org.mortbay.io.nio

Class SelectChannelEndPoint

java.lang.Object

org.mortbay.io.nio.ChannelEndPoint

org.mortbay.io.nio.SelectChannelEndPoint

All Implemented Interfaces:

java.lang.Runnable, EndPoint

Direct Known Subclasses:

SelectChannelConnector.ConnectorEndPoint

public class SelectChannelEndPoint
extends ChannelEndPoint
implements java.lang.Runnable

An Endpoint that can be scheduled by SelectorManager.

Author:

gregw

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	SelectChannelEndPoint.IdleTask

Field Summary

Fields

Modifier and Type	Field and Description
protected Connection	_connection
protected boolean	_dispatched
protected int	_interestOps
protected java.nio.channels.SelectionKey	_key
protected SelectorManager	_manager
protected boolean	_readBlocked
protected SelectorManager.SelectSet	_selectSet
protected boolean	_writable
protected boolean	_writeBlocked

Fields inherited from class org.mortbay.io.nio.ChannelEndPoint

_channel, _gather2, _local, _remote, _socket

Constructor Summary

Constructors

Constructor and Description
SelectChannelEndPoint(java.nio.channels.SocketChannel channel, SelectorManager.SelectSet selectSet, java.nio.channels.SelectionKey key)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	blockReadable(long timeoutMs)
boolean	blockWritable(long timeoutMs)
void	cancelIdle()
void	close() Close any backing stream associated with the buffer
boolean	dispatch(boolean assumeShortDispatch) Put the endpoint into the dispatched state.
int	flush(Buffer buffer) Flush the buffer from the current getIndex to it's putIndex using whatever byte sink is backing the buffer.
int	flush(Buffer header, Buffer buffer, Buffer trailer) Flush the buffer from the current getIndex to it's putIndex using whatever byte sink is backing the buffer.
Connection	getConnection()
SelectorManager.SelectSet	getSelectSet()
org.mortbay.thread.Timeout.Task	getTimeoutTask()
protected void	idleExpired()
void	run()
void	scheduleIdle()
void	scheduleWrite()
void	setWritable(boolean writable)
java.lang.String	toString()
void	undispatch() Called when a dispatched thread is no longer handling the endpoint.

Methods inherited from class org.mortbay.io.nio.ChannelEndPoint

fill, flush, getChannel, getLocalAddr, getLocalHost, getLocalPort, getRemoteAddr, getRemoteHost, getRemotePort, getTransport, isBlocking, isBufferingInput, isBufferingOutput, isBufferred, isOpen, shutdownOutput

Methods inherited from class java.lang.Object

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

Field Detail

_manager

protected SelectorManager _manager

_selectSet

protected SelectorManager.SelectSet _selectSet

_dispatched

protected boolean _dispatched

_writable

protected boolean _writable

_key

protected java.nio.channels.SelectionKey _key

_interestOps

protected int _interestOps

_readBlocked

protected boolean _readBlocked

_writeBlocked

protected boolean _writeBlocked

_connection

protected Connection _connection

Constructor Detail

SelectChannelEndPoint

public SelectChannelEndPoint(java.nio.channels.SocketChannel channel,
                     SelectorManager.SelectSet selectSet,
                     java.nio.channels.SelectionKey key)

Method Detail

getConnection

public Connection getConnection()

dispatch

public boolean dispatch(boolean assumeShortDispatch)
                 throws java.io.IOException

Put the endpoint into the dispatched state. A blocked thread may be woken up by this call, or the endpoint placed in a state ready for a dispatch to a threadpool.

Parameters:

assumeShortDispatch - If true, the interested ops are not modified.

Returns:

True if the endpoint should be dispatched to a thread pool.

Throws:

java.io.IOException

scheduleIdle

public void scheduleIdle()

cancelIdle

public void cancelIdle()

idleExpired

protected void idleExpired()

undispatch

public void undispatch()

Called when a dispatched thread is no longer handling the endpoint. The selection key operations are updated.

flush

public int flush(Buffer header,
        Buffer buffer,
        Buffer trailer)
          throws java.io.IOException

Description copied from interface: EndPoint

Flush the buffer from the current getIndex to it's putIndex using whatever byte sink is backing the buffer. The getIndex is updated with the number of bytes flushed. Any mark set is cleared. If the entire contents of the buffer are flushed, then an implicit empty() is done. The passed header/trailer buffers are written before/after the contents of this buffer. This may be done either as gather writes, as a poke into this buffer or as several writes. The implementation is free to select the optimal mechanism.

Specified by:

flush in interface EndPoint

Overrides:

flush in class ChannelEndPoint

Parameters:

header - A buffer to write before flushing this buffer. This buffers getIndex is updated.

buffer - The buffer to flush. This buffers getIndex is updated.

trailer - A buffer to write after flushing this buffer. This buffers getIndex is updated.

Returns:

the total number of bytes written.

Throws:

java.io.IOException

flush

public int flush(Buffer buffer)
          throws java.io.IOException

Description copied from interface: EndPoint

Flush the buffer from the current getIndex to it's putIndex using whatever byte sink is backing the buffer. The getIndex is updated with the number of bytes flushed. Any mark set is cleared. If the entire contents of the buffer are flushed, then an implicit empty() is done.

Specified by:

flush in interface EndPoint

Overrides:

flush in class ChannelEndPoint

Parameters:

buffer - The buffer to flush. This buffers getIndex is updated.

Returns:

the number of bytes written

Throws:

java.io.IOException

blockReadable

public boolean blockReadable(long timeoutMs)
                      throws java.io.IOException

Specified by:

blockReadable in interface EndPoint

Overrides:

blockReadable in class ChannelEndPoint

Throws:

java.io.IOException

blockWritable

public boolean blockWritable(long timeoutMs)
                      throws java.io.IOException

Specified by:

blockWritable in interface EndPoint

Overrides:

blockWritable in class ChannelEndPoint

Throws:

java.io.IOException

setWritable

public void setWritable(boolean writable)

scheduleWrite

public void scheduleWrite()

run

public void run()

Specified by:

run in interface java.lang.Runnable

close

public void close()
           throws java.io.IOException

Description copied from interface: EndPoint

Close any backing stream associated with the buffer

Specified by:

close in interface EndPoint

Overrides:

close in class ChannelEndPoint

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getTimeoutTask

public org.mortbay.thread.Timeout.Task getTimeoutTask()

getSelectSet

public SelectorManager.SelectSet getSelectSet()