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.AsyncProcessor;
026 import org.apache.camel.Processor;
027 import org.apache.camel.Service;
028 import org.apache.camel.processor.DelegateAsyncProcessor;
029 import org.apache.camel.processor.DelegateSyncProcessor;
030 import org.apache.camel.spi.Required;
031 import org.apache.camel.spi.RouteContext;
032 import org.apache.camel.util.ObjectHelper;
033
034 /**
035 * Represents an XML <process/> element
036 *
037 * @version
038 */
039 @XmlRootElement(name = "process")
040 @XmlAccessorType(XmlAccessType.FIELD)
041 public class ProcessDefinition extends NoOutputDefinition<ProcessDefinition> {
042 @XmlAttribute(required = true)
043 private String ref;
044 @XmlTransient
045 private Processor processor;
046
047 public ProcessDefinition() {
048 }
049
050 public ProcessDefinition(Processor processor) {
051 this.processor = processor;
052 }
053
054 @Override
055 public String getShortName() {
056 return "process";
057 }
058
059 @Override
060 public String toString() {
061 return "process["
062 + ((ref != null) ? "ref:" + ref : processor)
063 + "]";
064 }
065
066 @Override
067 public String getLabel() {
068 if (ref != null) {
069 return "ref:" + ref;
070 } else if (processor != null) {
071 return processor.toString();
072 } else {
073 return "";
074 }
075 }
076
077 public String getRef() {
078 return ref;
079 }
080
081 @Required
082 public void setRef(String ref) {
083 this.ref = ref;
084 }
085
086 @Override
087 public Processor createProcessor(RouteContext routeContext) {
088 Processor answer = processor;
089 if (processor == null) {
090 ObjectHelper.notNull(ref, "ref", this);
091 answer = routeContext.mandatoryLookup(getRef(), Processor.class);
092 }
093
094 // ensure its wrapped in a Service so we can manage it from eg. JMX
095 // (a Processor must be a Service to be enlisted in JMX)
096 if (!(answer instanceof Service)) {
097 if (answer instanceof AsyncProcessor) {
098 // the processor is async by nature so use the async delegate
099 answer = new DelegateAsyncProcessor(answer);
100 } else {
101 // the processor is sync by nature so use the sync delegate
102 answer = new DelegateSyncProcessor(answer);
103 }
104 }
105 return answer;
106 }
107 }