@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);
}
@Override
public void deleteBreakpoint(Location location) throws DebuggerException {
final String className = location.getTarget();
final int lineNumber = location.getLineNumber();
EventRequestManager requestManager = getEventManager();
List<BreakpointRequest> snapshot = new ArrayList<>(requestManager.breakpointRequests());
for (BreakpointRequest breakpointRequest : snapshot) {
com.sun.jdi.Location jdiLocation = breakpointRequest.location();
if (jdiLocation.declaringType().name().equals(className)
&& jdiLocation.lineNumber() == lineNumber) {
requestManager.deleteEventRequest(breakpointRequest);
LOG.debug("Delete breakpoint: {}", location);
}
}
}
public void applyThreadFilter(
@NotNull final DebugProcessImpl debugProcess, @Nullable ThreadReference newFilterThread) {
final RequestManagerImpl requestManager = debugProcess.getRequestsManager();
final ThreadReference oldFilterThread = requestManager.getFilterThread();
if (Comparing.equal(newFilterThread, oldFilterThread)) {
// the filter already added
return;
}
requestManager.setFilterThread(newFilterThread);
if (newFilterThread == null || oldFilterThread != null) {
final List<Breakpoint> breakpoints = getBreakpoints();
for (Breakpoint breakpoint : breakpoints) {
if (LineBreakpoint.CATEGORY.equals(breakpoint.getCategory())
|| MethodBreakpoint.CATEGORY.equals(breakpoint.getCategory())) {
requestManager.deleteRequest(breakpoint);
breakpoint.createRequest(debugProcess);
}
}
} else {
// important! need to add filter to _existing_ requests, otherwise Requestor->Request mapping
// will be lost
// and debugger trees will not be restored to original state
abstract class FilterSetter<T extends EventRequest> {
void applyFilter(@NotNull final List<T> requests, final ThreadReference thread) {
for (T request : requests) {
try {
final boolean wasEnabled = request.isEnabled();
if (wasEnabled) {
request.disable();
}
addFilter(request, thread);
if (wasEnabled) {
request.enable();
}
} catch (InternalException e) {
LOG.info(e);
}
}
}
protected abstract void addFilter(final T request, final ThreadReference thread);
}
final EventRequestManager eventRequestManager = requestManager.getVMRequestManager();
new FilterSetter<BreakpointRequest>() {
@Override
protected void addFilter(
@NotNull final BreakpointRequest request, final ThreadReference thread) {
request.addThreadFilter(thread);
}
}.applyFilter(eventRequestManager.breakpointRequests(), newFilterThread);
new FilterSetter<MethodEntryRequest>() {
@Override
protected void addFilter(
@NotNull final MethodEntryRequest request, final ThreadReference thread) {
request.addThreadFilter(thread);
}
}.applyFilter(eventRequestManager.methodEntryRequests(), newFilterThread);
new FilterSetter<MethodExitRequest>() {
@Override
protected void addFilter(
@NotNull final MethodExitRequest request, final ThreadReference thread) {
request.addThreadFilter(thread);
}
}.applyFilter(eventRequestManager.methodExitRequests(), newFilterThread);
}
}
