Package org.apache.commons.exec.util

Class MapUtils

java.lang.Object

org.apache.commons.exec.util.MapUtils

public class MapUtils
extends 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.

Constructor Summary

Constructors

Constructor	Description
MapUtils()

Method Summary

Modifier and Type	Method	Description
static <K, V> Map<K,V>	copy(Map<K,V> source)	Clones a map.
static <K, V> Map<K,V>	merge(Map<K,V> lhs, Map<K,V> rhs)	Clones the lhs map and add all things from the rhs map.
static <K, V> Map<String,V>	prefix(Map<K,V> source, 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 Details

MapUtils

public MapUtils()

Method Details

copy

public static <K,
V> Map<K,V> copy(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.

merge

public static <K,
V> Map<K,V> merge(Map<K,V> lhs,
 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.

prefix

public static <K,
V> Map<String,V> prefix(Map<K,V> source,
 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 behavior 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.