Package org.marketcetera.modules.async

Class SimpleAsyncProcessor.DataFlowHandler

java.lang.Object

org.marketcetera.modules.async.SimpleAsyncProcessor.DataFlowHandler

All Implemented Interfaces:

Runnable

Enclosing class:

SimpleAsyncProcessor

private static class SimpleAsyncProcessor.DataFlowHandler
extends Object
implements Runnable

Instances of this class keep track of the queue of data items accumulated for the data flow and the thread that is responsible for processing those items.

Field Summary

Fields

Modifier and Type	Field	Description
private BlockingQueue<Object>	mDataQueue	The queue that receives data from the upstream module.
private DataEmitterSupport	mEmitterSupport	The emitter support instance used for publishing data.
private Future<?>	mFuture	The future for tracking this task.

Constructor Summary

Constructors

Constructor	Description
DataFlowHandler(DataEmitterSupport inEmitterSupport)	Creates an instance.

Method Summary

Modifier and Type	Method	Description
(package private) Future<?>	getFuture()	Gets the future that can be used to track this handler's execution.
(package private) int	getQueueSize()	Returns the total number of unprocessed data items in the queue.
(package private) void	receiveData(Object inData)	Supplies a received data item to the handler.
void	run()
(package private) void	setFuture(Future<?> inFuture)	Sets the future that was obtained after submitting this task to the thread pool.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mEmitterSupport

private final DataEmitterSupport mEmitterSupport

The emitter support instance used for publishing data.

mDataQueue

private final BlockingQueue<Object> mDataQueue

The queue that receives data from the upstream module. The handler removes data from this queue and publishes it to the downstream module.

mFuture

private Future<?> mFuture

The future for tracking this task.

Constructor Detail

DataFlowHandler

DataFlowHandler(DataEmitterSupport inEmitterSupport)

Creates an instance.

Parameters:

inEmitterSupport - the emitter support instance to emit data for the data flow.

Method Detail

run

public void run()

Specified by:

run in interface Runnable

getQueueSize

int getQueueSize()

Returns the total number of unprocessed data items in the queue.

Returns:

the total number of unprocessed data items in the queue.

receiveData

void receiveData(Object inData)

Supplies a received data item to the handler. The provided data item is added to the queue of unprocessed items.

Parameters:

inData - the data item received.

getFuture

Future<?> getFuture()

Gets the future that can be used to track this handler's execution.

Returns:

the future for this handler.

setFuture

void setFuture(Future<?> inFuture)

Sets the future that was obtained after submitting this task to the thread pool.

Parameters:

inFuture - the future obtained after submitting this task to the thread pool.