Package org.bukkit.plugin.messaging

Interface Messenger

All Known Implementing Classes:

StandardMessenger

public interface Messenger

A class responsible for managing the registrations of plugin channels and their listeners. Channel names must contain a colon separator and consist of only [a-z0-9/._-] - i.e. they MUST be valid NamespacedKey. The "BungeeCord" channel is an exception and may only take this form.

Field Summary

Fields

Modifier and Type	Field	Description
static int	MAX_CHANNEL_SIZE	Represents the largest size that a Plugin Channel may be.
static int	MAX_MESSAGE_SIZE	Represents the largest size that an individual Plugin Message may be.

Method Summary

Modifier and Type	Method	Description
void	dispatchIncomingMessage(@NotNull Player source, @NotNull String channel, @org.jetbrains.annotations.NotNull byte[] message)	Dispatches the specified incoming message to any registered listeners.
@NotNull Set<PluginMessageListenerRegistration>	getIncomingChannelRegistrations(@NotNull String channel)	Gets a set containing all the incoming plugin channel registrations that are on the requested channel.
@NotNull Set<PluginMessageListenerRegistration>	getIncomingChannelRegistrations(@NotNull Plugin plugin)	Gets a set containing all the incoming plugin channel registrations that the specified plugin has.
@NotNull Set<PluginMessageListenerRegistration>	getIncomingChannelRegistrations(@NotNull Plugin plugin, @NotNull String channel)	Gets a set containing all the incoming plugin channel registrations that the specified plugin has on the requested channel.
@NotNull Set<String>	getIncomingChannels()	Gets a set containing all the incoming plugin channels.
@NotNull Set<String>	getIncomingChannels(@NotNull Plugin plugin)	Gets a set containing all the incoming plugin channels that the specified plugin is registered for.
@NotNull Set<String>	getOutgoingChannels()	Gets a set containing all the outgoing plugin channels.
@NotNull Set<String>	getOutgoingChannels(@NotNull Plugin plugin)	Gets a set containing all the outgoing plugin channels that the specified plugin is registered to.
boolean	isIncomingChannelRegistered(@NotNull Plugin plugin, @NotNull String channel)	Checks if the specified plugin has registered to receive incoming messages through the requested channel.
boolean	isOutgoingChannelRegistered(@NotNull Plugin plugin, @NotNull String channel)	Checks if the specified plugin has registered to send outgoing messages through the requested channel.
boolean	isRegistrationValid(@NotNull PluginMessageListenerRegistration registration)	Checks if the specified plugin message listener registration is valid.
boolean	isReservedChannel(@NotNull String channel)	Checks if the specified channel is a reserved name.
@NotNull PluginMessageListenerRegistration	registerIncomingPluginChannel(@NotNull Plugin plugin, @NotNull String channel, @NotNull PluginMessageListener listener)	Registers the specific plugin for listening on the requested incoming plugin channel, allowing it to act upon any plugin messages.
void	registerOutgoingPluginChannel(@NotNull Plugin plugin, @NotNull String channel)	Registers the specific plugin to the requested outgoing plugin channel, allowing it to send messages through that channel to any clients.
void	unregisterIncomingPluginChannel(@NotNull Plugin plugin)	Unregisters the specific plugin from listening on all plugin channels through all listeners.
void	unregisterIncomingPluginChannel(@NotNull Plugin plugin, @NotNull String channel)	Unregisters the specific plugin from listening on the requested incoming plugin channel, no longer allowing it to act upon any plugin messages.
void	unregisterIncomingPluginChannel(@NotNull Plugin plugin, @NotNull String channel, @NotNull PluginMessageListener listener)	Unregisters the specific plugin's listener from listening on the requested incoming plugin channel, no longer allowing it to act upon any plugin messages.
void	unregisterOutgoingPluginChannel(@NotNull Plugin plugin)	Unregisters the specific plugin from all outgoing plugin channels, no longer allowing it to send any plugin messages.
void	unregisterOutgoingPluginChannel(@NotNull Plugin plugin, @NotNull String channel)	Unregisters the specific plugin from the requested outgoing plugin channel, no longer allowing it to send messages through that channel to any clients.

