| /* |
| * Licensed 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.karaf.cellar.hazelcast.factory; |
| |
| import java.util.Map; |
| import java.util.concurrent.CountDownLatch; |
| |
| import com.hazelcast.core.Hazelcast; |
| import com.hazelcast.core.HazelcastInstance; |
| import org.apache.karaf.cellar.core.utils.CombinedClassLoader; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * Factory for Hazelcast instance, including integration with OSGi ServiceRegistry and ConfigAdmin. |
| */ |
| public class HazelcastServiceFactory { |
| |
| private BundleContext bundleContext; |
| private CombinedClassLoader combinedClassLoader; |
| private HazelcastConfigurationManager configurationManager; |
| |
| private CountDownLatch initializationLatch = new CountDownLatch(1); |
| private CountDownLatch instanceLatch = new CountDownLatch(1); |
| private HazelcastInstance instance; |
| |
| public void init() { |
| if (combinedClassLoader != null) { |
| combinedClassLoader.addBundle(bundleContext.getBundle()); |
| } |
| initializationLatch.countDown(); |
| } |
| |
| public void destroy() { |
| if (instance != null) { |
| instance.getLifecycleService().shutdown(); |
| } |
| } |
| |
| public void update(Map properties) throws InterruptedException { |
| configurationManager.isUpdated(properties); |
| } |
| |
| /** |
| * Return the local Hazelcast instance. |
| * |
| * @return the Hazelcast instance. |
| */ |
| public HazelcastInstance getInstance() throws InterruptedException { |
| if (instance == null) { |
| initializationLatch.await(); |
| this.instance = buildInstance(); |
| instanceLatch.countDown(); |
| } |
| return instance; |
| } |
| |
| /** |
| * Build a {@link HazelcastInstance}. |
| * |
| * @return the Hazelcast instance. |
| */ |
| private HazelcastInstance buildInstance() { |
| if (combinedClassLoader != null) { |
| Thread.currentThread().setContextClassLoader(combinedClassLoader); |
| } |
| return Hazelcast.newHazelcastInstance(configurationManager.getHazelcastConfig()); |
| } |
| |
| public BundleContext getBundleContext() { |
| return bundleContext; |
| } |
| |
| public void setBundleContext(BundleContext bundleContext) { |
| this.bundleContext = bundleContext; |
| } |
| |
| public CombinedClassLoader getCombinedClassLoader() { |
| return combinedClassLoader; |
| } |
| |
| public void setCombinedClassLoader(CombinedClassLoader combinedClassLoader) { |
| this.combinedClassLoader = combinedClassLoader; |
| } |
| |
| public void setConfigurationManager(HazelcastConfigurationManager configurationManager) { |
| this.configurationManager = configurationManager; |
| } |
| |
| } |