/*
* 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.ode.jbi.osgi;
import java.io.File;
import java.io.FileWriter;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import javax.jbi.component.Component;
import javax.jbi.component.ServiceUnitManager;
import org.apache.commons.io.IOUtils;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
/**
* @author mproch
*
*/
public class ServiceUnitActivator implements BundleActivator {
File rootDir;
String generatedName;
public void start(BundleContext context) throws Exception {
generatedName = context.getBundle().getSymbolicName();
rootDir = context.getDataFile("bpelData");
rootDir.mkdirs();
Enumeration<?> en = context.getBundle().findEntries("/", "*", false);
while (en.hasMoreElements()) {
copyOne(rootDir, (URL) en.nextElement());
}
ServiceReference[] refs = context.getAllServiceReferences(
"javax.jbi.component.Component", "(&(NAME=OdeBpelEngine))");
if (refs == null || refs.length != 1) {
throw new RuntimeException("no appropriate service :(");
}
ServiceUnitManager suM = ((Component) context.getService(refs[0]))
.getServiceUnitManager();
ClassLoader l = Thread.currentThread().getContextClassLoader();
try {
ClassLoader suL = suM.getClass().getClassLoader();
Thread.currentThread().setContextClassLoader(new BundleClassLoader(suL, context.getBundle()));
suM.deploy(generatedName, rootDir.getAbsolutePath());
suM.init(generatedName, rootDir.getAbsolutePath());
suM.start(generatedName);
} finally {
Thread.currentThread().setContextClassLoader(l);
}
}
private void copyOne(File dest, URL url) throws Exception {
File d = new File(dest, url.getPath());
InputStream str = url.openStream();
if (str != null) {
FileWriter wr = new FileWriter(d);
try {
IOUtils.copy(str, wr);
} finally {
wr.flush();
wr.close();
}
}
}
public void stop(BundleContext context) throws Exception {
ServiceReference[] refs = context.getAllServiceReferences(
"javax.jbi.component.Component", "(&(NAME=OdeBpelEngine))");
if (refs == null || refs.length != 1) {
throw new RuntimeException("no appropriate service :(");
}
ServiceUnitManager suM = ((Component) context.getService(refs[0]))
.getServiceUnitManager();
suM.shutDown(generatedName);
suM.undeploy(generatedName, rootDir.getAbsolutePath());
}
public class BundleClassLoader extends ClassLoader {
private final Bundle delegate;
public BundleClassLoader(ClassLoader parent, Bundle delegate) {
super(parent);
this.delegate = delegate;
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
try {
return getParent().loadClass(name);
} catch (Exception e) {
return delegate.loadClass(name);
}
}
}
}