this.getParent();
}
public A getOverrideAnnotation() {
return this.overrideAnnotation;
}
protected void initializeFrom(ReadOnlyOverride oldOverride) {
this.setName(this.prefix(oldOverride.getName()));
}
protected void initializeFromVirtual(ReadOnlyOverride virtualOverride) {
this.setName(this.prefix(virtualOverride.getName()));
}
protected String prefix(String oldName) {
if (oldName == null) {
return null;
}
String prefix = this.getWritePrefix();
return (prefix == null) ? oldName : (prefix + '.' + oldName);
}
protected String getWritePrefix() {
return this.getContainer().getWritePrefix();
}
@Override
public void toString(StringBuilder sb) {
sb.append(this.name);
}
// ********** Java completion proposals **********
@Override
public Iterator<String> javaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) {
Iterator<String> result = super.javaCompletionProposals(pos, filter, astRoot);
if (result != null) {
return result;
}
if (this.nameTouches(pos, astRoot)) {
return this.javaCandidateNames(filter);
}
return null;
}
protected boolean nameTouches(int pos, CompilationUnit astRoot) {
return this.overrideAnnotation.nameTouches(pos, astRoot);
}
protected Iterator<String> javaCandidateNames(Filter<String> filter) {
return StringTools.convertToJavaStringLiterals(this.candidateNames(filter));
}
private Iterator<String> candidateNames(Filter<String> filter) {
return new FilteringIterator<String>(this.candidateNames(), filter);
}
protected abstract Iterator<String> candidateNames();
// ********** validation **********
@Override
public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) {
super.validate(messages, reporter, astRoot);
this.buildValidator(astRoot).validate(messages, reporter);
}
protected JptValidator buildValidator(CompilationUnit astRoot) {
return this.getContainer().buildValidator(this, buildTextRangeResolver(astRoot));
}
protected OverrideTextRangeResolver buildTextRangeResolver(CompilationUnit astRoot) {
return new JavaOverrideTextRangeResolver(this, astRoot);
}
public TextRange getValidationTextRange(CompilationUnit astRoot) {
TextRange textRange = this.overrideAnnotation.getTextRange(astRoot);
return (textRange != null) ? textRange : this.getParent().getValidationTextRange(astRoot);
}
public TextRange getNameTextRange(CompilationUnit astRoot) {
TextRange textRange = this.overrideAnnotation.getNameTextRange(astRoot);
return (textRange != null) ? textRange : this.getValidationTextRange(astRoot);
}
}
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