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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 org.apache.tuscany.sca.osgi.remoteserviceadmin.impl;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.LifeCycleListener;
import org.apache.tuscany.sca.node.NodeFactory;
import org.apache.tuscany.sca.node.impl.NodeFactoryImpl;
import org.apache.tuscany.sca.osgi.service.discovery.impl.LocalDiscoveryService;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
/**
* Watching and exporting OSGi services
*/
public class AbstractOSGiServiceHandler implements LifeCycleListener {
protected ExtensionPointRegistry registry;
protected BundleContext context;
protected NodeFactoryImpl nodeFactory;
protected EndpointIntrospector introspector;
protected ServiceTracker discoveryTracker;
protected String domainRegistry;
protected String domainURI;
/**
* @param context
* @param clazz
* @param customizer
*/
protected AbstractOSGiServiceHandler(BundleContext context) {
this.context = context;
this.domainRegistry = context.getProperty("org.osgi.sca.domain.registry");
this.domainURI = context.getProperty("org.osgi.sca.domain.uri");
}
protected ExtensionPointRegistry getExtensionPointRegistry() {
if (registry == null) {
ServiceTracker tracker = new ServiceTracker(context, ExtensionPointRegistry.class.getName(), null);
tracker.open();
// tracker.waitForService(1000);
registry = (ExtensionPointRegistry)tracker.getService();
tracker.close();
}
return registry;
}
protected synchronized void init() {
if (nodeFactory == null) {
this.nodeFactory = (NodeFactoryImpl)NodeFactory.getInstance();
this.nodeFactory.init();
this.discoveryTracker = LocalDiscoveryService.getTracker(context);
discoveryTracker.open();
this.introspector = new EndpointIntrospector(context, getExtensionPointRegistry(), discoveryTracker);
}
}
public void start() {
init();
}
public void stop() {
if (nodeFactory != null) {
discoveryTracker.close();
discoveryTracker = null;
introspector = null;
nodeFactory = null;
registry = null;
context = null;
}
}
public void setDomainRegistry(String domainRegistry) {
this.domainRegistry = domainRegistry;
}
public void setDomainURI(String domainURI) {
this.domainURI = domainURI;
}
}
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