Package org.apache.drill.exec.store.hive.client

Class DrillHiveMetaStoreClient

java.lang.Object

org.apache.hadoop.hive.metastore.HiveMetaStoreClient

org.apache.drill.exec.store.hive.client.DrillHiveMetaStoreClient

All Implemented Interfaces:

AutoCloseable, org.apache.hadoop.hive.metastore.IMetaStoreClient

public class DrillHiveMetaStoreClient
extends org.apache.hadoop.hive.metastore.HiveMetaStoreClient

Extension of HiveMetaStoreClient with addition of cache and methods useful for Drill schema. Note, that access to parent class is synchronized either on cache loading level or in overridden methods, and the synchronization should not be neglected in child classes.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.metastore.HiveMetaStoreClient

org.apache.hadoop.hive.metastore.HiveMetaStoreClient.MetastoreMapIterable<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface org.apache.hadoop.hive.metastore.IMetaStoreClient

org.apache.hadoop.hive.metastore.IMetaStoreClient.IncompatibleMetastoreException, org.apache.hadoop.hive.metastore.IMetaStoreClient.NotificationFilter

Field Summary

Fields inherited from class org.apache.hadoop.hive.metastore.HiveMetaStoreClient

conf, LOG, TEST_VERSION, VERSION

Method Summary

Modifier and Type	Method	Description
List<String>	getDatabases(boolean ignoreAuthzErrors)	Lists all Hive database names.
String	getDelegationToken(String owner, String renewerKerberosPrincipalName)	Overridden to enforce synchronization.
HiveReadEntry	getHiveReadEntry(String dbName, String tableName, boolean ignoreAuthzErrors)	Returns table metadata for concrete table
Map<String,org.apache.calcite.schema.Schema.TableType>	getTableNamesAndTypes(String dbName, boolean ignoreAuthzErrors)	Returns collection of view and table names along with their types.

Methods inherited from class org.apache.hadoop.hive.metastore.HiveMetaStoreClient

abortTxns, add_partition, add_partition, add_partitions, add_partitions, add_partitions_pspec, addCheckConstraint, addDefaultConstraint, addDynamicPartitions, addDynamicPartitions, addForeignKey, addMasterKey, addNotNullConstraint, addPrimaryKey, addRuntimeStat, addSchemaVersion, addSerDe, addToken, addUniqueConstraint, allocateTableWriteId, allocateTableWriteIdsBatch, alter_partition, alter_partition, alter_partition, alter_partitions, alter_partitions, alter_partitions, alter_table, alter_table, alter_table, alter_table_with_environmentContext, alterCatalog, alterDatabase, alterDatabase, alterFunction, alterFunction, alterISchema, alterResourcePlan, alterWMPool, alterWMTrigger, appendPartition, appendPartition, appendPartition, appendPartition, appendPartition, appendPartitionByName, appendPartitionByName, cacheFileMetadata, cancelDelegationToken, checkLock, clearFileMetadata, close, commitTxn, compact, compact, compact2, create_role, create_table_with_environment_context, createCatalog, createDatabase, createFunction, createISchema, createOrDropTriggerToPoolMapping, createOrUpdateWMMapping, createResourcePlan, createTable, createTable, createTableWithConstraints, createType, createWMPool, createWMTrigger, deepCopy, deepCopy, deepCopy, deepCopyFieldSchemas, deletePartitionColumnStatistics, deletePartitionColumnStatistics, deleteTableColumnStatistics, deleteTableColumnStatistics, drop_role, drop_table_with_environment_context, dropCatalog, dropConstraint, dropConstraint, dropDatabase, dropDatabase, dropDatabase, dropDatabase, dropFunction, dropFunction, dropISchema, dropPartition, dropPartition, dropPartition, dropPartition, dropPartition, dropPartition, dropPartition, dropPartition, dropPartition, dropPartitionByName, dropPartitionByName, dropPartitions, dropPartitions, dropPartitions, dropPartitions, dropResourcePlan, dropSchemaVersion, dropTable, dropTable, dropTable, dropTable, dropTable, dropType, dropWMMapping, dropWMPool, dropWMTrigger, exchange_partition, exchange_partition, exchange_partitions, exchange_partitions, fireListenerEvent, flushCache, get_principals_in_role, get_privilege_set, get_role_grants_for_principal, getActiveResourcePlan, getAggrColStatsFor, getAggrColStatsFor, getAllDatabases, getAllDatabases, getAllFunctions, getAllResourcePlans, getAllTables, getAllTables, getAllTokenIdentifiers, getCatalog, getCatalogs, getCheckConstraints, getConfigValue, getCurrentNotificationEventId, getDatabase, getDatabase, getDatabases, getDatabases, getDefaultConstraints, getDelegationToken, getFields, getFields, getFileMetadata, getFileMetadataBySarg, getForeignKeys, getFunction, getFunction, getFunctions, getFunctions, getISchema, getMasterKeys, getMaterializationInvalidationInfo, getMaterializedViewsForRewriting, getMaterializedViewsForRewriting, getMetaConf, getMetastoreDbUuid, getNextNotification, getNotificationEventsCount, getNotNullConstraints, getNumPartitionsByFilter, getNumPartitionsByFilter, getPartition, getPartition, getPartition, getPartition, getPartitionColumnStatistics, getPartitionColumnStatistics, getPartitionsByNames, getPartitionsByNames, getPartitionWithAuthInfo, getPartitionWithAuthInfo, getPrimaryKeys, getResourcePlan, getRuntimeStats, getSchema, getSchema, getSchemaAllVersions, getSchemaByCols, getSchemaLatestVersion, getSchemaVersion, getSerDe, getTable, getTable, getTableColumnStatistics, getTableColumnStatistics, getTableMeta, getTableMeta, getTableObjectsByName, getTableObjectsByName, getTables, getTables, getTables, getTables, getToken, getTokenStrForm, getTriggersForResourcePlan, getTTransport, getType, getTypeAll, getUniqueConstraints, getValidTxns, getValidTxns, getValidWriteIds, getValidWriteIds, grant_privileges, grant_role, heartbeat, heartbeatLockMaterializationRebuild, heartbeatTxnRange, insertTable, isCompatibleWith, isLocalMetaStore, isPartitionMarkedForEvent, isPartitionMarkedForEvent, isSameConfObj, list_privileges, list_roles, listPartitionNames, listPartitionNames, listPartitionNames, listPartitionNames, listPartitions, listPartitions, listPartitions, listPartitions, listPartitionsByExpr, listPartitionsByExpr, listPartitionsByFilter, listPartitionsByFilter, listPartitionSpecs, listPartitionSpecs, listPartitionSpecsByFilter, listPartitionSpecsByFilter, listPartitionsWithAuthInfo, listPartitionsWithAuthInfo, listPartitionsWithAuthInfo, listPartitionsWithAuthInfo, listPartitionValues, listRoleNames, listTableNamesByFilter, listTableNamesByFilter, lock, lockMaterializationRebuild, mapSchemaVersionToSerde, markPartitionForEvent, markPartitionForEvent, newSynchronizedClient, openTxn, openTxns, partitionNameToSpec, partitionNameToVals, putFileMetadata, reconnect, recycleDirToCmPath, refresh_privileges, removeMasterKey, removeToken, renamePartition, renamePartition, renewDelegationToken, replAllocateTableWriteIdsBatch, replCommitTxn, replOpenTxn, replRollbackTxn, replTableWriteIdState, revoke_privileges, revoke_role, rollbackTxn, setHiveAddedJars, setMetaConf, setPartitionColumnStatistics, setSchemaVersionState, showCompactions, showLocks, showLocks, showTxns, tableExists, tableExists, truncateTable, truncateTable, unlock, updateCreationMetadata, updateCreationMetadata, updateMasterKey, updatePartitionColumnStatistics, updateTableColumnStatistics, validatePartitionNameCharacters, validateResourcePlan

