org.springframework.cloud.function.json

Class JsonMapper

java.lang.Object

org.springframework.cloud.function.json.JsonMapper

Direct Known Subclasses:

GsonMapper, JacksonMapper

public abstract class JsonMapper
extends Object

Author:

Dave Syer, Oleg Zhurakousky

Constructor Summary

Constructors

Constructor and Description
JsonMapper()

Method Summary

Modifier and Type	Method and Description
protected abstract <T> T	doFromJson(Object json, Type type)
<T> T	fromJson(Object json, Type type)
static boolean	isJsonString(Object value) Performs a simple validation on an object to see if it appears to be a JSON string.
static boolean	isJsonStringRepresentsCollection(Object value)
byte[]	toJson(Object value)
abstract String	toString(Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonMapper

public JsonMapper()

Method Detail

fromJson

public <T> T fromJson(Object json,
                      Type type)

doFromJson

protected abstract <T> T doFromJson(Object json,
                                    Type type)

toJson

public byte[] toJson(Object value)

toString

public abstract String toString(Object value)

isJsonString

public static boolean isJsonString(Object value)

Performs a simple validation on an object to see if it appears to be a JSON string. NOTE: the validation is very rudimentary and simply checks that the object is a String and begins and ends with matching pairs of "{}" or "[]" or "\"\"" and therefore may not handle some corner cases. Primarily intended for internal of the framework.

Parameters:

value - candidate object to evaluate

Returns:

true if and object appears to be a valid JSON string, otherwise false.

isJsonStringRepresentsCollection

public static boolean isJsonStringRepresentsCollection(Object value)