com.facebook.presto.hive

Class HiveLocationService

java.lang.Object

com.facebook.presto.hive.HiveLocationService

All Implemented Interfaces:

LocationService

public class HiveLocationService
extends Object
implements LocationService

Constructor Summary

Constructors

Constructor and Description
HiveLocationService(HdfsEnvironment hdfsEnvironment)

Method Summary

Modifier and Type	Method and Description
LocationHandle	forExistingTable(SemiTransactionalHiveMetastore metastore, ConnectorSession session, Table table)
LocationHandle	forNewTable(SemiTransactionalHiveMetastore metastore, ConnectorSession session, String schemaName, String tableName)
org.apache.hadoop.fs.Path	targetPath(LocationHandle locationHandle, Optional<String> partitionName) Target path for the specified new partition (or unpartitioned table).
org.apache.hadoop.fs.Path	targetPath(LocationHandle locationHandle, Partition partition, String partitionName) Target path for the specified existing partition.
org.apache.hadoop.fs.Path	targetPathRoot(LocationHandle locationHandle) Root directory of all paths that may be returned by targetPath.
Optional<org.apache.hadoop.fs.Path>	writePath(LocationHandle locationHandle, Optional<String> partitionName) Temporary path for writing to the specified partition (or unpartitioned table).
Optional<org.apache.hadoop.fs.Path>	writePathRoot(LocationHandle locationHandle) Root directory of all paths that may be returned by writePath.

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveLocationService

@Inject
public HiveLocationService(HdfsEnvironment hdfsEnvironment)

Method Detail

forNewTable

public LocationHandle forNewTable(SemiTransactionalHiveMetastore metastore,
                                  ConnectorSession session,
                                  String schemaName,
                                  String tableName)

Specified by:

forNewTable in interface LocationService

forExistingTable

public LocationHandle forExistingTable(SemiTransactionalHiveMetastore metastore,
                                       ConnectorSession session,
                                       Table table)

Specified by:

forExistingTable in interface LocationService

targetPath

public org.apache.hadoop.fs.Path targetPath(LocationHandle locationHandle,
                                            Partition partition,
                                            String partitionName)

Description copied from interface: LocationService

Target path for the specified existing partition.

Specified by:

targetPath in interface LocationService

targetPath

public org.apache.hadoop.fs.Path targetPath(LocationHandle locationHandle,
                                            Optional<String> partitionName)

Description copied from interface: LocationService

Target path for the specified new partition (or unpartitioned table).

Specified by:

targetPath in interface LocationService

targetPathRoot

public org.apache.hadoop.fs.Path targetPathRoot(LocationHandle locationHandle)

Description copied from interface: LocationService

Root directory of all paths that may be returned by targetPath.

Specified by:

targetPathRoot in interface LocationService

writePath

public Optional<org.apache.hadoop.fs.Path> writePath(LocationHandle locationHandle,
                                                     Optional<String> partitionName)

Description copied from interface: LocationService

Temporary path for writing to the specified partition (or unpartitioned table).

When temporary path is not to be used, this function may return an empty Optional or a path same as the one returned from targetPath. When it is empty, special cleanups need to be carried out. Otherwise, it is not necessary.

A non-empty write path is required for new tables. However, it may be the same as targetPath.

Specified by:

writePath in interface LocationService

writePathRoot

public Optional<org.apache.hadoop.fs.Path> writePathRoot(LocationHandle locationHandle)

Description copied from interface: LocationService

Root directory of all paths that may be returned by writePath.

Specified by:

writePathRoot in interface LocationService