org.eclipse.jetty.io.nio
类 SelectorManager

java.lang.Object
  org.eclipse.jetty.util.component.AbstractLifeCycle
      org.eclipse.jetty.io.nio.SelectorManager

所有已实现的接口：

Dumpable, LifeCycle

public abstract class SelectorManager
extends AbstractLifeCycle
implements Dumpable

The Selector Manager manages and number of SelectSets to allow NIO scheduling to scale to large numbers of connections.

嵌套类摘要

class

SelectorManager.SelectSet

从类 org.eclipse.jetty.util.component.AbstractLifeCycle 继承的嵌套类/接口

AbstractLifeCycle.AbstractLifeCycleListener

从接口 org.eclipse.jetty.util.component.LifeCycle 继承的嵌套类/接口

LifeCycle.Listener

字段摘要

static Logger

LOG

从类 org.eclipse.jetty.util.component.AbstractLifeCycle 继承的字段

_listeners, FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING

构造方法摘要

SelectorManager()

方法摘要

protected void	connectionFailed(SocketChannel channel, Throwable ex, Object attachment)
abstract boolean	dispatch(Runnable task)
protected void	doStart()
protected void	doStop()
String	dump()
void	dump(Appendable out, String indent)
protected abstract void	endPointClosed(SelectChannelEndPoint endpoint)
protected abstract void	endPointOpened(SelectChannelEndPoint endpoint)
protected abstract void	endPointUpgraded(ConnectedEndPoint endpoint, Connection oldConnection)
long	getLowResourcesConnections()
long	getLowResourcesMaxIdleTime()
long	getMaxIdleTime()
int	getSelectorPriorityDelta()
SelectorManager.SelectSet	getSelectSet(int i)
int	getSelectSets()
boolean	isDeferringInterestedOps0()
abstract AsyncConnection	newConnection(SocketChannel channel, AsyncEndPoint endpoint, Object attachment)
protected abstract SelectChannelEndPoint	newEndPoint(SocketChannel channel, SelectorManager.SelectSet selectSet, SelectionKey sKey) Create a new end point
void	register(ServerSocketChannel acceptChannel) Register a ServerSocketChannel
void	register(SocketChannel channel) Register a channel
void	register(SocketChannel channel, Object att) Register a channel
void	setDeferringInterestedOps0(boolean deferringInterestedOps0)
void	setLowResourcesConnections(long lowResourcesConnections) Set the number of connections, which if exceeded places this manager in low resources state.
void	setLowResourcesMaxIdleTime(long lowResourcesMaxIdleTime)
void	setMaxIdleTime(long maxIdleTime)
void	setSelectorPriorityDelta(int delta) Set the selector thread priorty delta.
void	setSelectSets(int selectSets)

从类 org.eclipse.jetty.util.component.AbstractLifeCycle 继承的方法

addLifeCycleListener, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop

从类 java.lang.Object 继承的方法

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

字段详细信息

LOG

public static final Logger LOG

构造方法详细信息

SelectorManager

public SelectorManager()

方法详细信息

setMaxIdleTime

public void setMaxIdleTime(long maxIdleTime)

参数：

maxIdleTime - The maximum period in milli seconds that a connection may be idle before it is closed.

另请参见：

setLowResourcesMaxIdleTime(long)

setSelectSets

public void setSelectSets(int selectSets)

参数：

selectSets - number of select sets to create

getMaxIdleTime

public long getMaxIdleTime()

返回：

the max idle time

getSelectSets

public int getSelectSets()

返回：

the number of select sets in use

getSelectSet

public SelectorManager.SelectSet getSelectSet(int i)

参数：

i -

返回：

The select set

register

public void register(SocketChannel channel,
                     Object att)

Register a channel

参数：

channel -

att - Attached Object

register

public void register(SocketChannel channel)

Register a channel

参数：

channel -

register

public void register(ServerSocketChannel acceptChannel)

Register a ServerSocketChannel

参数：

acceptChannel -

getSelectorPriorityDelta

public int getSelectorPriorityDelta()

返回：

delta The value to add to the selector thread priority.

setSelectorPriorityDelta

public void setSelectorPriorityDelta(int delta)

Set the selector thread priorty delta.

参数：

delta - The value to add to the selector thread priority.

getLowResourcesConnections

public long getLowResourcesConnections()

返回：

the lowResourcesConnections

setLowResourcesConnections

public void setLowResourcesConnections(long lowResourcesConnections)

Set the number of connections, which if exceeded places this manager in low resources state. This is not an exact measure as the connection count is averaged over the select sets.

参数：

lowResourcesConnections - the number of connections

另请参见：

setLowResourcesMaxIdleTime(long)

getLowResourcesMaxIdleTime

public long getLowResourcesMaxIdleTime()

返回：

the lowResourcesMaxIdleTime

setLowResourcesMaxIdleTime

public void setLowResourcesMaxIdleTime(long lowResourcesMaxIdleTime)

参数：

lowResourcesMaxIdleTime - the period in ms that a connection is allowed to be idle when this SelectSet has more connections than getLowResourcesConnections()

另请参见：

setMaxIdleTime(long)

dispatch

public abstract boolean dispatch(Runnable task)

doStart

protected void doStart()
                throws Exception

覆盖：

类 AbstractLifeCycle 中的 doStart

抛出：

Exception

doStop

protected void doStop()
               throws Exception

覆盖：

类 AbstractLifeCycle 中的 doStop

抛出：

Exception

endPointClosed

protected abstract void endPointClosed(SelectChannelEndPoint endpoint)

参数：

endpoint -

endPointOpened

protected abstract void endPointOpened(SelectChannelEndPoint endpoint)

参数：

endpoint -

endPointUpgraded

protected abstract void endPointUpgraded(ConnectedEndPoint endpoint,
                                         Connection oldConnection)

newConnection

public abstract AsyncConnection newConnection(SocketChannel channel,
                                              AsyncEndPoint endpoint,
                                              Object attachment)

newEndPoint

protected abstract SelectChannelEndPoint newEndPoint(SocketChannel channel,
                                                     SelectorManager.SelectSet selectSet,
                                                     SelectionKey sKey)
                                              throws IOException

Create a new end point

参数：

channel -

selectSet -

sKey - the selection key

返回：

the new endpoint SelectChannelEndPoint

抛出：

IOException

connectionFailed

protected void connectionFailed(SocketChannel channel,
                                Throwable ex,
                                Object attachment)

dump

public String dump()

指定者：

接口 Dumpable 中的 dump

dump

public void dump(Appendable out,
                 String indent)
          throws IOException

指定者：

接口 Dumpable 中的 dump

抛出：

IOException

isDeferringInterestedOps0

public boolean isDeferringInterestedOps0()

setDeferringInterestedOps0

public void setDeferringInterestedOps0(boolean deferringInterestedOps0)