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.Expression; 026 import org.apache.camel.Processor; 027 import org.apache.camel.builder.ExpressionClause; 028 import org.apache.camel.processor.idempotent.IdempotentConsumer; 029 import org.apache.camel.spi.IdempotentRepository; 030 import org.apache.camel.spi.RouteContext; 031 032 /** 033 * Represents an XML <idempotentConsumer/> element 034 * 035 * @version $Revision: 750806 $ 036 */ 037 @XmlRootElement(name = "idempotentConsumer") 038 @XmlAccessorType(XmlAccessType.FIELD) 039 public class IdempotentConsumerDefinition extends ExpressionNode { 040 @XmlAttribute 041 private String messageIdRepositoryRef; 042 @XmlTransient 043 private IdempotentRepository idempotentRepository; 044 045 public IdempotentConsumerDefinition() { 046 } 047 048 public IdempotentConsumerDefinition(Expression messageIdExpression, IdempotentRepository idempotentRepository) { 049 super(messageIdExpression); 050 this.idempotentRepository = idempotentRepository; 051 } 052 053 @Override 054 public String toString() { 055 return "IdempotentConsumer[" + getExpression() + " -> " + getOutputs() + "]"; 056 } 057 058 @Override 059 public String getShortName() { 060 return "idempotentConsumer"; 061 } 062 063 // Fluent API 064 //------------------------------------------------------------------------- 065 /** 066 * Set the expression that IdempotentConsumerType will use 067 * @return the builder 068 */ 069 public ExpressionClause<IdempotentConsumerDefinition> expression() { 070 return ExpressionClause.createAndSetExpression(this); 071 } 072 073 /** 074 * Sets the reference name of the message id repository 075 * 076 * @param messageIdRepositoryRef the reference name of message id repository 077 * @return builder 078 */ 079 public IdempotentConsumerDefinition messageIdRepositoryRef(String messageIdRepositoryRef) { 080 setMessageIdRepositoryRef(messageIdRepositoryRef); 081 return this; 082 } 083 084 /** 085 * Sets the the message id repository for the IdempotentConsumerType 086 * 087 * @param idempotentRepository the repository instance of idempotent 088 * @return builder 089 */ 090 public IdempotentConsumerDefinition messageIdRepository(IdempotentRepository idempotentRepository) { 091 setMessageIdRepository(idempotentRepository); 092 return this; 093 } 094 095 public String getMessageIdRepositoryRef() { 096 return messageIdRepositoryRef; 097 } 098 099 public void setMessageIdRepositoryRef(String messageIdRepositoryRef) { 100 this.messageIdRepositoryRef = messageIdRepositoryRef; 101 } 102 103 public IdempotentRepository getMessageIdRepository() { 104 return idempotentRepository; 105 } 106 107 public void setMessageIdRepository(IdempotentRepository idempotentRepository) { 108 this.idempotentRepository = idempotentRepository; 109 } 110 111 @Override 112 public Processor createProcessor(RouteContext routeContext) throws Exception { 113 Processor childProcessor = routeContext.createProcessor(this); 114 IdempotentRepository idempotentRepository = resolveMessageIdRepository(routeContext); 115 return new IdempotentConsumer(getExpression().createExpression(routeContext), idempotentRepository, 116 childProcessor); 117 } 118 119 /** 120 * Strategy method to resolve the {@link org.apache.camel.spi.IdempotentRepository} to use 121 * 122 * @param routeContext route context 123 * @return the repository 124 */ 125 protected IdempotentRepository resolveMessageIdRepository(RouteContext routeContext) { 126 if (idempotentRepository == null) { 127 idempotentRepository = routeContext.lookup(messageIdRepositoryRef, IdempotentRepository.class); 128 } 129 return idempotentRepository; 130 } 131 }