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annotate agent/src/share/classes/sun/jvm/hotspot/ui/JavaThreadsPanel.java @ 12226:7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel
| author | ehelin |
|---|---|
| date | Mon, 12 Aug 2013 17:37:02 +0200 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.ui; | |
| 26 | |
| 27 import java.awt.BorderLayout; | |
| 28 import java.awt.Dimension; | |
| 29 | |
| 30 import java.awt.event.*; | |
| 31 | |
| 32 import java.io.*; | |
| 33 import java.util.*; | |
| 34 | |
| 35 import javax.swing.*; | |
| 36 import javax.swing.event.ListSelectionEvent; | |
| 37 import javax.swing.event.ListSelectionListener; | |
| 38 import javax.swing.table.*; | |
| 39 | |
| 40 import sun.jvm.hotspot.debugger.*; | |
| 41 import sun.jvm.hotspot.runtime.*; | |
| 42 | |
| 43 import sun.jvm.hotspot.ui.action.*; | |
| 44 | |
| 45 import com.sun.java.swing.ui.*; | |
| 46 import com.sun.java.swing.action.*; | |
| 47 | |
| 48 /** | |
| 49 * This panel contains a JTable which displays the list of Java | |
| 50 * threads as their native thread identifiers combined with their | |
| 51 * Java names. It allows selection and examination of any of the | |
| 52 * threads. | |
| 53 */ | |
| 54 public class JavaThreadsPanel extends SAPanel implements ActionListener { | |
| 55 private JavaThreadsTableModel dataModel; | |
| 56 private StatusBar statusBar; | |
| 57 private JTable threadTable; | |
| 58 private java.util.List cachedThreads = new ArrayList(); | |
| 59 | |
| 60 | |
| 61 /** Constructor assumes the threads panel is created while the VM is | |
| 62 suspended. Subsequent resume and suspend operations of the VM | |
| 63 will cause the threads panel to clear and fill itself back in, | |
| 64 respectively. */ | |
| 65 public JavaThreadsPanel() { | |
| 66 VM.getVM().registerVMResumedObserver(new Observer() { | |
| 67 public void update(Observable o, Object data) { | |
| 68 decache(); | |
| 69 } | |
| 70 }); | |
| 71 | |
| 72 VM.getVM().registerVMSuspendedObserver(new Observer() { | |
| 73 public void update(Observable o, Object data) { | |
| 74 cache(); | |
| 75 } | |
| 76 }); | |
| 77 | |
| 78 cache(); | |
| 79 | |
| 80 setLayout(new BorderLayout()); | |
| 81 | |
| 82 dataModel = new JavaThreadsTableModel(cachedThreads); | |
| 83 statusBar = new StatusBar(); | |
| 84 | |
| 85 threadTable = new JTable(dataModel, new JavaThreadsColumnModel()); | |
| 86 threadTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); | |
| 87 threadTable.addMouseListener(new MouseAdapter() { | |
| 88 public void mouseClicked(MouseEvent evt) { | |
| 89 if (evt.getClickCount() == 2) { | |
| 90 // double clicking will display the oop inspector. | |
| 91 fireShowThreadOopInspector(); | |
| 92 } | |
| 93 } | |
| 94 }); | |
| 95 | |
| 96 add(new JavaThreadsToolBar(statusBar), BorderLayout.NORTH); | |
| 97 add(new ThreadPanel(threadTable), BorderLayout.CENTER); | |
| 98 add(statusBar, BorderLayout.SOUTH); | |
| 99 | |
| 100 registerActions(); | |
| 101 } | |
| 102 | |
| 103 /** | |
| 104 * A splitpane panel which contains the thread table and the Thread Info. | |
| 105 * the thread info is toggleable | |
| 106 */ | |
