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.Consumer;
022    import org.apache.camel.Exchange;
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: 1.1 $
032     */
033    public class ProcessorEndpoint extends DefaultEndpoint<Exchange> {
034        private final Processor processor;
035    
036        public ProcessorEndpoint(String endpointUri, CamelContext context, Processor processor) {
037            super(endpointUri, context);
038            this.processor = processor;
039        }
040    
041        public ProcessorEndpoint(String endpointUri, Component component, Processor processor) {
042            super(endpointUri, component);
043            this.processor = processor;
044        }
045    
046        public Exchange createExchange() {
047            return new DefaultExchange(getContext());
048        }
049    
050        public Producer<Exchange> createProducer() throws Exception {
051            return new DefaultProducer<Exchange>(this) {
052                public void process(Exchange exchange) throws Exception {
053                    onExchange(exchange);
054                }
055            };
056        }
057    
058        public Consumer<Exchange> createConsumer(Processor processor) throws Exception {
059            throw new UnsupportedOperationException("You cannot consume from this endpoint!");
060        }
061    
062        public Processor getProcessor() {
063            return processor;
064        }
065    
066        protected void onExchange(Exchange exchange) throws Exception {
067            processor.process(exchange);
068        }
069    
070        public boolean isSingleton() {
071            return true;
072        }
073    }