org.glassfish.grizzly.utils
Class ActivityCheckFilter

java.lang.Object
  org.glassfish.grizzly.filterchain.BaseFilter
      org.glassfish.grizzly.utils.ActivityCheckFilter

All Implemented Interfaces:

Filter

public class ActivityCheckFilter
extends BaseFilter

The Filter is responsible for tracking Connection activity and closing Connection ones it becomes idle for certain amount of time. Unlike IdleTimeoutFilter, this Filter assumes Connection is idle, even if some event is being executed on it, so it really requires some action to be executed on Connection to reset the timeout.

Author:

Alexey Stashok

See Also:

IdleTimeoutFilter

Nested Class Summary

static interface

ActivityCheckFilter.TimeoutHandler

Field Summary

static java.lang.String

ACTIVE_ATTRIBUTE_NAME

Constructor Summary

protected	ActivityCheckFilter(DelayedExecutor executor, DelayedExecutor.Worker<Connection> worker, long timeout, java.util.concurrent.TimeUnit timeoutUnit)
	ActivityCheckFilter(DelayedExecutor executor, long timeout, java.util.concurrent.TimeUnit timeoutUnit)
	ActivityCheckFilter(DelayedExecutor executor, long timeout, java.util.concurrent.TimeUnit timeoutUnit, ActivityCheckFilter.TimeoutHandler handler)

Method Summary

static DelayedExecutor	createDefaultIdleDelayedExecutor()
static DelayedExecutor	createDefaultIdleDelayedExecutor(long checkInterval, java.util.concurrent.TimeUnit checkIntervalUnit)
long	getTimeout(java.util.concurrent.TimeUnit timeunit)
NextAction	handleAccept(FilterChainContext ctx) Execute a unit of processing work to be performed, when server channel has accepted the client connection.
NextAction	handleClose(FilterChainContext ctx) Execute a unit of processing work to be performed, when connection has been closed.
NextAction	handleConnect(FilterChainContext ctx) Execute a unit of processing work to be performed, when channel gets connected.
NextAction	handleRead(FilterChainContext ctx) Execute a unit of processing work to be performed, when channel will become available for reading.
NextAction	handleWrite(FilterChainContext ctx) Execute a unit of processing work to be performed, when some data should be written on channel.

Methods inherited from class org.glassfish.grizzly.filterchain.BaseFilter

createContext, exceptionOccurred, getFilterChain, getIndex, handleEvent, onAdded, onFilterChainChanged, onRemoved

Methods inherited from class java.lang.Object

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

Field Detail

ACTIVE_ATTRIBUTE_NAME

public static final java.lang.String ACTIVE_ATTRIBUTE_NAME

See Also:

Constant Field Values

Constructor Detail

ActivityCheckFilter

public ActivityCheckFilter(DelayedExecutor executor,
                           long timeout,
                           java.util.concurrent.TimeUnit timeoutUnit)

ActivityCheckFilter

public ActivityCheckFilter(DelayedExecutor executor,
                           long timeout,
                           java.util.concurrent.TimeUnit timeoutUnit,
                           ActivityCheckFilter.TimeoutHandler handler)

ActivityCheckFilter

protected ActivityCheckFilter(DelayedExecutor executor,
                              DelayedExecutor.Worker<Connection> worker,
                              long timeout,
                              java.util.concurrent.TimeUnit timeoutUnit)

Method Detail

handleAccept

public NextAction handleAccept(FilterChainContext ctx)
                        throws java.io.IOException

Description copied from class: BaseFilter

Execute a unit of processing work to be performed, when server channel has accepted the client connection. This Filter may either complete the required processing and return false, or delegate remaining processing to the next Filter in a FilterChain containing this Filter by returning true.

Specified by:

handleAccept in interface Filter

Overrides:

handleAccept in class BaseFilter

Parameters:

ctx - FilterChainContext

Returns:

NextAction instruction for FilterChain, how it should continue the execution

Throws:

java.io.IOException

handleConnect

public NextAction handleConnect(FilterChainContext ctx)
                         throws java.io.IOException

Description copied from class: BaseFilter

Execute a unit of processing work to be performed, when channel gets connected. This Filter may either complete the required processing and return false, or delegate remaining processing to the next Filter in a FilterChain containing this Filter by returning true.

Specified by:

handleConnect in interface Filter

Overrides:

handleConnect in class BaseFilter

Parameters:

ctx - FilterChainContext

Returns:

NextAction instruction for FilterChain, how it should continue the execution

Throws:

java.io.IOException

handleRead

public NextAction handleRead(FilterChainContext ctx)
                      throws java.io.IOException

Description copied from class: BaseFilter

Execute a unit of processing work to be performed, when channel will become available for reading. This Filter may either complete the required processing and return false, or delegate remaining processing to the next Filter in a FilterChain containing this Filter by returning true.

Specified by:

handleRead in interface Filter

Overrides:

handleRead in class BaseFilter

Parameters:

ctx - FilterChainContext

Returns:

NextAction instruction for FilterChain, how it should continue the execution

Throws:

java.io.IOException

handleWrite

public NextAction handleWrite(FilterChainContext ctx)
                       throws java.io.IOException

Description copied from class: BaseFilter

Execute a unit of processing work to be performed, when some data should be written on channel. This Filter may either complete the required processing and return false, or delegate remaining processing to the next Filter in a FilterChain containing this Filter by returning true.

Specified by:

handleWrite in interface Filter

Overrides:

handleWrite in class BaseFilter

Parameters:

ctx - FilterChainContext

Returns:

NextAction instruction for FilterChain, how it should continue the execution

Throws:

java.io.IOException

handleClose

public NextAction handleClose(FilterChainContext ctx)
                       throws java.io.IOException

Description copied from class: BaseFilter

Execute a unit of processing work to be performed, when connection has been closed. This Filter may either complete the required processing and return false, or delegate remaining processing to the next Filter in a FilterChain containing this Filter by returning true.

Specified by:

handleClose in interface Filter

Overrides:

handleClose in class BaseFilter

Parameters:

ctx - FilterChainContext

Returns:

NextAction instruction for FilterChain, how it should continue the execution

Throws:

java.io.IOException

createDefaultIdleDelayedExecutor

public static DelayedExecutor createDefaultIdleDelayedExecutor()

createDefaultIdleDelayedExecutor

public static DelayedExecutor createDefaultIdleDelayedExecutor(long checkInterval,
                                                               java.util.concurrent.TimeUnit checkIntervalUnit)

getTimeout

public long getTimeout(java.util.concurrent.TimeUnit timeunit)