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.camel.processor;
018    
019    import org.apache.camel.Exchange;
020    import org.apache.camel.Intercept;
021    import org.apache.camel.Processor;
022    import org.apache.camel.util.ServiceHelper;
023    
024    /**
025     * An interceptor which provides the processing logic as a pluggable processor
026     * which allows the {@link #proceed(Exchange)} method to be called at some point
027     *
028     * @version $Revision: 610 $
029     */
030    public class Interceptor extends DelegateProcessor implements Intercept {
031        private Processor interceptorLogic;
032    
033        public Interceptor() {
034        }
035    
036        public Interceptor(Processor interceptorLogic) {
037            this.interceptorLogic = interceptorLogic;
038        }
039    
040        public void process(Exchange exchange) throws Exception {
041            interceptorLogic.process(exchange);
042        }
043    
044        public Processor getInterceptorLogic() {
045            return interceptorLogic;
046        }
047    
048        public void setInterceptorLogic(Processor interceptorLogic) {
049            this.interceptorLogic = interceptorLogic;
050        }
051    
052        @Override
053        protected void doStart() throws Exception {
054            ServiceHelper.startService(interceptorLogic);
055            super.doStart();
056        }
057    
058        @Override
059        protected void doStop() throws Exception {
060            ServiceHelper.stopService(interceptorLogic);
061            super.doStop();
062        }
063    }