Package com.mapr.fs.tables

Class MapRAdmin

java.lang.Object

com.mapr.fs.tables.MapRAdmin

public class MapRAdmin
extends Object

Constructor Summary

Constructors

Constructor	Description
MapRAdmin(MapRFileSystem fs)

Method Summary

Modifier and Type	Method	Description
void	deleteColumnPermission(org.apache.hadoop.fs.Path table, String column, String permission)	Deletes a permission from a column family or qualifier.
void	deleteTablePermission(org.apache.hadoop.fs.Path table, String permission)	Removes a permission from the MapR table
com.mapr.fs.proto.Dbserver.ColumnFamilyAttr	getColumnFamily(org.apache.hadoop.fs.Path table, String cfName, boolean wantAce)
List<CFPermissions>	getFamilyPermissions(org.apache.hadoop.fs.Path table)	Returns the list of column family permission including those set on the qualifiers.
long	getNumRows(String tablePath)	Deprecated. Use maprdb client's MetaTable APIs
long	getNumRows(org.apache.hadoop.fs.Path tablePath)	Deprecated. Use maprdb client's MetaTable APIs
long	getNumRows(org.apache.hadoop.fs.Path tablePath, String indexFid)	Deprecated. Use maprdb client's MetaTable APIs
Collection<ExtIndexDesc>	getTableExternalIndexes(org.apache.hadoop.fs.Path tablePath, boolean refreshNow)	Returns a collection of index descriptors for the specified table.
Map<String,String>	getTablePermissions(org.apache.hadoop.fs.Path table)	Returns all ACEs set on the table as a Map.
void	setFamilyPermissions(org.apache.hadoop.fs.Path table, String family, CFPermissions cfPermissions)	Sets permissions on a column family.
void	setTablePermissions(org.apache.hadoop.fs.Path table, Map<String,String> permissions)	Sets the permissions ACEs on the MapR table.
void	split(org.apache.hadoop.fs.Path tablePath, String fid)	Split a tablet or all the tablets of a table.

Methods inherited from class java.lang.Object

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

Constructor Details

MapRAdmin

public MapRAdmin(MapRFileSystem fs)

Method Details

getFamilyPermissions

public List<CFPermissions> getFamilyPermissions(org.apache.hadoop.fs.Path table)
                                         throws IOException

Returns the list of column family permission including those set on the qualifiers. See also CFPermissions.

Parameters:

tablePath -

Returns:

Throws:

IOException

setFamilyPermissions

public void setFamilyPermissions(org.apache.hadoop.fs.Path table,
 String family,
 CFPermissions cfPermissions)
                          throws IOException

Sets permissions on a column family. See CFPermissions for details.

Parameters:

tablePath -

family -

cfPermissions -

Throws:

IOException

deleteColumnPermission

public void deleteColumnPermission(org.apache.hadoop.fs.Path table,
 String column,
 String permission)
                            throws IOException

Deletes a permission from a column family or qualifier.

Parameters:

tablePath -

column -

permission -

Throws:

IOException

getTablePermissions

public Map<String,String> getTablePermissions(org.apache.hadoop.fs.Path table)
                                       throws IOException

Returns all ACEs set on the table as a Map. Key of this map is the permission name while the value is the ACE for that permission.

Parameters:

tablePath -

Returns:

Throws:

IOException

setTablePermissions

public void setTablePermissions(org.apache.hadoop.fs.Path table,
 Map<String,String> permissions)
                         throws IOException

Sets the permissions ACEs on the MapR table.

Parameters:

tablePath -

permissions -

Throws:

IOException

deleteTablePermission

public void deleteTablePermission(org.apache.hadoop.fs.Path table,
 String permission)
                           throws IOException

Removes a permission from the MapR table

Parameters:

tablePath -

permission -

Throws:

IOException

split

public void split(org.apache.hadoop.fs.Path tablePath,
 String fid)
           throws IOException

Split a tablet or all the tablets of a table.

Parameters:

tableNameOrRegionName - String specifying either a table path with optional tablet FID separated by ",". If a tablet FID is not specified, all tablets of the table are split.

Throws:

IOException

getNumRows

public long getNumRows(String tablePath)
                throws IOException

Deprecated.

Use maprdb client's MetaTable APIs

Returns the estimated number of rows for a given table

Parameters:

tablePath - Path of the table

Returns:

Number of rows

Throws:

IOException

getNumRows

public long getNumRows(org.apache.hadoop.fs.Path tablePath)
                throws IOException

Deprecated.

Use maprdb client's MetaTable APIs

Returns the estimated number of rows for a given table as long

Parameters:

tablePath - Path of the table

Returns:

Number of rows

Throws:

IOException

getNumRows

public long getNumRows(org.apache.hadoop.fs.Path tablePath,
 String indexFid)
                throws IOException

Deprecated.

Use maprdb client's MetaTable APIs

Returns the estimated number of rows for a given primary or index table as a long value

Parameters:

tablePath - Path of the primary table

indexFid - FID of the index table, if null row count of the primary table is returned

Returns:

Estimated number of rows or primary or index table

Throws:

IOException

getColumnFamily

public com.mapr.fs.proto.Dbserver.ColumnFamilyAttr getColumnFamily(org.apache.hadoop.fs.Path table,
 String cfName,
 boolean wantAce)
                                                            throws IOException

Throws:

IOException

getTableExternalIndexes

public Collection<ExtIndexDesc> getTableExternalIndexes(org.apache.hadoop.fs.Path tablePath,
 boolean refreshNow)
                                                 throws IOException

Returns a collection of index descriptors for the specified table.

Throws:

IOException