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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ote.runtimemanager;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.HashSet;
import java.util.Set;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import org.eclipse.osee.framework.ui.workspacebundleloader.IJarChangeListener;
import org.eclipse.osee.framework.ui.workspacebundleloader.JarCollectionNature;
import org.eclipse.osee.ote.core.BundleInfo;
/**
* @author Robert A. Fisher
*/
public class JarListenerStub<T extends JarCollectionNature> implements IJarChangeListener<T> {
private final Object bundleSynchronizer;
private final Set<String> newBundles;
private final Set<String> changedBundles;
private final Set<String> removedBundles;
public JarListenerStub() {
this.bundleSynchronizer = new Object();
this.newBundles = new HashSet<String>();
this.changedBundles = new HashSet<String>();
this.removedBundles = new HashSet<String>();
}
@Override
public void handleBundleAdded(URL url) {
try {
String bundleName = getBundleNameFromJar(url);
synchronized (bundleSynchronizer) {
newBundles.add(bundleName);
changedBundles.remove(bundleName);
removedBundles.remove(bundleName);
}
System.out.println("Bundle added:" + bundleName);
} catch (IOException ex) {
}
}
@Override
public void handleBundleChanged(URL url) {
try {
String bundleName = getBundleNameFromJar(url);
synchronized (bundleSynchronizer) {
changedBundles.add(bundleName);
newBundles.remove(bundleName);
removedBundles.remove(bundleName);
}
System.out.println("Bundle changed:" + bundleName);
} catch (IOException ex) {
}
}
@Override
public void handleBundleRemoved(URL url) {
try {
String bundleName = getBundleNameFromJar(url);
synchronized (bundleSynchronizer) {
removedBundles.add(bundleName);
newBundles.remove(bundleName);
changedBundles.remove(bundleName);
}
System.out.println("Bundle removed:" + bundleName);
} catch (IOException ex) {
}
}
@Override
public void handleNatureClosed(T nature) {
System.out.println("Project closed: " + nature.getProject().getName());
for (URL url : nature.getBundles()) {
handleBundleRemoved(url);
}
}
@Override
public void handlePostChange() {
System.out.println("Bunch of changes just finished");
}
private <S extends Object> Set<S> duplicateAndClear(Set<S> set) {
synchronized (bundleSynchronizer) {
Set<S> returnBundles = new HashSet<S>(set);
set.clear();
return returnBundles;
}
}
/**
* @return the newBundles
*/
public Set<String> consumeNewBundles() {
return duplicateAndClear(newBundles);
}
/**
* @return the changedBundles
*/
public Set<String> consumeChangedBundles() {
return duplicateAndClear(changedBundles);
}
/**
* @return the removedBundles
*/
public Set<String> consumeRemovedBundles() {
return duplicateAndClear(removedBundles);
}
private String getBundleNameFromJar(URL url) throws IOException {
File file;
try {
file = new File(url.toURI());
} catch (URISyntaxException ex) {
file = new File(url.getPath());
}
JarFile jarFile = new JarFile(file);
Manifest jarManifest = jarFile.getManifest();
return BundleInfo.generateBundleName(jarManifest);
}
}
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