net.floodlightcontroller.core.internal
Class OFStatisticsFuture

java.lang.Object
  net.floodlightcontroller.core.internal.OFMessageFuture<java.util.List<OFStatistics>>
      net.floodlightcontroller.core.internal.OFStatisticsFuture

All Implemented Interfaces:

java.util.concurrent.Future<java.util.List<OFStatistics>>

public class OFStatisticsFuture
extends OFMessageFuture<java.util.List<OFStatistics>>

A concrete implementation that handles asynchronously receiving OFStatistics

Author:

David Erickson (daviderickson@cs.stanford.edu)

Field Summary

protected boolean

finished

Fields inherited from class net.floodlightcontroller.core.internal.OFMessageFuture

canceled, DEFAULT_TIMEOUT, DEFAULT_TIMEOUT_UNIT, latch, responseType, result, sw, threadPool, timeoutTimer, transactionId

Constructor Summary

OFStatisticsFuture(IThreadPoolService tp, IOFSwitch sw, int transactionId)

OFStatisticsFuture(IThreadPoolService tp, IOFSwitch sw, int transactionId, long timeout, java.util.concurrent.TimeUnit unit)

Method Summary

protected void	handleReply(IOFSwitch sw, OFMessage msg) Used to handle the specific expected message this Future was reigstered for, the specified msg parameter is guaranteed to match the type and transaction id specified.
protected boolean	isFinished() Called directly after handleReply, subclasses implement this method to indicate when the future can deregister itself from receiving future messages, and when it is safe to return the results to any waiting threads.
protected void	unRegister()

Methods inherited from class net.floodlightcontroller.core.internal.OFMessageFuture

cancel, deliverFuture, get, get, getTransactionId, isCancelled, isDone, setTransactionId

Methods inherited from class java.lang.Object

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

Field Detail

finished

protected volatile boolean finished

Constructor Detail

OFStatisticsFuture

public OFStatisticsFuture(IThreadPoolService tp,
                          IOFSwitch sw,
                          int transactionId)

OFStatisticsFuture

public OFStatisticsFuture(IThreadPoolService tp,
                          IOFSwitch sw,
                          int transactionId,
                          long timeout,
                          java.util.concurrent.TimeUnit unit)

Method Detail

handleReply

protected void handleReply(IOFSwitch sw,
                           OFMessage msg)

Description copied from class: OFMessageFuture

Used to handle the specific expected message this Future was reigstered for, the specified msg parameter is guaranteed to match the type and transaction id specified.

Specified by:

handleReply in class OFMessageFuture<java.util.List<OFStatistics>>

isFinished

protected boolean isFinished()

Description copied from class: OFMessageFuture

Called directly after handleReply, subclasses implement this method to indicate when the future can deregister itself from receiving future messages, and when it is safe to return the results to any waiting threads.

Specified by:

isFinished in class OFMessageFuture<java.util.List<OFStatistics>>

Returns:

when this Future has completed its work

unRegister

protected void unRegister()

Overrides:

unRegister in class OFMessageFuture<java.util.List<OFStatistics>>