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.servicemix.script;
018    
019    import java.util.ArrayList;
020    import java.util.Iterator;
021    import java.util.List;
022    
023    import javax.jbi.messaging.MessageExchange;
024    import javax.jbi.messaging.MessagingException;
025    
026    import org.apache.servicemix.common.ExchangeProcessor;
027    import org.apache.servicemix.common.endpoints.ProviderEndpoint;
028    
029    /**
030     * @org.apache.xbean.XBean element="exchangeProcessor"
031     */
032    public class ScriptExchangeProcessorEndpoint extends ProviderEndpoint {
033    
034        private ExchangeProcessor implementation;
035    
036        private List helpers = new ArrayList();
037    
038        public List getHelpers() {
039            return helpers;
040        }
041    
042        public void setHelpers(List helpers) {
043            this.helpers = helpers;
044            for (Iterator iterator = helpers.iterator(); iterator.hasNext();) {
045                Object nextHelper = iterator.next();
046                if (nextHelper instanceof ScriptHelper) {
047                    ((ScriptHelper) nextHelper).setScriptExchangeProcessorEndpoint(this);
048                }
049            }
050        }
051    
052        public ExchangeProcessor getImplementation() {
053            return implementation;
054        }
055    
056        public void setImplementation(ExchangeProcessor implementation) {
057            this.implementation = implementation;
058        }
059    
060        public void start() throws Exception {
061            super.start();
062            logger = this.serviceUnit.getComponent().getLogger();
063            if (implementation != null) {
064                implementation.start();
065            }
066        }
067    
068        public void stop() throws Exception {
069            if (implementation != null) {
070                try {
071                    implementation.stop();
072                } catch (Exception e) {
073                    e.printStackTrace();
074                }
075            }
076            super.stop();
077        }
078    
079        public void process(MessageExchange exchange) throws Exception {
080            if (implementation != null) {
081                implementation.process(exchange);
082            }
083        }
084    
085        protected void fail(MessageExchange messageExchange, Exception e) throws MessagingException {
086            super.fail(messageExchange, e);
087        }
088    
089        protected void send(MessageExchange messageExchange) throws MessagingException {
090            super.send(messageExchange);
091        }
092    
093        protected void sendSync(MessageExchange messageExchange) throws MessagingException {
094            super.sendSync(messageExchange);
095        }
096    
097        protected void done(MessageExchange messageExchange) throws MessagingException {
098            super.done(messageExchange);
099        }
100    }