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: 1967 $ 038 */ 039 @XmlRootElement(name = "catch") 040 @XmlAccessorType(XmlAccessType.FIELD) 041 public class CatchType extends ProcessorType<CatchType> { 042 @XmlElement(name = "exception") 043 private List<String> exceptions = new ArrayList<String>(); 044 @XmlElementRef 045 private List<ProcessorType<?>> outputs = new ArrayList<ProcessorType<?>>(); 046 @XmlTransient 047 private List<Class> exceptionClasses; 048 049 public CatchType() { 050 } 051 052 public CatchType(List<Class> exceptionClasses) { 053 this.exceptionClasses = exceptionClasses; 054 } 055 056 public CatchType(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<ProcessorType<?>> getOutputs() { 083 return outputs; 084 } 085 086 public void setOutputs(List<ProcessorType<?>> 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 public List<String> getExceptions() { 102 return exceptions; 103 } 104 105 public void setExceptions(List<String> exceptions) { 106 this.exceptions = exceptions; 107 } 108 109 protected List<Class> createExceptionClasses() { 110 List<String> list = getExceptions(); 111 List<Class> answer = new ArrayList<Class>(list.size()); 112 for (String name : list) { 113 Class type = ObjectHelper.loadClass(name, getClass().getClassLoader()); 114 answer.add(type); 115 } 116 return answer; 117 } 118 }