|
1
26
27
28 package org.objectweb.mobilitools.util.corba;
29
30
31 import java.awt.*;
32 import org.omg.CORBA.*;
33 import java.awt.event.*;
34 import org.objectweb.mobilitools.util.gui.AlertWindow;
35
36
62 public class NSbrowser extends Frame implements ActionListener, ItemListener
63 {
64 Button upBtn, downBtn, updateBtn, viewBtn, bindBtn, unbindBtn, destroyBtn;
65 List bindingsLst;
66 NameService my_ns;
67 ORB my_orb;
68 NSbinding[] bindings;
69 String  path;
70 static boolean standalone = false;
71
72
73
77 static public void main(String [] args)
78 {
79 try
80 {
81 ORB orb = ORB.init(args, null);
82 standalone = true;
83 new NSbrowser(orb, new NameService(orb));
84 }
85 catch (NameServiceException e)
86 {
87 System.err.println(e.toString());
88 e.printStackTrace();
89 }
90 }
91
92
93
99 NSbrowser(ORB the_orb, NameService the_ns)
100 {
101 my_orb = the_orb;
102 my_ns = the_ns;
103 path = "/";
104 setLayout(new BorderLayout());
105 Panel navigationPnl = new Panel();
106 navigationPnl.setLayout(new FlowLayout());
107 navigationPnl.add(upBtn = new Button("up"));
108 upBtn.addActionListener(this);
109 navigationPnl.add(downBtn = new Button("down"));
110 downBtn.addActionListener(this);
111 navigationPnl.add(updateBtn = new Button("update"));
112 updateBtn.addActionListener(this);
113 add("North", navigationPnl);
114 add("Center", bindingsLst = new List());
115 bindingsLst.addActionListener(this);
116 bindingsLst.addItemListener(this);
117 Panel editionPnl = new Panel();
118 editionPnl.setLayout(new FlowLayout());
119 editionPnl.add(viewBtn = new Button("view"));
120 viewBtn.addActionListener(this);
121 editionPnl.add(bindBtn = new Button("bind"));
122 bindBtn.addActionListener(this);
123 editionPnl.add(unbindBtn = new Button("unbind"));
124 unbindBtn.addActionListener(this);
125 editionPnl.add(destroyBtn = new Button("destroy"));
126 destroyBtn.addActionListener(this);
127 add("South", editionPnl);
128 updateBindings();
129 addWindowListener(new OnWindowClosing());
130 pack();
131 show();
132 }
133
134
135 void updateBindings()
136 {
137 try
138 {
139 bindings = my_ns.list(path);
140 if (bindingsLst.getItemCount() > 0)
141 {
142 bindingsLst.removeAll();
143 }
144 for (int i=0 ; i<bindings.length ; ++i)
145 {
146 if (bindings[i].type == NSbinding.OBJECT)
147 {
148 bindingsLst.add(bindings[i].name + "!" + bindings[i].kind);
149 }
150 else
151 {
152 bindingsLst.add(bindings[i].name + "!" + bindings[i].kind + "/");
153 }
154 }
155 setTitle(path);
156 viewBtn.setEnabled(false);
157 unbindBtn.setEnabled(false);
158 destroyBtn.setEnabled(false);
159 downBtn.setEnabled(false);
160 if (path.equals("/"))
161 {
162 upBtn.setEnabled(false);
163 }
164 else
165 {
166 upBtn.setEnabled(true);
167 }
168 }
169 catch (NameServiceException e)
170 {
171 new AlertWindow(this, "Name Service Exception", e.toString(), "OK");
172 e.printStackTrace();
173 }
174 }
175
176
177
181
182 public void actionPerformed(ActionEvent evt)
183 {
184 if (evt.getSource() == upBtn)
185 {
186 try
187 {
188 path = path.substring(0, 1 + path.substring(0, path.length()-1).lastIndexOf("/"));
189 }
190 catch (StringIndexOutOfBoundsException e)
191 {
192 path = "/";
193 }
194 updateBindings();
195 }
196 else if (evt.getSource() == downBtn || evt.getSource() == bindingsLst)
197 {
198 if (bindings[bindingsLst.getSelectedIndex()].type == NSbinding.CONTEXT)
199 {
200 path = path + bindingsLst.getSelectedItem();
201 updateBindings();
202 }
203 }
204 else if (evt.getSource() == updateBtn)
205 {
206 updateBindings();
207 }
208 else if (evt.getSource() == viewBtn)
209 {
210 new AlertWindow(
211 this,
212 path + bindingsLst.getSelectedItem(),
213 my_orb.object_to_string(bindings[bindingsLst.getSelectedIndex()].object),
214 "OK");
215 }
216 else if (evt.getSource() == bindBtn)
217 {
218 Dialog bindDlg = new Dialog(this, "Add a binding in " + path, true);
219 TextArea refTxt;
220 TextField idFld, kindFld;
221 Checkbox contextChk;
222 Button bindBtn, cancelBtn;
223 Panel namePnl, buttonPnl;
224
225 bindDlg.setLayout(new BorderLayout());
227 namePnl = new Panel();
228 namePnl.setLayout(new GridLayout(1,5));
229 namePnl.add(new Label("id:"));
230 namePnl.add(idFld = new TextField());
231 namePnl.add(new Label("kind:"));
232 namePnl.add(kindFld = new TextField());
233 namePnl.add(contextChk = new Checkbox("new context", true));
