Package org.bukkit.plugin.java

Class JavaPlugin

java.lang.Object

org.bukkit.plugin.PluginBase

org.bukkit.plugin.java.JavaPlugin

All Implemented Interfaces:

CommandExecutor, TabCompleter, TabExecutor, Plugin

public abstract class JavaPlugin
extends PluginBase

Represents a Java plugin and its main class. It contains fundamental methods and fields for a plugin to be loaded and work properly. This is an indirect implementation of Plugin.

Constructor Summary

Constructors

Modifier	Constructor	Description
	JavaPlugin()
protected	JavaPlugin(JavaPluginLoader loader, PluginDescriptionFile description, File dataFolder, File file)

Method Summary

Modifier and Type	Method	Description
protected final ClassLoader	getClassLoader()	Returns the ClassLoader which holds this plugin
PluginCommand	getCommand(String name)	Gets the command with the given name, specific to this plugin.
FileConfiguration	getConfig()	Gets a FileConfiguration for this plugin, read through "config.yml"
final File	getDataFolder()	Returns the folder that the plugin data's files are located in.
BiomeProvider	getDefaultBiomeProvider(String worldName, String id)	Gets a BiomeProvider for use in a default world, as specified in the server configuration
ChunkGenerator	getDefaultWorldGenerator(String worldName, String id)	Gets a ChunkGenerator for use in a default world, as specified in the server configuration
final PluginDescriptionFile	getDescription()	Returns the plugin.yaml file containing the details for this plugin
protected File	getFile()	Returns the file which contains this plugin
Logger	getLogger()	Returns the plugin logger associated with this server's logger.
static <T extends JavaPlugin> T	getPlugin(Class<T> clazz)	This method provides fast access to the plugin that has provided the given plugin class, which is usually the plugin that implemented it.
final PluginLoader	getPluginLoader()	Gets the associated PluginLoader responsible for this plugin
static JavaPlugin	getProvidingPlugin(Class<?> clazz)	This method provides fast access to the plugin that has provided the given class.
InputStream	getResource(String filename)	Gets an embedded resource in this plugin
final Server	getServer()	Returns the Server instance currently running this plugin
protected final Reader	getTextResource(String file)	Provides a reader for a text file located inside the jar.
final boolean	isEnabled()	Returns a value indicating whether or not this plugin is currently enabled
final boolean	isNaggable()	Simple boolean if we can still nag to the logs about things
boolean	onCommand(CommandSender sender, Command command, String label, String[] args)	Executes the given command, returning its success.
void	onDisable()	Called when this plugin is disabled
void	onEnable()	Called when this plugin is enabled
void	onLoad()	Called after a plugin is loaded but before it has been enabled.
List<String>	onTabComplete(CommandSender sender, Command command, String alias, String[] args)	Requests a list of possible completions for a command argument.
void	reloadConfig()	Discards any data in Plugin.getConfig() and reloads from disk.
void	saveConfig()	Saves the FileConfiguration retrievable by Plugin.getConfig().
void	saveDefaultConfig()	Saves the raw contents of the default config.yml file to the location retrievable by Plugin.getConfig().
void	saveResource(String resourcePath, boolean replace)	Saves the raw contents of any resource embedded with a plugin's .jar file assuming it can be found using Plugin.getResource(String).
protected final void	setEnabled(boolean enabled)	Sets the enabled state of this plugin
final void	setNaggable(boolean canNag)	Set naggable state
String	toString()

Methods inherited from class org.bukkit.plugin.PluginBase

equals, getName, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

JavaPlugin

public JavaPlugin()

JavaPlugin

protected JavaPlugin(@NotNull
 JavaPluginLoader loader,
 @NotNull
 PluginDescriptionFile description,
 @NotNull
 File dataFolder,
 @NotNull
 File file)

Method Details

getDataFolder

@NotNull
public final File getDataFolder()

Returns the folder that the plugin data's files are located in. The folder may not yet exist.

Returns:

The folder.

getPluginLoader

@NotNull
public final PluginLoader getPluginLoader()

Gets the associated PluginLoader responsible for this plugin

Returns:

PluginLoader that controls this plugin

getServer

@NotNull
public final Server getServer()

Returns the Server instance currently running this plugin

Returns:

Server running this plugin

isEnabled

public final boolean isEnabled()

Returns a value indicating whether or not this plugin is currently enabled

Returns:

true if this plugin is enabled, otherwise false

getFile

@NotNull
protected File getFile()

Returns the file which contains this plugin

Returns:

File containing this plugin

getDescription

@NotNull
public final PluginDescriptionFile getDescription()

Returns the plugin.yaml file containing the details for this plugin

Returns:

Contents of the plugin.yaml file

getConfig

@NotNull
public FileConfiguration getConfig()

Description copied from interface: Plugin

Gets a FileConfiguration for this plugin, read through "config.yml"

If there is a default config.yml embedded in this plugin, it will be provided as a default for this Configuration.

Returns:

Plugin configuration

getTextResource

@Nullable
protected final Reader getTextResource(@NotNull
 String file)

Provides a reader for a text file located inside the jar.

The returned reader will read text with the UTF-8 charset.

Parameters:

file - the filename of the resource to load

Returns:

null if getResource(String) returns null

Throws:

IllegalArgumentException - if file is null

See Also:

• ClassLoader.getResourceAsStream(String)

reloadConfig

public void reloadConfig()

Description copied from interface: Plugin

Discards any data in Plugin.getConfig() and reloads from disk.

saveConfig

public void saveConfig()

Description copied from interface: Plugin

Saves the FileConfiguration retrievable by Plugin.getConfig().

saveDefaultConfig

public void saveDefaultConfig()

Description copied from interface: Plugin

Saves the raw contents of the default config.yml file to the location retrievable by Plugin.getConfig().

