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