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

  implements RecoveryListener
    {
  /** {@inheritDoc} */
  public void recover(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() {
          /*
           * Reassign each failed coordinator to a new node.
           */
          taskService.scheduleTask(
        new ChannelImpl.ReassignCoordinatorsTask(
            nodeId));
          /*
           * Remove binding to channel server proxy for
           * failed node, and remove proxy's wrapper.
           */
          taskService.scheduleTask(
        new RemoveChannelServerProxyTask(nodeId));
      }
        },
        taskOwner);

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                return;
            }


      final long nodeId = node.getId();
      channelServerCache.remove(nodeId);
      final TaskService taskService = getTaskService();
      try {
    if (logger.isLoggable(Level.INFO)) {
        logger.log(Level.INFO,
             "Node:{0} handling nodeFailed:{1}",
             localNodeId, nodeId);
    }


    /*
     * Schedule persistent task to remove the failed server's node
     * ID from locally coordinated channels.
     */
    transactionScheduler.runTask(
        new AbstractKernelRunnable(
      "ScheduleRemoveFailedNodeFromLocalChannelsTask")
        {
      public void run() {
          taskService.scheduleTask(
        new ChannelImpl.
            RemoveFailedNodeFromLocalChannelsTask(
          localNodeId, nodeId));
      }
        }, taskOwner);

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      DataService dataService =
    ClientSessionServiceImpl.getInstance().getDataService();
      // TBD: this could use a BindingKeyedMap.
      String key = dataService.nextServiceBoundName(lastKey);
      if (key != null && key.startsWith(nodePrefix)) {
    TaskService taskService =
        ClientSessionServiceImpl.getTaskService();
    taskService.scheduleTask(
        new CleanupDisconnectedSessionTask(key));
    lastKey = key;
    taskService.scheduleTask(this);
      }
  }

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  implements RecoveryListener
    {
  /** {@inheritDoc} */
  public void recover(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() {
          /*
           * Reassign each failed coordinator to a new node.
           */
          taskService.scheduleTask(
        new ChannelImpl.ReassignCoordinatorsTask(
            nodeId));
          /*
           * Remove binding to channel server proxy for
           * failed node, and remove proxy's wrapper.
           */
          taskService.scheduleTask(
        new RemoveChannelServerProxyTask(nodeId));
      }
        },
        taskOwner);

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                return;
            }


      final long nodeId = node.getId();
      channelServerCache.remove(nodeId);
      final TaskService taskService = getTaskService();
      try {
    if (logger.isLoggable(Level.INFO)) {
        logger.log(Level.INFO,
             "Node:{0} handling nodeFailed:{1}",
             localNodeId, nodeId);
    }


    /*
     * Schedule persistent task to remove the failed server's node
     * ID from locally coordinated channels.
     */
    transactionScheduler.runTask(
        new AbstractKernelRunnable(
      "ScheduleRemoveFailedNodeFromLocalChannelsTask")
        {
      public void run() {
          taskService.scheduleTask(
        new ChannelImpl.
            RemoveFailedNodeFromLocalChannelsTask(
          localNodeId, nodeId));
      }
        }, taskOwner);

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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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  implements RecoveryListener
    {
  /** {@inheritDoc} */
  public void recover(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() {
          /*
           * Reassign each failed coordinator to a new node.
           */
          taskService.scheduleTask(
        new ChannelImpl.ReassignCoordinatorsTask(
            nodeId));
          /*
           * Remove binding to channel server proxy for
           * failed node, and remove proxy's wrapper.
           */
          taskService.scheduleTask(
        new RemoveChannelServerProxyTask(nodeId));
      }
        },
        taskOwner);

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                return;
            }


      final long nodeId = node.getId();
      channelServerCache.remove(nodeId);
      final TaskService taskService = getTaskService();
      try {
    if (logger.isLoggable(Level.INFO)) {
        logger.log(Level.INFO,
             "Node:{0} handling nodeFailed:{1}",
             localNodeId, nodeId);
    }


    /*
     * Schedule persistent task to remove the failed server's node
     * ID from locally coordinated channels.
     */
    transactionScheduler.runTask(
        new AbstractKernelRunnable(
      "ScheduleRemoveFailedNodeFromLocalChannelsTask")
        {
      public void run() {
          taskService.scheduleTask(
        new ChannelImpl.
            RemoveFailedNodeFromLocalChannelsTask(
          localNodeId, nodeId));
      }
        }, taskOwner);

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  implements RecoveryListener
    {
  /** {@inheritDoc} */
  public void recover(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() {
          /*
           * Reassign each failed coordinator to a new node.
           */
          taskService.scheduleTask(
        new ChannelImpl.ReassignCoordinatorsTask(
            nodeId));
          /*
           * Remove binding to channel server proxy for
           * failed node, and remove proxy's wrapper.
           */
          taskService.scheduleTask(
        new RemoveChannelServerProxyTask(nodeId));
      }
        },
        taskOwner);

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                return;
            }


      final long nodeId = node.getId();
      channelServerCache.remove(nodeId);
      final TaskService taskService = getTaskService();
      try {
    if (logger.isLoggable(Level.INFO)) {
        logger.log(Level.INFO,
             "Node:{0} handling nodeFailed:{1}",
             localNodeId, nodeId);
    }


    /*
     * Schedule persistent task to remove the failed server's node
     * ID from locally coordinated channels.
     */
    transactionScheduler.runTask(
        new AbstractKernelRunnable(
      "ScheduleRemoveFailedNodeFromLocalChannelsTask")
        {
      public void run() {
          taskService.scheduleTask(
        new ChannelImpl.
            RemoveFailedNodeFromLocalChannelsTask(
          localNodeId, nodeId));
      }
        }, taskOwner);

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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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