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.Predicate;
021 import org.apache.camel.Processor;
022 import org.apache.camel.Exchange;
023 import org.apache.camel.impl.ServiceSupport;
024 import org.apache.camel.util.ServiceHelper;
025
026 /**
027 * @version $Revision: 534941 $
028 */
029 public class FilterProcessor extends ServiceSupport implements Processor {
030 private Predicate<Exchange> predicate;
031 private Processor processor;
032
033 public FilterProcessor(Predicate<Exchange> predicate, Processor processor) {
034 this.predicate = predicate;
035 this.processor = processor;
036 }
037
038 public void process(Exchange exchange) throws Exception {
039 if (predicate.matches(exchange)) {
040 processor.process(exchange);
041 }
042 }
043
044 @Override
045 public String toString() {
046 return "filter (" + predicate + ") " + processor;
047 }
048
049 public Predicate<Exchange> getPredicate() {
050 return predicate;
051 }
052
053 public Processor getProcessor() {
054 return processor;
055 }
056
057 protected void doStart() throws Exception {
058 ServiceHelper.startServices(processor);
059 }
060
061 protected void doStop() throws Exception {
062 ServiceHelper.stopServices(processor);
063 }
064 }