io.toro.martini.util

Class MapUtils

java.lang.Object

org.apache.commons.collections.MapUtils

io.toro.martini.util.MapUtils

public class MapUtils
extends org.apache.commons.collections.MapUtils

Field Summary

Fields inherited from class org.apache.commons.collections.MapUtils

EMPTY_MAP, EMPTY_SORTED_MAP

Constructor Summary

Constructors

Constructor and Description
MapUtils()

Method Summary

Modifier and Type	Method and Description
static <K,V> void	addToMultiValueMap(K key, V value, Map<K,List<V>> map)
static <V,R extends Map<String,V>> R	filterMapKey(R map, String... regex) Filter Map keys through regular expression(s).
static <V,R extends Map<String,V>> R	filterMapKeyStartWithIgnoreCase(R map, String... searchStrings) Filter map keys such that each key starts with at least one of the items in the searchStrings array.
static <K,V> Map.Entry<K,V>	getFirstEntry(Map<K,V> map)
static <K> K	getFirstKey(Map<K,?> map)
static <V> V	getFirstValue(Map<?,V> map)
static <K,V> Map<K,V>	mapWithKeysAndValue(Object... objects)
static <K,V> Map<K,List<V>>	mapWithKeysAndValueList(Object... objects)
static <K,V> V	removeFirst(MultiValueMap<K,V> map, K key)
static <K,V> Map<K,V>	sortMapValues(Map<K,V> map, Comparator<Map.Entry<K,V>> comparator)
static String	toString(Map map)

Methods inherited from class org.apache.commons.collections.MapUtils

debugPrint, fixedSizeMap, fixedSizeSortedMap, getBoolean, getBoolean, getBooleanValue, getBooleanValue, getByte, getByte, getByteValue, getByteValue, getDouble, getDouble, getDoubleValue, getDoubleValue, getFloat, getFloat, getFloatValue, getFloatValue, getInteger, getInteger, getIntValue, getIntValue, getLong, getLong, getLongValue, getLongValue, getMap, getMap, getNumber, getNumber, getObject, getObject, getShort, getShort, getShortValue, getShortValue, getString, getString, invertMap, isEmpty, isNotEmpty, lazyMap, lazyMap, lazySortedMap, lazySortedMap, logInfo, multiValueMap, multiValueMap, multiValueMap, orderedMap, predicatedMap, predicatedSortedMap, putAll, safeAddToMap, synchronizedMap, synchronizedSortedMap, toMap, toProperties, transformedMap, transformedSortedMap, typedMap, typedSortedMap, unmodifiableMap, unmodifiableSortedMap, verbosePrint

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

addToMultiValueMap

public static <K,V> void addToMultiValueMap(K key,
                                            V value,
                                            Map<K,List<V>> map)

getFirstEntry

public static <K,V> Map.Entry<K,V> getFirstEntry(Map<K,V> map)

getFirstKey

public static <K> K getFirstKey(Map<K,?> map)

getFirstValue

public static <V> V getFirstValue(Map<?,V> map)

sortMapValues

public static <K,V> Map<K,V> sortMapValues(Map<K,V> map,
                                           Comparator<Map.Entry<K,V>> comparator)

toString

public static String toString(Map map)

filterMapKey

public static <V,R extends Map<String,V>> R filterMapKey(R map,
                                                         String... regex)

Filter Map keys through regular expression(s). Given a certain key, if String.matches(String) returns true for at least one of the given regular expressions, that key will be retained. In the event that there are no regular expressions to match, the map will retain all of its keys.

Parameters:

map - the map to filter

regex - the regular expression(s) to match the keys to

Returns:

the filtered map

filterMapKeyStartWithIgnoreCase

public static <V,R extends Map<String,V>> R filterMapKeyStartWithIgnoreCase(R map,
                                                                            String... searchStrings)

Filter map keys such that each key starts with at least one of the items in the searchStrings array.

Parameters:

map - the map to filter

searchStrings - the must-have prefixes of the keys

Returns:

the filtered map

mapWithKeysAndValue

public static <K,V> Map<K,V> mapWithKeysAndValue(Object... objects)

mapWithKeysAndValueList

public static <K,V> Map<K,List<V>> mapWithKeysAndValueList(Object... objects)

removeFirst

public static <K,V> V removeFirst(MultiValueMap<K,V> map,
                                  K key)