Field Detail

MAX_MESSAGE_SIZE

static final int MAX_MESSAGE_SIZE

Represents the largest size that an individual Plugin Message may be.

See Also:

Constant Field Values

MAX_CHANNEL_SIZE

static final int MAX_CHANNEL_SIZE

Represents the largest size that a Plugin Channel may be.

See Also:

Constant Field Values

Method Detail

isReservedChannel

boolean isReservedChannel(@NotNull
                          @NotNull String channel)

Checks if the specified channel is a reserved name.
All channels within the "minecraft" namespace except for "minecraft:brand" are reserved.

Parameters:

channel - Channel name to check.

Returns:

True if the channel is reserved, otherwise false.

Throws:

IllegalArgumentException - Thrown if channel is null.

registerOutgoingPluginChannel

void registerOutgoingPluginChannel(@NotNull
                                   @NotNull Plugin plugin,
                                   @NotNull
                                   @NotNull String channel)

Registers the specific plugin to the requested outgoing plugin channel, allowing it to send messages through that channel to any clients.

Parameters:

plugin - Plugin that wishes to send messages through the channel.

channel - Channel to register.

Throws:

IllegalArgumentException - Thrown if plugin or channel is null.

unregisterOutgoingPluginChannel

void unregisterOutgoingPluginChannel(@NotNull
                                     @NotNull Plugin plugin,
                                     @NotNull
                                     @NotNull String channel)

Unregisters the specific plugin from the requested outgoing plugin channel, no longer allowing it to send messages through that channel to any clients.

Parameters:

plugin - Plugin that no longer wishes to send messages through the channel.

channel - Channel to unregister.

Throws:

IllegalArgumentException - Thrown if plugin or channel is null.

unregisterOutgoingPluginChannel

void unregisterOutgoingPluginChannel(@NotNull
                                     @NotNull Plugin plugin)

Unregisters the specific plugin from all outgoing plugin channels, no longer allowing it to send any plugin messages.

Parameters:

plugin - Plugin that no longer wishes to send plugin messages.

Throws:

IllegalArgumentException - Thrown if plugin is null.

registerIncomingPluginChannel

@NotNull
@NotNull PluginMessageListenerRegistration registerIncomingPluginChannel(@NotNull
                                                                         @NotNull Plugin plugin,
                                                                         @NotNull
                                                                         @NotNull String channel,
                                                                         @NotNull
                                                                         @NotNull PluginMessageListener listener)

Registers the specific plugin for listening on the requested incoming plugin channel, allowing it to act upon any plugin messages.

Parameters:

plugin - Plugin that wishes to register to this channel.

channel - Channel to register.

listener - Listener to receive messages on.

Returns:

The resulting registration that was made as a result of this method.

Throws:

IllegalArgumentException - Thrown if plugin, channel or listener is null, or the listener is already registered for this channel.

unregisterIncomingPluginChannel

void unregisterIncomingPluginChannel(@NotNull
                                     @NotNull Plugin plugin,
                                     @NotNull
                                     @NotNull String channel,
                                     @NotNull
                                     @NotNull PluginMessageListener listener)

Unregisters the specific plugin's listener from listening on the requested incoming plugin channel, no longer allowing it to act upon any plugin messages.

Parameters:

plugin - Plugin that wishes to unregister from this channel.

channel - Channel to unregister.

listener - Listener to stop receiving messages on.

Throws:

IllegalArgumentException - Thrown if plugin, channel or listener is null.

unregisterIncomingPluginChannel

void unregisterIncomingPluginChannel(@NotNull
                                     @NotNull Plugin plugin,
                                     @NotNull
                                     @NotNull String channel)

Unregisters the specific plugin from listening on the requested incoming plugin channel, no longer allowing it to act upon any plugin messages.

Parameters:

plugin - Plugin that wishes to unregister from this channel.

channel - Channel to unregister.

Throws:

IllegalArgumentException - Thrown if plugin or channel is null.

unregisterIncomingPluginChannel

void unregisterIncomingPluginChannel(@NotNull
                                     @NotNull Plugin plugin)

Unregisters the specific plugin from listening on all plugin channels through all listeners.

Parameters:

plugin - Plugin that wishes to unregister from this channel.