| 107 private class ThreadPanel extends JPanel { | |
| 108 | |
| 109 private JSplitPane splitPane; | |
| 110 private JTable threadTable; | |
| 111 private ThreadInfoPanel threadInfo; | |
| 112 private int dividerSize; | |
| 113 private int dividerLocation = -1; | |
| 114 private boolean actionsEnabled = false; | |
| 115 | |
| 116 public ThreadPanel(JTable table) { | |
| 117 setLayout(new BorderLayout()); | |
| 118 this.threadInfo = new ThreadInfoPanel(); | |
| 119 this.threadTable = table; | |
| 120 | |
| 121 splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT); | |
| 122 splitPane.setOneTouchExpandable(true); | |
| 123 splitPane.setTopComponent(new JScrollPane(table)); | |
| 124 | |
| 125 // Set the size of the divider to 0 but save it so it can be restored | |
| 126 dividerSize = splitPane.getDividerSize(); | |
| 127 splitPane.setDividerSize(0); | |
| 128 | |
| 129 add(splitPane, BorderLayout.CENTER); | |
| 130 | |
| 131 // Register an ItemListener on the LogViewerAction which toggles | |
| 132 // the apearance of the ThreadInfoPanel | |
| 133 ActionManager manager = HSDBActionManager.getInstance(); | |
| 134 StateChangeAction action = manager.getStateChangeAction(ThreadInfoAction.VALUE_COMMAND); | |
| 135 if (action != null) { | |
| 136 action.setItemListener(new ItemListener() { | |
| 137 public void itemStateChanged(ItemEvent evt) { | |
| 138 if (evt.getStateChange() == ItemEvent.SELECTED) { | |
| 139 showOutputPane(); | |
| 140 } else { | |
| 141 hideOutputPane(); | |
| 142 } | |
| 143 } | |
| 144 }); | |
| 145 } | |
| 146 | |
| 147 // A listener is added to listen to changes in row selection | |
| 148 // and changes the contents of the ThreadInfoPanel. | |
| 149 ListSelectionModel selModel = table.getSelectionModel(); | |
| 150 selModel.addListSelectionListener(new ListSelectionListener() { | |
| 151 public void valueChanged(ListSelectionEvent evt) { | |
| 152 if (evt.getValueIsAdjusting() == false) { | |
| 153 setActionsEnabled(true); | |
| 154 if (isInfoVisible()) { | |
| 155 showCurrentThreadInfo(); | |
| 156 } | |
| 157 } | |
| 158 } | |
| 159 }); | |
| 160 } | |
| 161 | |
| 162 /** | |
| 163 * Returns a flag to indicate if the thread info is visible | |
| 164 */ | |
| 165 private boolean isInfoVisible() { | |
| 166 return (splitPane.getBottomComponent() != null); | |
| 167 } | |
| 168 | |
| 169 private void showOutputPane() { | |
| 170 if (splitPane.getBottomComponent() == null) { | |
| 171 splitPane.setBottomComponent(threadInfo); | |
| 172 | |
| 173 if (dividerLocation == -1) { | |
| 174 // Calculate the divider location from the pref size. | |
| 175 Dimension pSize = this.getSize(); | |
| 176 dividerLocation = pSize.height / 2; | |
| 177 } | |
| 178 | |
| 179 splitPane.setDividerSize(dividerSize); | |
| 180 splitPane.setDividerLocation(dividerLocation); | |
| 181 showCurrentThreadInfo(); | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 private void hideOutputPane() { | |
| 186 dividerLocation = splitPane.getDividerLocation(); | |
| 187 splitPane.remove(threadInfo); | |
| 188 splitPane.setDividerSize(0); | |
| 189 } | |
| 190 | |
| 191 private void showCurrentThreadInfo() { | |
| 192 int row = threadTable.getSelectedRow(); | |
