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}