net.obvj.jep.util

Class JsonUtils

java.lang.Object

net.obvj.jep.util.JsonUtils

public class JsonUtils
extends Object

Utility methods for working with JSON and JSONPath

Author:

oswaldo.bapvic.jr

Method Summary

Modifier and Type	Method and Description
static com.jayway.jsonpath.JsonPath	compileJsonPath(String jsonPath) Compiles the given JSONPath.
static List<Object>	convertJSONArrayToList(org.codehaus.jettison.json.JSONArray jsonArray) Converts a JSONArray into a Java-standard List
static org.codehaus.jettison.json.JSONArray	convertToJSONArray(Object inputObject) Converts an Object to JSONArray
static org.codehaus.jettison.json.JSONObject	convertToJSONObject(Object inputObject) Converts an Object to JSONObject
static boolean	isEmpty(Object object)
static Object	readJsonPath(org.codehaus.jettison.json.JSONObject json, String jsonPath) Gets a value that matches the given JSONPath.
static Object	readJsonPath(org.codehaus.jettison.json.JSONObject json, String jsonPath, boolean extractSingleElement) Gets a value that matches the given JSONPath.

Methods inherited from class java.lang.Object

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

Method Detail

isEmpty

public static boolean isEmpty(Object object)

Parameters:

object - the Object to be validated

Returns:

true if the Object is null or empty

compileJsonPath

public static com.jayway.jsonpath.JsonPath compileJsonPath(String jsonPath)

Compiles the given JSONPath.

Parameters:

jsonPath - the JSONPath to be validated

Returns:

a JsonPath object

readJsonPath

public static Object readJsonPath(org.codehaus.jettison.json.JSONObject json,
                                  String jsonPath)

Gets a value that matches the given JSONPath.

Parameters:

json - a JSON object input data

jsonPath - the JSONPath to be evaluated

Returns:

The value that matches the given JSONPath string or null if no match was found. If the JSON is empty or null, the same object will be returned.

readJsonPath

public static Object readJsonPath(org.codehaus.jettison.json.JSONObject json,
                                  String jsonPath,
                                  boolean extractSingleElement)

Gets a value that matches the given JSONPath.

Parameters:

jsonPath - the JSONPath to be validated

json - a JSON object input data

extractSingleElement - a flag indicating whether the method should return the single value of a JSONArray instead of the array itself, provided that the length of the returnable array is equal to one.

Returns:

The evaluation results the given jsonpath over the json object;

convertToJSONObject

public static org.codehaus.jettison.json.JSONObject convertToJSONObject(Object inputObject)
                                                                 throws org.codehaus.jettison.json.JSONException

Converts an Object to JSONObject

Parameters:

inputObject - the object to be converted

Returns:

the object converted in JSONObject

Throws:

org.codehaus.jettison.json.JSONException - in case of errors converting into JSONObject

convertToJSONArray

public static org.codehaus.jettison.json.JSONArray convertToJSONArray(Object inputObject)
                                                               throws org.codehaus.jettison.json.JSONException

Converts an Object to JSONArray

Parameters:

inputObject - the object to be converted

Returns:

the object converted in JSONArray

Throws:

org.codehaus.jettison.json.JSONException - in case of errors converting into JSONArray

convertJSONArrayToList

public static List<Object> convertJSONArrayToList(org.codehaus.jettison.json.JSONArray jsonArray)

Converts a JSONArray into a Java-standard List

Parameters:

jsonArray - the JSONArray object to be converted

Returns:

the list converted from a JSONArray object