/**
* 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.camel.impl;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedHashSet;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.camel.Service;
import org.apache.camel.ServiceStatus;
import org.apache.camel.ShutdownableService;
import org.apache.camel.util.ServiceHelper;
/**
* A useful base class which ensures that a service is only initialized once and
* provides some helper methods for enquiring of its status.
*
* Implementations can extend this base class and implement {@link org.apache.camel.SuspendableService}
* in case they support suspend/resume.
*
* @version
*/
public abstract class ServiceSupport implements Service, ShutdownableService {
private final AtomicBoolean started = new AtomicBoolean(false);
private final AtomicBoolean starting = new AtomicBoolean(false);
private final AtomicBoolean stopping = new AtomicBoolean(false);
private final AtomicBoolean stopped = new AtomicBoolean(false);
private final AtomicBoolean suspending = new AtomicBoolean(false);
private final AtomicBoolean suspended = new AtomicBoolean(false);
private final AtomicBoolean shuttingdown = new AtomicBoolean(false);
private final AtomicBoolean shutdown = new AtomicBoolean(false);
private Set