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.impl.RouteContext; 027 import org.apache.camel.processor.DelegateProcessor; 028 029 /** 030 * @version $Revision: 36565 $ 031 */ 032 @XmlRootElement(name = "interceptor") 033 @XmlAccessorType(XmlAccessType.FIELD) 034 public class InterceptorRef extends InterceptorType { 035 @XmlAttribute(required = true) 036 private String ref; 037 @XmlTransient 038 private DelegateProcessor interceptor; 039 040 public InterceptorRef() { 041 } 042 043 public InterceptorRef(String ref) { 044 setRef(ref); 045 } 046 047 public InterceptorRef(DelegateProcessor interceptor) { 048 this.interceptor = interceptor; 049 } 050 051 @Override 052 public String toString() { 053 return "Interceptor[" + getLabel() + "]"; 054 } 055 056 @Override 057 public Processor createProcessor(RouteContext routeContext) throws Exception { 058 DelegateProcessor processor = createInterceptor(routeContext); 059 Processor child = createOutputsProcessor(routeContext); 060 processor.setProcessor(child); 061 return processor; 062 } 063 064 public DelegateProcessor createInterceptor(RouteContext routeContext) { 065 if (interceptor == null) { 066 interceptor = routeContext.lookup(getRef(), DelegateProcessor.class); 067 } 068 if (interceptor == null) { 069 throw new IllegalArgumentException("No DelegateProcessor bean available for reference: " + getRef()); 070 } 071 return interceptor; 072 } 073 074 public String getRef() { 075 return ref; 076 } 077 078 public void setRef(String ref) { 079 this.ref = ref; 080 } 081 082 public String getLabel() { 083 if (ref != null) { 084 return "ref: " + ref; 085 } else if (interceptor != null) { 086 return interceptor.toString(); 087 } else { 088 return ""; 089 } 090 } 091 092 /** 093 * Get the underlying {@link DelegateProcessor} implementation 094 * 095 * @return the {@link DelegateProcessor} 096 */ 097 @XmlTransient 098 public DelegateProcessor getInterceptor() { 099 return interceptor; 100 } 101 }