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/*
* 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 helloworld;
import java.util.Hashtable;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.BundleActivator;
public class OSGiHelloWorldImpl implements HelloWorld, ServiceListener, BundleActivator {
public helloworld.ws.HelloWorld helloWorldWS;
private BundleContext bundleContext;
public String getGreetings(String s) {
return helloWorldWS.getGreetings(s);
}
public void start(BundleContext bc) {
System.out.println("Started OsgiHelloWorldImpl bundle ");
this.bundleContext = bc;
Hashtable<String, Object> serviceProps = new Hashtable<String, Object>();
serviceProps.put("component.name", "HelloWorldComponent");
bundleContext.registerService("helloworld.HelloWorld", this, serviceProps);
ServiceReference ref = bundleContext.getServiceReference("helloworld.ws.HelloWorld");
if (ref != null)
helloWorldWS = (helloworld.ws.HelloWorld)bundleContext.getService(ref);
else {
try {
String filter = "(objectclass=helloworld.ws.HelloWorld)";
this.bundleContext.addServiceListener(this, filter);
} catch (InvalidSyntaxException e) {
e.printStackTrace();
}
}
}
public void stop(BundleContext bc) {
}
public void serviceChanged(ServiceEvent event) {
try {
if (event.getType() == ServiceEvent.REGISTERED) {
ServiceReference ref = event.getServiceReference();
helloWorldWS = (helloworld.ws.HelloWorld) bundleContext.getService(ref);
}
} catch (Throwable e) {
e.printStackTrace();
}
}
}
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