com.google.code.yanf4j.core.impl
Class AbstractSession

java.lang.Object
  com.google.code.yanf4j.core.impl.AbstractSession

All Implemented Interfaces:

Session

Direct Known Subclasses:

AbstractNioSession

public abstract class AbstractSession
extends java.lang.Object
implements Session

Base connection

Author:

dennis

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.code.yanf4j.core.Session

Session.SessionStatus

Field Summary

protected java.util.concurrent.ConcurrentHashMap<java.lang.String,java.lang.Object>	attributes
protected boolean	closed
protected java.util.concurrent.atomic.AtomicReference<WriteMessage>	currentMessage
protected CodecFactory.Decoder	decoder
protected Dispatcher	dispatchMessageDispatcher
protected CodecFactory.Encoder	encoder
protected Handler	handler
protected boolean	handleReadWriteConcurrently
java.util.concurrent.atomic.AtomicLong	lastOperationTimeStamp
protected static org.slf4j.Logger	log
protected boolean	loopback
protected IoBuffer	readBuffer
protected java.util.concurrent.atomic.AtomicLong	scheduleWritenBytes
protected long	sessionIdleTimeout
protected long	sessionTimeout
protected Statistics	statistics
protected boolean	useBlockingRead
protected boolean	useBlockingWrite
protected java.util.concurrent.locks.ReentrantLock	writeLock
protected java.util.Queue<WriteMessage>	writeQueue

Constructor Summary

AbstractSession(SessionConfig sessionConfig)

Method Summary

void	clearAttributes() Clear attributes
void	clearWriteQueue()
void	close() Close session
protected abstract void	closeChannel()
abstract void	decode()
protected void	dispatchReceivedMessage(java.lang.Object message)
java.lang.Object	getAttribute(java.lang.String key) Return attribute associated with key
CodecFactory.Decoder	getDecoder() Return current decoder
Dispatcher	getDispatchMessageDispatcher()
CodecFactory.Encoder	getEncoder() Return current encoder
Handler	getHandler()
long	getLastOperationTimeStamp() Return last operation timestamp,operation include read,write,idle
IoBuffer	getReadBuffer()
java.nio.ByteOrder	getReadBufferByteOrder() Return the session read buffer's byte order,big end or little end.
long	getScheduleWritenBytes() Return the bytes in write queue,there bytes is in memory.Use this method to controll writing speed.
long	getSessionIdleTimeout()
long	getSessionTimeout()
Statistics	getStatistics()
java.util.concurrent.locks.ReentrantLock	getWriteLock()
java.util.Queue<WriteMessage>	getWriteQueue()
boolean	isClosed() Check if session is closed
boolean	isExpired() Return true if session is expired,session is expired beacause you set the sessionTimeout,if since session's last operation form now is over this vlaue,isExpired return true,and Handler.onExpired() will be invoked.
boolean	isHandleReadWriteConcurrently() Return true if allow handling read and write concurrently,default is true.
boolean	isIdle() Check if session is idle
boolean	isLoopbackConnection() return true if it is a loopback connection
boolean	isUseBlockingRead() Return true if using blocking read
boolean	isUseBlockingWrite() Return true if using blocking write
protected void	onClosed()
protected void	onConnected()
protected void	onCreated()
void	onException(java.lang.Throwable e)
void	onExpired()
protected void	onIdle()
protected void	onStarted()
protected WriteMessage	preprocessWriteMessage(WriteMessage writeMessage) Pre-Process WriteMessage before writing to channel
void	removeAttribute(java.lang.String key) Remove attribute
void	setAttribute(java.lang.String key, java.lang.Object value) Set a attribute attched with this session
java.lang.Object	setAttributeIfAbsent(java.lang.String key, java.lang.Object value)
void	setClosed(boolean closed)
void	setDecoder(CodecFactory.Decoder decoder)
void	setEncoder(CodecFactory.Encoder encoder) Set encoder
void	setHandleReadWriteConcurrently(boolean handleReadWriteConcurrently)
void	setReadBuffer(IoBuffer readBuffer)
void	setReadBufferByteOrder(java.nio.ByteOrder readBufferByteOrder)
void	setSessionIdleTimeout(long sessionIdleTimeout)
void	setSessionTimeout(long sessionTimeout)
void	setUseBlockingRead(boolean useBlockingRead)
void	setUseBlockingWrite(boolean useBlockingWrite) Set if using blocking write
void	start() Start session
protected abstract void	start0()
long	transferFrom(long position, long count, java.nio.channels.FileChannel source)
long	transferTo(long position, long count, java.nio.channels.FileChannel target)
void	updateTimeStamp()
protected abstract WriteMessage	wrapMessage(java.lang.Object msg, java.util.concurrent.Future<java.lang.Boolean> writeFuture)
void	write(java.lang.Object packet) Write a message,if you don't care when the message is written
abstract void	writeFromUserCode(WriteMessage message)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.code.yanf4j.core.Session

