/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.ivyde.eclipse.cpcontainer;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Comparator;
import org.apache.ivy.Ivy;
import org.apache.ivy.core.module.descriptor.ModuleDescriptor;
import org.apache.ivy.core.resolve.ResolveOptions;
import org.apache.ivy.util.Message;
import org.apache.ivyde.eclipse.IvyDEException;
import org.apache.ivyde.eclipse.IvyPlugin;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.jdt.core.ElementChangedEvent;
import org.eclipse.jdt.core.IClasspathContainer;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IElementChangedListener;
import org.eclipse.jdt.core.IJavaElementDelta;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.core.DeltaProcessingState;
import org.eclipse.jdt.internal.core.JavaElementDelta;
import org.eclipse.jdt.internal.core.JavaModelManager;
import org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Display;
import org.osgi.framework.Bundle;
import org.osgi.framework.Constants;
/**
* Eclipse classpath container that will contain the ivy resolved entries.
*/
public class IvyClasspathContainer implements IClasspathContainer {
public static final String CONTAINER_ID = "org.apache.ivyde.eclipse.cpcontainer.IVYDE_CONTAINER";
private IClasspathEntry[] classpathEntries;
private IPath path;
private IvyResolveJob job;
private IvyClasspathContainerConfiguration conf;
private String jdtVersion;
/**
* Create an Ivy class path container from some predefined classpath entries. The provided class
* path entries should come from the default "persisted" classpath container. Note that no
* resolve nor resolve are executed here, so some inconsistencies might exist between the
* ivy.xml and the provided classpath entries.
*
* @param javaProject
* the project of containing this container
* @param path
* the path the container
* @param ivyFile
* the path to the ivy file
* @param confs
* the configuration that will be resolved
* @param classpathEntries
* the entries to start with
* @throws IOException
* @throws ParseException
* @throws MalformedURLException
*/
public IvyClasspathContainer(IJavaProject javaProject, IPath path,
IClasspathEntry[] classpathEntries) throws IOException {
this.path = path;
conf = new IvyClasspathContainerConfiguration(javaProject, path, false);
this.classpathEntries = classpathEntries;
}
public IvyClasspathContainer(IvyClasspathContainer cp) {
path = cp.path;
conf = cp.conf;
classpathEntries = cp.classpathEntries;
}
public IvyClasspathContainerConfiguration getConf() {
return conf;
}
public String getDescription() {
return conf.ivyXmlPath + " " + conf.confs;
}
public int getKind() {
return K_APPLICATION;
}
public IPath getPath() {
return path;
}
public IClasspathEntry[] getClasspathEntries() {
return classpathEntries;
}
private static final ISchedulingRule RESOLVE_EVENT_RULE = new ISchedulingRule() {
public boolean contains(ISchedulingRule rule) {
return rule == this;
}
public boolean isConflicting(ISchedulingRule rule) {
return rule == this;
}
};
private IvyResolveJob computeClasspathEntries(final boolean usePreviousResolveIfExist,
boolean isUser) {
try {
synchronized (this) {
if (job != null) {
// resolve job already running
return job;
}
job = new IvyResolveJob(this, usePreviousResolveIfExist);
job.setUser(isUser);
job.setRule(RESOLVE_EVENT_RULE);
return job;
}
} catch (Throwable e) {
// IVYDE-79 : catch Throwable in order to catch java.lang.NoClassDefFoundError too
Message.error(e.getMessage());
IvyPlugin.log(IStatus.ERROR, "The creation of the job failed", e);
MessageDialog.openError(IvyPlugin.getActiveWorkbenchShell(), "Resolve failed", e
.getMessage());
return null;
}
}
public void launchResolve(boolean usePreviousResolveIfExist, boolean isUser,
IProgressMonitor monitor) {
IvyResolveJob j = computeClasspathEntries(usePreviousResolveIfExist, isUser);
if (j != null) {
if (monitor != null) {
j.run(monitor);
} else {
j.schedule();
}
}
}
void updateClasspathEntries(final IClasspathEntry[] newEntries) {
IClasspathEntry[] entries;
if (newEntries != null) {
entries = newEntries;
} else {
entries = new IClasspathEntry[0];
}
setClasspathEntries(entries);
}
private void setClasspathEntries(final IClasspathEntry[] entries) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
if (conf.isInheritedAlphaOrder()) {
Arrays.sort(entries, new Comparator() {
public int compare(Object o1, Object o2) {
return ((IClasspathEntry) o1).getPath().lastSegment().compareTo(
((IClasspathEntry) o2).getPath().lastSegment());
}
});
}
classpathEntries = entries;
notifyUpdateClasspathEntries();
}
});
}
void notifyUpdateClasspathEntries() {
try {
JavaCore.setClasspathContainer(path, new IJavaProject[] {conf.javaProject},
new IClasspathContainer[] {new IvyClasspathContainer(IvyClasspathContainer.this)},
null);
// the following code was imported from:
//http://svn.codehaus.org/m2eclipse/trunk/org.maven.ide.eclipse/src/org/maven/ide/eclipse
// /embedder/BuildPathManager.java
// revision: 370; function setClasspathContainer; line 215
// XXX In Eclipse 3.3, changes to resolved classpath are not announced by JDT Core
// and PackageExplorer does not properly refresh when we update Ivy
// classpath container.
// As a temporary workaround, send F_CLASSPATH_CHANGED notifications
// to all PackageExplorerContentProvider instances listening to
// java ElementChangedEvent.
// Note that even with this hack, build clean is sometimes necessary to
// reconcile PackageExplorer with actual classpath
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=154071
if (getJDTVersion().startsWith("3.3")) {
DeltaProcessingState state = JavaModelManager.getJavaModelManager().deltaState;
synchronized (state) {
IElementChangedListener[] listeners = state.elementChangedListeners;
for (int i = 0; i < listeners.length; i++) {
if (listeners[i] instanceof PackageExplorerContentProvider) {
JavaElementDelta delta = new JavaElementDelta(conf.javaProject);
delta.changed(IJavaElementDelta.F_CLASSPATH_CHANGED);
listeners[i].elementChanged(new ElementChangedEvent(delta,
ElementChangedEvent.POST_CHANGE));
}
}
}
}
} catch (JavaModelException e) {
// unless there are some issues with the JDT, this should never happen
IvyPlugin.log(e);
}
}
private synchronized String getJDTVersion() {
if (jdtVersion == null) {
Bundle[] bundles = IvyPlugin.getDefault().getBundleContext().getBundles();
for (int i = 0; i < bundles.length; i++) {
if (JavaCore.PLUGIN_ID.equals(bundles[i].getSymbolicName())) {
jdtVersion = (String) bundles[i].getHeaders().get(Constants.BUNDLE_VERSION);
break;
}
}
}
return jdtVersion;
}
public URL getReportUrl() throws IvyDEException {
Ivy ivy = conf.getIvy();
ModuleDescriptor md = conf.getModuleDescriptor();
String resolveId = ResolveOptions.getDefaultResolveId(md);
try {
return ivy.getResolutionCacheManager().getConfigurationResolveReportInCache(resolveId,
md.getConfigurationsNames()[0]).toURL();
} catch (MalformedURLException e) {
// should never happen
throw new RuntimeException(e);
}
}
public void resetJob() {
job = null;
}
}