dan200.computercraft.api.lua.LuaException Java Examples

@Override
public Object[] callMethod(final ILuaContext context, final int index, final Object[] arguments) throws LuaException, InterruptedException {
	final IMethodExecutor method = methods.getMethod(index);
	Preconditions.checkNotNull(method, "Invalid method index: %d", index);

	if (method.isAsynchronous()) return call(index, method, context, arguments);
	else {
		Object[] result = SynchronousExecutor.executeInMainThread(context, new SynchronousExecutor.Task() {
			@Override
			public Object[] execute() throws LuaException, InterruptedException {
				return call(index, method, context, arguments);
			}
		});
		return result;
	}
}
 

public static Object[] executeInMainThread(ILuaContext context, Task task) throws LuaException, InterruptedException {
	final Responder responder = new Responder(context, task);
	long taskId = context.issueMainThreadTask(responder);

	responder.waitForEvent(taskId);

	// This code was executed in main thread, so there are no special exceptions we need to pass
	final Throwable error = responder.error;
	if (error != null) {
		if (error instanceof LuaException) throw (LuaException)error;
		else throw new LuaException(AdapterLogicException.getMessageForThrowable(error));
	}
	return responder.result;
}
 

@Override
@Optional.Method(modid = ModIds.COMPUTERCRAFT)
public Object[] callMethod(IComputerAccess computer, ILuaContext context, int method, Object[] arguments) throws LuaException{
    try {
        return luaMethods.get(method).call(arguments);
    } catch(Exception e) {
        throw new LuaException(e.getMessage());
    }
}
 

@Override
@Optional.Method(modid = ModIds.COMPUTERCRAFT)
public Object[] callMethod(IComputerAccess computer, ILuaContext context, int method, Object[] arguments) throws LuaException, InterruptedException{
    try {
        return luaMethods.get(method).call(arguments);
    } catch(Exception e) {
        throw new LuaException(e.getMessage());
    }
}
 

@Override
@Optional.Method(modid = "ComputerCraft")
public Object[] callMethod(IComputerAccess computer, ILuaContext context, int method, Object[] arguments) throws LuaException {
       try {
           return callMethod(method, arguments);
       } catch(Exception e) {
       	// Rethrow errors as LuaExceptions for CC
       	throw new LuaException(e.getMessage());
       }
   }
 

@Override
public Object[] callMethod(IComputerAccess computer, ILuaContext context, int method, Object[] arguments) throws LuaException,
InterruptedException {

    if (method == 0) {
        if (arguments.length == 0)
            throw new LuaException("At least 1 argument is required (face)");
        return new Object[] { te.setFace(toFD(arguments[0])) };
    } else if (method == 1) {
        return new Object[] { te.getFace().ordinal() };
    } else if (method == 2) {
        if (!(te.getMovement() instanceof MovementSlide))
            throw new LuaException("This is not a slider motor!");
        if (arguments.length == 0)
            throw new LuaException("At least 1 argument is required (direction)");
        ((IMovementSlide) te.getMovement()).setDirection(toFD(arguments[0]));
        return new Object[] {};
    } else if (method == 3) {
        if (!(te.getMovement() instanceof MovementSlide))
            throw new LuaException("This is not a slider motor!");
        return new Object[] { ((IMovementSlide) te.getMovement()).getDirection().ordinal() };
    } else if (method == 4) {
        throw new LuaException("Not implemented yet, sorry D:");
        // if (arguments.length < 2)
        // throw new LuaException("At least 2 arguments are required (face, direction)");
        //
        // ForgeDirection face = toFD(arguments[0]);
        // ForgeDirection direction = toFD(arguments[1]);
        //
        // if (face == null || direction == null)
        // throw new LuaException("Invalid directions!");
        // if (face == direction || face == direction.getOpposite())
        // throw new LuaException("Motors cannot push or pull blocks!");
        //
        // te.setFace(face, true);
        // te.setDirection(direction, true);
        //
        // return new Object[] { true };
    } else if (method == 5) {
        return new Object[] { te.move() };
    }

    return null;
}
 

@Override
public Object[] callMethod(final IComputerAccess computer, final ILuaContext context, final int index, final Object[] arguments) throws LuaException, InterruptedException {
	// this should throw if peripheral isn't attached
	computer.getAttachmentName();

