Package org.apache.accumulo.core.util.tables

Class TableZooHelper

java.lang.Object

org.apache.accumulo.core.util.tables.TableZooHelper

All Implemented Interfaces:

AutoCloseable

public class TableZooHelper
extends Object
implements AutoCloseable

Constructor Summary

Constructors

Constructor	Description
TableZooHelper(ClientContext context)

Method Summary

Modifier and Type	Method	Description
TableId	_getTableIdDetectNamespaceNotFound(String tableName)	Lookup table ID in ZK.
void	clearTableListCache()
void	close()
NamespaceId	getNamespaceId(TableId tableId)	Returns the namespace id for a given table ID.
String	getPrintableTableInfoFromId(TableId tableId)
String	getPrintableTableInfoFromName(String tableName)
TableId	getTableId(String tableName)	Lookup table ID in ZK.
TableMap	getTableMap()	Get the TableMap from the cache.
String	getTableName(TableId tableId)
TableState	getTableState(TableId tableId, boolean clearCachedState)	Get the current state of the table using the tableid.
boolean	tableNodeExists(TableId tableId)

Methods inherited from class java.lang.Object

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

Constructor Detail

TableZooHelper

public TableZooHelper(ClientContext context)

Method Detail

getTableId

public TableId getTableId(String tableName)
                   throws TableNotFoundException

Lookup table ID in ZK.

Throws:

TableNotFoundException - if not found; if the namespace was not found, this has a getCause() of NamespaceNotFoundException

_getTableIdDetectNamespaceNotFound

public TableId _getTableIdDetectNamespaceNotFound(String tableName)
                                           throws NamespaceNotFoundException,
                                                  TableNotFoundException

Lookup table ID in ZK. If not found, clears cache and tries again.

Throws:

NamespaceNotFoundException

TableNotFoundException

getTableName

public String getTableName(TableId tableId)
                    throws TableNotFoundException

Throws:

TableNotFoundException

getTableMap

public TableMap getTableMap()

Get the TableMap from the cache. A new one will be populated when needed. Cache is cleared manually by calling clearTableListCache()

tableNodeExists

public boolean tableNodeExists(TableId tableId)

clearTableListCache

public void clearTableListCache()

getPrintableTableInfoFromId

public String getPrintableTableInfoFromId(TableId tableId)

getPrintableTableInfoFromName

public String getPrintableTableInfoFromName(String tableName)

getTableState

public TableState getTableState(TableId tableId,
                                boolean clearCachedState)

Get the current state of the table using the tableid. The boolean clearCache, if true will clear the table state in zookeeper before fetching the state. Added with ACCUMULO-4574.

Parameters:

tableId - the table id

clearCachedState - if true clear the table state in zookeeper before checking status

Returns:

the table state.

getNamespaceId

public NamespaceId getNamespaceId(TableId tableId)
                           throws TableNotFoundException

Returns the namespace id for a given table ID.

Parameters:

tableId - The tableId

Returns:

The namespace id which this table resides in.

Throws:

IllegalArgumentException - if the table doesn't exist in ZooKeeper

TableNotFoundException

close

public void close()

Specified by:

close in interface AutoCloseable