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.model;
018    
019    import javax.xml.bind.annotation.XmlAccessType;
020    import javax.xml.bind.annotation.XmlAccessorType;
021    import javax.xml.bind.annotation.XmlAttribute;
022    import javax.xml.bind.annotation.XmlRootElement;
023    import javax.xml.bind.annotation.XmlTransient;
024    
025    import org.apache.camel.Endpoint;
026    import org.apache.camel.Processor;
027    import org.apache.camel.processor.PollEnricher;
028    import org.apache.camel.processor.aggregate.AggregationStrategy;
029    import org.apache.camel.spi.RouteContext;
030    
031    /**
032     * Represents an XML <pollEnrich/> element
033     *
034     * @see org.apache.camel.processor.Enricher
035     */
036    @XmlRootElement(name = "pollEnrich")
037    @XmlAccessorType(XmlAccessType.FIELD)
038    public class PollEnrichDefinition extends OutputDefinition<PollEnrichDefinition> {
039    
040        @XmlAttribute(name = "uri", required = true)
041        private String resourceUri;
042    
043        @XmlAttribute(name = "timeout")
044        private Long timeout;
045    
046        @XmlAttribute(name = "strategyRef")
047        private String aggregationStrategyRef;
048    
049        @XmlTransient
050        private AggregationStrategy aggregationStrategy;
051    
052        public PollEnrichDefinition() {
053            this(null, null, 0);
054        }
055    
056        public PollEnrichDefinition(AggregationStrategy aggregationStrategy, String resourceUri, long timeout) {
057            this.aggregationStrategy = aggregationStrategy;
058            this.resourceUri = resourceUri;
059            this.timeout = timeout;
060        }
061    
062        @Override
063        public String toString() {
064            return "PollEnrich[" + resourceUri + " " + aggregationStrategy + "]";
065        }
066    
067        @Override
068        public String getShortName() {
069            return "pollEnrich";
070        }
071    
072        @Override
073        public Processor createProcessor(RouteContext routeContext) throws Exception {
074            Endpoint endpoint = routeContext.resolveEndpoint(resourceUri);
075    
076            PollEnricher enricher;
077            if (timeout != null) {
078                enricher = new PollEnricher(null, endpoint.createPollingConsumer(), timeout);
079            } else {
080                enricher = new PollEnricher(null, endpoint.createPollingConsumer(), 0);
081            }
082    
083            if (aggregationStrategyRef != null) {
084                aggregationStrategy = routeContext.lookup(aggregationStrategyRef, AggregationStrategy.class);
085            }
086            if (aggregationStrategy == null) {
087                enricher.setDefaultAggregationStrategy();
088            } else {
089                enricher.setAggregationStrategy(aggregationStrategy);
090            }
091    
092            return enricher;
093        }
094    
095    }