Examples of com.orientechnologies.orient.server.distributed.task.OAbstractRemoteTask

Package com.orientechnologies.orient.server.distributed.task

Examples of com.orientechnologies.orient.server.distributed.task.OAbstractRemoteTask

com.orientechnologies.orient.server.distributed.task.OAbstractRemoteTask
Base class for Tasks to be executed remotely. @author Luca Garulli (l.garulli--at--orientechnologies.com)

   */
  protected void onMessage(final ODistributedRequest iRequest) {
    OScenarioThreadLocal.INSTANCE.set(OScenarioThreadLocal.RUN_MODE.RUNNING_DISTRIBUTED);


    try {
      final OAbstractRemoteTask task = iRequest.getTask();


      if (ODistributedServerLog.isDebugEnabled())
        ODistributedServerLog.debug(this, manager.getLocalNodeName(), iRequest.getSenderNodeName(), DIRECTION.OUT,
            "received request: %s", iRequest);


      // EXECUTE IT LOCALLY
      final Serializable responsePayload;
      OUser origin = null;
      try {
        if (task.isRequiredOpenDatabase())
          initDatabaseInstance();


        ODatabaseRecordThreadLocal.INSTANCE.set(database);


        task.setNodeSource(iRequest.getSenderNodeName());


        // keep original user in database, check the username passed in request and set new user in DB, after document saved, reset
        // to original user
        if (database != null) {
          origin = database.getUser();

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   protected void undoRequest() {
     for (ODistributedResponse r : getReceivedResponses()) {
       ODistributedServerLog.warn(this, dManager.getLocalNodeName(), null, DIRECTION.NONE,
           "sending undo message for request (%s) to server %s", request, r.getExecutorNodeName());


       final OAbstractRemoteTask task = request.getTask();
       if (task instanceof OAbstractReplicatedTask) {
         final OAbstractRemoteTask undoTask = ((OAbstractReplicatedTask) task).getUndoTask(request, r.getPayload());


         if (undoTask != null)
           dManager.sendRequest(request.getDatabaseName(), null, Collections.singleton(r.getExecutorNodeName()), undoTask,
               ODistributedRequest.EXECUTION_MODE.NO_RESPONSE);
       }

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         // CONFLICT GROUP: FIX THEM ONE BY ONE
         for (ODistributedResponse r : responseGroup) {
           ODistributedServerLog.warn(this, dManager.getLocalNodeName(), null, DIRECTION.NONE,
               "fixing response for request (%s) in server %s to be: %s", request, r.getExecutorNodeName(), goodResponse);


           final OAbstractRemoteTask fixTask = ((OAbstractReplicatedTask) request.getTask()).getFixTask(request, r.getPayload(),
               goodResponse.getPayload());


           if (fixTask != null)
             dManager.sendRequest(request.getDatabaseName(), null, Collections.singleton(r.getExecutorNodeName()), fixTask,
                 ODistributedRequest.EXECUTION_MODE.NO_RESPONSE);

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  public Serializable executeOnLocalNode(final ODistributedRequest req, final ODatabaseDocumentTx database) {
    if (database != null && !(database.getStorage() instanceof ODistributedStorage))
      throw new ODistributedException("Distributed storage was not installed for database '" + database.getName()
          + "'. Implementation found: " + database.getStorage().getClass().getName());


    final OAbstractRemoteTask task = req.getTask();


    try {
      if (database != null)
        ((ODistributedStorage) database.getStorage()).setLastOperationId(req.getId());


      final Serializable result = (Serializable) task.execute(serverInstance, this, database);


      if (result instanceof Throwable)
        ODistributedServerLog.error(this, getLocalNodeName(), req.getSenderNodeName(), DIRECTION.IN,
            "error on executing request %d (%s) on local node: ", (Throwable) result, req.getId(), req != null ? req.getTask()
                : "-");

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Related Classes of com.orientechnologies.orient.server.distributed.task.OAbstractRemoteTask

com.orientechnologies.orient.server.distributed.ODistributedResponseManager

com.orientechnologies.orient.server.hazelcast.ODistributedWorker

com.orientechnologies.orient.server.hazelcast.OHazelcastPlugin

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