Richard S. Hall | 5c23fb9 | 2006-09-28 19:55:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
Richard S. Hall | 54d1e2e | 2006-04-05 14:19:38 +0000 | [diff] [blame] | 9 | * |
Richard S. Hall | 5c23fb9 | 2006-09-28 19:55:37 +0000 | [diff] [blame] | 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
Richard S. Hall | 54d1e2e | 2006-04-05 14:19:38 +0000 | [diff] [blame] | 11 | * |
Richard S. Hall | 5c23fb9 | 2006-09-28 19:55:37 +0000 | [diff] [blame] | 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
Richard S. Hall | 54d1e2e | 2006-04-05 14:19:38 +0000 | [diff] [blame] | 18 | */ |
| 19 | package org.apache.felix.shell.gui.plugin; |
| 20 | |
| 21 | import java.awt.*; |
| 22 | import java.awt.event.ActionEvent; |
| 23 | import java.awt.event.ActionListener; |
| 24 | import java.io.PrintStream; |
| 25 | import java.net.URL; |
| 26 | import java.util.*; |
| 27 | |
| 28 | import javax.swing.*; |
| 29 | import javax.swing.event.TreeSelectionEvent; |
| 30 | import javax.swing.event.TreeSelectionListener; |
| 31 | import javax.swing.tree.*; |
| 32 | |
| 33 | import org.apache.felix.shell.gui.Plugin; |
| 34 | import org.osgi.framework.*; |
| 35 | import org.osgi.service.obr.*; |
| 36 | |
| 37 | public class OBRPlugin extends JPanel implements Plugin |
| 38 | { |
| 39 | private static final String DEPLOY_BUTTON = "Deploy"; |
| 40 | private static final String START_BUTTON = "Deploy & start"; |
| 41 | |
| 42 | private BundleContext m_context = null; |
| 43 | private ServiceReference m_repoRef = null; |
| 44 | private RepositoryAdmin m_repoAdmin = null; |
| 45 | |
| 46 | private SimpleTreeNode m_rootNode = null; |
| 47 | private CreateRootRunnable m_createRootRunnable = new CreateRootRunnable(); |
| 48 | private SetRootRunnable m_setRootRunnable = new SetRootRunnable(); |
| 49 | |
| 50 | private JButton m_addRepoButton = null; |
| 51 | private JButton m_removeRepoButton = null; |
| 52 | private JButton m_refreshRepoButton = null; |
| 53 | private JTree m_bundleTree = null; |
| 54 | private JButton m_deployButton = null; |
| 55 | private JButton m_startButton = null; |
| 56 | private JButton m_infoButton = null; |
| 57 | private ScrollableOutputArea m_soa = null; |
| 58 | private JButton m_clearButton = null; |
| 59 | |
| 60 | private PrintStream m_out = null; |
| 61 | |
| 62 | // Plugin interface methods. |
| 63 | |
| 64 | public String getName() |
| 65 | { |
| 66 | return "OBR"; |
| 67 | } |
| 68 | |
| 69 | public Component getGUI() |
| 70 | { |
| 71 | return this; |
| 72 | } |
| 73 | |
| 74 | // Implementation. |
| 75 | |
| 76 | public OBRPlugin(BundleContext context) |
| 77 | { |
| 78 | m_context = context; |
| 79 | m_out = new PrintStream( |
| 80 | new OutputAreaStream( |
| 81 | m_soa = new ScrollableOutputArea(5, 30))); |
| 82 | |
| 83 | // Create the gui. |
| 84 | createUserInterface(); |
| 85 | |
| 86 | synchronized (this) |
| 87 | { |
| 88 | // Listen for registering/unregistering bundle repository services. |
| 89 | ServiceListener sl = new ServiceListener() { |
| 90 | public void serviceChanged(ServiceEvent event) |
| 91 | { |
| 92 | synchronized (OBRPlugin.this) |
| 93 | { |
| 94 | // Ignore additional services if we already have one. |