flush, getLocalAddress, getRemoteSocketAddress

Field Detail

readBuffer

protected IoBuffer readBuffer

log

protected static final org.slf4j.Logger log

attributes

protected final java.util.concurrent.ConcurrentHashMap<java.lang.String,java.lang.Object> attributes

writeQueue

protected java.util.Queue<WriteMessage> writeQueue

sessionIdleTimeout

protected volatile long sessionIdleTimeout

sessionTimeout

protected volatile long sessionTimeout

encoder

protected CodecFactory.Encoder encoder

decoder

protected CodecFactory.Decoder decoder

closed

protected volatile boolean closed

statistics

protected Statistics statistics

handler

protected Handler handler

loopback

protected boolean loopback

lastOperationTimeStamp

public java.util.concurrent.atomic.AtomicLong lastOperationTimeStamp

scheduleWritenBytes

protected java.util.concurrent.atomic.AtomicLong scheduleWritenBytes

dispatchMessageDispatcher

protected final Dispatcher dispatchMessageDispatcher

useBlockingWrite

protected volatile boolean useBlockingWrite

useBlockingRead

protected volatile boolean useBlockingRead

handleReadWriteConcurrently

protected volatile boolean handleReadWriteConcurrently

writeLock

protected java.util.concurrent.locks.ReentrantLock writeLock

currentMessage

protected java.util.concurrent.atomic.AtomicReference<WriteMessage> currentMessage

Constructor Detail

AbstractSession

public AbstractSession(SessionConfig sessionConfig)

Method Detail

getSessionIdleTimeout

public long getSessionIdleTimeout()

Specified by:

getSessionIdleTimeout in interface Session

setSessionIdleTimeout

public void setSessionIdleTimeout(long sessionIdleTimeout)

Specified by:

setSessionIdleTimeout in interface Session

getSessionTimeout

public long getSessionTimeout()

Specified by:

getSessionTimeout in interface Session

setSessionTimeout

public void setSessionTimeout(long sessionTimeout)

Specified by:

setSessionTimeout in interface Session

getWriteQueue

public java.util.Queue<WriteMessage> getWriteQueue()

getStatistics

public Statistics getStatistics()

getHandler

public Handler getHandler()

Specified by:

getHandler in interface Session

getDispatchMessageDispatcher

public Dispatcher getDispatchMessageDispatcher()

getWriteLock

public java.util.concurrent.locks.ReentrantLock getWriteLock()

decode

public abstract void decode()

updateTimeStamp

public void updateTimeStamp()

getLastOperationTimeStamp

public long getLastOperationTimeStamp()

Description copied from interface: Session

Return last operation timestamp,operation include read,write,idle

Specified by:

getLastOperationTimeStamp in interface Session

Returns:

isHandleReadWriteConcurrently

public final boolean isHandleReadWriteConcurrently()

Description copied from interface: Session

Return true if allow handling read and write concurrently,default is true.

Specified by:

isHandleReadWriteConcurrently in interface Session

Returns:

setHandleReadWriteConcurrently

public final void setHandleReadWriteConcurrently(boolean handleReadWriteConcurrently)

Specified by:

setHandleReadWriteConcurrently in interface Session

getScheduleWritenBytes

public long getScheduleWritenBytes()

Description copied from interface: Session

Return the bytes in write queue,there bytes is in memory.Use this method to controll writing speed.

Specified by:

getScheduleWritenBytes in interface Session

Returns:

getEncoder

public CodecFactory.Encoder getEncoder()

Description copied from interface: Session

Return current encoder

Specified by:

getEncoder in interface Session

Returns:

setEncoder

public void setEncoder(CodecFactory.Encoder encoder)

Description copied from interface: Session

Set encoder

Specified by:

setEncoder in interface Session

getDecoder

public CodecFactory.Decoder getDecoder()

Description copied from interface: Session

Return current decoder

Specified by:

getDecoder in interface Session

Returns:

getReadBuffer

public IoBuffer getReadBuffer()

setReadBuffer

public void setReadBuffer(IoBuffer readBuffer)

setDecoder

public void setDecoder(CodecFactory.Decoder decoder)

Specified by:

setDecoder in interface Session

getReadBufferByteOrder

public final java.nio.ByteOrder getReadBufferByteOrder()

Description copied from interface: Session

Return the session read buffer's byte order,big end or little end.

