Package io.mosip.kernel.core.util

Class JsonUtils

java.lang.Object

io.mosip.kernel.core.util.JsonUtils

public class JsonUtils
extends Object

This class contains methods used for operations on JSON type data

Since:

1.0.0

Author:

Sidhant Agarwal

Method Summary

Modifier and Type	Method	Description
static String	javaObjectToJsonString(Object className)	This function converts the java object and returns a JSON String
static List<Object>	jsonStringToJavaList(String jsonArray)	This method converts a JSON String containing multiple JSON and stores them in a java list
static Map<String,Object>	jsonStringToJavaMap(String jsonString)	This method converts a JSON String containing multiple JSON and stores them in a java Map
static Object	jsonStringToJavaObject(Class<?> className, String jsonString)	This method converts the JSON String input and maps it to the java object
static String	jsonToJacksonJson(String jsonString, String key)	This function returns the value associated with the label of the input JSON

Methods inherited from class java.lang.Object

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

Method Detail

javaObjectToJsonString

public static String javaObjectToJsonString(Object className)
                                     throws JsonProcessingException

This function converts the java object and returns a JSON String

Parameters:

className - object of the class to be converted to JSON File

Returns:

generated JSON String

Throws:

JsonProcessingException - when JSON is not properly processed

jsonStringToJavaObject

public static Object jsonStringToJavaObject(Class<?> className,
                                            String jsonString)
                                     throws JsonParseException,
                                            JsonMappingException,
                                            IOException

This method converts the JSON String input and maps it to the java object

Parameters:

className - class name to which the JSON String is to be mapped

jsonString - input JSON String(always in double quotes) (eg."{color=Black, type=FIAT}")

Returns:

class object with the JSON string parsed to object

Throws:

JsonParseException - when JSON is not properly parsed

JsonMappingException - when JSON is not properly mapped

IOException - when location is not found

jsonToJacksonJson

public static String jsonToJacksonJson(String jsonString,
                                       String key)
                                throws IOException

This function returns the value associated with the label of the input JSON

Parameters:

jsonString - input JSON String(always in double quotes) (eg."{color=Black, type=FIAT}")

key - label of the JSON String whose value is to be retrieved

Returns:

value of the corresponding key input

Throws:

IOException - when file is not found

jsonStringToJavaList

public static List<Object> jsonStringToJavaList(String jsonArray)
                                         throws JsonParseException,
                                                JsonMappingException,
                                                IOException

This method converts a JSON String containing multiple JSON and stores them in a java list

Parameters:

jsonArray - input String containing array of JSON string(always in double quotes) (eg."[{color=Black, type=BMW}, {color=Red, type=FIAT}]")

Returns:

list of JSON string

Throws:

JsonParseException - when JSON is not properly parsed

JsonMappingException - when JSON is not properly mapped

IOException - when file is not found

jsonStringToJavaMap

public static Map<String,Object> jsonStringToJavaMap(String jsonString)
                                                    throws JsonParseException,
                                                           JsonMappingException,
                                                           IOException

This method converts a JSON String containing multiple JSON and stores them in a java Map

Parameters:

jsonString - input String containing array of JSON string(always in double quotes) (eg."[{color=Black, type=BMW}, {color=Red, type=FIAT}]")

Returns:

java map containing JSON inputs

Throws:

JsonParseException - when JSON is not properly parsed

JsonMappingException - when JSON is not properly mapped

IOException - when file is not found