Package org.apache.thrift.server

Class AbstractNonblockingServer.AbstractSelectThread

java.lang.Object

java.lang.Thread

org.apache.thrift.server.AbstractNonblockingServer.AbstractSelectThread

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

TNonblockingServer.SelectAcceptThread, TThreadedSelectorServer.SelectorThread

Enclosing class:

AbstractNonblockingServer

protected abstract class AbstractNonblockingServer.AbstractSelectThread
extends Thread

An abstract thread that handles selecting on a set of transports and FrameBuffers associated with selected keys corresponding to requests.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
protected final Set<AbstractNonblockingServer.FrameBuffer>	selectInterestChanges
protected Selector	selector

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
AbstractSelectThread()

Method Summary

Modifier and Type	Method	Description
protected void	cleanupSelectionKey(SelectionKey key)	Do connection-close cleanup on a given SelectionKey.
protected void	handleRead(SelectionKey key)	Do the work required to read from a readable client.
protected void	handleWrite(SelectionKey key)	Let a writable client get written, if there's data to be written.
protected void	processInterestChanges()	Check to see if there are any FrameBuffers that have switched their interest type from read to write or vice versa.
void	requestSelectInterestChange(AbstractNonblockingServer.FrameBuffer frameBuffer)	Add FrameBuffer to the list of select interest changes and wake up the selector if it's blocked.
void	wakeupSelector()	If the selector is blocked, wake it up.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Details

selector

protected Selector selector

selectInterestChanges

protected final Set<AbstractNonblockingServer.FrameBuffer> selectInterestChanges

Constructor Details

AbstractSelectThread

public AbstractSelectThread()
                     throws IOException

Throws:

IOException

Method Details

wakeupSelector

public void wakeupSelector()

If the selector is blocked, wake it up.

requestSelectInterestChange

public void requestSelectInterestChange(AbstractNonblockingServer.FrameBuffer frameBuffer)

Add FrameBuffer to the list of select interest changes and wake up the selector if it's blocked. When the select() call exits, it'll give the FrameBuffer a chance to change its interests.

processInterestChanges

protected void processInterestChanges()

Check to see if there are any FrameBuffers that have switched their interest type from read to write or vice versa.

handleRead

protected void handleRead(SelectionKey key)

Do the work required to read from a readable client. If the frame is fully read, then invoke the method call.

handleWrite

protected void handleWrite(SelectionKey key)

Let a writable client get written, if there's data to be written.

cleanupSelectionKey

protected void cleanupSelectionKey(SelectionKey key)

Do connection-close cleanup on a given SelectionKey.