| 95 | if ((event.getType() == ServiceEvent.REGISTERED) |
| 96 | && (m_repoRef != null)) |
| 97 | { |
| 98 | return; |
| 99 | } |
| 100 | // Initialize the service if we don't have one. |
| 101 | else if ((event.getType() == ServiceEvent.REGISTERED) |
| 102 | && (m_repoRef == null)) |
| 103 | { |
| 104 | lookupService(); |
| 105 | } |
| 106 | // Unget the service if it is unregistering. |
| 107 | else if ((event.getType() == ServiceEvent.UNREGISTERING) |
| 108 | && event.getServiceReference().equals(m_repoRef)) |
| 109 | { |
| 110 | m_context.ungetService(m_repoRef); |
| 111 | m_repoRef = null; |
| 112 | m_repoAdmin = null; |
| 113 | // Try to get another service. |
| 114 | lookupService(); |
| 115 | } |
| 116 | } |
| 117 | } |
| 118 | }; |
| 119 | |
| 120 | try |
| 121 | { |
| 122 | m_context.addServiceListener(sl, |
| 123 | "(objectClass=" + RepositoryAdmin.class.getName() + ")"); |
| 124 | } |
| 125 | catch (InvalidSyntaxException ex) |
| 126 | { |
| 127 | System.err.println("OBRPlugin: " + ex); |
| 128 | } |
| 129 | |
| 130 | // Now try to manually initialize the shell service |
| 131 | // since one might already be available. |
| 132 | lookupService(); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | private synchronized void lookupService() |
| 137 | { |
| 138 | if (m_repoAdmin != null) |
| 139 | { |
| 140 | return; |
| 141 | } |
| 142 | m_repoRef = m_context.getServiceReference(RepositoryAdmin.class.getName()); |
| 143 | if (m_repoRef == null) |
| 144 | { |
| 145 | } |
| 146 | else |
| 147 | { |
| 148 | m_repoAdmin = (RepositoryAdmin) m_context.getService(m_repoRef); |
| 149 | } |
| 150 | |
| 151 | // Update the model. |
| 152 | initializeRootNode(); |
| 153 | } |
| 154 | |
| 155 | private void createEventListeners() |
| 156 | { |
| 157 | // Create action listeners. |
| 158 | m_addRepoButton.addActionListener(new ActionListener() { |
| 159 | public void actionPerformed(ActionEvent event) |
| 160 | { |
| 161 | synchronized (OBRPlugin.this) |
| 162 | { |
| 163 | if (m_repoAdmin == null) |
| 164 | { |
| 165 | return; |
| 166 | } |
| 167 | |
| 168 | String s = JOptionPane.showInputDialog( |
| 169 | OBRPlugin.this, "Enter repository URL:"); |
| 170 | |
| 171 | if (s != null) |
| 172 | { |
| 173 | try |
| 174 | { |
| 175 | m_repoAdmin.addRepository(new URL(s)); |
| 176 | } |
| 177 | catch (Exception ex) |
| 178 | { |
| 179 | ex.printStackTrace(); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | // Update the table. |
| 184 | initializeRootNode(); |
| 185 | } |
| 186 | } |
| 187 | }); |
| 188 | |
| 189 | m_removeRepoButton.addActionListener(new ActionListener() { |
| 190 | public void actionPerformed(ActionEvent event) |
| 191 | { |
| 192 | synchronized (OBRPlugin.this) |
| 193 | { |
| 194 | if (m_repoAdmin == null) |
| 195 | { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | TreePath[] paths = m_bundleTree.getSelectionPaths(); |
| 200 | for (int i = 0; i < paths.length; i++) |
| 201 | { |
| 202 | SimpleTreeNode node = (SimpleTreeNode) paths[i].getLastPathComponent(); |
| 203 | if (node.getObject() instanceof Repository) |
| 204 | { |
| 205 | m_repoAdmin.removeRepository( |
| 206 | ((Repository) |
| 207 | ((SimpleTreeNode) |
