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.ArrayList;
020 import java.util.List;
021
022 import javax.xml.bind.annotation.XmlAccessType;
023 import javax.xml.bind.annotation.XmlAccessorType;
024 import javax.xml.bind.annotation.XmlElement;
025 import javax.xml.bind.annotation.XmlElementRef;
026 import javax.xml.bind.annotation.XmlRootElement;
027 import javax.xml.bind.annotation.XmlTransient;
028
029 import org.apache.camel.Processor;
030 import org.apache.camel.processor.CatchProcessor;
031 import org.apache.camel.spi.RouteContext;
032 import org.apache.camel.util.ObjectHelper;
033
034 /**
035 * Represents an XML <catch/> element
036 *
037 * @version $Revision: 750806 $
038 */
039 @XmlRootElement(name = "catch")
040 @XmlAccessorType(XmlAccessType.FIELD)
041 public class CatchDefinition extends ProcessorDefinition<CatchDefinition> {
042 @XmlElement(name = "exception")
043 private List<String> exceptions = new ArrayList<String>();
044 @XmlElementRef
045 private List<ProcessorDefinition> outputs = new ArrayList<ProcessorDefinition>();
046 @XmlTransient
047 private List<Class> exceptionClasses;
048
049 public CatchDefinition() {
050 }
051
052 public CatchDefinition(List<Class> exceptionClasses) {
053 this.exceptionClasses = exceptionClasses;
054 }
055
056 public CatchDefinition(Class exceptionType) {
057 exceptionClasses = new ArrayList<Class>();
058 exceptionClasses.add(exceptionType);
059 }
060
061 @Override
062 public String toString() {
063 return "Catch[ " + getExceptionClasses() + " -> " + getOutputs() + "]";
064 }
065
066 @Override
067 public String getShortName() {
068 return "catch";
069 }
070
071 @Override
072 public String getLabel() {
073 return getExceptionClasses().toString();
074 }
075
076 @Override
077 public CatchProcessor createProcessor(RouteContext routeContext) throws Exception {
078 Processor childProcessor = routeContext.createProcessor(this);
079 return new CatchProcessor(getExceptionClasses(), childProcessor);
080 }
081
082 public List<ProcessorDefinition> getOutputs() {
083 return outputs;
084 }
085
086 public void setOutputs(List<ProcessorDefinition> outputs) {
087 this.outputs = outputs;
088 }
089
090 public List<Class> getExceptionClasses() {
091 if (exceptionClasses == null) {
092 exceptionClasses = createExceptionClasses();
093 }
094 return exceptionClasses;
095 }
096
097 public void setExceptionClasses(List<Class> exceptionClasses) {
098 this.exceptionClasses = exceptionClasses;
099 }
100
101 // Fluent API
102 //-------------------------------------------------------------------------
103 /**
104 * Sets the exceptionClasses of the CatchType
105 *
106 * @param exceptionClasses a list of the exception classes
107 * @return the builder
108 */
109 public CatchDefinition exceptionClasses(List<Class> exceptionClasses) {
110 setExceptionClasses(exceptionClasses);
111 return this;
112 }
113
114 /**
115 * Sets the exception class that the CatchType want to catch
116 *
117 * @param exception the exception of class
118 * @return the builder
119 */
120 public CatchDefinition exceptionClasses(Class exception) {
121 List<Class> list = getExceptionClasses();
122 list.add(exception);
123 return this;
124 }
125
126 public List<String> getExceptions() {
127 return exceptions;
128 }
129
130 public void setExceptions(List<String> exceptions) {
131 this.exceptions = exceptions;
132 }
133
134 protected List<Class> createExceptionClasses() {
135 List<String> list = getExceptions();
136 List<Class> answer = new ArrayList<Class>(list.size());
137 for (String name : list) {
138 Class type = ObjectHelper.loadClass(name, getClass().getClassLoader());
139 answer.add(type);
140 }
141 return answer;
142 }
143 }