Package org.apache.hadoop.hbase.util

Class ClientUtils

java.lang.Object

org.apache.hadoop.hbase.util.ClientUtils

@Private
public final class ClientUtils
extends Object

Common Utility class for clients

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ClientUtils()

Method Summary

Modifier and Type	Method	Description
static LoginContext	getLoginContext()	To authenticate the demo client, kinit should be invoked ahead.
static void	printRow(org.apache.hadoop.hbase.thrift.generated.TRowResult rowResult)	copy values into a TreeMap to get them in sorted order and print it
static String	utf8(byte[] buf)	Helper to translate byte[]s to UTF8 strings
static String	utf8(ByteBuffer bb)	Helper to translate a byte buffer to UTF8 strings

Methods inherited from class java.lang.Object

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

Constructor Details

ClientUtils

private ClientUtils()

Method Details

getLoginContext

public static LoginContext getLoginContext()
                                    throws LoginException

To authenticate the demo client, kinit should be invoked ahead. Here we try to get the Kerberos credential from the ticket cache

Returns:

LoginContext Object

Throws:

LoginException - Exception thrown if unable to get LoginContext

printRow

public static void printRow(org.apache.hadoop.hbase.thrift.generated.TRowResult rowResult)

copy values into a TreeMap to get them in sorted order and print it

Parameters:

rowResult - Holds row name and then a map of columns to cells

utf8

public static String utf8(byte[] buf)

Helper to translate byte[]s to UTF8 strings

Parameters:

buf - byte array

Returns:

UTF8 decoded string value

utf8

public static String utf8(ByteBuffer bb)

Helper to translate a byte buffer to UTF8 strings

Parameters:

bb - byte buffer

Returns:

UTF8 decoded string value