de.iip_ecosphere.platform.support.iip_aas.json

Class JsonResultWrapper

java.lang.Object

de.iip_ecosphere.platform.support.iip_aas.json.JsonResultWrapper

All Implemented Interfaces:

Serializable, Function<Object[],Object>

public class JsonResultWrapper
extends Object
implements Function<Object[],Object>, Serializable

Uniform way to represent results of AAS operations that may fail.

Author:

Holger Eichelberger, SSE

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	JsonResultWrapper.ExceptionFunction A function that may throw an exception.
static class	JsonResultWrapper.Result Represents the result w/o exception.

Field Summary

Fields

Modifier and Type	Field and Description
private JsonResultWrapper.ExceptionFunction	func
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
JsonResultWrapper(JsonResultWrapper.ExceptionFunction func) Creates a wrapper object.

Method Summary

Modifier and Type	Method and Description
Object	apply(Object[] param)
static String	fromJson(Object json) Turns something in JSON into a result via an instance of Result.
static JsonResultWrapper.Result	resultFromJson(Object json) Turns something in JSON into a Result.
static String	toJson(JsonResultWrapper.Result res) Turns a JsonResultWrapper.Result into JSON.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

func

private JsonResultWrapper.ExceptionFunction func

Constructor Detail

JsonResultWrapper

public JsonResultWrapper(JsonResultWrapper.ExceptionFunction func)

Creates a wrapper object.

Parameters:

func - a function that may throw an exception.

Method Detail

apply

public Object apply(Object[] param)

Specified by:

apply in interface Function<Object[],Object>

toJson

public static String toJson(JsonResultWrapper.Result res)

Turns a JsonResultWrapper.Result into JSON.

Parameters:

res - the result instance (may be null)

Returns:

the JSON string or an empty string in case of problems/no address

resultFromJson

public static JsonResultWrapper.Result resultFromJson(Object json)

Turns something in JSON into a Result.

Parameters:

json - the JSON value, usually a String

Returns:

the result instance

fromJson

public static String fromJson(Object json)
                       throws ExecutionException

Turns something in JSON into a result via an instance of Result.

Parameters:

json - the JSON value, usually a String

Returns:

the result value, may be null, e.g., if json is null

Throws:

ExecutionException - if the parsed JsonResultWrapper.Result represents an exception