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     */
017    package org.apache.activemq.transport.http;
018    
019    import org.apache.activemq.broker.BrokerService;
020    import org.apache.activemq.xbean.BrokerFactoryBean;
021    import org.springframework.core.io.ClassPathResource;
022    
023    /**
024     * This servlet embeds an ActiveMQ broker inside a servlet engine which is ideal
025     * for deploying ActiveMQ inside a WAR and using this servlet as a HTTP tunnel.
026     * 
027     * 
028     */
029    public class HttpSpringEmbeddedTunnelServlet extends HttpEmbeddedTunnelServlet {
030    
031        private static final long serialVersionUID = -6568661997192814908L;
032    
033        /**
034         * Factory method to create a new broker
035         */
036        protected BrokerService createBroker() throws Exception {
037    
038            String configFile = getServletContext().getInitParameter("org.activemq.config.file");
039            if (configFile == null) {
040                configFile = "activemq.xml";
041            }
042    
043            BrokerFactoryBean factory = new BrokerFactoryBean(new ClassPathResource(configFile));
044            factory.afterPropertiesSet();
045    
046            return factory.getBroker();
047        }
048    
049    }