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.Processor; 026 import org.apache.camel.processor.DelegateProcessor; 027 import org.apache.camel.spi.RouteContext; 028 029 /** 030 * Base class for interceptor types. 031 * 032 * @version $Revision: 43540 $ 033 */ 034 @XmlRootElement(name = "interceptor") 035 @XmlAccessorType(XmlAccessType.FIELD) 036 public class InterceptorRef extends InterceptorType { 037 @XmlAttribute(required = true) 038 private String ref; 039 @XmlTransient 040 private DelegateProcessor interceptor; 041 042 public InterceptorRef() { 043 } 044 045 public InterceptorRef(String ref) { 046 setRef(ref); 047 } 048 049 public InterceptorRef(DelegateProcessor interceptor) { 050 this.interceptor = interceptor; 051 } 052 053 @Override 054 public String toString() { 055 return "Interceptor[" + getLabel() + "]"; 056 } 057 058 @Override 059 public String getShortName() { 060 return "interceptor"; 061 } 062 063 @Override 064 public Processor createProcessor(RouteContext routeContext) throws Exception { 065 DelegateProcessor processor = createInterceptor(routeContext); 066 Processor child = createOutputsProcessor(routeContext); 067 processor.setProcessor(child); 068 return processor; 069 } 070 071 public DelegateProcessor createInterceptor(RouteContext routeContext) { 072 if (interceptor == null) { 073 interceptor = routeContext.lookup(getRef(), DelegateProcessor.class); 074 } 075 if (interceptor == null) { 076 throw new IllegalArgumentException("No DelegateProcessor bean available for reference: " + getRef()); 077 } 078 return interceptor; 079 } 080 081 public String getRef() { 082 return ref; 083 } 084 085 public void setRef(String ref) { 086 this.ref = ref; 087 } 088 089 public String getLabel() { 090 if (ref != null) { 091 return "ref: " + ref; 092 } else if (interceptor != null) { 093 return interceptor.toString(); 094 } else { 095 return ""; 096 } 097 } 098 099 /** 100 * Get the underlying {@link DelegateProcessor} implementation 101 * 102 * @return the {@link DelegateProcessor} 103 */ 104 @XmlTransient 105 public DelegateProcessor getInterceptor() { 106 return interceptor; 107 } 108 }