Package tigase.server.xmppsession

Class SessionManager

    • Field Detail

      • ADMIN_COMMAND_NODE

        protected static final java.lang.String ADMIN_COMMAND_NODE
        See Also:
        Constant Field Values

      • connectionsByFrom

        protected java.util.concurrent.ConcurrentHashMap<JID,​XMPPResourceConnection> connectionsByFrom
        A Map with connectionID as a key and an object with all the user connection data as a value

      • sessionsByNodeId

        protected java.util.concurrent.ConcurrentHashMap<BareJID,​XMPPSession> sessionsByNodeId
        A Map with bare user JID as a key and a user session object as a value.

    • Constructor Detail

      • SessionManager

        public SessionManager()

    • Method Detail

      • addPlugin

        public XMPPImplIfc addPlugin​(XMPPImplIfc proc)
                      throws java.lang.ClassNotFoundException,
                             java.lang.InstantiationException,
                             java.lang.IllegalAccessException,
                             TigaseDBException
        Throws:
        java.lang.ClassNotFoundException
        java.lang.InstantiationException
        java.lang.IllegalAccessException
        TigaseDBException

      • containsJid

        public boolean containsJid​(BareJID jid)
        Description copied from interface: OnlineJidsReporter
        The method checks whether the given JID is known to the installation, either user connected to local machine or any of the cluster nodes. False result does not mean the user is not connected. It means the method does not know anything about the JID. Some clustering strategies may not cache online users information.
        Specified by:
        containsJid in interface OnlineJidsReporter
        Parameters:
        jid - a user's JID for whom we query information.
        Returns:
        true if the user is known as online to the installation, false if the method does not know.

      • containsJidLocally

        public boolean containsJidLocally​(BareJID jid)
        Description copied from interface: OnlineJidsReporter
        The method checks whether the given JID is known to local cluster node as connected user. False result means that given JID is not connected to local cluster node but it may be connected to other cluster node. Result of this method should be independent of used clustering strategy.
        Specified by:
        containsJidLocally in interface OnlineJidsReporter
        Parameters:
        jid - a user's JID for whom we query information
        Returns:
        true if user is known as connected to local cluster node, false if it is not connected to local node

      • containsJidLocally

        public boolean containsJidLocally​(JID jid)
        Description copied from interface: OnlineJidsReporter
        The method checks whether the given JID is known to local cluster node as connected user. False result means that given JID is not connected to local cluster node but it may be connected to other cluster node. Result of this method should be independent of used clustering strategy.
        Specified by:
        containsJidLocally in interface OnlineJidsReporter
        Parameters:
        jid - a user's JID for whom we query information
        Returns:
        true if user is known as connected to local cluster node, false if it is not connected to local node

      • checkSingleUserConnectionsLimit

        protected void checkSingleUserConnectionsLimit​(XMPPResourceConnection conn)

      • handlesLocalDomains

        public boolean handlesLocalDomains()
        Description copied from interface: VHostListener
        Indicates whether the component accepts packets to all local domains. The best example would be SM component which usually handles all requests sent to any local domain.
        Specified by:
        handlesLocalDomains in interface VHostListener
        Overrides:
        handlesLocalDomains in class BasicComponent
        Returns:
        'true' if the component accepts packets to local domains 'false' otherwise.

      • hashCodeForPacket

        public int hashCodeForPacket​(Packet packet)
        Description copied from class: AbstractMessageReceiver
        This method decides how incoming packets are distributed among processing threads. Different components needs different distribution to efficient use all threads and avoid packets re-ordering.
        If there are N processing threads, packets are distributed among threads using following code: 
         int threadNo = Math.abs(hashCodeForPacket(packet) % N);

        For a PubSub component, for example, a better packets distribution would be based on the PubSub channel name, for SM a better distribution is based on the destination address, etc....
        Overrides:
        hashCodeForPacket in class AbstractMessageReceiver
        Parameters:
        packet - is a Packet which needs to be processed by some thread.
        Returns:
        a hash code generated for the input thread.

      • initBindings

        public void initBindings​(javax.script.Bindings binds)
        Description copied from class: BasicComponent
        Initialize a mapping of key/value pairs which can be used in scripts loaded by the server
        Overrides:
        initBindings in class BasicComponent
        Parameters:
        binds - A mapping of key/value pairs, all of whose keys are Strings.

      • processingInThreads

        public int processingInThreads()
        Description copied from class: AbstractMessageReceiver
        Concurrency control method. Returns preferable number of threads set for this component.
        Overrides:
        processingInThreads in class AbstractMessageReceiver
        Returns:
        preferable number of threads set for this component.

