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.common.endpoints;
018    
019    import javax.jbi.component.ComponentContext;
020    import javax.jbi.messaging.DeliveryChannel;
021    import javax.jbi.messaging.ExchangeStatus;
022    import javax.jbi.messaging.MessageExchange;
023    import javax.jbi.messaging.MessageExchangeFactory;
024    import javax.jbi.messaging.MessagingException;
025    import javax.jbi.servicedesc.ServiceEndpoint;
026    import javax.xml.namespace.QName;
027    
028    import org.apache.servicemix.common.DefaultComponent;
029    import org.apache.servicemix.common.Endpoint;
030    import org.apache.servicemix.common.EndpointComponentContext;
031    import org.apache.servicemix.common.ExchangeProcessor;
032    import org.apache.servicemix.common.ServiceUnit;
033    
034    public abstract class SimpleEndpoint extends Endpoint implements ExchangeProcessor {
035    
036        private DeliveryChannel channel;
037        private MessageExchangeFactory exchangeFactory;
038        private ComponentContext context;
039    
040        public SimpleEndpoint() {
041        }
042    
043        public SimpleEndpoint(ServiceUnit serviceUnit, QName service, String endpoint) {
044            super(serviceUnit, service, endpoint);
045        }
046    
047        public SimpleEndpoint(DefaultComponent component, ServiceEndpoint endpoint) {
048            super(component.getServiceUnit(), endpoint.getServiceName(), endpoint.getEndpointName());
049        }
050    
051        public synchronized void activate() throws Exception {
052            context = new EndpointComponentContext(this);
053            channel = context.getDeliveryChannel();
054            exchangeFactory = channel.createExchangeFactory();
055            start();
056        }
057    
058        public synchronized void deactivate() throws Exception {
059            stop();
060        }
061        
062        public ExchangeProcessor getProcessor() {
063            return this;
064        }
065    
066        protected void send(MessageExchange me) throws MessagingException {
067            channel.send(me);
068        }
069        
070        protected void sendSync(MessageExchange me) throws MessagingException {
071            if (!channel.sendSync(me)) {
072                throw new MessagingException("SendSync failed");
073            }
074        }
075        
076        protected void done(MessageExchange me) throws MessagingException {
077            me.setStatus(ExchangeStatus.DONE);
078            send(me);
079        }
080        
081        protected void fail(MessageExchange me, Exception error) throws MessagingException {
082            me.setError(error);
083            send(me);
084        }
085        
086        /**
087         * @return the exchangeFactory
088         */
089        public MessageExchangeFactory getExchangeFactory() {
090            return exchangeFactory;
091        }
092    
093        /**
094         * @return the channel
095         */
096        public DeliveryChannel getChannel() {
097            return channel;
098        }
099    
100        /**
101         * @return the context
102         */
103        public ComponentContext getContext() {
104            return context;
105        }
106    
107    }