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.view;
018
019 import java.util.ArrayList;
020 import java.util.List;
021
022 import org.apache.camel.model.AggregateDefinition;
023 import org.apache.camel.model.BeanDefinition;
024 import org.apache.camel.model.ChoiceDefinition;
025 import org.apache.camel.model.FilterDefinition;
026 import org.apache.camel.model.FromDefinition;
027 import org.apache.camel.model.OtherwiseDefinition;
028 import org.apache.camel.model.ProcessorDefinition;
029 import org.apache.camel.model.RecipientListDefinition;
030 import org.apache.camel.model.ResequenceDefinition;
031 import org.apache.camel.model.RoutingSlipDefinition;
032 import org.apache.camel.model.SplitDefinition;
033 import org.apache.camel.model.ToDefinition;
034 import org.apache.camel.model.WhenDefinition;
035
036 import static org.apache.camel.util.ObjectHelper.isEmpty;
037 import static org.apache.camel.util.ObjectHelper.isNotEmpty;
038
039 /**
040 * Represents a node in the EIP diagram tree
041 *
042 * @version $Revision: 883288 $
043 */
044 public class NodeData {
045 public String id;
046 public String image;
047 public String label;
048 public String shape;
049 public String edgeLabel;
050 public String tooltop;
051 public String nodeType;
052 public boolean nodeWritten;
053 public String url;
054 public List<ProcessorDefinition> outputs;
055 public String association = "property";
056
057 @SuppressWarnings("unchecked")
058 public NodeData(String id, Object node, String imagePrefix) {
059 this.id = id;
060
061 if (node instanceof ProcessorDefinition) {
062 ProcessorDefinition<?> processorType = (ProcessorDefinition<?>)node;
063 this.edgeLabel = processorType.getLabel();
064 }
065 if (node instanceof FromDefinition) {
066 FromDefinition fromType = (FromDefinition)node;
067 this.tooltop = fromType.getLabel();
068 this.label = removeQueryString(this.tooltop);
069 this.url = "http://camel.apache.org/message-endpoint.html";
070 } else if (node instanceof ToDefinition) {
071 ToDefinition toType = (ToDefinition)node;
072 this.tooltop = toType.getLabel();
073 this.label = removeQueryString(this.tooltop);
074 this.edgeLabel = "";
075 this.url = "http://camel.apache.org/message-endpoint.html";
076 } else if (node instanceof FilterDefinition) {
077 this.image = imagePrefix + "MessageFilterIcon.png";
078 this.label = "Filter";
079 this.nodeType = "Message Filter";
080 } else if (node instanceof WhenDefinition) {
081 this.image = imagePrefix + "MessageFilterIcon.png";
082 this.nodeType = "When Filter";
083 this.label = "When";
084 this.url = "http://camel.apache.org/content-based-router.html";
085 } else if (node instanceof OtherwiseDefinition) {
086 this.nodeType = "Otherwise";
087 this.edgeLabel = "";
088 this.url = "http://camel.apache.org/content-based-router.html";
089 this.tooltop = "Otherwise";
090 } else if (node instanceof ChoiceDefinition) {
091 this.image = imagePrefix + "ContentBasedRouterIcon.png";
092 this.nodeType = "Content Based Router";
093 this.label = "Choice";
094 this.edgeLabel = "";
095
096 ChoiceDefinition choice = (ChoiceDefinition)node;
097 List<ProcessorDefinition> outputs = new ArrayList<ProcessorDefinition>(choice.getWhenClauses());
098 if (choice.getOtherwise() != null) {
099 outputs.add(choice.getOtherwise());
100 }
101 this.outputs = outputs;
102 } else if (node instanceof RecipientListDefinition) {
103 this.image = imagePrefix + "RecipientListIcon.png";
104 this.nodeType = "Recipient List";
105 } else if (node instanceof RoutingSlipDefinition) {
106 this.image = imagePrefix + "RoutingTableIcon.png";
107 this.nodeType = "Routing Slip";
108 this.url = "http://camel.apache.org/routing-slip.html";
109 this.tooltop = ((RoutingSlipDefinition) node).getHeaderName();
110 } else if (node instanceof SplitDefinition) {
111 this.image = imagePrefix + "SplitterIcon.png";
112 this.nodeType = "Splitter";
113 } else if (node instanceof AggregateDefinition) {
114 this.image = imagePrefix + "AggregatorIcon.png";
115 this.nodeType = "Aggregator";
116 } else if (node instanceof ResequenceDefinition) {
117 this.image = imagePrefix + "ResequencerIcon.png";
118 this.nodeType = "Resequencer";
119 } else if (node instanceof BeanDefinition) {
120 BeanDefinition beanRef = (BeanDefinition) node;
121
122 // TODO
123 //this.image = imagePrefix + "Bean.png";
124 this.nodeType = "Bean Ref";
125 this.label = beanRef.getLabel() + " Bean";
126 this.shape = "box";
127 }
128
129 // lets auto-default as many values as we can
130 if (isEmpty(this.nodeType) && node != null) {
131 // TODO we could add this to the model?
132 String name = node.getClass().getName();
133 int idx = name.lastIndexOf('.');
134 if (idx > 0) {
135 name = name.substring(idx + 1);
136 }
137 if (name.endsWith("Type")) {
138 name = name.substring(0, name.length() - 4);
139 }
140 this.nodeType = insertSpacesBetweenCamelCase(name);
141 }
142 if (this.label == null) {
143 if (isEmpty(this.image)) {
144 this.label = this.nodeType;
145 this.shape = "box";
146 } else if (isNotEmpty(this.edgeLabel)) {
147 this.label = "";
148 } else {
149 this.label = node.toString();
150 }
151 }
152 if (isEmpty(this.tooltop)) {
153 if (isNotEmpty(this.nodeType)) {
154 String description = isNotEmpty(this.edgeLabel) ? this.edgeLabel : this.label;
155 this.tooltop = this.nodeType + ": " + description;
156 } else {
157 this.tooltop = this.label;
158 }
159 }
160 if (isEmpty(this.url) && isNotEmpty(this.nodeType)) {
161 this.url = "http://camel.apache.org/" + this.nodeType.toLowerCase().replace(' ', '-') + ".html";
162 }
163 if (node instanceof ProcessorDefinition && this.outputs == null) {
164 ProcessorDefinition processorType = (ProcessorDefinition)node;
165 this.outputs = processorType.getOutputs();
166 }
167 }
168
169 protected String removeQueryString(String text) {
170 int idx = text.indexOf('?');
171 if (idx <= 0) {
172 return text;
173 } else {
174 return text.substring(0, idx);
175 }
176 }
177
178 /**
179 * Lets insert a space before each upper case letter after a lowercase
180 */
181 public static String insertSpacesBetweenCamelCase(String name) {
182 boolean lastCharacterLowerCase = false;
183 StringBuffer buffer = new StringBuffer();
184 int i = 0;
185 for (int size = name.length(); i < size; i++) {
186 char ch = name.charAt(i);
187 if (Character.isUpperCase(ch)) {
188 if (lastCharacterLowerCase) {
189 buffer.append(' ');
190 }
191 lastCharacterLowerCase = false;
192 } else {
193 lastCharacterLowerCase = true;
194 }
195 buffer.append(ch);
196 }
197 return buffer.toString();
198 }
199 }