      • processingOutThreads

        public int processingOutThreads()
        Description copied from class: AbstractMessageReceiver
        Concurrency control method. Returns preferable number of threads set for this component.
        Overrides:
        processingOutThreads in class AbstractMessageReceiver
        Returns:
        preferable number of threads set for this component.

      • processPacket

        public void processPacket​(Packet packet)
        Description copied from class: AbstractMessageReceiver
        This is the main Packet processing method. It is called concurrently from many threads so implementing it in thread save manner is essential. The method is called for each packet addressed to the component.
        Please note, the Packet instance may be processed by different parts of the server, different components or plugins at the same time. Therefore this is very important to tread the Packet instance as unmodifiable object.
        Processing in this method is asynchronous, therefore there is no result value. If there are some 'result' packets generated during processing, they should be passed back using addOutPacket(Packet) method.
        Specified by:
        processPacket in class AbstractMessageReceiver
        Parameters:
        packet - is an instance of the Packet class passed for processing.

      • removePlugin

        public void removePlugin​(XMPPImplIfc proc)

      • removePlugin

        public void removePlugin​(java.lang.String plug_id)

      • skipPrivacy

        public boolean skipPrivacy()

      • getConnectionIdsForJid

        public JID[] getConnectionIdsForJid​(BareJID jid)
        Description copied from interface: OnlineJidsReporter
        Retrieve all connection IDs (CIDs) for the given user.
        Specified by:
        getConnectionIdsForJid in interface OnlineJidsReporter
        Parameters:
        jid - id of the user for which we want to retrieve the list.
        Returns:
        an array of JID containing all Connection IDs (CIDs) for the given user.

      • getDiscoCategoryType

        public java.lang.String getDiscoCategoryType()
        Description copied from class: BasicComponent
        Method returns component category type used for service discovery responses.
        Overrides:
        getDiscoCategoryType in class BasicComponent
        Returns:
        category type of a component

      • getDiscoDescription

        public java.lang.String getDiscoDescription()
        Description copied from class: BasicComponent
        Method returns description used for service discovery responses.
        Overrides:
        getDiscoDescription in class BasicComponent
        Returns:
        description of a component

      • getDiscoFeatures

        public java.util.List<Element> getDiscoFeatures​(JID from)
        Description copied from class: BasicComponent
        Method returns list of features provided by this component for provided JID.
        Specified by:
        getDiscoFeatures in interface XMPPService
        Overrides:
        getDiscoFeatures in class BasicComponent
        Parameters:
        from - a request sender address. Some service disco elements are meant to be available only to system administrarors. The component is responsible to check whether the sender is the component administrator and return results appropriate.
        Returns:
        list of features

      • getDiscoInfo

        public Element getDiscoInfo​(java.lang.String node,
                            JID jid,
                            JID from)
        Description copied from interface: XMPPService
        Returns service discovery info for the component. If the jid is null then this is info for the top level request. SM may return disco info on the top level. Other components should not.
        Specified by:
        getDiscoInfo in interface XMPPService
        Overrides:
        getDiscoInfo in class BasicComponent
        Parameters:
        node - is service discovery node for which the request is made. Is normally null for the component top level request.
        jid - is the jid to which the request has been made.
        from - is the request sender address. Some service discovery information is only meant for administrators.
        Returns:
        returns an XML Element with service discovery data.

      • getDiscoItems

        public java.util.List<Element> getDiscoItems​(java.lang.String node,
                                             JID jid,
                                             JID from)
        Description copied from interface: XMPPService
        Returns service discovery items for the component. If the JID is null then this is request for the top level request. SM may return disco items on the top level, other components should just return it's top level service discovery item for null node.
        Specified by:
        getDiscoItems in interface XMPPService
        Overrides:
        getDiscoItems in class BasicComponent
        Parameters:
        node - is a service discovery node for which the request has been made.
        jid - is the jid to which the request has been made.
        from - is the request sender address. Some service discovery information is only meant for administrators.
        Returns:
        a list of service discovery items for this component or the component itself disco item for the top level request.

