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.management;
018    
019    import java.util.EventObject;
020    
021    import org.apache.camel.CamelContext;
022    import org.apache.camel.CamelContextAware;
023    import org.apache.camel.Endpoint;
024    import org.apache.camel.Exchange;
025    import org.apache.camel.Producer;
026    import org.apache.camel.util.ObjectHelper;
027    import org.apache.camel.util.ServiceHelper;
028    
029    /**
030     * A {@link org.apache.camel.spi.EventNotifier} which publishes the {@link EventObject} to some
031     * {@link org.apache.camel.Endpoint}.
032     *
033     * @version $Revision: 17333 $
034     */
035    public class PublishEventNotifier extends EventNotifierSupport implements CamelContextAware {
036    
037        private CamelContext camelContext;
038        private Endpoint endpoint;
039        private String endpointUri;
040        private Producer producer;
041    
042        public void notify(EventObject event) throws Exception {
043            Exchange exchange = producer.createExchange();
044            exchange.getIn().setBody(event);
045    
046            producer.process(exchange);
047        }
048    
049        public boolean isEnabled(EventObject event) {
050            return true;
051        }
052    
053        public CamelContext getCamelContext() {
054            return camelContext;
055        }
056    
057        public void setCamelContext(CamelContext camelContext) {
058            this.camelContext = camelContext;
059        }
060    
061        public Endpoint getEndpoint() {
062            return endpoint;
063        }
064    
065        public void setEndpoint(Endpoint endpoint) {
066            this.endpoint = endpoint;
067        }
068    
069        public String getEndpointUri() {
070            return endpointUri;
071        }
072    
073        public void setEndpointUri(String endpointUri) {
074            this.endpointUri = endpointUri;
075        }
076    
077        @Override
078        protected void doStart() throws Exception {
079            ObjectHelper.notNull(camelContext, "camelContext", this);
080            if (endpoint == null && endpointUri == null) {
081                throw new IllegalArgumentException("Either endpoint or endpointUri must be configured");
082            }
083    
084            if (endpoint == null) {
085                endpoint = camelContext.getEndpoint(endpointUri);
086            }
087    
088            producer = endpoint.createProducer();
089            ServiceHelper.startService(producer);
090        }
091    
092        @Override
093        protected void doStop() throws Exception {
094            ServiceHelper.stopService(producer);
095        }
096    
097        @Override
098        public String toString() {
099            return "PublishEventNotifier[" + (endpoint != null ? endpoint.getEndpointUri() : endpointUri) + "]";
100        }
101    
102    }