org.apache.druid.server.coordinator.loading

Class HttpLoadQueuePeon

java.lang.Object

org.apache.druid.server.coordinator.loading.HttpLoadQueuePeon

All Implemented Interfaces:

LoadQueuePeon

public class HttpLoadQueuePeon
extends Object
implements LoadQueuePeon

Field Summary

Fields

Modifier and Type	Field and Description
static com.fasterxml.jackson.core.type.TypeReference<List<DataSegmentChangeRequest>>	REQUEST_ENTITY_TYPE_REF
static com.fasterxml.jackson.core.type.TypeReference<List<SegmentLoadDropHandler.DataSegmentChangeRequestAndStatus>>	RESPONSE_ENTITY_TYPE_REF

Constructor Summary

Constructors

Constructor and Description
HttpLoadQueuePeon(String baseUrl, com.fasterxml.jackson.databind.ObjectMapper jsonMapper, HttpClient httpClient, DruidCoordinatorConfig config, ScheduledExecutorService processingExecutor, ExecutorService callBackExecutor)

Method Summary

Modifier and Type	Method and Description
boolean	cancelOperation(DataSegment segment) Tries to cancel a load/drop operation.
void	dropSegment(DataSegment segment, LoadPeonCallback callback)
CoordinatorRunStats	getAndResetStats()
Set<SegmentHolder>	getSegmentsInQueue()
Set<DataSegment>	getSegmentsMarkedToDrop()
Set<DataSegment>	getSegmentsToDrop()
Set<DataSegment>	getSegmentsToLoad()
long	getSizeOfSegmentsToLoad()
Set<DataSegment>	getTimedOutSegments()
void	loadSegment(DataSegment segment, SegmentAction action, LoadPeonCallback callback)
void	markSegmentToDrop(DataSegment dataSegment)
void	start()
void	stop()
void	unmarkSegmentToDrop(DataSegment dataSegment)

Methods inherited from class java.lang.Object

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

Field Detail

REQUEST_ENTITY_TYPE_REF

public static final com.fasterxml.jackson.core.type.TypeReference<List<DataSegmentChangeRequest>> REQUEST_ENTITY_TYPE_REF

RESPONSE_ENTITY_TYPE_REF

public static final com.fasterxml.jackson.core.type.TypeReference<List<SegmentLoadDropHandler.DataSegmentChangeRequestAndStatus>> RESPONSE_ENTITY_TYPE_REF

Constructor Detail

HttpLoadQueuePeon

public HttpLoadQueuePeon(String baseUrl,
                         com.fasterxml.jackson.databind.ObjectMapper jsonMapper,
                         HttpClient httpClient,
                         DruidCoordinatorConfig config,
                         ScheduledExecutorService processingExecutor,
                         ExecutorService callBackExecutor)

Method Detail

start

public void start()

Specified by:

start in interface LoadQueuePeon

stop

public void stop()

Specified by:

stop in interface LoadQueuePeon

loadSegment

public void loadSegment(DataSegment segment,
                        SegmentAction action,
                        LoadPeonCallback callback)

Specified by:

loadSegment in interface LoadQueuePeon

dropSegment

public void dropSegment(DataSegment segment,
                        LoadPeonCallback callback)

Specified by:

dropSegment in interface LoadQueuePeon

getSegmentsToLoad

public Set<DataSegment> getSegmentsToLoad()

Specified by:

getSegmentsToLoad in interface LoadQueuePeon

getSegmentsToDrop

public Set<DataSegment> getSegmentsToDrop()

Specified by:

getSegmentsToDrop in interface LoadQueuePeon

getTimedOutSegments

public Set<DataSegment> getTimedOutSegments()

Specified by:

getTimedOutSegments in interface LoadQueuePeon

getSegmentsInQueue

public Set<SegmentHolder> getSegmentsInQueue()

Specified by:

getSegmentsInQueue in interface LoadQueuePeon

getSizeOfSegmentsToLoad

public long getSizeOfSegmentsToLoad()

Specified by:

getSizeOfSegmentsToLoad in interface LoadQueuePeon

getAndResetStats

public CoordinatorRunStats getAndResetStats()

Specified by:

getAndResetStats in interface LoadQueuePeon

markSegmentToDrop

public void markSegmentToDrop(DataSegment dataSegment)

Specified by:

markSegmentToDrop in interface LoadQueuePeon

unmarkSegmentToDrop

public void unmarkSegmentToDrop(DataSegment dataSegment)

Specified by:

unmarkSegmentToDrop in interface LoadQueuePeon

getSegmentsMarkedToDrop

public Set<DataSegment> getSegmentsMarkedToDrop()

Specified by:

getSegmentsMarkedToDrop in interface LoadQueuePeon

cancelOperation

public boolean cancelOperation(DataSegment segment)

Tries to cancel a load/drop operation. An load/drop request can be cancelled only if it has not already been sent to the corresponding server.

Specified by:

cancelOperation in interface LoadQueuePeon

Returns:

true if the operation was successfully cancelled