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 java.util.Collection; 020 021 import javax.xml.bind.annotation.XmlAccessType; 022 import javax.xml.bind.annotation.XmlAccessorType; 023 import javax.xml.bind.annotation.XmlRootElement; 024 import javax.xml.bind.annotation.XmlTransient; 025 026 import org.apache.camel.Endpoint; 027 import org.apache.camel.Exchange; 028 import org.apache.camel.Expression; 029 import org.apache.camel.Processor; 030 import org.apache.camel.Route; 031 import org.apache.camel.impl.RouteContext; 032 import org.apache.camel.model.language.ExpressionType; 033 import org.apache.camel.processor.Aggregator; 034 import org.apache.camel.processor.aggregate.AggregationStrategy; 035 import org.apache.camel.processor.aggregate.UseLatestAggregationStrategy; 036 037 /** 038 * @version $Revision: 1.1 $ 039 */ 040 @XmlRootElement(name = "aggregator") 041 @XmlAccessorType(XmlAccessType.FIELD) 042 public class AggregatorType extends ExpressionNode { 043 @XmlTransient 044 private AggregationStrategy aggregationStrategy = new UseLatestAggregationStrategy(); 045 046 public AggregatorType() { 047 } 048 049 public AggregatorType(Expression correlationExpression) { 050 super(correlationExpression); 051 } 052 053 public AggregatorType(ExpressionType correlationExpression) { 054 super(correlationExpression); 055 } 056 057 public AggregatorType(Expression correlationExpression, AggregationStrategy aggregationStrategy) { 058 super(correlationExpression); 059 this.aggregationStrategy = aggregationStrategy; 060 } 061 062 @Override 063 public String toString() { 064 return "Aggregator[ " + getExpression() + " -> " + getOutputs() + "]"; 065 } 066 067 @Override 068 public void addRoutes(RouteContext routeContext, Collection<Route> routes) throws Exception { 069 Endpoint from = routeContext.getEndpoint(); 070 final Processor processor = routeContext.createProcessor(this); 071 final Aggregator service = new Aggregator(from, processor, getExpression() 072 .createExpression(routeContext), aggregationStrategy); 073 074 Route route = new Route<Exchange>(from, service) { 075 @Override 076 public String toString() { 077 return "AggregatorRoute[" + getEndpoint() + " -> " + processor + "]"; 078 } 079 }; 080 081 routes.add(route); 082 } 083 084 public AggregationStrategy getAggregationStrategy() { 085 return aggregationStrategy; 086 } 087 088 public void setAggregationStrategy(AggregationStrategy aggregationStrategy) { 089 this.aggregationStrategy = aggregationStrategy; 090 } 091 }