private boolean processBreakPointEvent(com.sun.jdi.event.BreakpointEvent event)
throws DebuggerException {
setCurrentThread(event.thread());
boolean hitBreakpoint;
ExpressionParser parser =
(ExpressionParser)
event
.request()
.getProperty("org.eclipse.che.ide.java.debug.condition.expression.parser");
if (parser != null) {
com.sun.jdi.Value result = evaluate(parser);
hitBreakpoint =
result instanceof com.sun.jdi.BooleanValue && ((com.sun.jdi.BooleanValue) result).value();
} else {
// If there is no expression.
hitBreakpoint = true;
}
if (hitBreakpoint) {
com.sun.jdi.Location jdiLocation = event.location();
Location location =
new LocationImpl(jdiLocation.declaringType().name(), jdiLocation.lineNumber());
debuggerCallback.onEvent(new SuspendEventImpl(location));
}
// Left target JVM in suspended state if result of evaluation of expression is boolean value and
// true
// or if condition expression is not set.
return !hitBreakpoint;
}
private boolean processStepEvent(com.sun.jdi.event.StepEvent event) throws DebuggerException {
setCurrentThread(event.thread());
com.sun.jdi.Location jdiLocation = event.location();
Location location =
new LocationImpl(jdiLocation.declaringType().name(), jdiLocation.lineNumber());
debuggerCallback.onEvent(new SuspendEventImpl(location));
return false;
}
@Override
public void addBreakpoint(Breakpoint breakpoint) throws DebuggerException {
final String className = breakpoint.getLocation().getTarget();
final int lineNumber = breakpoint.getLocation().getLineNumber();
List<ReferenceType> classes = vm.classesByName(className);
// it may mean that class doesn't loaded by a target JVM yet
if (classes.isEmpty()) {
deferBreakpoint(breakpoint);
throw new DebuggerException("Class not loaded");
}
ReferenceType clazz = classes.get(0);
List<com.sun.jdi.Location> locations;
try {
locations = clazz.locationsOfLine(lineNumber);
} catch (AbsentInformationException | ClassNotPreparedException e) {
throw new DebuggerException(e.getMessage(), e);
}
if (locations.isEmpty()) {
throw new DebuggerException("Line " + lineNumber + " not found in class " + className);
}
com.sun.jdi.Location location = locations.get(0);
if (location.method() == null) {
// Line is out of method.
throw new DebuggerException("Invalid line " + lineNumber + " in class " + className);
}
// Ignore new breakpoint if already have breakpoint at the same location.
EventRequestManager requestManager = getEventManager();
for (BreakpointRequest breakpointRequest : requestManager.breakpointRequests()) {
if (location.equals(breakpointRequest.location())) {
LOG.debug("Breakpoint at {} already set", location);
return;
}
}
try {
EventRequest breakPointRequest = requestManager.createBreakpointRequest(location);
breakPointRequest.setSuspendPolicy(EventRequest.SUSPEND_ALL);
String expression = breakpoint.getCondition();
if (!(expression == null || expression.isEmpty())) {
ExpressionParser parser = ExpressionParser.newInstance(expression);
breakPointRequest.putProperty(
"org.eclipse.che.ide.java.debug.condition.expression.parser", parser);
}
breakPointRequest.setEnabled(true);
} catch (NativeMethodException | IllegalThreadStateException | InvalidRequestStateException e) {
throw new DebuggerException(e.getMessage(), e);
}
debuggerCallback.onEvent(new BreakpointActivatedEventImpl(breakpoint));
LOG.debug("Add breakpoint: {}", location);
}
private boolean processDisconnectEvent() {
debuggerCallback.onEvent(new DisconnectEventImpl());
eventsCollector.stop();
return true;
}
