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.ProcessorDefinition;
024
025 /**
026 * A simple {@link RouteBuilder} which can be configured directly with one or more from URIs, zero or more to URIs
027 * and an optional bean processing step.
028 *
029 * @version $Revision: 750806 $
030 */
031 public class SimpleRouteBuilder extends RouteBuilder {
032 private List<String> fromUris = new ArrayList<String>();
033 private List<String> toUris = new ArrayList<String>();
034 private Class beanType;
035 private String beanClass;
036 private String beanRef;
037 private String beanMethod;
038
039 public void configure() throws Exception {
040 if (fromUris.isEmpty()) {
041 throw new IllegalArgumentException("the fromUris property must contain at least one valid URI");
042 }
043 for (String fromUri : fromUris) {
044 ProcessorDefinition route = from(fromUri);
045
046 route = addBeanCall(route);
047 for (String toUri : toUris) {
048 route = route.to(toUri);
049 }
050 }
051 }
052
053 // Properties
054 //-------------------------------------------------------------------------
055 public void setFromUri(String uri) {
056 setFromUris(singletonList(uri));
057 }
058
059 public void setToUri(String uri) {
060 setToUris(singletonList(uri));
061 }
062
063 public List<String> getFromUris() {
064 return fromUris;
065 }
066
067 public void setFromUris(List<String> fromUris) {
068 this.fromUris = fromUris;
069 }
070
071 public List<String> getToUris() {
072 return toUris;
073 }
074
075 public void setToUris(List<String> toUris) {
076 this.toUris = toUris;
077 }
078
079 public String getBeanClass() {
080 return beanClass;
081 }
082
083 public void setBeanClass(String beanClass) {
084 this.beanClass = beanClass;
085 }
086
087 public String getBeanRef() {
088 return beanRef;
089 }
090
091 public void setBeanRef(String beanRef) {
092 this.beanRef = beanRef;
093 }
094
095 public Class getBeanType() {
096 if (beanType == null) {
097 if (beanClass != null) {
098 beanType = getContext().getClassResolver().resolveClass(beanClass, getClass().getClassLoader());
099 }
100 }
101 return beanType;
102 }
103
104 public void setBeanType(Class beanType) {
105 this.beanType = beanType;
106 }
107
108 public String getBeanMethod() {
109 return beanMethod;
110 }
111
112 public void setBeanMethod(String beanMethod) {
113 this.beanMethod = beanMethod;
114 }
115
116 // Implementation methods
117 //-------------------------------------------------------------------------
118
119 protected ProcessorDefinition addBeanCall(ProcessorDefinition route) {
120 Class type = getBeanType();
121 if (type != null) {
122 if (beanMethod != null) {
123 route = route.bean(type, beanMethod);
124 } else {
125 route = route.bean(type);
126 }
127 } else if (beanRef != null) {
128 if (beanMethod != null) {
129 route = route.beanRef(beanRef, beanMethod);
130 } else {
131 route = route.beanRef(beanRef);
132 }
133 }
134 return route;
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 }