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.metastore.IMetaStoreClient

alter_partition, alter_partitions, alter_table, dropDatabase, dropDatabase, dropPartitions, dropPartitions, dropTable, dropTable

Method Details

getDatabases

public List<String> getDatabases(boolean ignoreAuthzErrors)
                          throws org.apache.thrift.TException

Lists all Hive database names.

Parameters:

ignoreAuthzErrors - whether authorization errors should be ignored

Returns:

list of Hive databases

Throws:

org.apache.thrift.TException - when client fails

getHiveReadEntry

public HiveReadEntry getHiveReadEntry(String dbName,
 String tableName,
 boolean ignoreAuthzErrors)
                               throws org.apache.thrift.TException

Returns table metadata for concrete table

Parameters:

dbName - name of database

tableName - name of table

Returns:

HiveReadEntry containing table meta like columns, partitions etc.

Throws:

org.apache.thrift.TException - when client fails

getTableNamesAndTypes

public Map<String,org.apache.calcite.schema.Schema.TableType> getTableNamesAndTypes(String dbName,
 boolean ignoreAuthzErrors)
                                                                             throws org.apache.thrift.TException

Returns collection of view and table names along with their types.

Parameters:

dbName - name of database

ignoreAuthzErrors - hint for handling authorization errors

Returns:

map where keys are db object names values are types (VIEW or TABLE)

Throws:

org.apache.thrift.TException - in case when if loader thrown ExecutionException

getDelegationToken

public String getDelegationToken(String owner,
 String renewerKerberosPrincipalName)
                          throws org.apache.thrift.TException

Overridden to enforce synchronization.

Specified by:

getDelegationToken in interface org.apache.hadoop.hive.metastore.IMetaStoreClient

Overrides:

getDelegationToken in class org.apache.hadoop.hive.metastore.HiveMetaStoreClient

Parameters:

owner - the intended owner for the token

renewerKerberosPrincipalName - kerberos user

Returns:

the string of the token

Throws:

org.apache.thrift.TException - when client fails