| 208 | paths[i].getLastPathComponent()).getObject()).getURL()); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | // Update the table. |
| 213 | initializeRootNode(); |
| 214 | } |
| 215 | } |
| 216 | }); |
| 217 | |
| 218 | m_refreshRepoButton.addActionListener(new ActionListener() { |
| 219 | public void actionPerformed(ActionEvent event) |
| 220 | { |
| 221 | synchronized (OBRPlugin.this) |
| 222 | { |
| 223 | if (m_repoAdmin == null) |
| 224 | { |
| 225 | return; |
| 226 | } |
| 227 | |
| 228 | TreePath[] paths = m_bundleTree.getSelectionPaths(); |
| 229 | for (int i = 0; i < paths.length; i++) |
| 230 | { |
| 231 | SimpleTreeNode node = (SimpleTreeNode) paths[i].getLastPathComponent(); |
| 232 | if (node.getObject() instanceof Repository) |
| 233 | { |
| 234 | try |
| 235 | { |
| 236 | // Adding the repository again causes it to be reparsed. |
| 237 | m_repoAdmin.addRepository( |
| 238 | ((Repository) node.getObject()).getURL()); |
| 239 | } catch (Exception ex) |
| 240 | { |
| 241 | ex.printStackTrace(); |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | // Update the table. |
| 247 | initializeRootNode(); |
| 248 | } |
| 249 | } |
| 250 | }); |
| 251 | |
| 252 | ActionListener al = new ActionListener() { |
| 253 | public void actionPerformed(ActionEvent event) |
| 254 | { |
| 255 | boolean start = event.getActionCommand().equals(START_BUTTON); |
| 256 | |
| 257 | synchronized (OBRPlugin.this) |
| 258 | { |
| 259 | if (m_repoAdmin == null) |
| 260 | { |
| 261 | return; |
| 262 | } |
| 263 | |
| 264 | Resolver resolver = m_repoAdmin.resolver(); |
| 265 | TreePath[] paths = m_bundleTree.getSelectionPaths(); |
| 266 | for (int i = 0; i < paths.length; i++) |
| 267 | { |
| 268 | SimpleTreeNode node = (SimpleTreeNode) paths[i].getLastPathComponent(); |
| 269 | if (node.getObject() instanceof Resource) |
| 270 | { |
| 271 | resolver.add((Resource) node.getObject()); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | if ((resolver.getAddedResources() != null) && |
| 276 | (resolver.getAddedResources().length > 0)) |
| 277 | { |
| 278 | if (resolver.resolve()) |
| 279 | { |
| 280 | m_out.println("Target resource(s):"); |
| 281 | printUnderline(m_out, 19); |
| 282 | Resource[] resources = resolver.getAddedResources(); |
| 283 | for (int resIdx = 0; (resources != null) && (resIdx < resources.length); resIdx++) |
| 284 | { |
| 285 | m_out.println(" " + resources[resIdx].getPresentationName() |
| 286 | + " (" + resources[resIdx].getVersion() + ")"); |
| 287 | } |
| 288 | resources = resolver.getRequiredResources(); |
| 289 | if ((resources != null) && (resources.length > 0)) |
| 290 | { |
| 291 | m_out.println("\nRequired resource(s):"); |
| 292 | printUnderline(m_out, 21); |
| 293 | for (int resIdx = 0; resIdx < resources.length; resIdx++) |
| 294 | { |
| 295 | m_out.println(" " + resources[resIdx].getPresentationName() |
| 296 | + " (" + resources[resIdx].getVersion() + ")"); |
| 297 | } |
| 298 | } |
| 299 | resources = resolver.getOptionalResources(); |
| 300 | if ((resources != null) && (resources.length > 0)) |
| 301 | { |
| 302 | m_out.println("\nOptional resource(s):"); |
| 303 | printUnderline(m_out, 21); |
| 304 | for (int resIdx = 0; resIdx < resources.length; resIdx++) |
