com.hazelcast.osgi.Activator Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.osgi;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.Logger;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import java.lang.reflect.Method;
/**
* Hazelcast OSGi bundle activator
*
* initializes script Engines
*/
public class Activator
implements BundleActivator {
private static final String HAZELCAST_OSGI_START = "hazelcast.osgi.start";
private static final ILogger LOGGER = Logger.getLogger(Activator.class);
private HazelcastInstance hazelcastInstance;
@Override
public void start(BundleContext context)
throws Exception {
// Try to start javax.scripting - JSR 223
activateJavaxScripting(context);
if (System.getProperty(HAZELCAST_OSGI_START) != null) {
hazelcastInstance = Hazelcast.newHazelcastInstance();
}
}
@Override
public void stop(BundleContext context)
throws Exception {
if (System.getProperty("hazelcast.osgi.start") != null) {
hazelcastInstance.shutdown();
}
}
private void activateJavaxScripting(BundleContext context)
throws Exception {
if (!isJavaxScriptingAvailable()) {
LOGGER.warning("javax.scripting is not available, scripts from Management Center cannot be executed!");
return;
}
Class clazz = context.getBundle().loadClass("com.hazelcast.osgi.ScriptEngineActivator");
Method register = clazz.getDeclaredMethod("registerOsgiScriptEngineManager", BundleContext.class);
register.invoke(clazz, context);
}
private boolean isJavaxScriptingAvailable() {
try {
Class.forName("javax.script.ScriptEngineManager");
return true;
} catch (ClassNotFoundException e) {
return false;
}
}
}