Java 类com.sun.jdi.event.AccessWatchpointEvent 实例源码

public static F3Event wrap(F3VirtualMachine f3vm, Event evt) {
    if (evt == null) {
        return null;
    }
    if (evt instanceof AccessWatchpointEvent) {
        return new F3AccessWatchpointEvent(f3vm, (AccessWatchpointEvent)evt);
    } else if (evt instanceof BreakpointEvent) {
        return new F3BreakpointEvent(f3vm, (BreakpointEvent)evt);
    } else if (evt instanceof ClassPrepareEvent) {
        return new F3ClassPrepareEvent(f3vm, (ClassPrepareEvent)evt);
    } else if (evt instanceof ClassUnloadEvent) {
        return new F3ClassUnloadEvent(f3vm, (ClassUnloadEvent)evt);
    } else if (evt instanceof ExceptionEvent) {
        return new F3ExceptionEvent(f3vm, (ExceptionEvent)evt);
    } else if (evt instanceof MethodEntryEvent) {
        return new F3MethodEntryEvent(f3vm, (MethodEntryEvent)evt);
    } else if (evt instanceof MethodExitEvent) {
        return new F3MethodExitEvent(f3vm, (MethodExitEvent)evt);
    } else if (evt instanceof ModificationWatchpointEvent) {
        return new F3ModificationWatchpointEvent(f3vm, (ModificationWatchpointEvent)evt);
    } else if (evt instanceof MonitorContendedEnterEvent) {
        return new F3MonitorContendedEnterEvent(f3vm, (MonitorContendedEnterEvent)evt);
    } else if (evt instanceof MonitorContendedEnteredEvent) {
        return new F3MonitorContendedEnteredEvent(f3vm, (MonitorContendedEnteredEvent)evt);
    } else if (evt instanceof MonitorWaitEvent) {
        return new F3MonitorWaitEvent(f3vm, (MonitorWaitEvent)evt);
    } else if (evt instanceof MonitorWaitedEvent) {
        return new F3MonitorWaitedEvent(f3vm, (MonitorWaitedEvent)evt);
    } else if (evt instanceof StepEvent) {
        return new F3StepEvent(f3vm, (StepEvent)evt);
    } else if (evt instanceof ThreadDeathEvent) {
        return new F3ThreadDeathEvent(f3vm, (ThreadDeathEvent)evt);
    } else if (evt instanceof ThreadStartEvent) {
        return new F3ThreadStartEvent(f3vm, (ThreadStartEvent)evt);
    } else if (evt instanceof VMDeathEvent) {
        return new F3VMDeathEvent(f3vm, (VMDeathEvent)evt);
    } else if (evt instanceof VMDisconnectEvent) {
        return new F3VMDisconnectEvent(f3vm, (VMDisconnectEvent)evt);
    } else if (evt instanceof VMStartEvent) {
        return new F3VMStartEvent(f3vm, (VMStartEvent)evt);
    } else if (evt instanceof WatchpointEvent) {
        return new F3WatchpointEvent(f3vm, (WatchpointEvent)evt);
    } else if (evt instanceof LocatableEvent) {
        return new F3LocatableEvent(f3vm, (LocatableEvent)evt);
    } else {
        return new F3Event(f3vm, evt);
    }
}

@Override
public void jdiAccessWatchpoint(final AccessWatchpointEvent event)
{
  if (!override && !owner.isStarted())
  {
    return;
  }
  try
  {
    delegate.handleFieldRead(event, manager().generateLocalEvents());
  }
  catch (final Throwable e)
  {
    JiveDebugPlugin.log(e);
  }
}

/**
* Checks the type of WatchpointEvent and validates type of field-being-watched
* @param wpEvent
*/
   private void checkWatchPointEvent(WatchpointEvent wpEvent) {
       if (wpEvent instanceof AccessWatchpointEvent) {
           Assert.assertTrue(((AccessWatchpointEvent)wpEvent).valueCurrent().type().name().equals("float"));
           Assert.assertTrue(wpEvent.getClass().toString().equals("class org.f3.jdi.event.F3AccessWatchpointEvent"));
       } else if (wpEvent instanceof ModificationWatchpointEvent) {
           Assert.assertTrue(((ModificationWatchpointEvent)wpEvent).valueCurrent().type().name().equals("float"));
           Assert.assertTrue(wpEvent.getClass().toString().equals("class org.f3.jdi.event.F3ModificationWatchpointEvent"));
       }
   }

@Override
public boolean handleEvent(final Event event, final JDIDebugTarget target,
    final boolean suspendVote, final EventSet eventSet)
{
  if (owner.isActive())
  {
    owner.jdiHandler().jdiAccessWatchpoint((AccessWatchpointEvent) event);
  }
  return true;
}

