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