| 305 | { |
| 306 | m_out.println(" " + resources[resIdx].getPresentationName() |
| 307 | + " (" + resources[resIdx].getVersion() + ")"); |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | try |
| 312 | { |
| 313 | m_out.print("\nDeploying..."); |
| 314 | resolver.deploy(start); |
| 315 | m_out.println("done."); |
| 316 | } |
| 317 | catch (IllegalStateException ex) |
| 318 | { |
| 319 | m_out.println(ex); |
| 320 | } |
| 321 | } |
| 322 | else |
| 323 | { |
| 324 | Requirement[] reqs = resolver.getUnsatisfiedRequirements(); |
| 325 | if ((reqs != null) && (reqs.length > 0)) |
| 326 | { |
| 327 | m_out.println("Unsatisfied requirement(s):"); |
| 328 | printUnderline(m_out, 27); |
| 329 | for (int reqIdx = 0; reqIdx < reqs.length; reqIdx++) |
| 330 | { |
| 331 | m_out.println(" " + reqs[reqIdx].getFilter()); |
| 332 | Resource[] resources = resolver.getResources(reqs[reqIdx]); |
| 333 | for (int resIdx = 0; resIdx < resources.length; resIdx++) |
| 334 | { |
| 335 | m_out.println(" " + resources[resIdx].getPresentationName()); |
| 336 | } |
| 337 | } |
| 338 | } |
| 339 | else |
| 340 | { |
| 341 | m_out.println("Could not resolve targets."); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | m_out.println(""); |
| 346 | } |
| 347 | } |
| 348 | } |
| 349 | }; |
| 350 | |
| 351 | m_deployButton.addActionListener(al); |
| 352 | m_startButton.addActionListener(al); |
| 353 | |
| 354 | m_infoButton.addActionListener(new ActionListener() { |
| 355 | public void actionPerformed(ActionEvent event) |
| 356 | { |
| 357 | synchronized (OBRPlugin.this) |
| 358 | { |
| 359 | if (m_repoAdmin == null) |
| 360 | { |
| 361 | return; |
| 362 | } |
| 363 | TreePath[] paths = m_bundleTree.getSelectionPaths(); |
| 364 | for (int i = 0; i < paths.length; i++) |
| 365 | { |
| 366 | if (i != 0) |
| 367 | { |
| 368 | m_out.println(""); |
| 369 | } |
| 370 | printInfo(m_out, |
| 371 | ((SimpleTreeNode) paths[i].getLastPathComponent()).getObject()); |
| 372 | } |
| 373 | m_out.println(""); |
| 374 | } |
| 375 | } |
| 376 | }); |
| 377 | |
| 378 | m_clearButton.addActionListener(new ActionListener() { |
| 379 | public void actionPerformed(ActionEvent event) |
| 380 | { |
| 381 | synchronized (OBRPlugin.this) |
| 382 | { |
| 383 | m_soa.setText(""); |
| 384 | } |
| 385 | } |
| 386 | }); |
| 387 | |
| 388 | m_bundleTree.addTreeSelectionListener(new TreeSelectionListener() { |
| 389 | public void valueChanged(TreeSelectionEvent e) |
| 390 | { |
| 391 | if (m_repoAdmin == null) |
| 392 | { |
| 393 | return; |
| 394 | } |
| 395 | TreePath[] paths = m_bundleTree.getSelectionPaths(); |
| 396 | boolean repoOnly = true; |
| 397 | if (paths != null) |
| 398 | { |
| 399 | for (int i = 0; repoOnly && (i < paths.length); i++) |
| 400 | { |
| 401 | SimpleTreeNode node = (SimpleTreeNode) paths[i].getLastPathComponent(); |
| 402 | if (!(node.getObject() instanceof Repository)) |
| 403 | { |
| 404 | repoOnly = false; |
| 405 | } |
| 406 | } |
| 407 | } |
| 408 | m_removeRepoButton.setEnabled((paths != null) && repoOnly); |
| 409 | m_refreshRepoButton.setEnabled((paths != null) && repoOnly); |
| 410 | m_infoButton.setEnabled((paths != null) && (paths.length > 0)); |
| 411 | } |
| 412 | }); |
