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

Class AbstractCheckpointHandler<R extends ResponseBody,M extends CheckpointMessageParameters>

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<RestfulGateway,EmptyRequestBody,R,M>

org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler<R,M>

org.apache.flink.runtime.rest.handler.job.checkpoints.AbstractCheckpointHandler<R,M>

Type Parameters:

R - type of the response

All Implemented Interfaces:

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

Direct Known Subclasses:

CheckpointStatisticDetailsHandler, TaskCheckpointStatisticDetailsHandler

public abstract class AbstractCheckpointHandler<R extends ResponseBody,M extends CheckpointMessageParameters>
extends AbstractExecutionGraphHandler<R,M>

Base class for checkpoint related REST handler.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

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

Field Summary

Fields inherited from class org.apache.flink.runtime.rest.handler.AbstractHandler

log, MAPPER

Fields inherited from class org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler

leaderRetriever, logger, responseHeaders, timeout

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractCheckpointHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever, org.apache.flink.api.common.time.Time timeout, Map<String,String> responseHeaders, MessageHeaders<EmptyRequestBody,R,M> messageHeaders, ExecutionGraphCache executionGraphCache, Executor executor, CheckpointStatsCache checkpointStatsCache)

Method Summary

Modifier and Type	Method and Description
protected abstract R	handleCheckpointRequest(HandlerRequest<EmptyRequestBody,M> request, AbstractCheckpointStats checkpointStats) Called for each request with the corresponding AbstractCheckpointStats instance.
protected R	handleRequest(HandlerRequest<EmptyRequestBody,M> request, AccessExecutionGraph executionGraph) Called for each request after the corresponding AccessExecutionGraph has been retrieved from the ExecutionGraphCache.

Methods inherited from class org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler

handleRequest

Methods inherited from class org.apache.flink.runtime.rest.handler.AbstractRestHandler

getMessageHeaders, respondToRequest

Methods inherited from class org.apache.flink.runtime.rest.handler.AbstractHandler

closeAsync, closeHandlerAsync, respondAsLeader

Methods inherited from class org.apache.flink.runtime.rest.handler.LeaderRetrievalHandler

channelRead0

Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

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

Methods inherited from class org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.util.AutoCloseableAsync

close

Methods inherited from interface org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Detail

AbstractCheckpointHandler

protected AbstractCheckpointHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever,
                                    org.apache.flink.api.common.time.Time timeout,
                                    Map<String,String> responseHeaders,
                                    MessageHeaders<EmptyRequestBody,R,M> messageHeaders,
                                    ExecutionGraphCache executionGraphCache,
                                    Executor executor,
                                    CheckpointStatsCache checkpointStatsCache)

Method Detail

handleRequest

protected R handleRequest(HandlerRequest<EmptyRequestBody,M> request,
                          AccessExecutionGraph executionGraph)
                   throws RestHandlerException

Description copied from class: AbstractExecutionGraphHandler

Called for each request after the corresponding AccessExecutionGraph has been retrieved from the ExecutionGraphCache.

Specified by:

handleRequest in class AbstractExecutionGraphHandler<R extends ResponseBody,M extends CheckpointMessageParameters>

Parameters:

request - for further information

executionGraph - for which the handler was called

Returns:

Response

Throws:

RestHandlerException - if the handler could not process the request

handleCheckpointRequest

protected abstract R handleCheckpointRequest(HandlerRequest<EmptyRequestBody,M> request,
                                             AbstractCheckpointStats checkpointStats)
                                      throws RestHandlerException

Called for each request with the corresponding AbstractCheckpointStats instance.

Parameters:

request - for further information

checkpointStats - for which the handler is called

Returns:

Response

Throws:

RestHandlerException - if the handler could not handle the request