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 */ 017package org.apache.camel.blueprint; 018 019import java.util.Set; 020 021import javax.xml.bind.annotation.XmlAccessType; 022import javax.xml.bind.annotation.XmlAccessorType; 023import javax.xml.bind.annotation.XmlAttribute; 024import javax.xml.bind.annotation.XmlElement; 025import javax.xml.bind.annotation.XmlRootElement; 026import javax.xml.bind.annotation.XmlTransient; 027 028import org.apache.camel.CamelContext; 029import org.apache.camel.Processor; 030import org.apache.camel.builder.DefaultErrorHandlerBuilder; 031import org.apache.camel.builder.ErrorHandlerBuilder; 032import org.apache.camel.core.xml.AbstractCamelFactoryBean; 033import org.apache.camel.model.RedeliveryPolicyDefinition; 034import org.apache.camel.processor.errorhandler.RedeliveryPolicy; 035import org.apache.camel.reifier.errorhandler.ErrorHandlerReifier; 036import org.osgi.service.blueprint.container.BlueprintContainer; 037 038@XmlRootElement(name = "errorHandler") 039@XmlAccessorType(XmlAccessType.FIELD) 040public class CamelErrorHandlerFactoryBean extends AbstractCamelFactoryBean<ErrorHandlerBuilder> { 041 042 @XmlAttribute 043 private ErrorHandlerType type = ErrorHandlerType.DefaultErrorHandler; 044 @XmlAttribute 045 private String deadLetterUri; 046 @XmlAttribute 047 private Boolean deadLetterHandleNewException; 048 @XmlAttribute 049 private Boolean useOriginalMessage; 050 @XmlAttribute 051 private Boolean useOriginalBody; 052 @XmlAttribute 053 private String onRedeliveryRef; 054 @XmlAttribute 055 private String onPrepareFailureRef; 056 @XmlAttribute 057 private String onExceptionOccurredRef; 058 @XmlAttribute 059 private String retryWhileRef; 060 @XmlAttribute 061 private String executorServiceRef; 062 @XmlAttribute 063 private String redeliveryPolicyRef; 064 @XmlElement 065 private RedeliveryPolicyDefinition redeliveryPolicy; 066 @XmlTransient 067 private BlueprintContainer blueprintContainer; 068 069 @Override 070 public ErrorHandlerBuilder getObject() throws Exception { 071 ErrorHandlerBuilder errorHandler = getObjectType().newInstance(); 072 if (errorHandler instanceof DefaultErrorHandlerBuilder) { 073 DefaultErrorHandlerBuilder handler = (DefaultErrorHandlerBuilder) errorHandler; 074 if (deadLetterUri != null) { 075 handler.setDeadLetterUri(deadLetterUri); 076 } 077 if (deadLetterHandleNewException != null) { 078 handler.setDeadLetterHandleNewException(deadLetterHandleNewException); 079 } 080 if (useOriginalMessage != null) { 081 handler.setUseOriginalMessage(useOriginalMessage); 082 } 083 if (useOriginalBody != null) { 084 handler.setUseOriginalBody(useOriginalBody); 085 } 086 if (redeliveryPolicy != null) { 087 handler.setRedeliveryPolicy(ErrorHandlerReifier.createRedeliveryPolicy(redeliveryPolicy, getCamelContext(), null)); 088 } 089 if (redeliveryPolicyRef != null) { 090 handler.setRedeliveryPolicy(lookup(redeliveryPolicyRef, RedeliveryPolicy.class)); 091 } 092 if (onRedeliveryRef != null) { 093 handler.setOnRedelivery(lookup(onRedeliveryRef, Processor.class)); 094 } 095 if (onPrepareFailureRef != null) { 096 handler.setOnPrepareFailure(lookup(onPrepareFailureRef, Processor.class)); 097 } 098 if (onExceptionOccurredRef != null) { 099 handler.setOnExceptionOccurred(lookup(onExceptionOccurredRef, Processor.class)); 100 } 101 if (retryWhileRef != null) { 102 handler.setRetryWhileRef(retryWhileRef); 103 } 104 if (executorServiceRef != null) { 105 handler.setExecutorServiceRef(executorServiceRef); 106 } 107 } 108 return errorHandler; 109 } 110 111 @Override 112 public Class<? extends ErrorHandlerBuilder> getObjectType() { 113 return type.getTypeAsClass(); 114 } 115 116 public void setBlueprintContainer(BlueprintContainer blueprintContainer) { 117 this.blueprintContainer = blueprintContainer; 118 } 119 120 @Override 121 protected CamelContext getCamelContextWithId(String camelContextId) { 122 if (blueprintContainer != null) { 123 return (CamelContext) blueprintContainer.getComponentInstance(camelContextId); 124 } 125 return null; 126 } 127 128 @Override 129 protected CamelContext discoverDefaultCamelContext() { 130 if (blueprintContainer != null) { 131 Set<String> ids = BlueprintCamelContextLookupHelper.lookupBlueprintCamelContext(blueprintContainer); 132 if (ids.size() == 1) { 133 // there is only 1 id for a BlueprintCamelContext so fallback and use this 134 return getCamelContextWithId(ids.iterator().next()); 135 } 136 } 137 return null; 138 } 139 140 protected <T> T lookup(String name, Class<T> type) { 141 return type.cast(blueprintContainer.getComponentInstance(name)); 142 } 143 144}