| 413 | } |
| 414 | |
| 415 | private void printInfo(PrintStream out, Object obj) |
| 416 | { |
| 417 | if (obj != null) |
| 418 | { |
| 419 | if (obj instanceof Repository) |
| 420 | { |
| 421 | Repository repo = (Repository) obj; |
| 422 | out.println(repo.getName()); |
| 423 | out.println(" URL = " + repo.getURL()); |
| 424 | out.println(" Modified = " + new Date(repo.getLastModified())); |
| 425 | } |
| 426 | else if (obj instanceof Resource) |
| 427 | { |
| 428 | Resource res = (Resource) obj; |
| 429 | out.println(res.getPresentationName()); |
| 430 | |
| 431 | // Print properties. |
| 432 | Map map = res.getProperties(); |
| 433 | Iterator iter = map.entrySet().iterator(); |
| 434 | while (iter.hasNext()) |
| 435 | { |
| 436 | Map.Entry entry = (Map.Entry) iter.next(); |
| 437 | out.println(" " + entry.getKey() + " = " + entry.getValue()); |
| 438 | } |
| 439 | |
| 440 | // Print requirements. |
| 441 | Requirement[] reqs = res.getRequirements(); |
| 442 | for (int i = 0; (reqs != null) && (i < reqs.length); i++) |
| 443 | { |
| 444 | if (i == 0) |
| 445 | { |
| 446 | out.println(" requirements:"); |
| 447 | } |
| 448 | out.println(" " + reqs[i].getFilter()); |
| 449 | } |
| 450 | |
| 451 | // Print capabilities. |
| 452 | Capability[] caps = res.getCapabilities(); |
| 453 | for (int i = 0; (caps != null) && (i < caps.length); i++) |
| 454 | { |
| 455 | if (i == 0) |
| 456 | { |
| 457 | out.println(" capabilities:"); |
| 458 | } |
| 459 | out.println(" " + caps[i].getName() + " = " + caps[i].getProperties()); |
| 460 | } |
| 461 | } |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | private void createUserInterface() |
| 466 | { |
| 467 | JSplitPane split = new JSplitPane( |
| 468 | JSplitPane.VERTICAL_SPLIT, createTree(), createConsole()); |
| 469 | split.setResizeWeight(1.0); |
| 470 | split.setDividerSize(5); |
| 471 | setLayout(new BorderLayout()); |
| 472 | add(split, BorderLayout.CENTER); |
| 473 | createEventListeners(); |
| 474 | } |
| 475 | |
| 476 | private JPanel createTree() |
| 477 | { |
| 478 | JPanel panel = new JPanel(new BorderLayout()); |
| 479 | panel.add(createRepoPanel(), BorderLayout.NORTH); |
| 480 | panel.add(createResourcePanel(), BorderLayout.CENTER); |
| 481 | return panel; |
| 482 | } |
| 483 | |
| 484 | private JPanel createRepoPanel() |
| 485 | { |
| 486 | JPanel panel = new JPanel(); |
| 487 | panel.setBorder(BorderFactory.createTitledBorder("Repositories")); |
| 488 | panel.add(m_addRepoButton = new JButton("Add")); |
| 489 | m_addRepoButton.setMnemonic('A'); |
| 490 | panel.add(m_removeRepoButton = new JButton("Remove")); |
| 491 | m_removeRepoButton.setMnemonic('R'); |
| 492 | panel.add(m_refreshRepoButton = new JButton("Refresh")); |
| 493 | m_refreshRepoButton.setMnemonic('f'); |
| 494 | m_removeRepoButton.setEnabled(false); |
| 495 | m_refreshRepoButton.setEnabled(false); |
| 496 | return panel; |
| 497 | } |
| 498 | |
| 499 | private JPanel createResourcePanel() |
| 500 | { |
| 501 | JPanel panel = new JPanel(new BorderLayout()); |
| 502 | panel.setBorder(BorderFactory.createTitledBorder("Resources")); |
| 503 | JScrollPane scroll = null; |
| 504 | panel.add( |
| 505 | scroll = new JScrollPane( |
