Examples of com.sun.sgs.service.TaskService

com.sun.sgs.service.TaskService
This Service provides facilities for scheduling tasks to run after the current task completes. The methods inherited from TaskManager schedule durable, transactional tasks. The scheduleNonDurableTask methods defined here are used to schedule tasks that are not persisted by the TaskService but optionally invoked in a transactional context.
By default all tasks scheduled will be owned by the calling task's owning identity. To create a new owning identity for a task use the RunWithNewIdentity annotation as described in the docs for TaskManager. @see TaskManager

    }
      }
  }


  private void scheduleTask() {
      TaskService taskService = 
    ChannelServiceImpl.getTaskService();
      if (isDurable) {
    taskService.scheduleTask(this, 1000L);
      } else {
    taskService.scheduleNonDurableTask(this, 1000L, true);
      }
  }

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  implements RecoveryListener
    {
  /** {@inheritDoc} */
  public void recover(final Node node, SimpleCompletionHandler handler) {
      final long nodeId = node.getId();
      final TaskService taskService = getTaskService();
      
      try {
    if (logger.isLoggable(Level.INFO)) {
        logger.log(Level.INFO, "Node:{0} recovering for node:{1}",
             localNodeId, nodeId);
    }


    /*
     * Schedule persistent tasks to perform recovery.
     */
    transactionScheduler.runTask(
        new AbstractKernelRunnable("ScheduleRecoveryTasks") {
      public void run() {
          /*
           * For each session on the failed node, notify
           * the session's ClientSessionListener and
           * clean up the session's persistent data and
           * bindings. 
           */
          taskService.scheduleTask(
        new HandleNextDisconnectedSessionTask(nodeId));
        
          /*
           * Remove client session server proxy and
           * associated binding for failed node, as
           * well as protocol descriptors for the
           * failed node.
           */
          taskService.scheduleTask(
        new RemoveNodeSpecificDataTask(nodeId));
      } },
        taskOwner);
               
    handler.completed();

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    return;
      }


      WatchdogService watchdogService =
    ChannelServiceImpl.getWatchdogService();
      TaskService taskService = ChannelServiceImpl.getTaskService();
      BigInteger channelRefId = new BigInteger(channelIter.next());
      channelIter.remove();
      ChannelImpl channel = (ChannelImpl) getObjectForId(channelRefId);
      if (channel != null) {
    channel.reassignCoordinator(failedNodeId);
    
    /*
     * If other channel servers have failed, remove the failed
     * server node ID from the channel too.  This covers the
     * case where a channel coordinator (informed of a node
     * failure) fails before it has a chance to schedule a task
     * to remove the server node ID for another failed node
     * (cascading failure during recovery).
     */
    for (long serverNodeId : channel.getServerNodeIds()) {
        Node serverNode = watchdogService.getNode(serverNodeId);
        if (serverNode == null || !serverNode.isAlive()) {
      channel.removeServerNodeId(serverNodeId);
        }
    }
      }


      /*
       * Schedule a task to reassign the next channel coordinator, or
       * if done with coordinator reassignment, remove the recovered
       * node's  mapping from the node-to-event-queues map.
       */
      if (channelIter.hasNext()) {
    taskService.scheduleTask(this);
      }
  }

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    }
      }
  }


  private void scheduleTask() {
      TaskService taskService = 
    ChannelServiceImpl.getTaskService();
      if (isDurable) {
    taskService.scheduleTask(this, 1000L);
      } else {
    taskService.scheduleNonDurableTask(this, 1000L, true);
      }
  }

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    return;
      }


      WatchdogService watchdogService =
    ChannelServiceImpl.getWatchdogService();
      TaskService taskService = ChannelServiceImpl.getTaskService();
      BigInteger channelRefId = new BigInteger(channelIter.next());
      channelIter.remove();
      ChannelImpl channel = (ChannelImpl) getObjectForId(channelRefId);
      if (channel != null) {
    channel.reassignCoordinator(failedNodeId);
    
    /*
     * If other channel servers have failed, remove the failed
     * server node ID from the channel too.  This covers the
     * case where a channel coordinator (informed of a node
     * failure) fails before it has a chance to schedule a task
     * to remove the server node ID for another failed node
     * (cascading failure during recovery).
     */
    for (long serverNodeId : channel.getServerNodeIds()) {
        Node serverNode = watchdogService.getNode(serverNodeId);
        if (serverNode == null || !serverNode.isAlive()) {
      channel.removeServerNodeId(serverNodeId);
        }
    }
      }


      /*
       * Schedule a task to reassign the next channel coordinator, or
       * if done with coordinator reassignment, remove the recovered
       * node's  mapping from the node-to-event-queues map.
       */
      if (channelIter.hasNext()) {
    taskService.scheduleTask(this);
      }
  }

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Related Classes of com.sun.sgs.service.TaskService

com.sun.sgs.impl.service.channel.ChannelImpl$ReassignCoordinatorsTask

com.sun.sgs.impl.service.channel.ChannelImpl$RemoveFailedSessionsFromLocalChannelsTask

com.sun.sgs.impl.service.channel.ChannelImpl$SavedMessageReaper

com.sun.sgs.impl.service.channel.ChannelServiceImpl$ChannelServiceNodeListener

com.sun.sgs.impl.service.channel.ChannelServiceImpl$ChannelServiceRecoveryListener

com.sun.sgs.impl.service.session.ClientSessionImpl$HandleNextDisconnectedSessionTask

com.sun.sgs.impl.service.session.ClientSessionServiceImpl$ClientSessionServiceRecoveryListener

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