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/*******************************************************************************
* Copyright (c) 2005, 2007 committers of openArchitectureWare 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:
* committers of openArchitectureWare - initial API and implementation
*******************************************************************************/
package org.eclipse.xtend.shared.ui;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.ElementChangedEvent;
import org.eclipse.jdt.core.IElementChangedListener;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.xtend.shared.ui.internal.XtendLog;
import org.eclipse.xtend.typesystem.MetaModel;
public class MetamodelContainer implements IElementChangedListener, IResourceChangeListener {
List<IJavaProject> projects;
boolean changed = false;
private Set<MetaModel> metaModels;
Set<IResource> resources;
public MetamodelContainer(final List<IJavaProject> project, final Set<IResource> resource, final Set<MetaModel> metamodels) {
projects = project;
metaModels = metamodels;
resources = resource;
}
public void elementChanged(final ElementChangedEvent event) {
for (final Iterator<IJavaProject> iter = projects.iterator(); !changed && iter.hasNext();) {
final IJavaProject project = iter.next();
if (project.isOnClasspath(event.getDelta().getElement())) {
changed = true;
}
}
}
public boolean hasChanged() {
return changed;
}
public Set<MetaModel> getMetaModels() {
return metaModels;
}
public void resourceChanged(final IResourceChangeEvent event) {
if (changed)
return;
// we are only interested in POST_CHANGE events
if (event.getType() != IResourceChangeEvent.POST_CHANGE)
return;
final IResourceDelta rootDelta = event.getDelta();
try {
rootDelta.accept(new IResourceDeltaVisitor() {
public boolean visit(final IResourceDelta delta) throws CoreException {
if (!changed && delta.getResource() != null) {
if (resources.contains(delta.getResource())) {
changed = true;
}
if (delta.getResource() instanceof IProject) {
for (final Iterator<IJavaProject> iter = projects.iterator(); !changed && iter.hasNext();) {
final IJavaProject project = iter.next();
if (project.getProject().equals(delta.getResource())) {
changed = true;
}
}
}
}
return true;
}
});
} catch (final CoreException e) {
XtendLog.logError(e);
}
}
}
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