This should fail silently if the config.yml already exists.

saveResource

public void saveResource(@NotNull
 String resourcePath,
 boolean replace)

Description copied from interface: Plugin

Saves the raw contents of any resource embedded with a plugin's .jar file assuming it can be found using Plugin.getResource(String).

The resource is saved into the plugin's data folder using the same hierarchy as the .jar file (subdirectories are preserved).

Parameters:

resourcePath - the embedded resource path to look for within the plugin's .jar file. (No preceding slash).

replace - if true, the embedded resource will overwrite the contents of an existing file.

getResource

@Nullable
public InputStream getResource(@NotNull
 String filename)

Description copied from interface: Plugin

Gets an embedded resource in this plugin

Parameters:

filename - Filename of the resource

Returns:

File if found, otherwise null

getClassLoader

@NotNull
protected final ClassLoader getClassLoader()

Returns the ClassLoader which holds this plugin

Returns:

ClassLoader holding this plugin

setEnabled

protected final void setEnabled(boolean enabled)

Sets the enabled state of this plugin

Parameters:

enabled - true if enabled, otherwise false

onCommand

public boolean onCommand(@NotNull
 CommandSender sender,
 @NotNull
 Command command,
 @NotNull
 String label,
 @NotNull
 String[] args)

Executes the given command, returning its success.
If false is returned, then the "usage" plugin.yml entry for this command (if defined) will be sent to the player.

Parameters:

sender - Source of the command

command - Command which was executed

label - Alias of the command which was used

args - Passed command arguments

Returns:

true if a valid command, otherwise false

onTabComplete

@Nullable
public List<String> onTabComplete(@NotNull
 CommandSender sender,
 @NotNull
 Command command,
 @NotNull
 String alias,
 @NotNull
 String[] args)

Requests a list of possible completions for a command argument.

Parameters:

sender - Source of the command. For players tab-completing a command inside of a command block, this will be the player, not the command block.

command - Command which was executed

alias - Alias of the command which was used

args - The arguments passed to the command, including final partial argument to be completed

Returns:

A List of possible completions for the final argument, or null to default to the command executor

getCommand

@Nullable
public PluginCommand getCommand(@NotNull
 String name)

Gets the command with the given name, specific to this plugin. Commands need to be registered in the PluginDescriptionFile to exist at runtime.

Parameters:

name - name or alias of the command

Returns:

the plugin command if found, otherwise null

onLoad

public void onLoad()

Description copied from interface: Plugin

Called after a plugin is loaded but before it has been enabled.

When multiple plugins are loaded, the onLoad() for all plugins is called before any onEnable() is called.

onDisable

public void onDisable()

Description copied from interface: Plugin

Called when this plugin is disabled

onEnable

public void onEnable()

Description copied from interface: Plugin

Called when this plugin is enabled

getDefaultWorldGenerator

@Nullable
public ChunkGenerator getDefaultWorldGenerator(@NotNull
 String worldName,
 @Nullable
 String id)

Description copied from interface: Plugin

Gets a ChunkGenerator for use in a default world, as specified in the server configuration

Parameters:

worldName - Name of the world that this will be applied to

id - Unique ID, if any, that was specified to indicate which generator was requested

Returns:

ChunkGenerator for use in the default world generation

getDefaultBiomeProvider

@Nullable
public BiomeProvider getDefaultBiomeProvider(@NotNull
 String worldName,
 @Nullable
 String id)

Description copied from interface: Plugin

Gets a BiomeProvider for use in a default world, as specified in the server configuration

Parameters:

worldName - Name of the world that this will be applied to

id - Unique ID, if any, that was specified to indicate which biome provider was requested

Returns:

BiomeProvider for use in the default world generation

isNaggable

public final boolean isNaggable()

Description copied from interface: Plugin

Simple boolean if we can still nag to the logs about things

Returns:

boolean whether we can nag

setNaggable

public final void setNaggable(boolean canNag)

Description copied from interface: Plugin

Set naggable state

Parameters:

canNag - is this plugin still naggable?

getLogger

@NotNull
public Logger getLogger()

Description copied from interface: Plugin

Returns the plugin logger associated with this server's logger. The returned logger automatically tags all log messages with the plugin's name.

Returns:

Logger associated with this plugin

toString

@NotNull
public String toString()

Overrides:

toString in class Object

getPlugin

@NotNull
public static <T extends JavaPlugin> T getPlugin(@NotNull
 Class<T> clazz)

This method provides fast access to the plugin that has provided the given plugin class, which is usually the plugin that implemented it.

An exception to this would be if plugin's jar that contained the class does not extend the class, where the intended plugin would have resided in a different jar / classloader.

Type Parameters:

T - a class that extends JavaPlugin

Parameters:

clazz - the class desired

Returns:

the plugin that provides and implements said class

Throws:

IllegalArgumentException - if clazz is null

IllegalArgumentException - if clazz does not extend JavaPlugin

IllegalStateException - if clazz was not provided by a plugin, for example, if called with JavaPlugin.getPlugin(JavaPlugin.class)

IllegalStateException - if called from the static initializer for given JavaPlugin

ClassCastException - if plugin that provided the class does not extend the class

getProvidingPlugin

@NotNull
public static JavaPlugin getProvidingPlugin(@NotNull
 Class<?> clazz)

This method provides fast access to the plugin that has provided the given class.

Parameters:

clazz - a class belonging to a plugin

Returns:

the plugin that provided the class

Throws:

IllegalArgumentException - if the class is not provided by a JavaPlugin

IllegalArgumentException - if class is null

IllegalStateException - if called from the static initializer for given JavaPlugin