Package me.hsgamer.hscore.common

Class MapUtils

java.lang.Object

me.hsgamer.hscore.common.MapUtils

public class MapUtils
extends Object

Methods on Map

Method Summary

Modifier and Type	Method	Description
static Optional<Map<String,Object>>	castOptionalStringObjectMap(Object object)	Cast to the optional string-object map
static Optional<Map<String,Object>>	castOptionalStringObjectMap(Object object, boolean unsafe)	Cast to the optional string-object map
static <K> boolean	containsAnyKey(Map<K,?> map, K... key)	Check if the map contains any of the keys
static <K, V> V	getIfFound(Map<K,V> map, K... key)	Get the value given the key from the map
static <K, V> V	getIfFoundOrDefault(Map<K,V> map, V defaultValue, K... key)	Get the value given the key from the map
static <K, V> Optional<V>	getOptional(Map<K,V> map, K... key)	Get the value given the key from the map

Methods inherited from class java.lang.Object

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

Method Details

getIfFoundOrDefault

@SafeVarargs
public static <K,
V> V getIfFoundOrDefault(Map<K,V> map,
 V defaultValue,
 K... key)

Get the value given the key from the map

Type Parameters:

K - the key type

V - the value type

Parameters:

map - the map

defaultValue - the default value

key - the key

Returns:

the value

getIfFound

@SafeVarargs
public static <K,
V> V getIfFound(Map<K,V> map,
 K... key)

Get the value given the key from the map

Type Parameters:

K - the key type

V - the value type

Parameters:

map - the map

key - the key

Returns:

the value, or null if not found

getOptional

@SafeVarargs
public static <K,
V> Optional<V> getOptional(Map<K,V> map,
 K... key)

Get the value given the key from the map

Type Parameters:

K - the key type

V - the value type

Parameters:

map - the map

key - the key

Returns:

the value, or empty optional if not found

containsAnyKey

@SafeVarargs
public static <K> boolean containsAnyKey(Map<K,?> map,
 K... key)

Check if the map contains any of the keys

Type Parameters:

K - the key type

Parameters:

map - the map

key - the key

Returns:

true if it does

castOptionalStringObjectMap

public static Optional<Map<String,Object>> castOptionalStringObjectMap(Object object,
 boolean unsafe)

Cast to the optional string-object map

Parameters:

object - the object

unsafe - whether to cast unsafe. Set to false if you want to ensure the map is string-object map, but it will be slower.

Returns:

the map, or empty optional if it's not a map

castOptionalStringObjectMap

public static Optional<Map<String,Object>> castOptionalStringObjectMap(Object object)

Cast to the optional string-object map

Parameters:

object - the object

Returns:

the map