| 193 if (row >= 0) { | |
| 194 threadInfo.setJavaThread(dataModel.getJavaThread(row)); | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 private void setActionsEnabled(boolean enabled) { | |
| 199 if (actionsEnabled != enabled) { | |
| 200 ActionManager manager = ActionManager.getInstance(); | |
| 201 manager.setActionEnabled(InspectAction.VALUE_COMMAND, enabled); | |
| 202 manager.setActionEnabled(MemoryAction.VALUE_COMMAND, enabled); | |
| 203 manager.setActionEnabled(JavaStackTraceAction.VALUE_COMMAND, enabled); | |
| 204 actionsEnabled = enabled; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 } // end ThreadPanel | |
| 209 | |
| 210 private class JavaThreadsToolBar extends CommonToolBar { | |
| 211 public JavaThreadsToolBar(StatusBar status) { | |
| 212 super(HSDBActionManager.getInstance(), status); | |
| 213 } | |
| 214 | |
| 215 protected void addComponents() { | |
| 216 addButton(manager.getAction(InspectAction.VALUE_COMMAND)); | |
| 217 addButton(manager.getAction(MemoryAction.VALUE_COMMAND)); | |
| 218 addButton(manager.getAction(JavaStackTraceAction.VALUE_COMMAND)); | |
| 219 | |
| 220 addToggleButton(manager.getStateChangeAction(ThreadInfoAction.VALUE_COMMAND)); | |
| 221 addButton(manager.getAction(FindCrashesAction.VALUE_COMMAND)); | |
| 222 } | |
| 223 } | |
| 224 | |
| 225 private class JavaThreadsColumnModel extends DefaultTableColumnModel { | |
| 226 private String[] columnNames = { "OS Thread ID", "Java Thread Name" }; | |
| 227 | |
| 228 public JavaThreadsColumnModel() { | |
| 229 // Should actually get the line metrics for | |
| 230 int PREF_WIDTH = 80; | |
| 231 int MAX_WIDTH = 100; | |
| 232 int HUGE_WIDTH = 140; | |
| 233 | |
| 234 TableColumn column; | |
| 235 | |
| 236 // Thread ID | |
| 237 column = new TableColumn(0, MAX_WIDTH); | |
| 238 column.setHeaderValue(columnNames[0]); | |
| 239 column.setMaxWidth(MAX_WIDTH); | |
| 240 column.setResizable(false); | |
| 241 addColumn(column); | |
| 242 | |
| 243 // Thread name | |
| 244 column = new TableColumn(1, HUGE_WIDTH); | |
| 245 column.setHeaderValue(columnNames[1]); | |
| 246 column.setResizable(false); | |
| 247 addColumn(column); | |
| 248 } | |
| 249 } // end class JavaThreadsColumnModel | |
| 250 | |
| 251 /** | |
| 252 * Encapsulates the set of threads in a table model | |
| 253 */ | |
| 254 private class JavaThreadsTableModel extends AbstractTableModel { | |
| 255 private String[] columnNames = { "OS Thread ID", "Java Thread Name" }; | |
| 256 | |
| 257 private java.util.List elements; | |
| 258 | |
| 259 public JavaThreadsTableModel(java.util.List threads) { | |
| 260 this.elements = threads; | |
| 261 } | |
| 262 | |
| 263 public int getColumnCount() { | |
| 264 return columnNames.length; | |
| 265 } | |
| 266 | |
| 267 public int getRowCount() { | |
| 268 return elements.size(); | |
| 269 } | |
| 270 | |
| 271 public String getColumnName(int col) { | |
| 272 return columnNames[col]; | |
| 273 } | |
| 274 | |
| 275 public Object getValueAt(int row, int col) { | |
| 276 CachedThread thread = getRow(row); | |
| 277 switch (col) { | |
| 278 case 0: | |
| 279 return thread.getThreadID(); | |
| 280 case 1: | |
| 281 return thread.getThreadName(); | |
