Wikibase\Repo\Dumpers\DumpGenerator Class Reference

DumpGenerator generates a dump of a given set of entities, excluding redirects. More...

Inheritance diagram for Wikibase\Repo\Dumpers\DumpGenerator:

Public Member Functions
	__construct ( $out, EntityPrefetcher $entityPrefetcher)
	setLimit ( $limit)
	Set maximum number of entities produced.
	setBatchSize ( $batchSize)
	Sets the batch size for processing.
	setProgressReporter (MessageReporter $progressReporter)
	setExceptionHandler (ExceptionHandler $exceptionHandler)
	setShardingFilter ( $shardingFactor, $shard)
	Set the sharding factor and desired shard.
	setEntityTypesFilter ( $types)
	Set the entity types to be included in the output.
	setBatchCallback (callable $callback)
	Set a callback that is called once per batch, at the beginning of each batch.
	generateDump (EntityIdPager $idPager)
	Generates a dump, writing to the file handle provided to the constructor.

Protected Member Functions
	writeToDump ( $data)
	Writers the given string to the output provided to the constructor.
	preDump ()
	Do something before dumping data.
	postDump ()
	Do something after dumping data.
	preBatchDump ( $entities)
	Do something before dumping a batch of entities.
	preEntityDump ( $dumpCount)
	Do something before dumping entity.
	postEntityDump ( $dumpCount)
	Do something after dumping entity.
	generateDumpForEntityId (EntityId $entityId)
	Produce dump data for specific entity.

Protected Attributes
	$batchSize = 100
	$out
	$shardingFactor = 1
	$shard = 0
	$progressReporter
	$exceptionHandler
	$entityPrefetcher
	$entityTypes
	$limit = 0

Private Member Functions
	idMatchesFilters (EntityId $entityId)
	idMatchesShard (EntityId $entityId)
	idMatchesType (EntityId $entityId)
	dumpEntities (array $entityIds, &$dumpCount)
	Dump list of entities.

Private Attributes
	$batchCallback

Detailed Description

DumpGenerator generates a dump of a given set of entities, excluding redirects.

Copyright

GPL-2.0-or-later

Author

Daniel Kinzler

Constructor & Destructor Documentation

__construct()

Wikibase\Repo\Dumpers\DumpGenerator::__construct	(		$out,
		EntityPrefetcher	$entityPrefetcher )

Parameters

resource	$out
EntityPrefetcher	$entityPrefetcher

Exceptions

InvalidArgumentException

Member Function Documentation

dumpEntities()

Wikibase\Repo\Dumpers\DumpGenerator::dumpEntities ( array $entityIds, & $dumpCount )

private

Dump list of entities.

Parameters

EntityId[]	$entityIds
int	&$dumpCount	The number of entities already dumped (will be updated).

generateDump()

Wikibase\Repo\Dumpers\DumpGenerator::generateDump

(

EntityIdPager

$idPager

)

Generates a dump, writing to the file handle provided to the constructor.

Parameters

EntityIdPager

$idPager

generateDumpForEntityId()

Wikibase\Repo\Dumpers\DumpGenerator::generateDumpForEntityId ( EntityId $entityId )

abstractprotected

Produce dump data for specific entity.

Parameters

EntityId

$entityId

Exceptions

EntityLookupException
StorageException

Returns

string|null

Reimplemented in Wikibase\Repo\Dumpers\JsonDumpGenerator, and Wikibase\Repo\Dumpers\RdfDumpGenerator.

idMatchesFilters()

Wikibase\Repo\Dumpers\DumpGenerator::idMatchesFilters ( EntityId $entityId )

private

idMatchesShard()

Wikibase\Repo\Dumpers\DumpGenerator::idMatchesShard ( EntityId $entityId )

private

idMatchesType()

Wikibase\Repo\Dumpers\DumpGenerator::idMatchesType ( EntityId $entityId )

private

postDump()

Wikibase\Repo\Dumpers\DumpGenerator::postDump ( )

protected

Do something after dumping data.

