org.apache.flink.runtime.rest.handler.job.rescaling

类 RescalingHandlers.RescalingTriggerHandler

java.lang.Object

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler<RoutedRequest>

org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler<T>

org.apache.flink.runtime.rest.handler.AbstractHandler<T,R,M>

org.apache.flink.runtime.rest.handler.AbstractRestHandler<T,B,TriggerResponse,M>

org.apache.flink.runtime.rest.handler.async.AbstractAsynchronousOperationHandlers.TriggerHandler<RestfulGateway,EmptyRequestBody,RescalingTriggerMessageParameters>

org.apache.flink.runtime.rest.handler.job.rescaling.RescalingHandlers.RescalingTriggerHandler

所有已实现的接口:

AutoCloseable, org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler, org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler, org.apache.flink.util.AutoCloseableAsync

封闭类:

RescalingHandlers

public class RescalingHandlers.RescalingTriggerHandler
extends AbstractAsynchronousOperationHandlers.TriggerHandler<RestfulGateway,EmptyRequestBody,RescalingTriggerMessageParameters>

Handler which triggers the rescaling of the specified job.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler.Sharable

字段概要

从类继承的字段 org.apache.flink.runtime.rest.handler.AbstractHandler

log, MAPPER

从类继承的字段 org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler

leaderRetriever, logger, responseHeaders, timeout

构造器概要

构造器

构造器和说明
RescalingTriggerHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever, org.apache.flink.api.common.time.Time timeout, Map<String,String> responseHeaders)

方法概要

限定符和类型	方法和说明
protected AsynchronousJobOperationKey	createOperationKey(HandlerRequest<EmptyRequestBody> request) Create the operation key under which the result future of the asynchronous operation will be stored.
CompletableFuture<TriggerResponse>	handleRequest(HandlerRequest<EmptyRequestBody> request, RestfulGateway gateway) This method is called for every incoming request and returns a CompletableFuture containing a the response.
protected CompletableFuture<Acknowledge>	triggerOperation(HandlerRequest<EmptyRequestBody> request, RestfulGateway gateway) Trigger the asynchronous operation and return its future result.

从类继承的方法 org.apache.flink.runtime.rest.handler.AbstractRestHandler

getMessageHeaders, respondToRequest

从类继承的方法 org.apache.flink.runtime.rest.handler.AbstractHandler

closeAsync, closeHandlerAsync, respondAsLeader

从类继承的方法 org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler

channelRead0

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.util.AutoCloseableAsync

close

从接口继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

构造器详细资料

RescalingTriggerHandler

public RescalingTriggerHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever,
                               org.apache.flink.api.common.time.Time timeout,
                               Map<String,String> responseHeaders)

方法详细资料

handleRequest

public CompletableFuture<TriggerResponse> handleRequest(@Nonnull
                                                        HandlerRequest<EmptyRequestBody> request,
                                                        @Nonnull
                                                        RestfulGateway gateway)
                                                 throws RestHandlerException

从类复制的说明: AbstractRestHandler

This method is called for every incoming request and returns a CompletableFuture containing a the response.

Implementations may decide whether to throw RestHandlerExceptions or fail the returned CompletableFuture with a RestHandlerException.

Failing the future with another exception type or throwing unchecked exceptions is regarded as an implementation error as it does not allow us to provide a meaningful HTTP status code. In this case a HttpResponseStatus.INTERNAL_SERVER_ERROR will be returned.

覆盖:

handleRequest 在类中 AbstractAsynchronousOperationHandlers.TriggerHandler<RestfulGateway,EmptyRequestBody,RescalingTriggerMessageParameters>

参数:

request - request that should be handled

gateway - leader gateway

返回:

future containing a handler response

抛出:

RestHandlerException - if the handling failed

triggerOperation

protected CompletableFuture<Acknowledge> triggerOperation(HandlerRequest<EmptyRequestBody> request,
                                                          RestfulGateway gateway)

从类复制的说明: AbstractAsynchronousOperationHandlers.TriggerHandler

Trigger the asynchronous operation and return its future result.

指定者:

triggerOperation 在类中 AbstractAsynchronousOperationHandlers.TriggerHandler<RestfulGateway,EmptyRequestBody,RescalingTriggerMessageParameters>

参数:

request - with which the trigger handler has been called

gateway - to the leader

返回:

Future result of the asynchronous operation

createOperationKey

protected AsynchronousJobOperationKey createOperationKey(HandlerRequest<EmptyRequestBody> request)

从类复制的说明: AbstractAsynchronousOperationHandlers.TriggerHandler

Create the operation key under which the result future of the asynchronous operation will be stored.

指定者:

createOperationKey 在类中 AbstractAsynchronousOperationHandlers.TriggerHandler<RestfulGateway,EmptyRequestBody,RescalingTriggerMessageParameters>

参数:

request - with which the trigger handler has been called.

返回:

Operation key under which the result future will be stored