/**
 * Notification of a field access in the target VM. Field modifications are not considered field
 * accesses.
 * 
 * @param event
 * 
 * @see <a href="">http://docs.oracle.com/javase/7/docs/jdk/api/jpda/jdi/index.html</a>
 */
@Override
public void jdiAccessWatchpoint(final AccessWatchpointEvent event)
{
  final Method method = event.location().method();
  if (method.isSynthetic() || method.isBridge() || method.name().contains("$"))
  {
    return;
  }
  final Field field = event.field();
  if (field.isSynthetic() || field.name().contains("$"))
  {
    return;
  }
  //
  this.currentEvent = event;
  this.currentThread = event.thread();
  //
  final long fId = registry.getFieldId(event.field());
  //
  final long oId = registry.getObjectId(event.object());
  //
  final long[] eventId = registry.encode(EventHandlerLite.KIND_FIELD_READ);
  //
  System.out.format(EventHandlerLite.ENCODED_FIELD_READ, eventId[0], eventId[1], oId, fId);
  //
  System.out.println(registry.decode(eventId));
  System.out.print(registry.decodeObject(oId));
  System.out.print(registry.decodeField(fId));
  //
  this.currentEvent = null;
  this.currentThread = null;
}

public F3AccessWatchpointEvent(F3VirtualMachine f3vm, AccessWatchpointEvent underlying) {
    super(f3vm, underlying);
}

public VisitableAccessWatchpointEvent(AccessWatchpointEvent event) {
    this.event = event;
}

@Override
public void visit(AccessWatchpointEvent event) {
}

@Override
public void dispatchFieldReadEvent(final AccessWatchpointEvent event)
{
  dispatchEvent(adapter().createFieldReadEvent(event));
}

@Override
public boolean handleEvent(Event event, JDIDebugTarget target, boolean suspendVote, EventSet eventSet) {
    /*if (event instanceof WatchpointEvent)
        System.out.println(event + " on " + FieldLVal.makeFieldLVal(((WatchpointEvent)event).object(), ((WatchpointEvent)event).field()).toString());
    else if (event instanceof com.sun.jdi.event.ClassPrepareEvent)
        System.out.println("Prep " + ((com.sun.jdi.event.ClassPrepareEvent)event).referenceType().name());
    else
        System.out.println(event);*/
    synchronized (SideEffectHandler.this) {
        if (effectsMap == null)  // We're not currently tracking side effects.
            return true;
        if (event instanceof WatchpointEvent) {
            WatchpointEvent watchEvent = (WatchpointEvent)event;
            //System.out.println(event + " on " + FieldLVal.makeFieldLVal(watchEvent.object(), watchEvent.field()).toString());
            ObjectReference obj = watchEvent.object();
            if (obj != null && obj.uniqueID() > maxID) {
                //System.out.println("Ignoring new object " + obj.toString());
                return true;
            }
            if (watchEvent instanceof ModificationWatchpointEvent) {
                ModificationWatchpointEvent modEvent = (ModificationWatchpointEvent)watchEvent;
                if (!modEvent.location().method().isStaticInitializer())  // If the field is modified in a static initializer, it must be the initialization of a static field of a newly-loaded class, which we don't want to revert.
                    recordEffect(FieldLVal.makeFieldLVal(obj, modEvent.field()), modEvent.valueCurrent(), modEvent.valueToBe());
                return true;
            } else if (watchEvent instanceof AccessWatchpointEvent) {
                AccessWatchpointEvent readEvent = (AccessWatchpointEvent)watchEvent;
                Value oldVal = readEvent.valueCurrent();
                if (oldVal instanceof ArrayReference) {
                    FieldLVal lval = FieldLVal.makeFieldLVal(obj, readEvent.field());
                    backupArray(lval, oldVal);
                    if (canDisable && !changedFields.contains(lval) && Utils.incrementMap(accessCounts, this) >= 10) {  // Disabling is slow, so we only do it for frequently-accessed fields.
                        try {
                            disabledWatchpoints.add(this);
                            setEnabled(false);
                        } catch (CoreException e) {
                            throw new RuntimeException(e);
                        }
                    }
                }
                /*else
                System.out.println("Ignoring read on non-array Object");*/
                return true;
            }
        }
        return super.handleEvent(event, target, suspendVote, eventSet);
    }
}

/**
 * Visit an {@code AccessWatchpointEvent}.
 *
 * @param event Event to visit
 */
void visit(AccessWatchpointEvent event);

/**
 * Creates and dispatches a field read event.
 */
public void dispatchFieldReadEvent(AccessWatchpointEvent event);

/**
 * Notification of a field access in the target VM.
 */
void jdiAccessWatchpoint(AccessWatchpointEvent event);