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.spring.util;
018
019 import java.util.ArrayList;
020 import java.util.List;
021
022 import org.apache.camel.builder.RouteBuilder;
023 import org.apache.camel.model.ProcessorType;
024 import org.apache.camel.util.ObjectHelper;
025
026 /**
027 * A simple {@link RouteBuilder} which can be configured directly with one or more from URIs, zero or more to URIs
028 * and an optional bean processing step.
029 *
030 * @version $Revision: 641676 $
031 */
032 public class SimpleRouteBuilder extends RouteBuilder {
033 private List<String> fromUris = new ArrayList<String>();
034 private List<String> toUris = new ArrayList<String>();
035 private Class beanType;
036 private String beanClass;
037 private String beanRef;
038 private String beanMethod;
039
040 public void configure() throws Exception {
041 if (fromUris.isEmpty()) {
042 throw new IllegalArgumentException("the fromUris property must contain at least one valid URI");
043 }
044 for (String fromUri : fromUris) {
045 ProcessorType route = from(fromUri);
046
047 addBeanCall(route);
048 for (String toUri : toUris) {
049 route = route.to(toUri);
050 }
051 }
052 }
053
054 // Properties
055 //-------------------------------------------------------------------------
056 public void setFromUri(String uri) {
057 setFromUris(singletonList(uri));
058 }
059
060 public void setToUri(String uri) {
061 setToUris(singletonList(uri));
062 }
063
064 public List<String> getFromUris() {
065 return fromUris;
066 }
067
068 public void setFromUris(List<String> fromUris) {
069 this.fromUris = fromUris;
070 }
071
072 public List<String> getToUris() {
073 return toUris;
074 }
075
076 public void setToUris(List<String> toUris) {
077 this.toUris = toUris;
078 }
079
080 public String getBeanClass() {
081 return beanClass;
082 }
083
084 public void setBeanClass(String beanClass) {
085 this.beanClass = beanClass;
086 }
087
088 public String getBeanRef() {
089 return beanRef;
090 }
091
092 public void setBeanRef(String beanRef) {
093 this.beanRef = beanRef;
094 }
095
096 public Class getBeanType() {
097 if (beanType == null) {
098 if (beanClass != null) {
099 beanType = ObjectHelper.loadClass(beanClass, getClass().getClassLoader());
100 }
101 }
102 return beanType;
103 }
104
105 public void setBeanType(Class beanType) {
106 this.beanType = beanType;
107 }
108
109 public String getBeanMethod() {
110 return beanMethod;
111 }
112
113 public void setBeanMethod(String beanMethod) {
114 this.beanMethod = beanMethod;
115 }
116
117 // Implementation methods
118 //-------------------------------------------------------------------------
119
120 protected void addBeanCall(ProcessorType route) {
121 Class type = getBeanType();
122 if (type != null) {
123 if (beanMethod != null) {
124 route = route.bean(type, beanMethod);
125 } else {
126 route = route.bean(type);
127 }
128 } else if (beanRef != null) {
129 if (beanMethod != null) {
130 route = route.beanRef(beanRef, beanMethod);
131 } else {
132 route = route.beanRef(beanRef);
133 }
134 }
135 }
136
137 protected List<String> singletonList(String value) {
138 List<String> uris = new ArrayList<String>();
139 uris.add(value);
140 return uris;
141 }
142 }