Package org.aoju.bus.socket.plugins

Class HeartPlugin<T>

java.lang.Object

org.aoju.bus.socket.plugins.AbstractPlugin<T>

org.aoju.bus.socket.plugins.HeartPlugin<T>

All Implemented Interfaces:

NetMonitor, Plugin<T>

public abstract class HeartPlugin<T>
extends AbstractPlugin<T>

心跳插件

Since:

Java 17+

Author:

Kimi Liu

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	HeartPlugin.TimeoutCallback

Constructor Summary

Constructors

Constructor	Description
HeartPlugin(int heartRate, int timeout, TimeUnit unit)	心跳插件
HeartPlugin(int heartRate, int timeout, TimeUnit timeUnit, HeartPlugin.TimeoutCallback timeoutCallback)	心跳插件 心跳插件在断网场景可能会触发TCP Retransmission,导致无法感知到网络实际状态,可通过设置timeout关闭连接
HeartPlugin(int heartRate, TimeUnit timeUnit)	心跳插件

Method Summary

Modifier and Type	Method	Description
abstract boolean	isHeartMessage(AioSession session, T msg)	判断当前收到的消息是否为心跳消息。 心跳请求消息与响应消息可能相同，也可能不同，因实际场景而异，故接口定义不做区分。
final boolean	preProcess(AioSession session, T t)	对请求消息进行预处理,并决策是否进行后续的MessageProcessor处理 若返回false,则当前消息将被忽略 若返回true,该消息会正常秩序MessageProcessor.process.
abstract void	sendHeartRequest(AioSession session)	自定义心跳消息并发送
final void	stateEvent(SocketStatus socketStatus, AioSession session, Throwable throwable)	监听状态机事件

Methods inherited from class org.aoju.bus.socket.plugins.AbstractPlugin

afterRead, afterWrite, beforeRead, beforeWrite, shouldAccept

Methods inherited from class java.lang.Object

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

Constructor Details

HeartPlugin

public HeartPlugin(int heartRate,
 TimeUnit timeUnit)

心跳插件

Parameters:

heartRate - 心跳触发频率

timeUnit - heatRate单位

HeartPlugin

public HeartPlugin(int heartRate,
 int timeout,
 TimeUnit unit)

心跳插件

心跳插件在断网场景可能会触发TCP Retransmission,导致无法感知到网络实际状态,可通过设置timeout关闭连接

Parameters:

heartRate - 心跳触发频率

timeout - 消息超时时间

unit - 时间单位

HeartPlugin

public HeartPlugin(int heartRate,
 int timeout,
 TimeUnit timeUnit,
 HeartPlugin.TimeoutCallback timeoutCallback)

心跳插件 心跳插件在断网场景可能会触发TCP Retransmission,导致无法感知到网络实际状态,可通过设置timeout关闭连接

Parameters:

heartRate - 心跳触发频率

timeout - 消息超时时间

timeUnit - 时间单位

timeoutCallback - 超时回调

Method Details

preProcess

public final boolean preProcess(AioSession session,
 T t)

Description copied from interface: Plugin

对请求消息进行预处理,并决策是否进行后续的MessageProcessor处理 若返回false,则当前消息将被忽略 若返回true,该消息会正常秩序MessageProcessor.process.

Specified by:

preProcess in interface Plugin<T>

Overrides:

preProcess in class AbstractPlugin<T>

Parameters:

session - 会话

t - 对象

Returns:

the true/false

stateEvent

public final void stateEvent(SocketStatus socketStatus,
 AioSession session,
 Throwable throwable)

Description copied from interface: Plugin

监听状态机事件

Specified by:

stateEvent in interface Plugin<T>

Overrides:

stateEvent in class AbstractPlugin<T>

Parameters:

socketStatus - 状态

session - 会话

throwable - 线程

See Also:

• MessageProcessor.stateEvent(AioSession, SocketStatus, Throwable)

sendHeartRequest

public abstract void sendHeartRequest(AioSession session)
                               throws IOException

自定义心跳消息并发送

Parameters:

session - 会话

Throws:

IOException - 异常

isHeartMessage

public abstract boolean isHeartMessage(AioSession session,
 T msg)

判断当前收到的消息是否为心跳消息。 心跳请求消息与响应消息可能相同，也可能不同，因实际场景而异，故接口定义不做区分。

Parameters:

session - 会话

msg - 消息

Returns:

the true/false