      • getOpenUsersConnectionsAmount

        public int getOpenUsersConnectionsAmount()

      • getSingleUserConnectionsLimit

        public java.lang.Integer getSingleUserConnectionsLimit()

      • getStatistics

        public void getStatistics​(StatisticsList list)
        Description copied from class: AbstractMessageReceiver
        Method returns component statistics. Please note, the method can be called every second by the server monitoring system therefore no extensive or lengthy calculations are allowed. If there are some statistics requiring lengthy operations like database access they must have Level.FINEST assigned and must be put inside the level guard to prevent generating them by the system monitor. The system monitor does not collect FINEST statistics.
        Level guard code looks like the example below: 
         if (list.checkLevel(Level.FINEST)) {
   // Some CPU intensive calculations or lengthy operations
   list.add(getName(), "Statistic description", stat_value, Level.FINEST);
 }
        This way you make sure your extensive operation is not executed every second by the monitoring system and does not affect the server performance.
        Specified by:
        getStatistics in interface StatisticsContainerIfc
        Overrides:
        getStatistics in class AbstractMessageReceiver
        Parameters:
        list - is a StatistcsList where all statistics are stored.

      • hasCompleteJidsInfo

        public boolean hasCompleteJidsInfo()
        Description copied from interface: OnlineJidsReporter
        Method checks whether the clustering strategy has a complete JIDs info. That is whether the strategy knows about all users connected to all nodes. Some strategies may choose not to share this information among nodes, hence the methods returns false. Other may synchronize this information and can provide it to further optimize cluster traffic.
        Specified by:
        hasCompleteJidsInfo in interface OnlineJidsReporter
        Returns:
        a true boolean value if the strategy has a complete information about all users connected to all cluster nodes.

      • setAllPlugins

        public void setAllPlugins​(java.util.concurrent.ConcurrentSkipListSet<XMPPImplIfc> allPlugins)

      • setSmThreadsPool

        public void setSmThreadsPool​(java.lang.String val)

      • register

        public void register​(Kernel kernel)
        Description copied from interface: RegistrarBean
        Method called when bean is being registered allowing developer to programatically register other beans.
        Specified by:
        register in interface RegistrarBean
        Parameters:
        kernel - - instance from local scope

      • unregister

        public void unregister​(Kernel kernel)
        Description copied from interface: RegistrarBean
        Method called while bean is being unregistered.
        Specified by:
        unregister in interface RegistrarBean
        Parameters:
        kernel - - instance from local scope

      • getProcessors

        public java.util.Map<java.lang.String,​XMPPProcessorIfc> getProcessors()

      • getPreProcessors

        public java.util.Map<java.lang.String,​XMPPPreprocessorIfc> getPreProcessors()

      • getPostProcessors

        public java.util.Map<java.lang.String,​XMPPPostprocessorIfc> getPostProcessors()

      • getOutFilters

        public java.util.Map<java.lang.String,​XMPPPacketFilterIfc> getOutFilters()

      • everySecond

        public void everySecond()
        Description copied from class: AbstractMessageReceiver
        Utility method executed precisely every second. A component can overwrite the method to put own code to be executed at the regular intervals of time.
        Note, no extensive calculations should happen in this method nor long lasting operations. It is essential that the method processing does not exceed 1 second. The overriding method must call the the super method first and only then run own code.
        Overrides:
        everySecond in class AbstractMessageReceiver

      • everyMinute

        public void everyMinute()
        Description copied from class: AbstractMessageReceiver
        Utility method executed precisely every minute. A component can overwrite the method to put own code to be executed at the regular intervals of time.
        Note, no extensive calculations should happen in this method nor long lasting operations. It is essential that the method processing does not exceed 1 minute. The overriding method must call the the super method first and only then run own code.
        Overrides:
        everyMinute in class AbstractMessageReceiver

      • addTrusted

        protected boolean addTrusted​(JID jid)

      • closeConnection

        protected void closeConnection​(XMPPResourceConnection connection,
                               JID connectionId,
                               java.lang.String userId,
                               boolean closeOnly)

      • delTrusted

        protected boolean delTrusted​(JID jid)

      • fastAddOutPacket

        protected boolean fastAddOutPacket​(Packet packet)

      • loginUserSession

        protected XMPPResourceConnection loginUserSession​(JID conn_id,
                                                  java.lang.String domain,
                                                  BareJID user_id,
                                                  java.lang.String resource,
                                                  java.lang.String xmpp_sessionId,
                                                  boolean tmpSession)

      • processAdminsOrDomains

        protected boolean processAdminsOrDomains​(Packet packet)

      • processCommand

        protected boolean processCommand​(Packet pc)

      • processPresenceUpdate

        protected void processPresenceUpdate​(XMPPSession session,
                                     Element packet)

      • sendToAdmins

        protected void sendToAdmins​(Packet packet)

      • isBrokenPacket

        protected boolean isBrokenPacket​(Packet p)