001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.camel.processor;
019    
020    import org.apache.camel.Exchange;
021    import org.apache.camel.Processor;
022    import org.apache.camel.processor.DelegateProcessor;
023    import org.apache.camel.util.ServiceHelper;
024    
025    /**
026     * An interceptor which provides the processing logic as a pluggable processor
027     * which allows the {@link #proceed(Exchange)} method to be called at some point
028     *
029     * @version $Revision: 1.1 $
030     */
031    public class Interceptor extends DelegateProcessor {
032        private Processor interceptorLogic;
033    
034        public Interceptor() {
035        }
036    
037        public Interceptor(Processor interceptorLogic) {
038            this.interceptorLogic = interceptorLogic;
039        }
040    
041        public void process(Exchange exchange) throws Exception {
042            interceptorLogic.process(exchange);
043        }
044    
045        public Processor getInterceptorLogic() {
046            return interceptorLogic;
047        }
048    
049        public void setInterceptorLogic(Processor interceptorLogic) {
050            this.interceptorLogic = interceptorLogic;
051        }
052    
053        @Override
054        protected void doStart() throws Exception {
055            ServiceHelper.startService(interceptorLogic);
056            super.doStart();
057        }
058    
059        @Override
060        protected void doStop() throws Exception {
061            ServiceHelper.stopService(interceptorLogic);
062            super.doStop();
063        }
064    }