| 282 default: | |
| 283 throw new RuntimeException("Index (" + col + ", " + row + ") out of bounds"); | |
| 284 } | |
| 285 } | |
| 286 | |
| 287 /** | |
| 288 * Returns the selected Java Thread indexed by the row or null. | |
| 289 */ | |
| 290 public JavaThread getJavaThread(int index) { | |
| 291 return getRow(index).getThread(); | |
| 292 } | |
| 293 | |
| 294 private CachedThread getRow(int row) { | |
| 295 return (CachedThread)elements.get(row); | |
| 296 } | |
| 297 | |
| 298 private String threadIDAt(int index) { | |
| 299 return ((CachedThread) cachedThreads.get(index)).getThreadID(); | |
| 300 } | |
| 301 | |
| 302 private String threadNameAt(int index) { | |
| 303 try { | |
| 304 return ((CachedThread) cachedThreads.get(index)).getThreadName(); | |
| 305 } catch (AddressException e) { | |
| 306 return "<Error: AddressException>"; | |
| 307 } catch (NullPointerException e) { | |
| 308 return "<Error: NullPointerException>"; | |
| 309 } | |
| 310 } | |
| 311 } // end class JavaThreadsTableModel | |
| 312 | |
| 313 public void actionPerformed(ActionEvent evt) { | |
| 314 String command = evt.getActionCommand(); | |
| 315 | |
| 316 if (command.equals(InspectAction.VALUE_COMMAND)) { | |
| 317 fireShowThreadOopInspector(); | |
| 318 } else if (command.equals(MemoryAction.VALUE_COMMAND)) { | |
| 319 fireShowThreadStackMemory(); | |
| 320 } else if (command.equals(ThreadInfoAction.VALUE_COMMAND)) { | |
| 321 fireShowThreadInfo(); | |
| 322 } else if (command.equals(FindCrashesAction.VALUE_COMMAND)) { | |
| 323 if (fireShowThreadCrashes()) { | |
| 324 statusBar.setMessage("Some thread crashes were encountered"); | |
| 325 } else { | |
| 326 statusBar.setMessage("No thread crashes encountered"); | |
| 327 } | |
| 328 } else if (command.equals(JavaStackTraceAction.VALUE_COMMAND)) { | |
| 329 fireShowJavaStackTrace(); | |
| 330 } | |
| 331 } | |
| 332 | |
| 333 // Cached data for a thread | |
| 334 private class CachedThread { | |
| 335 private JavaThread thread; | |
| 336 private String threadID; | |
| 337 private String threadName; | |
| 338 private boolean computed; | |
| 339 | |
| 340 public CachedThread(JavaThread thread) { | |
| 341 this.thread = thread; | |
| 342 } | |
| 343 | |
| 344 public JavaThread getThread() { | |
| 345 return thread; | |
| 346 } | |
| 347 | |
| 348 public String getThreadID() { | |
| 349 if (!computed) { | |
| 350 compute(); | |
| 351 } | |
| 352 | |
| 353 return threadID; | |
| 354 } | |
| 355 | |
| 356 public String getThreadName() { | |
| 357 if (!computed) { | |
| 358 compute(); | |
| 359 } | |
| 360 | |
| 361 return threadName; | |
| 362 } | |
| 363 | |
| 364 private void compute() { | |
| 365 ByteArrayOutputStream bos = new ByteArrayOutputStream(); | |
| 366 thread.printThreadIDOn(new PrintStream(bos)); | |
| 367 threadID = bos.toString(); | |
| 368 threadName = thread.getThreadName(); | |
| 369 | |
| 370 computed = true; | |
| 371 } | |
| 372 } | |
| 373 | |
| 374 //-------------------------------------------------------------------------------- | |
| 375 // Internals only below this point | |
| 376 // | |
| 377 | |
| 378 protected void registerActions() { | |
| 379 registerAction(InspectAction.VALUE_COMMAND); | |
