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1 package org.oddjob.monitor.model;
2
3 import java.util.Enumeration  ;
4 import java.util.HashMap ;
5 import java.util.Map ;
6 import java.util.Vector ;
7
8 import javax.swing.tree.TreeNode ;
9
10 import org.oddjob.Iconic;
11 import org.oddjob.Structural;
12 import org.oddjob.images.IconEvent;
13 import org.oddjob.images.IconHelper;
14 import org.oddjob.images.IconListener;
15 import org.oddjob.images.IconTip;
16 import org.oddjob.images.NoSuchIconException;
17 import org.oddjob.scheduling.OddjobScheduler;
18 import org.oddjob.structural.StructuralEvent;
19 import org.oddjob.structural.StructuralListener;
20
21
27
28
29 public class JobTreeNode
30 implements TreeNode , StructuralListener {
31
32
33 private final Vector nodeList = new Vector ();
34
35
36 final private JobTreeNode parent;
37
38
39 final private JobTreeModel model;
40
41
42 private final OurIconListener iconListener = new OurIconListener();
43 private volatile IconTip iconTip = IconHelper.nullIcon;
44
45
46 final private Object component;
47
48 final private ExplorerContext explorerContext;
49
50
56 public JobTreeNode(ExplorerModel explorerModel, JobTreeModel model) {
57 this.parent = null;
58 this.model = model;
59 this.component = explorerModel.getRoot();
60 this.explorerContext = new ExplorerContext(explorerModel);
61 }
62
63
69 public JobTreeNode(JobTreeNode parent, Object node) {
70 if (parent == null) {
71 throw new NullPointerException ("Parent must not be null!");
72 }
73 this.parent = parent;
74 this.model = parent.model;
75 this.component = node;
76
77 this.explorerContext = new ExplorerContext(node, parent.getExplorerContext());
78 }
79
80
81
85 public void build() {
86 if (component instanceof Structural) {
87 ((Structural)component).addStructuralListener(this);
88 }
89 }
90
91 public void visible() {
92 iconListener.listen();
93 }
94
95 public void inVisible() {
96 iconListener.dont();
97 }
98
99 public void setIcon(IconTip iconTip) {
100 synchronized (this) {
101 this.iconTip = iconTip;
102 }
103 model.fireTreeNodesChanged(this);
104 }
105
106 public Object getComponent() {
107 return component;
108 }
109
110
112 public Enumeration children() {
113 return nodeList.elements();
114 }
115
116 public boolean getAllowsChildren() {
117 return true;
118 }
119
120 public TreeNode getChildAt(int index) {
121 return (JobTreeNode)nodeList.elementAt(index);
122 }
123
124 public int getChildCount() {
125 return nodeList.size();
126 }
127
128 public boolean isLeaf() {
129 return nodeList.size() == 0 ? true : false;
130 }
131
132 public int getIndex(TreeNode child) {
133
134 return nodeList.indexOf(child);
135 }
136
137 public TreeNode getParent() {
138
139 return parent;
140 }
141
142 public String toString() {
143 return component.toString();
144 }
145
146 synchronized public IconTip getIcon() {
147 return iconTip;
148 }
149
150 public JobTreeNode[] getChildren() {
151 synchronized (nodeList) {
152 return (JobTreeNode[]) nodeList.toArray(new JobTreeNode[0]);
153 }
154 }
155
156
160 public void childAdded(StructuralEvent e) {
161
162 int index = e.getIndex();
163 JobTreeNode child = new JobTreeNode(this, e.getChild());
164
165 synchronized (nodeList) {
166 nodeList.insertElementAt(child, index);
167 }
168
169 model.fireTreeNodesInserted(this, child, index);
170 child.build();
171 }
172
173
177 public void childRemoved(StructuralEvent e) {
178
179 int index = e.getIndex();
180 JobTreeNode child = null;
181 synchronized (nodeList) {
182 child = (JobTreeNode)nodeList.elementAt(index);
183 nodeList.removeElementAt(index);
184 }
185 child.destroy();
186
187 model.fireTreeNodesRemoved(this, child, index);
188 }
189
190 public void destroy() {
191 while (nodeList.size() > 0) {
192 int index= nodeList.size() - 1;
193 JobTreeNode child = (JobTreeNode)nodeList.remove(index);
194 child.destroy();
195 model.fireTreeNodesRemoved(this, child, index);
196 }
197
198 if (component instanceof Structural) {
199 ((Structural)component).removeStructuralListener(this);
200 }
201 if (component instanceof OddjobScheduler) {
202 explorerContext.getSchedulerTraker().removeSchedule(
203 (OddjobScheduler) component);
204 }
205 }
206
207 class OurIconListener implements IconListener {
208 private final Map icons = new HashMap ();
209
210 void listen() {
211 if (component instanceof Iconic) {
212 ((Iconic)component).addIconListener(this);
213 }
214 }
215
216 public void iconEvent(IconEvent event) {
217 String iconId = event.getIconId();
218 IconTip it = (IconTip) icons.get(iconId);
219 if (it == null) {
220 try {
221 it = ((Iconic)component).iconForId(iconId);
222 } catch (NoSuchIconException e) {
223 e.printStackTrace();
224 it = IconHelper.nullIcon;
225 }
226 icons.put(iconId, it);
227 }
228 setIcon(it);
229 }
230
231 public void dont() {
232 if (component instanceof Iconic) {
233 ((Iconic)component).removeIconListener(this);
234 }
235 }
236 }
237
238
241 public ExplorerContext getExplorerContext() {
242 return explorerContext;
243 }
244 }
245 |
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