karaf-2.3.x/main/src/main/java/org/apache/karaf/main/StartLevelListener.java

/*
 * 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.karaf.main;

import java.util.logging.Logger;

import org.osgi.framework.FrameworkEvent;
import org.osgi.framework.FrameworkListener;

public class StartLevelListener implements FrameworkListener {

    Logger LOG = Logger.getLogger(this.getClass().getName());
    private Object startLevelLock;
    
    public StartLevelListener(Object startLevelLock) {
        this.startLevelLock = startLevelLock;
    }

    public void frameworkEvent(FrameworkEvent event) {
        if (event.getType() == FrameworkEvent.STARTLEVEL_CHANGED) {
            synchronized (startLevelLock) {
                LOG.fine("Start level change complete.");
                startLevelLock.notifyAll();
            }
        }
    }
}