tigase.xmpp.impl

## Class BlockingCommand

- java.lang.Object
- - tigase.xmpp.XMPPProcessor
  - - tigase.xmpp.impl.annotation.AnnotatedXMPPProcessor
    - - tigase.xmpp.XMPPProcessorAbstract
      - - tigase.xmpp.impl.BlockingCommand

- All Implemented Interfaces:
    Comparable<XMPPImplIfc>, XMPPImplIfc, XMPPProcessorConcurrencyAwareIfc, XMPPProcessorIfc

      @Bean(name="urn:xmpp:blocking",
            parent=SessionManager.class,
            active=true)
      public class BlockingCommand
      extends XMPPProcessorAbstract
      implements XMPPProcessorIfc

  XEP-0191: Blocking Command. Based on privacy lists.
  Author:
    Andrzej Wójcik
    Originally submitted by:, Daniele Ricci, Behnam Hatami

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static String` | `BLOCK`
    `protected static String` | `BLOCKLIST`
    `protected static String` | `ID`
    `protected static String` | `UNBLOCK`
    `protected static String` | `XMLNS`
    `protected static String` | `XMLNS_ERRORS`

    - ### Fields inherited from class tigase.xmpp.XMPPProcessor

      `ALL_NAMES, ALL_PATHS, cmpInfo`

    - ### Fields inherited from interface tigase.xmpp.XMPPImplIfc

      `CLIENT_XMLNS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BlockingCommand()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `process(Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results, Map<String,Object> settings)`
    `void` | `processFromUserToServerPacket(JID connectionId, Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results, Map<String,Object> settings)` The method is called when a packet is send from the user who is owner of the session to the local server (ping, roster management, privacy lists, etc...).
    `void` | `processServerSessionPacket(Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results, Map<String,Object> settings)` The method is called when a packet addressed to the server domain is received.

    - ### Methods inherited from class tigase.xmpp.XMPPProcessorAbstract

      `isFromUserSession, isNullSession, isServerSession, isToUserSession, processFromUserOutPacket, processFromUserPacket, processNullSessionPacket, processToUserPacket`

    - ### Methods inherited from class tigase.xmpp.impl.annotation.AnnotatedXMPPProcessor

      `id, supDiscoFeatures, supElementNamePaths, supNamespaces, supStreamFeatures, supTypes`

    - ### Methods inherited from class tigase.xmpp.XMPPProcessor

      `canHandle, compareTo, concurrentQueuesNo, getComponentInfo, getInstance, getQueueSize, getStatistics, getThreadsNo, init, toString`

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface tigase.xmpp.XMPPImplIfc

      `canHandle, concurrentQueuesNo, getComponentInfo, getStatistics, id, init, supDiscoFeatures, supElementNamePaths, supNamespaces, supStreamFeatures, supTypes`

    - ### Methods inherited from interface java.lang.Comparable

      `compareTo`

- - ### Field Detail

    - #### XMLNS

          protected static final String XMLNS

      See Also:
        Constant Field Values

    - #### XMLNS_ERRORS

          protected static final String XMLNS_ERRORS

      See Also:
        Constant Field Values

    - #### ID

          protected static final String ID

      See Also:
        Constant Field Values

    - #### BLOCKLIST

          protected static final String BLOCKLIST

      See Also:
        Constant Field Values

    - #### BLOCK

          protected static final String BLOCK

      See Also:
        Constant Field Values

    - #### UNBLOCK

          protected static final String UNBLOCK

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### BlockingCommand

          public BlockingCommand()

  - ### Method Detail

    - #### process

          public void process(Packet packet,
                              XMPPResourceConnection session,
                              NonAuthUserRepository repo,
                              Queue<Packet> results,
                              Map<String,Object> settings)
                       throws XMPPException

      Specified by:
        `process` in interface `XMPPProcessorIfc`
      Overrides:
        `process` in class `XMPPProcessorAbstract`
      Parameters:
        `packet` - packet is which being processed. This parameter may never be null. Even though this is not immutable object it mustn't be altered. None of it's fields or attributes can be changed during processing.
        `session` - user session which keeps all the user session data and also gives an access to the user's repository data. It allows for storing information in a permanent storage or in memory only during the live of the online session. This parameter can be null if there is no online user session at the time of the packet processing.
        `repo` - this is a user data storage which is normally used when the user session (parameter above) is null. This is repository allows for a very restricted access only. It allows for storing some user private data (doesn't allow overwriting existing data) like messages for offline users and it also allows for reading user public data like VCard.
        `results` - this a collection with packets which have been generated as input packet processing results. Regardless a response to a user request is sent or the packet is forwarded to it's destination it is always required that a copy of the input packet is created and stored in the results queue.
        `settings` - this map keeps plugin specific settings loaded from the Tigase server configuration. In most cases it is unused, however if the plugin needs to access an external database that this is a way to pass database connection string to the plugin.
      Throws:
        `XMPPException`

    - #### processFromUserToServerPacket

          public void processFromUserToServerPacket(JID connectionId,
                                                    Packet packet,
                                                    XMPPResourceConnection session,
                                                    NonAuthUserRepository repo,
                                                    Queue<Packet> results,
                                                    Map<String,Object> settings)
                                             throws PacketErrorTypeException

      Description copied from class: `XMPPProcessorAbstract`
      The method is called when a packet is send from the user who is owner of the session to the local server (ping, roster management, privacy lists, etc...). There is no default implementation for the method.
      Specified by:
        `processFromUserToServerPacket` in class `XMPPProcessorAbstract`
      Parameters:
        `connectionId` - is a `JID` instance with the session connection ID.
        `packet` - is a `Packet` sent by the user.
        `session` - is a `XMPPResourceConnection` instance with all the sending user session data.
        `repo` - is a `NonAuthUserRepository` instance giving access to a part of the user repository which is accessible regardless the session is authenticated or not.
        `results` - is a packets `Queue` with all the processing results from the plugin.
        `settings` - is a `Map` with all the configuration settings passed to the plugin.
      Throws:
        `PacketErrorTypeException` - on attempt to send an error response to the error packet.

    - #### processServerSessionPacket

          public void processServerSessionPacket(Packet packet,
                                                 XMPPResourceConnection session,
                                                 NonAuthUserRepository repo,
                                                 Queue<Packet> results,
                                                 Map<String,Object> settings)
                                          throws PacketErrorTypeException

      Description copied from class: `XMPPProcessorAbstract`
      The method is called when a packet addressed to the server domain is received. Please note, if a local user sends a packet to the server, the packet is handled by the `processFromUserPacket(...)` method. This method is not called for such packets.
      Specified by:
        `processServerSessionPacket` in class `XMPPProcessorAbstract`
      Parameters:
        `packet` - is a `Packet` received by the server and addressed to the server - the server virtual domain name.
        `session` - is a `XMPPResourceConnection` instance with all the server session data.
        `repo` - is a `NonAuthUserRepository` instance giving access to a part of the user repository which is accessible regardless the session is authenticated or not.
        `results` - is a packets `Queue` with all the processing results from the plugin.
        `settings` - is a `Map` with all the configuration settings passed to the plugin.
      Throws:
        `PacketErrorTypeException` - on attempt to send an error response to the error packet.

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