001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.component.controlbus;
018
019import java.util.Map;
020import java.util.concurrent.ExecutorService;
021
022import org.apache.camel.Endpoint;
023import org.apache.camel.impl.UriEndpointComponent;
024
025/**
026 * The <a href="http://camel.apache.org/controlbus.html">Control Bus component</a> allows sending messages to a control-bus endpoint to control the lifecycle of routes.
027 */
028public class ControlBusComponent extends UriEndpointComponent {
029
030    private ExecutorService executorService;
031
032    public ControlBusComponent() {
033        super(ControlBusEndpoint.class);
034    }
035
036    @Override
037    protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
038        ControlBusEndpoint answer = new ControlBusEndpoint(uri, this);
039
040        // does the control bus use a language
041        if (remaining != null && remaining.startsWith("language:")) {
042            String lan = remaining.substring(9);
043            answer.setLanguage(getCamelContext().resolveLanguage(lan));
044        }
045
046        setProperties(answer, parameters);
047        return answer;
048    }
049
050    synchronized ExecutorService getExecutorService() {
051        if (executorService == null) {
052            executorService = getCamelContext().getExecutorServiceManager().newDefaultThreadPool(this, "ControlBus");
053        }
054        return executorService;
055    }
056
057    @Override
058    protected void doStop() throws Exception {
059        if (executorService != null) {
060            getCamelContext().getExecutorServiceManager().shutdownNow(executorService);
061            executorService = null;
062        }
063        super.doStop();
064    }
065}