	final IMethodExecutor method = methods.getMethod(index);
	Preconditions.checkNotNull(method, "Invalid method index: %d", index);

	final IMethodCall preparedCall = prepareCall(method, computer, context);

	final Optional<String> returnSignal = method.getReturnSignal();
	if (returnSignal.isPresent()) {
		final int callbackId = SignallingGlobals.instance.nextCallbackId();
		final String returnSignalId = returnSignal.get();
		if (method.isAsynchronous()) {
			SignallingGlobals.instance.scheduleTask(new Runnable() {
				@Override
				public void run() {
					computer.queueEvent(returnSignalId, executeToSignal(callbackId, index, preparedCall, arguments));
				}
			});
		} else {
			context.issueMainThreadTask(new ILuaTask() {
				@Override
				public Object[] execute() {
					computer.queueEvent(returnSignalId, executeToSignal(callbackId, index, preparedCall, arguments));
					// this will be used as 'task_complete' result, so we will ignore it
					return NULL;
				}
			});
		}
		return new Object[] { callbackId };
	} else {
		if (method.isAsynchronous()) return executeCall(preparedCall, index, arguments);
		else {
			Object[] results = SynchronousExecutor.executeInMainThread(context, new SynchronousExecutor.Task() {
				@Override
				public Object[] execute() throws LuaException, InterruptedException {
					return executeCall(preparedCall, index, arguments);
				}
			});
			return results;
		}
	}
}
 

@Override
public Object[] callMethod(IComputerAccess computer, ILuaContext context, int method, Object[] arguments) throws LuaException, InterruptedException {
	return (peripheral != null)? peripheral.callMethod(computer, context, method, arguments) : null;
}
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

/**
 * Adds a custom command to the turtles command queue. Unlike peripheral methods, these custom commands will be executed
 * on the main thread, so are guaranteed to be able to access Minecraft objects safely, and will be queued up
 * with the turtles standard movement and tool commands. An issued command will return an unique integer, which will
 * be supplied as a parameter to a "turtle_response" event issued to the turtle after the command has completed. Look at the
 * lua source code for "rom/apis/turtle" for how to build a lua wrapper around this functionality.
 * @param command an object which will execute the custom command when its point in the queue is reached
 * @return the objects the command returned when executed. you should probably return these to the player
 * unchanged if called from a peripheral method.
 * @see ITurtleCommand
 */
public Object[] executeCommand( ILuaContext context, ITurtleCommand command ) throws LuaException, InterruptedException;
 

/**
* This is called when a lua program on an attached computercraft calls peripheral.call() with
* one of the methods exposed by getMethodNames().<br>
* <br>
* Be aware that this will be called from the ComputerCraft Lua thread, and must be thread-safe
* when interacting with minecraft objects.
* @param 	computer	The interface to the computercraft that is making the call. Remember that multiple
*						computers can be attached to a peripheral at once.
* @param	context		The context of the currently running lua thread. This can be used to wait for events
*						or otherwise yield.
* @param	method		An integer identifying which of the methods from getMethodNames() the computercraft
*						wishes to call. The integer indicates the index into the getMethodNames() table
*						that corresponds to the string passed into peripheral.call()
* @param	arguments	An array of objects, representing the arguments passed into peripheral.call().<br>
*						Lua values of type "string" will be represented by Object type String.<br>
*						Lua values of type "number" will be represented by Object type Double.<br>
*						Lua values of type "boolean" will be represented by Object type Boolean.<br>
*						Lua values of any other type will be represented by a null object.<br>
*						This array will be empty if no arguments are passed.
* @return 	An array of objects, representing values you wish to return to the lua program.<br>
*			Integers, Doubles, Floats, Strings, Booleans and null be converted to their corresponding lua type.<br>
*			All other types will be converted to nil.<br>
*			You may return null to indicate no values should be returned.
* @throws	Exception	If you throw any exception from this function, a lua error will be raised with the
*						same message as your exception. Use this to throw appropriate errors if the wrong
*						arguments are supplied to your method.
* @see 	#getMethodNames
*/
  public Object[] callMethod( IComputerAccess computer, ILuaContext context, int method, Object[] arguments ) throws LuaException, InterruptedException;
 

public Object[] execute() throws LuaException, InterruptedException;