| 506 | m_bundleTree = new JTree(new SimpleTreeNode(null, null))), BorderLayout.CENTER); |
| 507 | panel.add(createButtonPanel(), BorderLayout.SOUTH); |
| 508 | |
| 509 | // Set table scroll pane to reasonable size. |
| 510 | scroll.setPreferredSize(new Dimension(100, 100)); |
| 511 | m_bundleTree.setMinimumSize(new Dimension(0, 0)); |
| 512 | |
| 513 | // We don't need to see the root. |
| 514 | m_bundleTree.setRootVisible(false); |
| 515 | m_bundleTree.setShowsRootHandles(true); |
| 516 | |
| 517 | return panel; |
| 518 | } |
| 519 | |
| 520 | private JPanel createButtonPanel() |
| 521 | { |
| 522 | JPanel panel = new JPanel(); |
| 523 | panel.add(m_deployButton = new JButton(DEPLOY_BUTTON)); |
| 524 | panel.add(m_startButton = new JButton(START_BUTTON)); |
| 525 | panel.add(m_infoButton = new JButton("Info")); |
| 526 | m_deployButton.setMnemonic('D'); |
| 527 | m_startButton.setMnemonic('S'); |
| 528 | m_infoButton.setMnemonic('I'); |
| 529 | m_infoButton.setEnabled(false); |
| 530 | return panel; |
| 531 | } |
| 532 | |
| 533 | private JPanel createConsole() |
| 534 | { |
| 535 | JPanel panel = new JPanel(new BorderLayout()); |
| 536 | panel.add(m_soa, BorderLayout.CENTER); |
| 537 | panel.add(m_clearButton = new JButton("Clear"), BorderLayout.EAST); |
| 538 | m_clearButton.setMnemonic('C'); |
| 539 | |
| 540 | return panel; |
| 541 | } |
| 542 | |
| 543 | private static void printUnderline(PrintStream out, int length) |
| 544 | { |
| 545 | for (int i = 0; i < length; i++) |
| 546 | { |
| 547 | out.print('-'); |
| 548 | } |
| 549 | out.println(""); |
| 550 | } |
| 551 | |
| 552 | private void initializeRootNode() |
| 553 | { |
| 554 | synchronized (m_createRootRunnable) |
| 555 | { |
| 556 | new Thread(m_createRootRunnable).start(); |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | private class CreateRootRunnable implements Runnable |
| 561 | { |
| 562 | public void run() |
| 563 | { |
| 564 | synchronized (OBRPlugin.this) |
| 565 | { |
| 566 | // HACK ALERT: This next if statement is a hack to force |
| 567 | // the OBR service to retrieve its repository files on |
| 568 | // this thread, rather than the Swing thread. This hack |
| 569 | // assumes that this GUI is working with Felix' OBR service, |
| 570 | // which defers retrieving repository URLs until needed. |
| 571 | if (m_repoAdmin != null) |
| 572 | { |
| 573 | m_repoAdmin.listRepositories(); |
| 574 | } |
| 575 | |
| 576 | // Create the new root node and then set it. |
| 577 | m_rootNode = new SimpleTreeNode(null, m_repoAdmin); |
| 578 | try |
| 579 | { |
| 580 | SwingUtilities.invokeAndWait(m_setRootRunnable); |
| 581 | } |
| 582 | catch (Exception ex) |
| 583 | { |
| 584 | // Ignore. |
| 585 | } |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | private class SetRootRunnable implements Runnable |
| 591 | { |
| 592 | public void run() |
| 593 | { |
| 594 | ((DefaultTreeModel) m_bundleTree.getModel()).setRoot(m_rootNode); |
| 595 | } |
| 596 | } |
| 597 | |
| 598 | private static class SimpleTreeNode implements TreeNode |
| 599 | { |
| 600 | private TreeNode m_parent = null; |
| 601 | private Object m_obj = null; |
| 602 | private TreeNode[] m_children = null; |
| 603 | private String m_toString = null; |
