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

Class CheckpointingStatisticsHandler

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.checkpoints.AbstractCheckpointStatsHandler<CheckpointingStatistics,JobMessageParameters>

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

All Implemented Interfaces:

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

public class CheckpointingStatisticsHandler
extends AbstractCheckpointStatsHandler<CheckpointingStatistics,JobMessageParameters>
implements OnlyExecutionGraphJsonArchivist

Handler which serves the checkpoint statistics.

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

Constructor

Description

CheckpointingStatisticsHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever, Duration timeout, Map<String,String> responseHeaders, MessageHeaders<EmptyRequestBody,CheckpointingStatistics,JobMessageParameters> messageHeaders, org.apache.flink.shaded.guava32.com.google.common.cache.Cache<org.apache.flink.api.common.JobID,CompletableFuture<CheckpointStatsSnapshot>> checkpointStatsSnapshotCache, Executor executor)

Method Summary

Modifier and Type	Method	Description
Collection<ArchivedJson>	archiveJsonWithPath(AccessExecutionGraph graph)	Returns a Collection of ArchivedJsons containing JSON responses and their respective REST URL for a given job.
protected CheckpointingStatistics	handleCheckpointStatsRequest(HandlerRequest<EmptyRequestBody> request, CheckpointStatsSnapshot checkpointStatsSnapshot)

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

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, getTimeout

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

Methods inherited from interface org.apache.flink.runtime.webmonitor.history.OnlyExecutionGraphJsonArchivist

archiveJsonWithPath

Constructor Details

CheckpointingStatisticsHandler

public CheckpointingStatisticsHandler(GatewayRetriever<? extends RestfulGateway> leaderRetriever,
 Duration timeout,
 Map<String,String> responseHeaders,
 MessageHeaders<EmptyRequestBody,CheckpointingStatistics,JobMessageParameters> messageHeaders,
 org.apache.flink.shaded.guava32.com.google.common.cache.Cache<org.apache.flink.api.common.JobID,CompletableFuture<CheckpointStatsSnapshot>> checkpointStatsSnapshotCache,
 Executor executor)

Method Details

handleCheckpointStatsRequest

protected CheckpointingStatistics handleCheckpointStatsRequest(HandlerRequest<EmptyRequestBody> request,
 CheckpointStatsSnapshot checkpointStatsSnapshot)
                                                        throws RestHandlerException

Specified by:

handleCheckpointStatsRequest in class AbstractCheckpointStatsHandler<CheckpointingStatistics,JobMessageParameters>

Throws:

RestHandlerException

archiveJsonWithPath

public Collection<ArchivedJson> archiveJsonWithPath(AccessExecutionGraph graph)
                                             throws IOException

Description copied from interface: OnlyExecutionGraphJsonArchivist

Returns a Collection of ArchivedJsons containing JSON responses and their respective REST URL for a given job.

The collection should contain one entry for every response that could be generated for the given job, for example one entry for each task. The REST URLs should be unique and must not contain placeholders.

Specified by:

archiveJsonWithPath in interface OnlyExecutionGraphJsonArchivist

Parameters:

graph - AccessExecutionGraph for which the responses should be generated

Returns:

Collection containing an ArchivedJson for every response that could be generated for the given job

Throws:

IOException - thrown if the JSON generation fails