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 Details

    • 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.

  • Method Details

    • 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.