org.apache.hadoop.fs.swift.util

Class JSONUtil

java.lang.Object

org.apache.hadoop.fs.swift.util.JSONUtil

public class JSONUtil
extends Object

Method Summary

Modifier and Type	Method and Description
static com.fasterxml.jackson.databind.ObjectMapper	getJsonMapper()
static String	toJSON(Object object) Converting object to JSON string.
static <T> T	toObject(String value, Class<T> klazz) Convert string representation to object.
static <T> T	toObject(String value, com.fasterxml.jackson.databind.type.CollectionType collectionType)
static <T> T	toObject(String value, com.fasterxml.jackson.core.type.TypeReference<T> typeReference)

Methods inherited from class java.lang.Object

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

Method Detail

toJSON

public static String toJSON(Object object)
                     throws IOException

Converting object to JSON string. If errors appears throw MeshinException runtime exception.

Parameters:

object - The object to convert.

Returns:

The JSON string representation.

Throws:

IOException - IO issues

SwiftJsonMarshallingException - failure to generate JSON

toObject

public static <T> T toObject(String value,
                             Class<T> klazz)
                      throws IOException

Convert string representation to object. If errors appears throw Exception runtime exception.

Parameters:

value - The JSON string.

klazz - The class to convert.

Returns:

The Object of the given class.

Throws:

IOException

toObject

public static <T> T toObject(String value,
                             com.fasterxml.jackson.core.type.TypeReference<T> typeReference)
                      throws IOException

Type Parameters:

T - type

Parameters:

value - json string

typeReference - class type reference

Returns:

deserialized T object

Throws:

IOException

toObject

public static <T> T toObject(String value,
                             com.fasterxml.jackson.databind.type.CollectionType collectionType)
                      throws IOException

Type Parameters:

T - type

Parameters:

value - json string

collectionType - class describing how to deserialize collection of objects

Returns:

deserialized T object

Throws:

IOException

getJsonMapper

public static com.fasterxml.jackson.databind.ObjectMapper getJsonMapper()