| 380 registerAction(MemoryAction.VALUE_COMMAND); | |
| 381 registerAction(FindCrashesAction.VALUE_COMMAND); | |
| 382 registerAction(JavaStackTraceAction.VALUE_COMMAND); | |
| 383 | |
| 384 // disable Inspector, Memory and Java Stack trace action until a thread is selected | |
| 385 ActionManager manager = ActionManager.getInstance(); | |
| 386 manager.setActionEnabled(InspectAction.VALUE_COMMAND, false); | |
| 387 manager.setActionEnabled(MemoryAction.VALUE_COMMAND, false); | |
| 388 manager.setActionEnabled(JavaStackTraceAction.VALUE_COMMAND, false); | |
| 389 } | |
| 390 | |
| 391 private void registerAction(String actionName) { | |
| 392 ActionManager manager = ActionManager.getInstance(); | |
| 393 DelegateAction action = manager.getDelegateAction(actionName); | |
| 394 action.addActionListener(this); | |
| 395 } | |
| 396 | |
| 397 | |
| 398 | |
| 399 private void fireShowThreadOopInspector() { | |
| 400 int i = threadTable.getSelectedRow(); | |
| 401 if (i < 0) { | |
| 402 return; | |
| 403 } | |
| 404 | |
| 405 JavaThread t = dataModel.getJavaThread(i); | |
| 406 showThreadOopInspector(t); | |
| 407 } | |
| 408 | |
| 409 private void fireShowThreadStackMemory() { | |
| 410 int i = threadTable.getSelectedRow(); | |
| 411 if (i < 0) { | |
| 412 return; | |
| 413 } | |
| 414 showThreadStackMemory(dataModel.getJavaThread(i)); | |
| 415 } | |
| 416 | |
| 417 private void fireShowJavaStackTrace() { | |
| 418 int i = threadTable.getSelectedRow(); | |
| 419 if (i < 0) { | |
| 420 return; | |
| 421 } | |
| 422 showJavaStackTrace(dataModel.getJavaThread(i)); | |
| 423 } | |
| 424 | |
| 425 private void fireShowThreadInfo() { | |
| 426 int i = threadTable.getSelectedRow(); | |
| 427 if (i < 0) { | |
| 428 return; | |
| 429 } | |
| 430 showThreadInfo(dataModel.getJavaThread(i)); | |
| 431 } | |
| 432 | |
| 433 /** | |
| 434 * Shows stack memory for threads which have crashed (defined as | |
| 435 * having taken a signal above a Java frame) | |
| 436 * | |
| 437 * @return a flag which indicates if crashes were encountered. | |
| 438 */ | |
| 439 private boolean fireShowThreadCrashes() { | |
| 440 boolean crash = false; | |
| 441 for (Iterator iter = cachedThreads.iterator(); iter.hasNext(); ) { | |
| 442 JavaThread t = (JavaThread) ((CachedThread) iter.next()).getThread(); | |
| 443 sun.jvm.hotspot.runtime.Frame tmpFrame = t.getCurrentFrameGuess(); | |
| 444 RegisterMap tmpMap = t.newRegisterMap(false); | |
| 445 while ((tmpFrame != null) && (!tmpFrame.isFirstFrame())) { | |
| 446 if (tmpFrame.isSignalHandlerFrameDbg()) { | |
| 447 showThreadStackMemory(t); | |
| 448 crash = true; | |
| 449 break; | |
| 450 } | |
| 451 tmpFrame = tmpFrame.sender(tmpMap); | |
| 452 } | |
| 453 } | |
| 454 return crash; | |
| 455 } | |
| 456 | |
| 457 private void cache() { | |
| 458 Threads threads = VM.getVM().getThreads(); | |
| 459 for (JavaThread t = threads.first(); t != null; t = t.next()) { | |
| 460 if (t.isJavaThread()) { | |
| 461 cachedThreads.add(new CachedThread(t)); | |
| 462 } | |
| 463 } | |
| 464 } | |
| 465 | |
| 466 private void decache() { | |
| 467 cachedThreads.clear(); | |
| 468 } | |
| 469 | |
| 470 } |