83 @Override
84 public void threadStartEvent(ThreadStartEvent e) {
85 }
86
87 @Override
88 public void threadDeathEvent(ThreadDeathEvent e) {
89 }
90
91 @Override
92 public void classPrepareEvent(ClassPrepareEvent e) {
93 }
94
95 @Override
96 public void classUnloadEvent(ClassUnloadEvent e) {
97 }
98
99 @Override
100 public void breakpointEvent(BreakpointEvent be) {
101 Thread.yield(); // fetch output
102 MessageOutput.lnprint("Breakpoint hit:");
103 }
104
105 @Override
106 public void fieldWatchEvent(WatchpointEvent fwe) {
107 Field field = fwe.field();
108 ObjectReference obj = fwe.object();
109 Thread.yield(); // fetch output
110
111 if (fwe instanceof ModificationWatchpointEvent) {
112 MessageOutput.lnprint("Field access encountered before after",
113 new Object [] {field,
114 fwe.valueCurrent(),
115 ((ModificationWatchpointEvent)fwe).valueToBe()});
116 } else {
117 MessageOutput.lnprint("Field access encountered", field.toString());
118 }
119 }
120
121 @Override
122 public void stepEvent(StepEvent se) {
210 Thread.yield(); // fetch output
211 printCurrentLocation();
212 for (String cmd : monitorCommands) {
213 StringTokenizer t = new StringTokenizer(cmd);
214 t.nextToken(); // get rid of monitor number
215 executeCommand(t);
216 }
217 MessageOutput.printPrompt();
218 }
219
220 @Override
221 public void receivedEvent(Event event) {
222 }
223
224 private void printBaseLocation(String threadName, Location loc) {
225 MessageOutput.println("location",
226 new Object [] {threadName,
227 Commands.locationString(loc)});
228 }
229
230 private void printCurrentLocation() {
231 ThreadInfo threadInfo = ThreadInfo.getCurrentThreadInfo();
232 StackFrame frame;
233 try {
234 frame = threadInfo.getCurrentFrame();
235 } catch (IncompatibleThreadStateException exc) {
236 MessageOutput.println("<location unavailable>");
237 return;
238 }
239 if (frame == null) {
240 MessageOutput.println("No frames on the current call stack");
241 } else {
242 Location loc = frame.location();
243 printBaseLocation(threadInfo.getThread().name(), loc);
244 // Output the current source line, if possible
245 if (loc.lineNumber() != -1) {
246 String line;
247 try {
248 line = Env.sourceLine(loc, loc.lineNumber());
249 } catch (java.io.IOException e) {
250 line = null;
251 }
252 if (line != null) {
253 MessageOutput.println("source line number and line",
254 new Object [] {loc.lineNumber(),
255 line});
256 }
257 }
258 }
259 MessageOutput.println();
260 }
261
262 private void printLocationOfEvent(LocatableEvent theEvent) {
263 printBaseLocation(theEvent.thread().name(), theEvent.location());
264 }
265
266 void help() {
267 MessageOutput.println("zz help text");
268 }
269
270 private static final String[][] commandList = {
271 /*
272 * NOTE: this list must be kept sorted in ascending ASCII
273 * order by element [0]. Ref: isCommand() below.
274 *
275 *Command OK when OK when
276 * name disconnected? readonly?
277 *------------------------------------
278 */
279 {"!!", "n", "y"},
280 {"?", "y", "y"},
281 {"bytecodes", "n", "y"},
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83 @Override
84 public void threadStartEvent(ThreadStartEvent e) {
85 }
86
87 @Override
88 public void threadDeathEvent(ThreadDeathEvent e) {
89 }
90
91 @Override
92 public void classPrepareEvent(ClassPrepareEvent e) {
93 }
94
95 @Override
96 public void classUnloadEvent(ClassUnloadEvent e) {
97 }
98
99 @Override
100 public void breakpointEvent(BreakpointEvent be) {
101 Thread.yield(); // fetch output
102 MessageOutput.lnprint("Breakpoint hit:");
103 // Print current location and prompt if suspend policy is SUSPEND_EVENT_THREAD.
104 // In case of SUSPEND_ALL policy this is handled by vmInterrupted() method.
105 if (be.request().suspendPolicy() == EventRequest.SUSPEND_EVENT_THREAD) {
106 printCurrentLocation(ThreadInfo.getThreadInfo(be.thread()));
107 MessageOutput.printPrompt();
108 }
109 }
110
111 @Override
112 public void fieldWatchEvent(WatchpointEvent fwe) {
113 Field field = fwe.field();
114 ObjectReference obj = fwe.object();
115 Thread.yield(); // fetch output
116
117 if (fwe instanceof ModificationWatchpointEvent) {
118 MessageOutput.lnprint("Field access encountered before after",
119 new Object [] {field,
120 fwe.valueCurrent(),
121 ((ModificationWatchpointEvent)fwe).valueToBe()});
122 } else {
123 MessageOutput.lnprint("Field access encountered", field.toString());
124 }
125 }
126
127 @Override
128 public void stepEvent(StepEvent se) {
216 Thread.yield(); // fetch output
217 printCurrentLocation();
218 for (String cmd : monitorCommands) {
219 StringTokenizer t = new StringTokenizer(cmd);
220 t.nextToken(); // get rid of monitor number
221 executeCommand(t);
222 }
223 MessageOutput.printPrompt();
224 }
225
226 @Override
227 public void receivedEvent(Event event) {
228 }
229
230 private void printBaseLocation(String threadName, Location loc) {
231 MessageOutput.println("location",
232 new Object [] {threadName,
233 Commands.locationString(loc)});
234 }
235
236 private void printCurrentLocation(ThreadInfo threadInfo) {
237 StackFrame frame;
238 try {
239 frame = threadInfo.getCurrentFrame();
240 } catch (IncompatibleThreadStateException exc) {
241 MessageOutput.println("<location unavailable>");
242 return;
243 }
244 if (frame == null) {
245 MessageOutput.println("No frames on the current call stack");
246 } else {
247 Location loc = frame.location();
248 printBaseLocation(threadInfo.getThread().name(), loc);
249 // Output the current source line, if possible
250 if (loc.lineNumber() != -1) {
251 String line;
252 try {
253 line = Env.sourceLine(loc, loc.lineNumber());
254 } catch (java.io.IOException e) {
255 line = null;
256 }
257 if (line != null) {
258 MessageOutput.println("source line number and line",
259 new Object [] {loc.lineNumber(),
260 line});
261 }
262 }
263 }
264 MessageOutput.println();
265 }
266
267 private void printCurrentLocation() {
268 printCurrentLocation(ThreadInfo.getCurrentThreadInfo());
269 }
270
271 private void printLocationOfEvent(LocatableEvent theEvent) {
272 printBaseLocation(theEvent.thread().name(), theEvent.location());
273 }
274
275 void help() {
276 MessageOutput.println("zz help text");
277 }
278
279 private static final String[][] commandList = {
280 /*
281 * NOTE: this list must be kept sorted in ascending ASCII
282 * order by element [0]. Ref: isCommand() below.
283 *
284 *Command OK when OK when
285 * name disconnected? readonly?
286 *------------------------------------
287 */
288 {"!!", "n", "y"},
289 {"?", "y", "y"},
290 {"bytecodes", "n", "y"},
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