234 bindDlg.add("North", namePnl);
235 bindDlg.add("Center", refTxt = new TextArea());
236 refTxt.setEnabled(false);
237 buttonPnl = new Panel();
238 buttonPnl.setLayout(new FlowLayout());
239 buttonPnl.add(bindBtn = new Button("bind"));
240 buttonPnl.add(cancelBtn = new Button("cancel"));
241 bindDlg.add("South", buttonPnl);
242
243 contextChk.addItemListener(new ContextChkMgr(refTxt));
245 bindDlg.addWindowListener(new BindDlgMgr(bindDlg));
246 bindBtn.addActionListener(new BindBtnMgr(bindDlg, idFld, kindFld, contextChk, refTxt));
247 cancelBtn.addActionListener(new CancelBtnMgr(bindDlg));
248
249 bindDlg.pack();
250 bindDlg.show();
251 }
252 else if (evt.getSource() == unbindBtn)
253 {
254 try
255 {
256 my_ns.unbind(path + bindingsLst.getSelectedItem());
257 }
258 catch (NameServiceException e)
259 {
260 new AlertWindow(this, "Name Service Exception", e.toString(), "OK");
261 e.printStackTrace();
262 }
263 updateBindings();
264 }
265 else if (evt.getSource() == destroyBtn)
266 {
267 try
268 {
269 my_ns.deepUnbind(path + bindingsLst.getSelectedItem());
270 }
271 catch (NameServiceException e)
272 {
273 new AlertWindow(this, "Name Service Exception", e.toString(), "OK");
274 e.printStackTrace();
275 }
276 updateBindings();
277 }
278 }
279
280
281
285
286 public void itemStateChanged(ItemEvent e)
287 {
288 switch (e.getStateChange())
289 {
290 case ItemEvent.SELECTED:
291 viewBtn.setEnabled(true);
292 unbindBtn.setEnabled(true);
293 if (bindings[bindingsLst.getSelectedIndex()].type == NSbinding.CONTEXT)
294 {
295 downBtn.setEnabled(true);
296 destroyBtn.setEnabled(true);
297 }
298 else
299 {
300 downBtn.setEnabled(false);
301 destroyBtn.setEnabled(false);
302 }
303 break;
304 case ItemEvent.DESELECTED:
305 downBtn.setEnabled(false);
306 viewBtn.setEnabled(false);
307 unbindBtn.setEnabled(false);
308 destroyBtn.setEnabled(false);
309 break;
310 }
311 }
312
313
314
318
319 class OnWindowClosing extends WindowAdapter
320 {
321 public void windowClosing(WindowEvent e)
322 {
323 NSbrowser.this.dispose();
324 if (standalone)
325 {
326 System.exit(0);
327 }
328 }
329 }
330
331
332
336
337 class ContextChkMgr implements ItemListener
338 {
339 TextArea txt;
340
341 public ContextChkMgr(TextArea the_txt)
342 {
343 txt = the_txt;
344 }
345
346 public void itemStateChanged(ItemEvent evt)
347 {
348 if (((Checkbox)evt.getSource()).getState())
349 {
350 txt.setEnabled(false);
351 }
352 else
353 {
354 txt.setEnabled(true);
355 }
356 }
357 }
358
359 class BindDlgMgr extends WindowAdapter
360 {
361 Dialog my_dlg;
362
363 public BindDlgMgr(Dialog the_dlg)
364 {
365 my_dlg = the_dlg;
366 }
367
368 public void windowClosing(WindowEvent event)
369 {
370 my_dlg.dispose();
371 }
372 }
373
374 class CancelBtnMgr implements ActionListener
375 {
376 Dialog my_dlg;
377
378 public CancelBtnMgr(Dialog the_dlg)
379 {
380 my_dlg = the_dlg;
381 }
382
383 public void actionPerformed(ActionEvent event)
384 {
385 my_dlg.dispose();
386 }
387 }
388
389 class BindBtnMgr implements ActionListener
390 {
391 Dialog bindDlg;
392 TextField idFld, kindFld;
393 Checkbox contextChk;
394 TextArea refTxt;
395
396 public BindBtnMgr(Dialog bind,
397 TextField id,
398 TextField kind,
399 Checkbox context,
400 TextArea ref)
401 {
402 bindDlg = bind;
403 idFld = id;
404 kindFld = kind;
405 contextChk = context;
406 refTxt = ref;
407 }
408
409 public void actionPerformed(ActionEvent event)
410 {
411 if (contextChk.getState())
412 {
413 try
414 {
415 NSbrowser.this.my_ns.makePath(
416 NSbrowser.this.path + idFld.getText() + "!" + kindFld.getText());
417 }
418 catch (NameServiceException e)
419 {
420 new AlertWindow(NSbrowser.this, "Cannot create the new context", e.toString(), "OK");
421 }
422 }
423 else
424 {
425 try
426 {
427 NSbrowser.this.my_ns.bind(
428 NSbrowser.this.path + idFld.getText() + "!" + kindFld.getText(),
429 NSbrowser.this.my_orb.string_to_object(refTxt.getText())
430 );
431 }
432 catch (SystemException e)
433 {
434 new AlertWindow(NSbrowser.this, "Invalid Object Reference", e.toString(), "OK");
435 }
436 catch (NameServiceException e)
437 {
438 new AlertWindow(NSbrowser.this, "Name Service Exception", e.toString(), "OK");
439 }
440 }
441 updateBindings();
442 bindDlg.dispose();
443 }
444 }
445 }
446 |
Popular Tags |
Java API By Example, From Geeks To Geeks.