Package com.linkedin.venice.router.api

Class VenicePartitionFinder

java.lang.Object

com.linkedin.venice.router.api.VenicePartitionFinder

All Implemented Interfaces:

PartitionFinder<RouterKey>

public class VenicePartitionFinder
extends Object
implements PartitionFinder<RouterKey>

VenicePartitionFinder provides methods to find the partition name or number for the given data.

Constructor Summary

Constructors

Constructor	Description
VenicePartitionFinder(RoutingDataRepository dataRepository, ReadOnlyStoreRepository metadataRepository)

Method Summary

Modifier and Type	Method	Description
VenicePartitioner	findPartitioner(String storeName, int versionNum)	Query the map to find the partitioner in need.
String	findPartitionName(String resourceName, RouterKey partitionKey)	Returns the name of partition for the given key within the given table.
int	findPartitionNumber(RouterKey partitionKey, int numPartitions, String storeName, int versionNumber)	Venice-specific API for finding the partition number without the added overhead of parsing a partition name.
List<String>	getAllPartitionNames(String resourceName)
int	getNumPartitions(String resourceName)	Returns the number of partitions for a given db

Methods inherited from class java.lang.Object

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

Constructor Details

VenicePartitionFinder

public VenicePartitionFinder(RoutingDataRepository dataRepository,
 ReadOnlyStoreRepository metadataRepository)

Method Details

findPartitionName

public String findPartitionName(String resourceName,
 RouterKey partitionKey)

Description copied from interface: PartitionFinder

Returns the name of partition for the given key within the given table.

Specified by:

findPartitionName in interface PartitionFinder<RouterKey>

Parameters:

resourceName -

partitionKey -

Returns:

partition Name, ex "store_v3_5"

findPartitionNumber

public int findPartitionNumber(RouterKey partitionKey,
 int numPartitions,
 String storeName,
 int versionNumber)

Description copied from interface: PartitionFinder

Venice-specific API for finding the partition number without the added overhead of parsing a partition name.

Specified by:

findPartitionNumber in interface PartitionFinder<RouterKey>

getAllPartitionNames

public List<String> getAllPartitionNames(String resourceName)

Specified by:

getAllPartitionNames in interface PartitionFinder<RouterKey>

getNumPartitions

public int getNumPartitions(String resourceName)

Description copied from interface: PartitionFinder

Returns the number of partitions for a given db

Specified by:

getNumPartitions in interface PartitionFinder<RouterKey>

Parameters:

resourceName - name of the database

findPartitioner

public VenicePartitioner findPartitioner(String storeName,
 int versionNum)

Query the map to find the partitioner in need. If miss, real search using store info happens in searchPartitioner(java.lang.String, int)