org.apache.hadoop.hbase.util
Class ConfigurationUtil

java.lang.Object
  org.apache.hadoop.hbase.util.ConfigurationUtil

@InterfaceAudience.Public
@InterfaceStability.Evolving
public final class ConfigurationUtil
extends Object

Utilities for storing more complex collection types in Configuration instances.

Field Summary

static char

KVP_DELIMITER

Method Summary

static List<Map.Entry<String,String>>	getKeyValues(org.apache.hadoop.conf.Configuration conf, String key) Retrieve a list of key value pairs from configuration, stored under the provided key
static List<Map.Entry<String,String>>	getKeyValues(org.apache.hadoop.conf.Configuration conf, String key, char delimiter) Retrieve a list of key value pairs from configuration, stored under the provided key
static void	setKeyValues(org.apache.hadoop.conf.Configuration conf, String key, Collection<Map.Entry<String,String>> keyValues) Store a collection of Map.Entry's in conf, with each entry separated by ',' and key values delimited by KVP_DELIMITER
static void	setKeyValues(org.apache.hadoop.conf.Configuration conf, String key, Collection<Map.Entry<String,String>> keyValues, char delimiter) Store a collection of Map.Entry's in conf, with each entry separated by ',' and key values delimited by delimiter.

Methods inherited from class java.lang.Object

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

Field Detail

KVP_DELIMITER

public static final char KVP_DELIMITER

See Also:

Constant Field Values

Method Detail

setKeyValues

public static void setKeyValues(org.apache.hadoop.conf.Configuration conf,
                                String key,
                                Collection<Map.Entry<String,String>> keyValues)

Store a collection of Map.Entry's in conf, with each entry separated by ',' and key values delimited by KVP_DELIMITER

Parameters:

conf - configuration to store the collection in

key - overall key to store keyValues under

keyValues - kvps to be stored under key in conf

setKeyValues

public static void setKeyValues(org.apache.hadoop.conf.Configuration conf,
                                String key,
                                Collection<Map.Entry<String,String>> keyValues,
                                char delimiter)

Store a collection of Map.Entry's in conf, with each entry separated by ',' and key values delimited by delimiter.

Parameters:

conf - configuration to store the collection in

key - overall key to store keyValues under

keyValues - kvps to be stored under key in conf

delimiter - character used to separate each kvp

getKeyValues

public static List<Map.Entry<String,String>> getKeyValues(org.apache.hadoop.conf.Configuration conf,
                                                          String key)

Retrieve a list of key value pairs from configuration, stored under the provided key

Parameters:

conf - configuration to retrieve kvps from

key - key under which the key values are stored

Returns:

the list of kvps stored under key in conf, or null if the key isn't present.

See Also:

setKeyValues(Configuration, String, Collection, char)

getKeyValues

public static List<Map.Entry<String,String>> getKeyValues(org.apache.hadoop.conf.Configuration conf,
                                                          String key,
                                                          char delimiter)

Retrieve a list of key value pairs from configuration, stored under the provided key

Parameters:

conf - configuration to retrieve kvps from

key - key under which the key values are stored

delimiter - character used to separate each kvp

Returns:

the list of kvps stored under key in conf, or null if the key isn't present.

See Also:

setKeyValues(Configuration, String, Collection, char)