Examples of org.xmlBlaster.util.dispatch.DispatchManager

org.xmlBlaster.util.dispatch.DispatchManager
Manages the sending of messages and commands and does error recovery further we communicate with the dispatcher plugin if one is configured.
There is one instance of this class per queue and remote connection. @author xmlBlaster@marcelruff.info

               if (this.msgErrorHandler == null) {
                  this.msgErrorHandler = new ClientErrorHandler(glob, this);
               }


               boolean forceCbAddressCreation = (updateListener != null);
               this.dispatchManager = new DispatchManager(glob, this.msgErrorHandler,
                                       getSecurityPlugin(), this.clientQueue, this,
                                       this.connectQos.getAddresses(forceCbAddressCreation), sn);
               // the above can call toDead() and the client may have called shutdown(): this.connectQos == null again
               if (this.dispatchManager.isDead())
                   throw new XmlBlasterException(glob, ErrorCode.COMMUNICATION_NOCONNECTION_DEAD, ME, "connect call failed, your toDead() code did shutdown?");

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         for (int i=0; i<cba.length; i++) {
            cba[i].setSessionName(this.sessionName);
            cba[i].addClientProperty(new ClientProperty("__ContextNode", "String", null, this.contextNode.getAbsoluteName()));
            cba[i].setFromPersistenceRecovery(connectQos.isFromPersistenceRecovery());
         }
         this.dispatchManager = new DispatchManager(glob, this.msgErrorHandler,
                                this.securityCtx, this.sessionQueue, (I_ConnectionStatusListener)null,
                                cba, this.sessionName);
      }
      else { // No callback configured
         if (log.isLoggable(Level.FINE)) log.fine(ME+": Don't create dispatch manager as ConnectQos contains no callback addresses");

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      }


      if (this.msgErrorHandler != null)
         this.msgErrorHandler.shutdown();


      DispatchManager dispatchManager = this.dispatchManager;
      if (dispatchManager != null)
         dispatchManager.shutdown();


      this.subjectInfo = null;
      // this.securityCtx = null; We need it in finalize() getSecretSessionId()
      // this.connectQos = null;
      this.expiryTimer = null;

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    */
   public final DispatchStatistic getDispatchStatistic() {
      if (this.statistic == null) {
         synchronized (this) {
            if (this.statistic == null) {
               DispatchManager dispatchManager = this.dispatchManager;
               if (dispatchManager != null)
                  this.statistic = dispatchManager.getDispatchStatistic();
               else
                  this.statistic = new DispatchStatistic();
            }
         }
      }

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      CbQueueProperty cbQueueProperty = newConnectQos.getSessionCbQueueProperty();
      I_Queue sessionQueue = this.sessionQueue;
      if (sessionQueue != null) sessionQueue.setProperties(cbQueueProperty);
      if (wantsCallbacks && hasCallback()) {
         DispatchManager dispatchManager = this.dispatchManager;
         if (dispatchManager != null) {
            dispatchManager.updateProperty(cbQueueProperty.getCallbackAddresses());
            log.info(ME+": Successfully reconfigured callback address with new settings, other reconfigurations are not yet implemented");
            dispatchManager.notifyAboutNewEntry();
         }
      }
      else if (wantsCallbacks && !hasCallback()) {
         log.info(ME+": Successfully reconfigured and created dispatch manager with given callback address");
         DispatchManager tmpDispatchManager = new DispatchManager(glob, this.msgErrorHandler,
                              this.securityCtx, this.sessionQueue, (I_ConnectionStatusListener)null,
                              newConnectQos.getSessionCbQueueProperty().getCallbackAddresses(), this.sessionName);
         DispatchManager dispatchManager = this.dispatchManager;
         if (dispatchManager != null)
            tmpDispatchManager.setDispatcherActive(dispatchManager.isDispatcherActive());
         this.dispatchManager = tmpDispatchManager;
      }
      else if (!wantsCallbacks && hasCallback()) {
         DispatchManager dispatchManager = this.dispatchManager;
         if (dispatchManager != null) {
            dispatchManager.shutdown();
            log.info(ME+": Successfully shutdown dispatch manager as no callback address is configured");
         }
         this.dispatchManager = null;
      }
      else if (!wantsCallbacks && !hasCallback()) {

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      // Avoid dump of password
      if (props == null) props = new Properties();
      props.put(Constants.TOXML_NOSECURITY, ""+true);
      sb.append(this.connectQos.toXml(extraOffset+Constants.INDENT, props));


      DispatchManager dispatchManager = this.dispatchManager;
      if (dispatchManager != null) {
         sb.append(dispatchManager.toXml(extraOffset+Constants.INDENT));
      }
      else {
         sb.append(offset).append(Constants.INDENT).append("<DispatchManager id='NULL'/>");
      }

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      }
      return -1L;
   }


   public String pingClientCallbackServer() {
      DispatchManager dispatchManager = this.dispatchManager;
      if (dispatchManager != null) {
         boolean isSend = dispatchManager.pingCallbackServer(true);
         if (isSend)
            return "Ping done in " + getPingRoundTripDelay() + " millis, current state is "
                  + dispatchManager.getDispatchConnectionsHandler().getState().toString();
         else
            return "Ping is not possible, no callback available";
      }
      return "No ping because of no callback";
   }

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    * Currently only detected by the SOCKET protocol plugin.
    * Others can only detect lost clients with their callback protocol pings
    */
   public void lostClientConnection() {
      if (log.isLoggable(Level.FINE)) log.fine(ME+": Protocol layer is notifying me about a lost connection");
      DispatchManager dispatchManager = this.dispatchManager;
      if (dispatchManager != null)
         dispatchManager.lostClientConnection();
   }

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