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.impl;
018
019 import org.apache.camel.CamelContext;
020 import org.apache.camel.Component;
021 import org.apache.camel.Exchange;
022 import org.apache.camel.PollingConsumer;
023 import org.apache.camel.Processor;
024 import org.apache.camel.Producer;
025
026 /**
027 * An endpoint which allows exchanges to be sent into it which just invokes a
028 * given {@link Processor}. This component does not support the use of
029 * consumers.
030 *
031 * @version $Revision: 747062 $
032 */
033 public class ProcessorEndpoint extends DefaultPollingEndpoint {
034 private Processor processor;
035
036 protected ProcessorEndpoint() {
037 }
038
039 protected ProcessorEndpoint(String endpointUri) {
040 super(endpointUri);
041 }
042
043 public ProcessorEndpoint(String endpointUri, CamelContext context, Processor processor) {
044 super(endpointUri, context);
045 this.processor = processor;
046 }
047
048 public ProcessorEndpoint(String endpointUri, Component component, Processor processor) {
049 super(endpointUri, component);
050 this.processor = processor;
051 }
052
053 public ProcessorEndpoint(String endpointUri, Processor processor) {
054 super(endpointUri);
055 this.processor = processor;
056 }
057
058 protected ProcessorEndpoint(String endpointUri, Component component) {
059 super(endpointUri, component);
060 }
061
062 public Producer createProducer() throws Exception {
063 return new DefaultProducer(this) {
064 public void process(Exchange exchange) throws Exception {
065 onExchange(exchange);
066 }
067 };
068 }
069
070 @Override
071 public PollingConsumer createPollingConsumer() throws Exception {
072 return new ProcessorPollingConsumer(this, getProcessor());
073 }
074
075 public Processor getProcessor() throws Exception {
076 if (processor == null) {
077 processor = createProcessor();
078 }
079 return processor;
080 }
081
082 public void setProcessor(Processor processor) {
083 this.processor = processor;
084 }
085
086 protected Processor createProcessor() throws Exception {
087 return new Processor() {
088 public void process(Exchange exchange) throws Exception {
089 onExchange(exchange);
090 }
091 };
092 }
093
094 protected void onExchange(Exchange exchange) throws Exception {
095 getProcessor().process(exchange);
096 }
097
098 public boolean isSingleton() {
099 return true;
100 }
101 }