Reimplemented in Wikibase\Repo\Dumpers\JsonDumpGenerator, and Wikibase\Repo\Dumpers\RdfDumpGenerator.

postEntityDump()

Wikibase\Repo\Dumpers\DumpGenerator::postEntityDump ( $dumpCount )

protected

Do something after dumping entity.

Parameters

int

$dumpCount

preBatchDump()

Wikibase\Repo\Dumpers\DumpGenerator::preBatchDump ( $entities )

protected

Do something before dumping a batch of entities.

Parameters

EntityId[]

$entities

preDump()

Wikibase\Repo\Dumpers\DumpGenerator::preDump ( )

protected

Do something before dumping data.

Reimplemented in Wikibase\Repo\Dumpers\JsonDumpGenerator, and Wikibase\Repo\Dumpers\RdfDumpGenerator.

preEntityDump()

Wikibase\Repo\Dumpers\DumpGenerator::preEntityDump ( $dumpCount )

protected

Do something before dumping entity.

Parameters

int

$dumpCount

Reimplemented in Wikibase\Repo\Dumpers\JsonDumpGenerator.

setBatchCallback()

Wikibase\Repo\Dumpers\DumpGenerator::setBatchCallback

(

callable

$callback

)

Set a callback that is called once per batch, at the beginning of each batch.

setBatchSize()

Wikibase\Repo\Dumpers\DumpGenerator::setBatchSize

(

$batchSize

)

Sets the batch size for processing.

The batch size is used as the limit when listing IDs via the EntityIdPager::getNextBatchOfIds() method, and also controls the interval of progress reports.

Parameters

int

$batchSize

Exceptions

InvalidArgumentException

setEntityTypesFilter()

Wikibase\Repo\Dumpers\DumpGenerator::setEntityTypesFilter

(

$types

)

Set the entity types to be included in the output.

Parameters

string[] | null

$types

The desired types (use null for any type).

setExceptionHandler()

Wikibase\Repo\Dumpers\DumpGenerator::setExceptionHandler

(

ExceptionHandler

$exceptionHandler

)

setLimit()

Wikibase\Repo\Dumpers\DumpGenerator::setLimit

(

$limit

)

Set maximum number of entities produced.

Parameters

int

$limit

setProgressReporter()

Wikibase\Repo\Dumpers\DumpGenerator::setProgressReporter

(

MessageReporter

$progressReporter

)

setShardingFilter()

Wikibase\Repo\Dumpers\DumpGenerator::setShardingFilter	(		$shardingFactor,
			$shard )

Set the sharding factor and desired shard.

For instance, to generate four dumps in parallel, use setShardingFilter( 4, 0 ) for the first dump, setShardingFilter( 4, 1 ) for the second dump, etc.

Parameters

int	$shardingFactor
int	$shard

Exceptions

InvalidArgumentException

writeToDump()

Wikibase\Repo\Dumpers\DumpGenerator::writeToDump ( $data )

protected

Writers the given string to the output provided to the constructor.

Parameters

string

$data

Member Data Documentation

$batchCallback

Wikibase\Repo\Dumpers\DumpGenerator::$batchCallback

private

$batchSize

Wikibase\Repo\Dumpers\DumpGenerator::$batchSize = 100

protected

$entityPrefetcher

Wikibase\Repo\Dumpers\DumpGenerator::$entityPrefetcher

protected

$entityTypes

Wikibase\Repo\Dumpers\DumpGenerator::$entityTypes

protected

$exceptionHandler

Wikibase\Repo\Dumpers\DumpGenerator::$exceptionHandler

protected

$limit

Wikibase\Repo\Dumpers\DumpGenerator::$limit = 0

protected

$out

Wikibase\Repo\Dumpers\DumpGenerator::$out

protected

$progressReporter

Wikibase\Repo\Dumpers\DumpGenerator::$progressReporter

protected

$shard

Wikibase\Repo\Dumpers\DumpGenerator::$shard = 0

protected

$shardingFactor

Wikibase\Repo\Dumpers\DumpGenerator::$shardingFactor = 1

protected

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The documentation for this class was generated from the following file:

• repo/includes/Dumpers/DumpGenerator.php