tigase.eventbus.component

## Class EventBusComponent

- java.lang.Object
- - tigase.server.BasicComponent
  - - tigase.server.AbstractMessageReceiver
    - - tigase.component.AbstractKernelBasedComponent
      - - tigase.eventbus.component.EventBusComponent

- All Implemented Interfaces:
    ClusteredComponentIfc, Configurable, XMPPService, ConfigurationChangedAware, Initializable, RegistrarBean, DisableDisco, MessageReceiver, ServerComponent, StatisticsContainer, StatisticsContainerIfc, VHostListener
  Direct Known Subclasses:
    EventBusComponent

      @Bean(name="eventbus",
            parent=Kernel.class,
            active=true)
       @ConfigType(value={DefaultMode,SessionManagerMode,ConnectionManagersMode,ComponentMode})
      public class EventBusComponent
      extends AbstractKernelBasedComponent
      implements ClusteredComponentIfc

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class tigase.component.AbstractKernelBasedComponent

      `AbstractKernelBasedComponent.DefaultPacketWriter`

  - ### Field Summary

    - ### Fields inherited from class tigase.component.AbstractKernelBasedComponent

      `eventBus, kernel, log`

    - ### Fields inherited from class tigase.server.AbstractMessageReceiver

      `HOUR, INCOMING_FILTERS_PROP_KEY, INCOMING_FILTERS_PROP_VAL, MAX_QUEUE_SIZE_PROP_KEY, MAX_QUEUE_SIZE_PROP_VAL, maxInQueueSize, maxOutQueueSize, maxQueueSize, MINUTE, OUTGOING_FILTERS_PROP_KEY, OUTGOING_FILTERS_PROP_VAL, PACKET_DELIVERY_RETRY_COUNT_PROP_KEY, SCHEDULER_THREADS_PROP_KEY, SECOND`

    - ### Fields inherited from class tigase.server.BasicComponent

      `admins, ALL_PROP_KEY, COMMAND_PROP_NODE, scriptCommands, SCRIPTS_DIR_PROP_DEF, SCRIPTS_DIR_PROP_KEY, trusted, vHostManager`