| 604 | |
| 605 | public SimpleTreeNode(TreeNode parent, Object obj) |
| 606 | { |
| 607 | m_parent = parent; |
| 608 | m_obj = obj; |
| 609 | } |
| 610 | |
| 611 | public Object getObject() |
| 612 | { |
| 613 | return m_obj; |
| 614 | } |
| 615 | |
| 616 | public TreeNode getChildAt(int index) |
| 617 | { |
| 618 | if (m_children == null) |
| 619 | { |
| 620 | initialize(); |
| 621 | } |
| 622 | |
| 623 | if ((m_children != null) && (index >= 0) && (index < m_children.length)) |
| 624 | { |
| 625 | return m_children[index]; |
| 626 | } |
| 627 | |
| 628 | return null; |
| 629 | } |
| 630 | |
| 631 | public int getChildCount() |
| 632 | { |
| 633 | if (m_children == null) |
| 634 | { |
| 635 | initialize(); |
| 636 | } |
| 637 | return (m_children == null) ? 0 : m_children.length; |
| 638 | } |
| 639 | |
| 640 | public TreeNode getParent() |
| 641 | { |
| 642 | return m_parent; |
| 643 | } |
| 644 | |
| 645 | public int getIndex(TreeNode node) |
| 646 | { |
| 647 | if (m_children == null) |
| 648 | { |
| 649 | initialize(); |
| 650 | } |
| 651 | for (int i = 0; (m_children != null) && (i < m_children.length); i++) |
| 652 | { |
| 653 | if (m_children[i] == node) |
| 654 | { |
| 655 | return i; |
| 656 | } |
| 657 | } |
| 658 | return -1; |
| 659 | } |
| 660 | |
| 661 | public boolean getAllowsChildren() |
| 662 | { |
| 663 | return true; |
| 664 | } |
| 665 | |
| 666 | public boolean isLeaf() |
| 667 | { |
| 668 | return (getChildCount() == 0); |
| 669 | } |
| 670 | |
| 671 | public Enumeration children() |
| 672 | { |
| 673 | return null; |
| 674 | } |
| 675 | |
| 676 | private void initialize() |
| 677 | { |
| 678 | // The current node might be the root repository admin. |
| 679 | if ((m_obj != null) && (m_obj instanceof RepositoryAdmin)) |
| 680 | { |
| 681 | Object[] objs = ((RepositoryAdmin) m_obj).listRepositories(); |
| 682 | if (objs != null) |
| 683 | { |
| 684 | m_children = new TreeNode[objs.length]; |
| 685 | for (int i = 0; i < objs.length; i++) |
| 686 | { |
| 687 | m_children[i] = new SimpleTreeNode(this, objs[i]); |
| 688 | } |
| 689 | } |
| 690 | } |
| 691 | else if (m_obj instanceof Repository) |
| 692 | { |
| 693 | Object[] objs = ((Repository) m_obj).getResources(); |
| 694 | if (objs != null) |
| 695 | { |
| 696 | m_children = new TreeNode[objs.length]; |
| 697 | for (int i = 0; i < objs.length; i++) |
| 698 | { |
| 699 | m_children[i] = new SimpleTreeNode(this, objs[i]); |
| 700 | } |
| 701 | } |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | public String toString() |
| 706 | { |
| 707 | if (m_toString == null) |
| 708 | { |
| 709 | if (m_obj instanceof RepositoryAdmin) |
| 710 | { |
| 711 | m_toString = "ROOT"; |
| 712 | } |
| 713 | else if (m_obj instanceof Repository) |
| 714 | { |
| 715 | m_toString = ((Repository) m_obj).getName(); |
| 716 | } |
| 717 | else if (m_obj instanceof Resource) |
| 718 | { |
| 719 | m_toString = ((Resource) m_obj).getPresentationName() |
| 720 | + " (" + ((Resource) m_obj).getVersion() + ")"; |
| 721 | } |
| 722 | else |
| 723 | { |
| 724 | m_toString = (m_obj != null) ? m_obj.toString() : "null"; |
| 725 | } |
| 726 | } |
| 727 | return m_toString; |
| 728 | } |
| 729 | } |
| 730 | } |