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.impl.RouteContext; 026 import org.apache.camel.processor.DelegateProcessor; 027 028 /** 029 * @version $Revision: 1.1 $ 030 */ 031 @XmlRootElement(name = "interceptor") 032 @XmlAccessorType(XmlAccessType.FIELD) 033 public class InterceptorRef extends InterceptorType { 034 @XmlAttribute(required = true) 035 private String ref; 036 @XmlTransient 037 private DelegateProcessor interceptor; 038 039 public InterceptorRef() { 040 } 041 042 public InterceptorRef(String ref) { 043 setRef(ref); 044 } 045 046 public InterceptorRef(DelegateProcessor interceptor) { 047 this.interceptor = interceptor; 048 } 049 050 @Override 051 public String toString() { 052 return "Interceptor[" + description() + "]"; 053 } 054 055 public DelegateProcessor createInterceptor(RouteContext routeContext) { 056 if (interceptor == null) { 057 interceptor = routeContext.lookup(getRef(), DelegateProcessor.class); 058 } 059 if (interceptor == null) { 060 throw new IllegalArgumentException("No DelegateProcessor bean available for reference: " + getRef()); 061 } 062 return interceptor; 063 } 064 065 public String getRef() { 066 return ref; 067 } 068 069 public void setRef(String ref) { 070 this.ref = ref; 071 } 072 073 protected String description() { 074 if (interceptor != null) { 075 return interceptor.toString(); 076 } else { 077 return "ref: " + ref; 078 } 079 } 080 }