/*******************************************************************************
* Copyright (c) 2012 BMW Car IT 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
*******************************************************************************/
package org.jnario.ui.buildpath;
import static com.google.common.collect.Sets.newHashSet;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.log4j.Logger;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.xtext.util.MergeableManifest;
/**
* @author Sebastian Benz
*
*/
public class JnarioLibClasspathAdder {
private static final Logger LOG = Logger.getLogger(JnarioLibClasspathAdder.class);
private static final String PLUGIN_NATURE = "org.eclipse.pde.PluginNature";
public void addLibsToClasspath(IJavaProject javaProject, IProgressMonitor monitor) {
try {
SubMonitor progress = SubMonitor.convert(monitor, 2);
IProject project = javaProject.getProject();
if (!project.hasNature(PLUGIN_NATURE) || !addToPluginManifest(project, progress.newChild(1)))
addToClasspath(javaProject, progress.newChild(1));
} catch (Exception exc) {
LOG.error("Error adding Xtend libs to classpath", exc);
}
}
protected boolean addToClasspath(IJavaProject javaProject, IProgressMonitor monitor) throws JavaModelException {
IClasspathEntry xtendContainerEntry = JavaCore.newContainerEntry(JnarioContainerInitializer.JNARIO_LIBRARY_PATH);
IClasspathEntry[] rawClasspath = javaProject.getRawClasspath();
IClasspathEntry[] newRawClasspath = new IClasspathEntry[rawClasspath.length + 1];
for(int i=0; i<rawClasspath.length; ++i) {
IClasspathEntry entry = rawClasspath[i];
if (entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER && entry.getPath().equals(xtendContainerEntry.getPath())){
return false;
}
newRawClasspath[i+1] = entry;
}
newRawClasspath[0] = xtendContainerEntry;
javaProject.setRawClasspath(newRawClasspath, monitor);
return true;
}
protected boolean addToPluginManifest(IProject project, IProgressMonitor monitor) throws IOException, CoreException {
IResource manifestFile = project.findMember("META-INF/MANIFEST.MF");
if (manifestFile != null && manifestFile.isAccessible() && !manifestFile.getResourceAttributes().isReadOnly()
&& manifestFile instanceof IFile) {
OutputStream output = null;
InputStream input = null;
try {
MergeableManifest manifest = new MergeableManifest(((IFile) manifestFile).getContents());
manifest.addRequiredBundles(newHashSet(JnarioContainerInitializer.BUNDLE_IDS_TO_INCLUDE));
ByteArrayOutputStream out = new ByteArrayOutputStream();
output = new BufferedOutputStream(out);
manifest.write(output);
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
input = new BufferedInputStream(in);
((IFile) manifestFile).setContents(input, true, true, monitor);
return true;
} finally {
if (output != null)
output.close();
if (input != null)
input.close();
}
}
return false;
}
}