    - ### Fields inherited from interface tigase.disco.XMPPService

      `CMD_FEATURES, DEF_FEATURES, INFO_XMLNS, ITEMS_XMLNS`

    - ### Fields inherited from interface tigase.conf.Configurable

      `ADMINS_PROP_KEY, AMP_CLASS_NAME, AMP_CLUST_CLASS_NAME, AUTH_DOMAIN_POOL_CLASS, AUTH_REPO_DOMAINS_PROP_KEY, AUTH_REPO_PARAMS_NODE, AUTH_REPO_POOL_CLASS, AUTH_REPO_URL_PROP_KEY, BOSH_CLUST_COMP_CLASS_NAME, BOSH_COMP_CLASS_NAME, C2S_CLUST_COMP_CLASS_NAME, C2S_COMP_CLASS_NAME, CL_COMP_CLASS_NAME, CLUSTER_CONECT, CLUSTER_CONTR_CLASS_NAME, CLUSTER_LISTEN, CLUSTER_MODE, CLUSTER_NODES, CLUSTER_NODES_PROP_KEY, COMP_PROT_CLASS_NAME, COMPONENT_ID_PROP_KEY, DEF_AMP_NAME, DEF_BOSH_NAME, DEF_C2S_NAME, DEF_CL_COMP_NAME, DEF_CLUST_CONTR_NAME, DEF_COMP_PROT_NAME, DEF_EVENTBUS_NAME, DEF_EXT_COMP_NAME, DEF_HOSTNAME_PROP_KEY, DEF_MONITOR_NAME, DEF_S2S_NAME, DEF_SM_NAME, DEF_STATS_NAME, DEF_VHOST_MAN_NAME, DEF_WS2S_NAME, DERBY_REPO_CLASS_PROP_VAL, DERBY_REPO_URL_PROP_VAL, DRUPAL_REPO_URL_PROP_VAL, DRUPALWP_REPO_CLASS_PROP_VAL, DUMMY_REPO_CLASS_PROP_VAL, EVENTBUS_CLASS_NAME, EXT_COMP_CLASS_NAME, GEN_ADMINS, GEN_AUTH_DB, GEN_AUTH_DB_URI, GEN_COMP_CLASS, GEN_COMP_NAME, GEN_CONF, GEN_CONFIG, GEN_CONFIG_ALL, GEN_CONFIG_COMP, GEN_CONFIG_CS, GEN_CONFIG_DEF, GEN_CONFIG_SM, GEN_DEBUG, GEN_DEBUG_PACKAGES, GEN_EXT_COMP, GEN_MAX_QUEUE_SIZE, GEN_SCRIPT_DIR, GEN_SM_PLUGINS, GEN_SREC_ADMINS, GEN_SREC_DB, GEN_SREC_DB_URI, GEN_TEST, GEN_TRUSTED, GEN_USER_DB, GEN_USER_DB_URI, GEN_USER_DB_URI_PROP_KEY, GEN_VIRT_HOSTS, HOSTNAMES_PROP_KEY, LIBRESOURCE_REPO_CLASS_PROP_VAL, LIBRESOURCE_REPO_URL_PROP_VAL, MONITOR_CLASS_NAME, MONITOR_CLUST_CLASS_NAME, MONITORING, MYSQL_REPO_CLASS_PROP_VAL, MYSQL_REPO_URL_PROP_VAL, PGSQL_REPO_CLASS_PROP_VAL, PGSQL_REPO_URL_PROP_VAL, ROUTER_COMP_CLASS_NAME, S2S_CLUST_COMP_CLASS_NAME, S2S_COMP_CLASS_NAME, SHARED_AUTH_REPO_PARAMS_PROP_KEY, SHARED_AUTH_REPO_PROP_KEY, SHARED_USER_REPO_PARAMS_PROP_KEY, SHARED_USER_REPO_PROP_KEY, SM_CLUST_COMP_CLASS_NAME, SM_COMP_CLASS_NAME, STANZA_WHITE_CHAR_ACK, STANZA_XMPP_ACK, STATS_CLASS_NAME, STRINGPREP_PROCESSOR, TIGASE_AUTH_REPO_CLASS_PROP_VAL, TIGASE_AUTH_REPO_URL_PROP_VAL, TIGASE_CUSTOM_AUTH_REPO_CLASS_PROP_VAL, TRUSTED_PROP_KEY, USER_DOMAIN_POOL_CLASS, USER_REPO_DOMAINS_PROP_KEY, USER_REPO_PARAMS_NODE, USER_REPO_POOL_CLASS, USER_REPO_POOL_SIZE, USER_REPO_POOL_SIZE_PROP_KEY, USER_REPO_URL_PROP_KEY, VHOST_MAN_CLASS_NAME, VHOST_MAN_CLUST_CLASS_NAME, WS2S_CLASS_NAME, WS2S_CLUST_CLASS_NAME, XML_REPO_CLASS_PROP_VAL, XML_REPO_URL_PROP_VAL, XMPP_STANZA_ACK`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `EventBusComponent()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getDiscoCategory()` Method returns category of a component used for service discovery responses.
    `String` | `getDiscoCategoryType()` Method returns component category type used for service discovery responses.
    `String` | `getDiscoDescription()` Method returns description used for service discovery responses.
    `void` | `getStatistics(StatisticsList list)` Method returns component statistics.
    `boolean` | `isDiscoNonAdmin()` Is this component discoverable by disco#items for domain by non admin users.
    `boolean` | `isSubdomain()`
    `protected void` | `onNodeConnected(JID jid)`
    `void` | `onNodeDisconnected(JID jid)`
    `void` | `processPacket(Packet packet)` This is the main `Packet` processing method.
    `protected void` | `registerModules(Kernel kernel)`
    `void` | `setClusterController(ClusterControllerIfc cl_controller)` Set's the configures the cluster controller object for cluster communication and API.

