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: 656397 $
032 */
033 public class ProcessorEndpoint extends DefaultPollingEndpoint<Exchange> {
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
059 protected ProcessorEndpoint(String endpointUri, Component component) {
060 super(endpointUri, component);
061 }
062
063 public Producer<Exchange> createProducer() throws Exception {
064 return new DefaultProducer<Exchange>(this) {
065 public void process(Exchange exchange) throws Exception {
066 onExchange(exchange);
067 }
068 };
069 }
070
071 @Override
072 public PollingConsumer<Exchange> createPollingConsumer() throws Exception {
073 return new ProcessorPollingConsumer(this, getProcessor());
074 }
075
076 public Processor getProcessor() throws Exception {
077 if (processor == null) {
078 processor = createProcessor();
079 }
080 return processor;
081 }
082
083 protected Processor createProcessor() throws Exception {
084 return new Processor() {
085 public void process(Exchange exchange) throws Exception {
086 onExchange(exchange);
087 }
088 };
089 }
090
091 protected void onExchange(Exchange exchange) throws Exception {
092 getProcessor().process(exchange);
093 }
094
095 public boolean isSingleton() {
096 return true;
097 }
098 }