Package xyz.janboerman.scalaloader.util

Class ScalaLoaderUtils

java.lang.Object

xyz.janboerman.scalaloader.util.ScalaLoaderUtils

public class ScalaLoaderUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <P extends IScalaPlugin> P	createScalaPluginInstance(Class<P> clazz)	Tries to get the plugin instance from the scala plugin class.
static void	downloadFile(URL inputResourceLocation, File outputFile)
static <ScalaLoader extends JavaPlugin & IScalaLoader> void	initBStats(ScalaLoader scalaLoader)
static <ScalaLoader extends JavaPlugin & IScalaLoader> void	initConfiguration(ScalaLoader scalaLoader)
static <Super, Type extends Super> Type	instantiate(Class<Type> clazz)	Tries to obtain an instance of the given class either by using an `object`'s singleton instance, or by calling the public no-args consturctor.
static ScalaLibraryClassLoader	loadOrGetScalaVersion(Map<String,ScalaLibraryClassLoader> scalaLibraryClassLoaders, PluginScalaVersion scalaVersion, boolean download, IScalaLoader scalaLoader)	Get a (fresh or cached) ScalaLibraryClassLoader that loads standard library classes from a specific Scala version.

Methods inherited from class java.lang.Object

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

Method Details

initConfiguration

public static <ScalaLoader extends JavaPlugin & IScalaLoader>
void initConfiguration(ScalaLoader scalaLoader)

initBStats

public static <ScalaLoader extends JavaPlugin & IScalaLoader>
void initBStats(ScalaLoader scalaLoader)

instantiate

public static <Super,
Type extends Super> Type instantiate(Class<Type> clazz)
                                                    throws IllegalAccessException,
InvocationTargetException,
NoSuchMethodException,
InstantiationException

Tries to obtain an instance of the given class either by using an `object`'s singleton instance, or by calling the public no-args consturctor.

Parameters:

clazz - the class for which to create an instance

Returns:

the instance

Throws:

IllegalAccessException

InvocationTargetException

NoSuchMethodException

InstantiationException

createScalaPluginInstance

public static <P extends IScalaPlugin> P createScalaPluginInstance(Class<P> clazz)
                                                            throws ScalaPluginLoaderException

Tries to get the plugin instance from the scala plugin class. This method is able to get the static instances from scala `object`s, as well as it is able to create plugins using their public NoArgsConstructors.

Type Parameters:

P - the plugin type

Parameters:

clazz - the plugin class

Returns:

the plugin's instance.

Throws:

ScalaPluginLoaderException - when a plugin instance could not be created for the given class

downloadFile

public static void downloadFile(URL inputResourceLocation,
 File outputFile)
                         throws IOException

Throws:

IOException

loadOrGetScalaVersion

public static ScalaLibraryClassLoader loadOrGetScalaVersion(Map<String,ScalaLibraryClassLoader> scalaLibraryClassLoaders,
 PluginScalaVersion scalaVersion,
 boolean download,
 IScalaLoader scalaLoader)
                                                     throws ScalaPluginLoaderException

Get a (fresh or cached) ScalaLibraryClassLoader that loads standard library classes from a specific Scala version. The classloader can either load classes from over the network directly, or use downloaded library archives (jar files).

Parameters:

scalaVersion - the scala version

Returns:

the class loader

Throws:

ScalaPluginLoaderException - if a url is malformed.