Class JsonLoader

java.lang.Object

gaiasky.data.AbstractSceneLoader

gaiasky.data.JsonLoader

All Implemented Interfaces:

ISceneLoader

public class JsonLoader
extends AbstractSceneLoader

Main JSON loader. Loads Gaia Sky dataset definition files written in JSON.

Field Summary

Fields inherited from class AbstractSceneLoader

datasetDirectory, dataSource, filePaths, index, loggedArchetypes, parentName, scene

Modifier and Type	Field	Description
protected String	datasetDirectory
protected uk.ac.starlink.util.DataSource	dataSource
protected String[]	filePaths
protected Map<String, com.badlogic.ashley.core.Entity>	index	Index reference, used to keep track of loaded objects names in case they need to be updated.
protected Set<String>	loggedArchetypes
protected String	parentName
protected Scene	scene

Constructor Summary

Constructors

Constructor	Description
JsonLoader()	Creates a new instance with an empty index.
JsonLoader(Map<String, com.badlogic.ashley.core.Entity> index)	Creates a new instance with the given index.

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	convertJsonToMap(com.badlogic.gdx.utils.JsonValue json)
int	depth(com.badlogic.gdx.utils.JsonValue attribute)
void	fillEntity(com.badlogic.gdx.utils.JsonValue json, com.badlogic.ashley.core.Entity entity, String className, boolean update)
String	findAttribute(String attributeName, String className)
com.badlogic.gdx.utils.Array<com.badlogic.ashley.core.Entity>	loadData()	Performs the loading and returns an array with the entities loaded.
void	processJson(com.badlogic.gdx.utils.JsonValue json, Functions.Function3<Class<?>, Object, com.badlogic.gdx.utils.JsonValue, Boolean> function)	Processes the given JSON tree, extracting and converting the class and value of each attribute, and runs the given function on it.
boolean	set(Object instance, String fieldName, Object fieldValue)
void	setDescription(String description)
void	setName(String name)
void	setParams(Map<String,Object> params)
Pair<Object,Class>	to1DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)
Pair<Object,Class>	to2DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)
Pair<Object,Class>	to3DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)
Pair<Object,Class>	toMultidimDoubleArray(com.badlogic.gdx.utils.JsonValue attribute)

Methods inherited from class AbstractSceneLoader

initialize, initialize, initialize, setIndex, setParentName

Modifier and Type	Method	Description
void	initialize(String[] files, Scene scene)
void	initialize(String[] files, String dsLocation, Scene scene)
void	initialize(uk.ac.starlink.util.DataSource dataSource, Scene scene)
void	setIndex(Map<String, com.badlogic.ashley.core.Entity> index)
void	setParentName(String parentName)

Methods inherited from class Object

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

Constructor Details

JsonLoader

public JsonLoader(Map<String, com.badlogic.ashley.core.Entity> index)

Creates a new instance with the given index.

JsonLoader

public JsonLoader()

Creates a new instance with an empty index.

Method Details

loadData

public com.badlogic.gdx.utils.Array<com.badlogic.ashley.core.Entity> loadData()
                                                                       throws FileNotFoundException

Description copied from interface: ISceneLoader

Performs the loading and returns an array with the entities loaded.

Returns:

The loaded entities.

Throws:

FileNotFoundException

processJson

public void processJson(com.badlogic.gdx.utils.JsonValue json,
 Functions.Function3<Class<?>, Object, com.badlogic.gdx.utils.JsonValue, Boolean> function)
                 throws com.badlogic.gdx.utils.reflect.ReflectionException

Processes the given JSON tree, extracting and converting the class and value of each attribute, and runs the given function on it.

Parameters:

json - The JSON object.

function - The function to run for each attribute. The parameters of the function are the value class, the value object and the JSON attribute. It returns a boolean.

Throws:

com.badlogic.gdx.utils.reflect.ReflectionException

fillEntity

public void fillEntity(com.badlogic.gdx.utils.JsonValue json,
 com.badlogic.ashley.core.Entity entity,
 String className,
 boolean update)
                throws com.badlogic.gdx.utils.reflect.ReflectionException

Throws:

com.badlogic.gdx.utils.reflect.ReflectionException

findAttribute

public String findAttribute(String attributeName,
 String className)

set

public boolean set(Object instance,
 String fieldName,
 Object fieldValue)
            throws IllegalStateException

Throws:

IllegalStateException

depth

public int depth(com.badlogic.gdx.utils.JsonValue attribute)

toMultidimDoubleArray

public Pair<Object,Class> toMultidimDoubleArray(com.badlogic.gdx.utils.JsonValue attribute)

to1DoubleArray

public Pair<Object,Class> to1DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)

to2DoubleArray

public Pair<Object,Class> to2DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)

to3DoubleArray

public Pair<Object,Class> to3DoubleArray(com.badlogic.gdx.utils.JsonValue attribute)

convertJsonToMap

public Map<String,Object> convertJsonToMap(com.badlogic.gdx.utils.JsonValue json)

setName

public void setName(String name)

setDescription

public void setDescription(String description)

setParams

public void setParams(Map<String,Object> params)