Package org.aksw.qa.commons.load.json

Class ExtendedQALDJSONLoader

java.lang.Object

org.aksw.qa.commons.load.json.ExtendedQALDJSONLoader

public final class ExtendedQALDJSONLoader
extends Object

Basic json load and store class using jackson.

Field Summary

Fields

Modifier and Type	Field	Description
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ExtendedQALDJSONLoader()	Make this class non instatiable.

Method Summary

Modifier and Type	Method	Description
static Object	readJson(byte[] inputJson, Class<?> type)	Parses Json file and returns an Object containing the results.
static Object	readJson(File f)
static Object	readJson(File f, Class<?> type)
static Object	readJson(InputStream in)
static Object	readJson(InputStream in, Class<?> type)	Parses Json file and returns an Object containing the results.
static byte[]	writeJson(Object json)	Writes the json to an byte array
static void	writeJson(Object o, File f, boolean overwrite)	Loads and saves Settings into and from json files /** Writes the given Object as JSON to location specified in File.

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static org.slf4j.Logger LOGGER

Constructor Details

ExtendedQALDJSONLoader

private ExtendedQALDJSONLoader()

Make this class non instatiable.

Method Details

writeJson

public static void writeJson(Object o,
 File f,
 boolean overwrite)
                      throws IOException

Loads and saves Settings into and from json files /** Writes the given Object as JSON to location specified in File. If File already exists and overwrite ==false, AttemptedOverwriteException will be thrown

Parameters:

o - The object you want to write.

f - The File (-location) to save it in.

overwrite - Set this true to overwrite existing file.

Throws:

IOException

writeJson

public static byte[] writeJson(Object json)
                        throws com.fasterxml.jackson.core.JsonProcessingException

Writes the json to an byte array

Parameters:

json -

Returns:

the given json as byte representation

Throws:

com.fasterxml.jackson.core.JsonProcessingException

readJson

public static Object readJson(byte[] inputJson,
 Class<?> type)
                       throws com.fasterxml.jackson.core.JsonParseException,
com.fasterxml.jackson.databind.JsonMappingException,
IOException

Parses Json file and returns an Object containing the results. You need to cast the return of this class to the class specified in type.

Parameters:

inputJson - the json to parse

type - The class type you want to read.

Returns:

An Object you should cast.

Throws:

IOException

com.fasterxml.jackson.databind.JsonMappingException

com.fasterxml.jackson.core.JsonParseException

readJson

public static Object readJson(InputStream in,
 Class<?> type)
                       throws com.fasterxml.jackson.core.JsonParseException,
com.fasterxml.jackson.databind.JsonMappingException,
IOException

Parses Json file and returns an Object containing the results. You need to cast the return of this class to the class specified in type.

Parameters:

f - The file location you want to read from.

type - The class type you want to read.

Returns:

An Object you should cast.

Throws:

IOException

com.fasterxml.jackson.databind.JsonMappingException

com.fasterxml.jackson.core.JsonParseException

readJson

public static Object readJson(InputStream in)
                       throws com.fasterxml.jackson.core.JsonParseException,
com.fasterxml.jackson.databind.JsonMappingException,
IOException

Throws:

com.fasterxml.jackson.core.JsonParseException

com.fasterxml.jackson.databind.JsonMappingException

IOException

readJson

public static Object readJson(File f)
                       throws FileNotFoundException,
IOException

Throws:

FileNotFoundException

IOException

readJson

public static Object readJson(File f,
 Class<?> type)
                       throws com.fasterxml.jackson.core.JsonParseException,
com.fasterxml.jackson.databind.JsonMappingException,
FileNotFoundException,
IOException

Throws:

com.fasterxml.jackson.core.JsonParseException

com.fasterxml.jackson.databind.JsonMappingException

FileNotFoundException

IOException