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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.core.builder;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.resources.IResourceVisitor;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.resources.IncrementalProjectBuilder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.internal.core.JarPackageFragmentRoot;
import org.eclipse.xtend.shared.ui.Activator;
import org.eclipse.xtend.shared.ui.ResourceContributor;
import org.eclipse.xtend.shared.ui.core.IXtendXpandProject;
import org.eclipse.xtend.shared.ui.core.IXtendXpandResource;
import org.eclipse.xtend.shared.ui.core.internal.JDTUtil;
import org.eclipse.xtend.shared.ui.core.internal.ResourceID;
import org.eclipse.xtend.shared.ui.internal.XtendLog;
public class XtendXpandBuilder extends IncrementalProjectBuilder {
class OawDeltaVisitor implements IResourceDeltaVisitor, IResourceVisitor {
private IProgressMonitor monitor;
private Set<String> extensions;
public OawDeltaVisitor(final IProgressMonitor monitor) {
this.monitor = monitor;
extensions = new HashSet<String>();
ResourceContributor[] contributors = Activator.getRegisteredResourceContributors();
for (ResourceContributor resourceContributor : contributors) {
extensions.add(resourceContributor.getFileExtension());
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
*/
public boolean visit(final IResourceDelta delta) throws CoreException {
final IResource resource = delta.getResource();
if (isOawResource(resource)) {
switch (delta.getKind()) {
case IResourceDelta.ADDED:
// handle added resource
XtendXpandMarkerManager.deleteMarkers((IFile) resource);
reloadResource((IFile) resource);
break;
case IResourceDelta.REMOVED:
// handle removed resource
handleRemovement((IFile) resource);
break;
case IResourceDelta.CHANGED:
// handle changed resource
reloadResource((IFile) resource);
break;
}
}
monitor.worked(1);
return true;
}
private boolean isOawResource(final IResource resource) {
return resource instanceof IFile && extensions.contains(((IFile) resource).getFileExtension())
&& isOnJavaClassPath(resource);
}
public boolean visit(final IResource resource) {
if (isOawResource(resource)) {
reloadResource((IFile) resource);
}
monitor.worked(1);
return true;
}
}
boolean isOnJavaClassPath(final IResource resource) {
final IJavaProject jp = JavaCore.create(resource.getProject());
if (jp != null)
return jp.isOnClasspath(resource);
return false;
}
public static final String getBUILDER_ID() {
return Activator.getId() + ".xtendBuilder";
}
private Set<IXtendXpandResource> toAnalyze = null;
/*
* (non-Javadoc)
*
* @see org.eclipse.core.internal.events.InternalBuilder#build(int,
* java.util.Map, org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
protected IProject[] build(final int kind, final Map args, final IProgressMonitor monitor) throws CoreException {
toAnalyze = new HashSet<IXtendXpandResource>();
try {
if (kind == FULL_BUILD) {
fullBuild(monitor);
} else {
final IResourceDelta delta = getDelta(getProject());
if (delta == null) {
fullBuild(monitor);
} else {
incrementalBuild(delta, monitor);
}
}
} catch (final Throwable e) {
e.printStackTrace();
}
for (final Iterator<?> iter = toAnalyze.iterator(); iter.hasNext();) {
final IXtendXpandResource res = (IXtendXpandResource) iter.next();
res.analyze();
}
IXtendXpandProject p = Activator.getExtXptModelManager().findProject(getProject());
p.analyze(monitor);
return null;
}
void reloadResource(final IFile resource) {
if (resource.exists()) {
final IXtendXpandProject project = Activator.getExtXptModelManager().findProject(resource);
if (project != null) {
final IXtendXpandResource r = project.findOawResource(resource);
if (r != null) {
if (r.refresh())
resource.getLocalTimeStamp();
toAnalyze.add(r);
}
}
}
}
public void handleRemovement(final IFile resource) {
final IXtendXpandProject project = Activator.getExtXptModelManager().findProject(resource);
if (project != null) {
project.unregisterOawResource(project.findOawResource(resource));
} else {
XtendLog.logInfo("No oaw project found for " + resource.getProject().getName());
}
}
protected void fullBuild(final IProgressMonitor monitor) throws CoreException {
final IXtendXpandProject project = Activator.getExtXptModelManager().findProject(getProject().getFullPath());
if (project != null) {
getProject().accept(new OawDeltaVisitor(monitor));
IJavaProject jp = JavaCore.create(getProject());
IPackageFragmentRoot[] roots = jp.getPackageFragmentRoots();
Set<String> extensions = new HashSet<String>();
ResourceContributor[] contributors = Activator.getRegisteredResourceContributors();
for (ResourceContributor resourceContributor : contributors) {
extensions.add(resourceContributor.getFileExtension());
}
for (int i = 0; i < roots.length; i++) {
IPackageFragmentRoot root = roots[i];
if (root.isArchive()) {
root.open(monitor);
try {
ZipFile zip = ((JarPackageFragmentRoot) root).getJar();
Enumeration<? extends ZipEntry> entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
for (String ext : extensions) {
String name = entry.getName();
if (name.endsWith(ext)) {
String fqn = name.substring(0, name.length() - ext.length() - 1).replaceAll("/", "::");
ResourceID resourceID = new ResourceID(fqn, ext);
IStorage findStorage = JDTUtil.loadFromJar(resourceID, root);
project.findOawResource(findStorage);
}
}
}
} finally {
root.close();
}
}
}
} else {
XtendLog.logInfo("Couldn't create oawproject for project " + getProject().getName());
}
}
protected void incrementalBuild(final IResourceDelta delta, final IProgressMonitor monitor) throws CoreException {
final OawDeltaVisitor visitor = new OawDeltaVisitor(monitor);
delta.accept(visitor);
}
}
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