    - ### Methods inherited from class tigase.component.AbstractKernelBasedComponent

      `createScriptEngineManager, getComponentVersion, getKernel, initBindings, register, start, unregister, updateServiceEntity`

    - ### Methods inherited from class tigase.server.AbstractMessageReceiver

      `addOutPacket, addOutPacketNB, addOutPackets, addOutPacketWithTimeout, addPacket, addPacketNB, addPackets, addRegexRouting, addTimerTask, addTimerTask, addTimerTask, addTimerTask, addTimerTask, addTimerTaskWithTimeout, addTimerTaskWithTimeout, beanConfigurationChanged, clearRegexRoutings, everyHour, everyMinute, everySecond, getMaxQueueSize, getRegexRoutings, hashCodeForPacket, isInRegexRoutings, newPacketId, processingInThreads, processingOutThreads, processingThreads, processOutPacket, processPacket, release, removeRegexRouting, schedulerThreads, setIncomingFilters, setName, setOutogingFilters, setParent, setSchedulerThreads_size, stop`

    - ### Methods inherited from class tigase.server.BasicComponent

      `addComponentDomain, canCallCommand, canCallCommand, checkCommandAcl, checkCommandAcl, getComponentId, getComponentInfo, getDefaults, getDefHostName, getDefVHostItem, getDiscoFeatures, getDiscoFeatures, getDiscoInfo, getDiscoItems, getName, getNodesConnected, getNodesConnectedWithLocal, getScriptCommands, getScriptItems, getServiceEntity, getVHostItem, handlesLocalDomains, handlesNameSubdomains, handlesNonLocalDomains, initializationCompleted, initialize, isAdmin, isInitializationComplete, isLocalDomain, isLocalDomainOrComponent, isNonAdminCommands, isTrusted, isTrusted, nodeConnected, nodeDisconnected, processScriptCommand, removeComponentDomain, removeServiceDiscoveryItem, setAdmins, setCommandsACL, setProperties, setScriptsBaseDir, setVHostManager, updateServiceDiscoveryItem, updateServiceDiscoveryItem, updateServiceDiscoveryItem`

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

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

    - ### Methods inherited from interface tigase.cluster.api.ClusteredComponentIfc

      `nodeConnected, nodeDisconnected`

    - ### Methods inherited from interface tigase.server.ServerComponent

      `getComponentId, getComponentInfo, getName, initializationCompleted, isInitializationComplete, processPacket, release, setName`

    - ### Methods inherited from interface tigase.disco.XMPPService

      `getDiscoFeatures, getDiscoInfo, getDiscoItems`

    - ### Methods inherited from interface tigase.stats.StatisticsContainerIfc

      `getName`

    - ### Methods inherited from interface tigase.server.MessageReceiver

      `getDefHostName`

- - ### Constructor Detail

    - #### EventBusComponent

          public EventBusComponent()

  - ### Method Detail

    - #### getDiscoCategory

          public String getDiscoCategory()

      Description copied from class: `BasicComponent`
      Method returns category of a component used for service discovery responses.
      Overrides:
        `getDiscoCategory` in class `BasicComponent`
      Returns:
        category of a component

    - #### getDiscoCategoryType

          public 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 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

    - #### 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.

    - #### isDiscoNonAdmin

          public boolean isDiscoNonAdmin()

      Description copied from class: `AbstractKernelBasedComponent`
      Is this component discoverable by disco#items for domain by non admin users.
      Specified by:
        `isDiscoNonAdmin` in class `AbstractKernelBasedComponent`
      Returns:
        `true` - if yes

    - #### isSubdomain

          public boolean isSubdomain()

      Overrides:
        `isSubdomain` in class `BasicComponent`

    - #### onNodeDisconnected

          public void onNodeDisconnected(JID jid)

      Overrides:
        `onNodeDisconnected` in class `BasicComponent`

    - #### 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.
      Overrides:
        `processPacket` in class `AbstractKernelBasedComponent`
      Parameters:
        `packet` - is an instance of the `Packet` class passed for processing.

    - #### setClusterController

          public void setClusterController(ClusterControllerIfc cl_controller)

      Description copied from interface: `ClusteredComponentIfc`
      Set's the configures the cluster controller object for cluster communication and API.
      Specified by:
        `setClusterController` in interface `ClusteredComponentIfc`
      Overrides:
        `setClusterController` in class `BasicComponent`
      Parameters:
        `cl_controller` - cluster controller object used for cluster communication

    - #### onNodeConnected

          protected void onNodeConnected(JID jid)

      Overrides:
        `onNodeConnected` in class `BasicComponent`

    - #### registerModules

          protected void registerModules(Kernel kernel)

      Specified by:
        `registerModules` in class `AbstractKernelBasedComponent`

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