Specified by:

getReadBufferByteOrder in interface Session

Returns:

setReadBufferByteOrder

public final void setReadBufferByteOrder(java.nio.ByteOrder readBufferByteOrder)

Specified by:

setReadBufferByteOrder in interface Session

onIdle

protected void onIdle()

onConnected

protected void onConnected()

onExpired

public void onExpired()

wrapMessage

protected abstract WriteMessage wrapMessage(java.lang.Object msg,
                                            java.util.concurrent.Future<java.lang.Boolean> writeFuture)

preprocessWriteMessage

protected WriteMessage preprocessWriteMessage(WriteMessage writeMessage)

Pre-Process WriteMessage before writing to channel

Parameters:

writeMessage -

Returns:

dispatchReceivedMessage

protected void dispatchReceivedMessage(java.lang.Object message)

isClosed

public final boolean isClosed()

Description copied from interface: Session

Check if session is closed

Specified by:

isClosed in interface Session

Returns:

setClosed

public final void setClosed(boolean closed)

close

public void close()

Description copied from interface: Session

Close session

Specified by:

close in interface Session

closeChannel

protected abstract void closeChannel()
                              throws java.io.IOException

Throws:

java.io.IOException

onException

public void onException(java.lang.Throwable e)

onClosed

protected void onClosed()

setAttribute

public void setAttribute(java.lang.String key,
                         java.lang.Object value)

Description copied from interface: Session

Set a attribute attched with this session

Specified by:

setAttribute in interface Session

setAttributeIfAbsent

public java.lang.Object setAttributeIfAbsent(java.lang.String key,
                                             java.lang.Object value)

Specified by:

setAttributeIfAbsent in interface Session

removeAttribute

public void removeAttribute(java.lang.String key)

Description copied from interface: Session

Remove attribute

Specified by:

removeAttribute in interface Session

getAttribute

public java.lang.Object getAttribute(java.lang.String key)

Description copied from interface: Session

Return attribute associated with key

Specified by:

getAttribute in interface Session

Returns:

clearAttributes

public void clearAttributes()

Description copied from interface: Session

Clear attributes

Specified by:

clearAttributes in interface Session

start

public void start()

Description copied from interface: Session

Start session

Specified by:

start in interface Session

start0

protected abstract void start0()

onStarted

protected void onStarted()

write

public void write(java.lang.Object packet)

Description copied from interface: Session

Write a message,if you don't care when the message is written

Specified by:

write in interface Session

writeFromUserCode

public abstract void writeFromUserCode(WriteMessage message)

isLoopbackConnection

public final boolean isLoopbackConnection()

Description copied from interface: Session

return true if it is a loopback connection

Specified by:

isLoopbackConnection in interface Session

Returns:

isUseBlockingWrite

public boolean isUseBlockingWrite()

Description copied from interface: Session

Return true if using blocking write

Specified by:

isUseBlockingWrite in interface Session

Returns:

setUseBlockingWrite

public void setUseBlockingWrite(boolean useBlockingWrite)

Description copied from interface: Session

Set if using blocking write

Specified by:

setUseBlockingWrite in interface Session

isUseBlockingRead

public boolean isUseBlockingRead()

Description copied from interface: Session

Return true if using blocking read

Specified by:

isUseBlockingRead in interface Session

Returns:

setUseBlockingRead

public void setUseBlockingRead(boolean useBlockingRead)

Specified by:

setUseBlockingRead in interface Session

clearWriteQueue

public void clearWriteQueue()

isExpired

public boolean isExpired()

Description copied from interface: Session

Return true if session is expired,session is expired beacause you set the sessionTimeout,if since session's last operation form now is over this vlaue,isExpired return true,and Handler.onExpired() will be invoked.

Specified by:

isExpired in interface Session

Returns:

isIdle

public boolean isIdle()

Description copied from interface: Session

Check if session is idle

Specified by:

isIdle in interface Session

Returns:

transferTo

public long transferTo(long position,
                       long count,
                       java.nio.channels.FileChannel target)
                throws java.io.IOException

Throws:

java.io.IOException

transferFrom

public long transferFrom(long position,
                         long count,
                         java.nio.channels.FileChannel source)
                  throws java.io.IOException

Throws:

java.io.IOException

onCreated

protected void onCreated()