@Override
public List<Breakpoint> getAllBreakpoints() throws DebuggerException {
List<BreakpointRequest> breakpointRequests;
try {
breakpointRequests = getEventManager().breakpointRequests();
} catch (DebuggerException e) {
Throwable cause = e.getCause();
if (cause instanceof VMCannotBeModifiedException) {
// If target VM in read-only state then list of break point always empty.
return Collections.emptyList();
}
throw e;
}
List<Breakpoint> breakPoints = new ArrayList<>(breakpointRequests.size());
for (BreakpointRequest breakpointRequest : breakpointRequests) {
com.sun.jdi.Location location = breakpointRequest.location();
// Breakpoint always enabled at the moment. Managing states of breakpoint is not supported for
// now.
breakPoints.add(
newDto(BreakpointDto.class)
.withEnabled(true)
.withLocation(
newDto(LocationDto.class)
.withTarget(location.declaringType().name())
.withLineNumber(location.lineNumber())));
}
Collections.sort(breakPoints, BREAKPOINT_COMPARATOR);
return breakPoints;
}
@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);
}
}
}