Package org.miaixz.bus.http.metric

Class Dispatcher

java.lang.Object

org.miaixz.bus.http.metric.Dispatcher

public class Dispatcher
extends Object

关于何时执行异步请求的策略 每个dispatcher使用一个ExecutorService在内部运行调用。 如果您提供自己的执行程序，它应该能够并发地运行配置的最大调用数

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
Dispatcher()
Dispatcher(ExecutorService executorService)

Method Summary

Modifier and Type	Method	Description
void	cancelAll()	取消当前排队或执行的所有调用。
void	enqueue(RealCall.AsyncCall call)
void	executed(RealCall call)	Used by Call#execute to signal it is in-flight.
ExecutorService	executorService()
RealCall.AsyncCall	findExistingCallWithHost(String host)
<T> void	finished(Deque<T> calls, T call)
void	finished(RealCall call)	Used by Call#execute to signal completion.
void	finished(RealCall.AsyncCall call)	Used by AsyncCall#run to signal completion.
int	getMaxRequests()
int	getMaxRequestsPerHost()
boolean	promoteAndExecute()	将符合条件的调用从readyAsyncCalls提升到runningAsyncCalls， 并在executor服务上运行它们。
List<NewCall>	queuedCalls()	Returns a snapshot of the calls currently awaiting execution.
int	queuedCallsCount()
List<NewCall>	runningCalls()	Returns a snapshot of the calls currently being executed.
int	runningCallsCount()
void	setIdleCallback(Runnable idleCallback)	设置一个回调，以便每次调度程序变为空闲时调用(当运行的调用数量返回零时)
void	setMaxRequests(int maxRequests)	设置并发执行的最大请求数。
void	setMaxRequestsPerHost(int maxRequestsPerHost)	设置每个主机并发执行的最大请求数。

Methods inherited from class java.lang.Object

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

Constructor Details

Dispatcher

public Dispatcher(ExecutorService executorService)

Dispatcher

public Dispatcher()

Method Details

executorService

public ExecutorService executorService()

getMaxRequests

public int getMaxRequests()

setMaxRequests

public void setMaxRequests(int maxRequests)

设置并发执行的最大请求数。上述请求在内存中排队，等待正在运行的调用完成 如果在调用它时有超过maxRequests的请求在运行，那么这些请求将保持运行状态

Parameters:

maxRequests - 最大请求数

getMaxRequestsPerHost

public int getMaxRequestsPerHost()

setMaxRequestsPerHost

public void setMaxRequestsPerHost(int maxRequestsPerHost)

设置每个主机并发执行的最大请求数。这将根据URL的主机名限制请求。 注意，对单个IP地址的并发请求仍然可能超过这个限制:多个主机名可能共享一个IP地址，或者通过相同的HTTP代理进行路由 如果在调用它时有超过maxRequestsPerHost的请求在运行，那么这些请求将保持运行状态

Parameters:

maxRequestsPerHost - 最大请求数

setIdleCallback

public void setIdleCallback(Runnable idleCallback)

设置一个回调，以便每次调度程序变为空闲时调用(当运行的调用数量返回零时)

Parameters:

idleCallback - 回调

enqueue

public void enqueue(RealCall.AsyncCall call)

findExistingCallWithHost

public RealCall.AsyncCall findExistingCallWithHost(String host)

cancelAll

public void cancelAll()

取消当前排队或执行的所有调用。包括同步执行的 NewCall.execute()和异步 执行的NewCall.enqueue(org.miaixz.bus.http.Callback)。

promoteAndExecute

public boolean promoteAndExecute()

将符合条件的调用从readyAsyncCalls提升到runningAsyncCalls， 并在executor服务上运行它们。必须不与同步调用，因为执行调用可以调用到用户代码

Returns:

如果调度程序当前正在运行调用，则为true

executed

public void executed(RealCall call)

Used by Call#execute to signal it is in-flight.

finished

public void finished(RealCall.AsyncCall call)

Used by AsyncCall#run to signal completion.

finished

public void finished(RealCall call)

Used by Call#execute to signal completion.

finished

public <T> void finished(Deque<T> calls,
 T call)

queuedCalls

public List<NewCall> queuedCalls()

Returns a snapshot of the calls currently awaiting execution.

runningCalls

public List<NewCall> runningCalls()

Returns a snapshot of the calls currently being executed.

queuedCallsCount

public int queuedCallsCount()

runningCallsCount

public int runningCallsCount()