org.apache.slider.common.params

Class ArgOps

java.lang.Object

org.apache.slider.common.params.ArgOps

Direct Known Subclasses:

AbstractActionArgs, AbstractArgsDelegate, CommonArgs

public class ArgOps
extends Object

Static argument manipulation operations

Constructor Summary

Constructors

Constructor and Description
ArgOps()

Method Summary

Methods

Modifier and Type	Method and Description
static void	applyDefinitions(Map<String,String> definitionMap, org.apache.hadoop.conf.Configuration conf)
static void	applyFileSystemBinding(String filesystemBinding, org.apache.hadoop.conf.Configuration conf)
static Map<String,Map<String,String>>	convertTripleListToMaps(String description, List<String> list) Create a map from a tuple list like ['worker','heapsize','5G','master','heapsize','2M'] into a map ['worker':'2',"master":'1']; Duplicate entries also trigger errors
static Map<String,String>	convertTupleListToMap(String description, List<String> list) Create a map from a tuple list like ['worker','2','master','1] into a map ['worker':'2',"master":'1']; Duplicate entries also trigger errors
static void	splitPairs(Collection<String> pairs, Map<String,String> dest)
static List<Object>	triple(String msg, int min, int max) create a 3-tuple

Methods inherited from class java.lang.Object

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

Constructor Detail

ArgOps

public ArgOps()

Method Detail

triple

public static List<Object> triple(String msg,
                  int min,
                  int max)

create a 3-tuple

applyFileSystemBinding

public static void applyFileSystemBinding(String filesystemBinding,
                          org.apache.hadoop.conf.Configuration conf)

splitPairs

public static void splitPairs(Collection<String> pairs,
              Map<String,String> dest)

applyDefinitions

public static void applyDefinitions(Map<String,String> definitionMap,
                    org.apache.hadoop.conf.Configuration conf)

convertTupleListToMap

public static Map<String,String> convertTupleListToMap(String description,
                                       List<String> list)
                                                throws BadCommandArgumentsException

Create a map from a tuple list like ['worker','2','master','1] into a map ['worker':'2',"master":'1']; Duplicate entries also trigger errors

Parameters:

description - description for errors

list - list to conver to tuples

Returns:

the map of key value pairs -unordered.

Throws:

BadCommandArgumentsException - odd #of arguments received

convertTripleListToMaps

public static Map<String,Map<String,String>> convertTripleListToMaps(String description,
                                                     List<String> list)
                                                              throws BadCommandArgumentsException

Create a map from a tuple list like ['worker','heapsize','5G','master','heapsize','2M'] into a map ['worker':'2',"master":'1']; Duplicate entries also trigger errors

Throws:

BadCommandArgumentsException - odd #of arguments received