Throws:

IllegalArgumentException - Thrown if plugin is null.

getOutgoingChannels

@NotNull
@NotNull Set<String> getOutgoingChannels()

Gets a set containing all the outgoing plugin channels.

Returns:

List of all registered outgoing plugin channels.

getOutgoingChannels

@NotNull
@NotNull Set<String> getOutgoingChannels(@NotNull
                                         @NotNull Plugin plugin)

Gets a set containing all the outgoing plugin channels that the specified plugin is registered to.

Parameters:

plugin - Plugin to retrieve channels for.

Returns:

List of all registered outgoing plugin channels that a plugin is registered to.

Throws:

IllegalArgumentException - Thrown if plugin is null.

getIncomingChannels

@NotNull
@NotNull Set<String> getIncomingChannels()

Gets a set containing all the incoming plugin channels.

Returns:

List of all registered incoming plugin channels.

getIncomingChannels

@NotNull
@NotNull Set<String> getIncomingChannels(@NotNull
                                         @NotNull Plugin plugin)

Gets a set containing all the incoming plugin channels that the specified plugin is registered for.

Parameters:

plugin - Plugin to retrieve channels for.

Returns:

List of all registered incoming plugin channels that the plugin is registered for.

Throws:

IllegalArgumentException - Thrown if plugin is null.

getIncomingChannelRegistrations

@NotNull
@NotNull Set<PluginMessageListenerRegistration> getIncomingChannelRegistrations(@NotNull
                                                                                @NotNull Plugin plugin)

Gets a set containing all the incoming plugin channel registrations that the specified plugin has.

Parameters:

plugin - Plugin to retrieve registrations for.

Returns:

List of all registrations that the plugin has.

Throws:

IllegalArgumentException - Thrown if plugin is null.

getIncomingChannelRegistrations

@NotNull
@NotNull Set<PluginMessageListenerRegistration> getIncomingChannelRegistrations(@NotNull
                                                                                @NotNull String channel)

Gets a set containing all the incoming plugin channel registrations that are on the requested channel.

Parameters:

channel - Channel to retrieve registrations for.

Returns:

List of all registrations that are on the channel.

Throws:

IllegalArgumentException - Thrown if channel is null.

getIncomingChannelRegistrations

@NotNull
@NotNull Set<PluginMessageListenerRegistration> getIncomingChannelRegistrations(@NotNull
                                                                                @NotNull Plugin plugin,
                                                                                @NotNull
                                                                                @NotNull String channel)

Gets a set containing all the incoming plugin channel registrations that the specified plugin has on the requested channel.

Parameters:

plugin - Plugin to retrieve registrations for.

channel - Channel to filter registrations by.

Returns:

List of all registrations that the plugin has.

Throws:

IllegalArgumentException - Thrown if plugin or channel is null.

isRegistrationValid

boolean isRegistrationValid(@NotNull
                            @NotNull PluginMessageListenerRegistration registration)

Checks if the specified plugin message listener registration is valid.

A registration is considered valid if it has not be unregistered and that the plugin is still enabled.

Parameters:

registration - Registration to check.

Returns:

True if the registration is valid, otherwise false.

isIncomingChannelRegistered

boolean isIncomingChannelRegistered(@NotNull
                                    @NotNull Plugin plugin,
                                    @NotNull
                                    @NotNull String channel)

Checks if the specified plugin has registered to receive incoming messages through the requested channel.

Parameters:

plugin - Plugin to check registration for.

channel - Channel to test for.

Returns:

True if the channel is registered, else false.

isOutgoingChannelRegistered

boolean isOutgoingChannelRegistered(@NotNull
                                    @NotNull Plugin plugin,
                                    @NotNull
                                    @NotNull String channel)

Checks if the specified plugin has registered to send outgoing messages through the requested channel.

Parameters:

plugin - Plugin to check registration for.

channel - Channel to test for.

Returns:

True if the channel is registered, else false.

dispatchIncomingMessage

void dispatchIncomingMessage(@NotNull
                             @NotNull Player source,
                             @NotNull
                             @NotNull String channel,
                             @NotNull
                             @org.jetbrains.annotations.NotNull byte[] message)

Dispatches the specified incoming message to any registered listeners.

Parameters:

source - Source of the message.

channel - Channel that the message was sent by.

message - Raw payload of the message.