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 import static org.apache.camel.util.ObjectHelper.notNull;
029
030 /**
031 * Base class for interceptor types.
032 *
033 * @version $Revision: 751357 $
034 */
035 @XmlRootElement(name = "interceptor")
036 @XmlAccessorType(XmlAccessType.FIELD)
037 public class InterceptorDefinition extends AbstractInterceptorDefinition {
038 @XmlAttribute(required = true)
039 private String ref;
040 @XmlTransient
041 private DelegateProcessor interceptor;
042
043 public InterceptorDefinition() {
044 }
045
046 public InterceptorDefinition(String ref) {
047 setRef(ref);
048 }
049
050 public InterceptorDefinition(DelegateProcessor interceptor) {
051 this.interceptor = interceptor;
052 }
053
054 @Override
055 public String toString() {
056 return "Interceptor[" + getLabel() + "]";
057 }
058
059 @Override
060 public String getShortName() {
061 return "interceptor";
062 }
063
064 @Override
065 public Processor createProcessor(RouteContext routeContext) throws Exception {
066 DelegateProcessor processor = createInterceptor(routeContext);
067 Processor child = createOutputsProcessor(routeContext);
068 processor.setProcessor(child);
069 return processor;
070 }
071
072 public DelegateProcessor createInterceptor(RouteContext routeContext) {
073 if (interceptor == null) {
074 interceptor = routeContext.lookup(getRef(), DelegateProcessor.class);
075 }
076 notNull(interceptor, "registry entry called " + getRef(), this);
077 return interceptor;
078 }
079
080 public String getRef() {
081 return ref;
082 }
083
084 public void setRef(String ref) {
085 this.ref = ref;
086 }
087
088 public String getLabel() {
089 if (ref != null) {
090 return "ref: " + ref;
091 } else if (interceptor != null) {
092 return interceptor.toString();
093 } else {
094 return "";
095 }
096 }
097
098 /**
099 * Get the underlying {@link DelegateProcessor} implementation
100 */
101 @XmlTransient
102 public DelegateProcessor getInterceptor() {
103 return interceptor;
104 }
105 }