Package lumis.util

Class JsonUtil

java.lang.Object

lumis.util.JsonUtil

public class JsonUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
JsonUtil()

Method Summary

Modifier and Type	Method	Description
static <T> T	getJSONInnerObject(org.json.JSONObject obj, String propertyName, boolean isRequired, Class<T> desiredClass)	Returns an inner object of the given JSON as an instance of the given desired class.
static <T> List<T>	getListValues(org.json.JSONObject object, String key)	Returns a List from .
static <K,T> List<T>	getListValues(org.json.JSONObject object, String key, java.util.function.Function<K,T> parserItem)	Returns a List from .
static boolean	hasValue(org.json.JSONObject obj, String key)	Returns whether the given JSON object has a value for the given key.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonUtil

public JsonUtil()

Method Detail

getJSONInnerObject

public static <T> T getJSONInnerObject(org.json.JSONObject obj,
                                       String propertyName,
                                       boolean isRequired,
                                       Class<T> desiredClass)

Returns an inner object of the given JSON as an instance of the given desired class.

Parameters:

obj - the JSON object to get inner object.

propertyName - the property name.

isRequired - indicates whether the object is required.

desiredClass - the object desired class to be returned.

Returns:

an inner object of the given JSON as an instance of the given desired class.

Since:

11.0.0

getListValues

public static <T> List<T> getListValues(org.json.JSONObject object,
                                        String key)

Returns a List from . always stores a JSONArray instead List. So, this method create a new List, puts all items from JSONArray and returns.

Parameters:

object - the JSON owner.

key - the key property of list.

Returns:

a List from .

Since:

12.0.0

getListValues

public static <K,T> List<T> getListValues(org.json.JSONObject object,
                                                String key,
                                                java.util.function.Function<K,T> parserItem)

Returns a List from . always stores a JSONArray instead List. So, this method create a new List, puts all items from JSONArray and returns.

Parameters:

object - the JSON owner.

key - the key property of list.

parserItem - the parser to transformer each item before add to List.

Returns:

a List from .

Since:

12.0.0

hasValue

public static boolean hasValue(org.json.JSONObject obj,
                               String key)

Returns whether the given JSON object has a value for the given key.

Parameters:

obj - the object

key - the desired key

Returns:

whether the given JSON object has a value for the given key.

Since:

12.0.0