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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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*/
package org.glassfish.web.osgi;
import com.sun.enterprise.module.common_impl.CompositeEnumeration;
import org.glassfish.api.ActionReport;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.deployment.OpsParams;
import org.glassfish.api.deployment.archive.ArchiveHandler;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.deployment.common.DeploymentContextImpl;
import org.glassfish.internal.api.ClassLoaderHierarchy;
import org.glassfish.internal.api.Globals;
import org.glassfish.web.loader.WebappClassLoader;
import org.osgi.framework.Bundle;
import org.osgi.framework.Constants;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.StringTokenizer;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author [email protected]
*/
public class OSGiDeploymentContextImpl extends DeploymentContextImpl
{
private static final Logger logger =
Logger.getLogger(OSGiDeploymentContextImpl.class.getPackage().getName());
private WebappClassLoader shareableTempClassLoader;
private WebappClassLoader finalClassLoader;
private Bundle bundle;
public OSGiDeploymentContextImpl(ActionReport actionReport,
Logger logger,
ReadableArchive source,
OpsParams params,
ServerEnvironment env,
Bundle bundle) throws Exception
{
super(actionReport, logger, source, params, env);
this.bundle = bundle;
setupClassLoader();
// We always this handler instead of going through discovery process
// which has issues.
setArchiveHandler(new OSGiWarHandler());
}
private void setupClassLoader() throws Exception
{
final BundleClassLoader delegate1 = new BundleClassLoader(bundle);
final ClassLoader delegate2 =
Globals.get(ClassLoaderHierarchy.class).getAPIClassLoader();
// This does not work because of lack of pernmission to call
// protected methods.
// DelegatingClassLoader parent =
// new DelegatingClassLoader(delegate1.getParent());
// parent.addDelegate(new ReflectiveClassFinder(delegate1));
// parent.addDelegate(new ReflectiveClassFinder(delegate2));
ClassLoader parent = new ClassLoader() {
@Override
protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException
{
try {
return delegate1.loadClass(name, resolve);
} catch (ClassNotFoundException cnfe) {
return delegate2.loadClass(name);
}
}
@Override
public URL getResource(String name)
{
URL url = delegate1.getResource(name);
if (url == null) {
url = delegate2.getResource(name);
}
return url;
}
@Override
public Enumeration getResources(String name) throws IOException
{
List> enumerators = new ArrayList>();
enumerators.add(delegate1.getResources(name));
enumerators.add(delegate2.getResources(name));
return new CompositeEnumeration(enumerators);
}
};
finalClassLoader = new WebappClassLoader(parent){
// Since we don't set URLs, we need to return appropriate URLs
// for JSPC to work. See WebappLoader.setClassPath().
@Override
public URL[] getURLs()
{
return convert((String)bundle.getHeaders().
get(Constants.BUNDLE_CLASSPATH));
}
private URL[] convert(String bcp) {
List urls = new ArrayList();
//Bundle-ClassPath entries are separated by ; or ,
StringTokenizer entries = new StringTokenizer(bcp, ",;");
String entry;
while (entries.hasMoreTokens()) {
entry = entries.nextToken().trim();
if (entry.startsWith("/")) entry = entry.substring(1);
try
{
URL url = new File(getSourceDir(), entry).toURI().toURL();
urls.add(url);
}
catch (MalformedURLException e)
{
logger.logp(Level.WARNING, "OSGiDeploymentContextImpl", "convert", "Failed to add {0} as classpath because of", new Object[]{entry, e.getMessage()});
}
}
return urls.toArray(new URL[0]);
}
};
// This does not work. Find out why TempBundleClassLoader loads a
// separate copy of Globals.class.
// shareableTempClassLoader = new WebappClassLoader(
// new TempBundleClassLoader(parent));
// shareableTempClassLoader.start();
shareableTempClassLoader = finalClassLoader;
finalClassLoader.start();
}
@Override
public void createDeploymentClassLoader(ClassLoaderHierarchy clh,
ArchiveHandler handler)
throws URISyntaxException, MalformedURLException
{
// do nothing as we override getClassLoader methods.
}
@Override
public void createApplicationClassLoader(ClassLoaderHierarchy clh,
ArchiveHandler handler)
throws URISyntaxException, MalformedURLException
{
// do nothing as we override getClassLoader methods.
}
@Override
public ClassLoader getClassLoader()
{
if (getPhase() != Phase.PREPARE) {
// we return the final class loader
return finalClassLoader;
}
return shareableTempClassLoader;
}
@Override
public ClassLoader getFinalClassLoader()
{
return finalClassLoader;
}
@Override
public synchronized ClassLoader getClassLoader(boolean sharable)
{
throw new RuntimeException("Assertion Failure: " +
"This method should not be called");
}
}
