Package org.apache.commons.exec.util

Class MapUtils

java.lang.Object

org.apache.commons.exec.util.MapUtils

public class MapUtils
extends java.lang.Object

Helper classes to manipulate maps to pass substition map to the CommandLine. This class is not part of the public API and could change without warning.

Version:

$Id: MapUtils.java 1636205 2014-11-02 22:32:33Z ggregory $

Constructor Summary

Constructors

Constructor	Description
MapUtils()

Method Summary

Modifier and Type	Method	Description
static <K,V> java.util.Map<K,V>	copy(java.util.Map<K,V> source)	Clones a map.
static <K,V> java.util.Map<K,V>	merge(java.util.Map<K,V> lhs, java.util.Map<K,V> rhs)	Clones the lhs map and add all things from the rhs map.
static <K,V> java.util.Map<java.lang.String,V>	prefix(java.util.Map<K,V> source, java.lang.String prefix)	Clones a map and prefixes the keys in the clone, e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapUtils

public MapUtils()

Method Detail

copy

public static <K,V> java.util.Map<K,V> copy(java.util.Map<K,V> source)

Clones a map.

Type Parameters:

K - the map key type

V - the map value type

Parameters:

source - the Map to clone

Returns:

the cloned map

prefix

public static <K,V> java.util.Map<java.lang.String,V> prefix(java.util.Map<K,V> source,
                                                             java.lang.String prefix)

Clones a map and prefixes the keys in the clone, e.g. for mapping "JAVA_HOME" to "env.JAVA_HOME" to simulate the behaviour of Ant.

Type Parameters:

K - the map key type

V - the map value type

Parameters:

source - the source map

prefix - the prefix used for all names

Returns:

the clone of the source map

merge

public static <K,V> java.util.Map<K,V> merge(java.util.Map<K,V> lhs,
                                             java.util.Map<K,V> rhs)

Clones the lhs map and add all things from the rhs map.

Type Parameters:

K - the map key type

V - the map value type

Parameters:

lhs - the first map

rhs - the second map

Returns:

the merged map