private void Unlock(ObjectUnlockCommand unlockCommand)
{
if (this.state.LockOwnerId != LOCKNOOWNER && unlockCommand.LockOwnerId != LOCKNOOWNER && unlockCommand.LockOwnerId != this.state.LockOwnerId)
{
this.Log.Warning("Unlock requested from invalid owner. LockOwner {0} UnlockRequester {1}", this.state.LockOwnerId, unlockCommand.LockOwnerId);
return;
}
this.UpdateStatePersistent(unlockCommand, (cmd) =>
{
this.ForwardToArea(new ObjectCommandEnvelope(this.state.LockOwnerId, new ObjectUnlockCommand(this.state.ObjectId, this.state.LockOwnerId), this.state.ObjectId));
});
}
/// <summary>
/// Command handler. Typically validates commands against current state - possibly by communicating with other actors.
/// On successful validation, one or more events are derived from command and persisted.
/// </summary>
/// <param name="message">Message to process.</param>
/// <returns>Message is processed.</returns>
protected override bool ReceiveCommand(object message)
{
if (message is SaveSnapshotSuccess)
{
this.Log.Debug("SaveSnapshotSuccess");
}
if (message is SaveSnapshotFailure)
{
this.Log.Error("SaveSnapshotFailure");
}
if (message is RequestStateCommand)
{
this.RespondState(((RequestStateCommand)message).ReplyTo);
return(true);
}
if (message is ReceiveTimeout)
{
this.ValidateResetLock();
}
if (message is QuorumRequestEnvelope)
{
var quorumEnvelope = message as QuorumRequestEnvelope;
this.ProcessQuorumRequest(quorumEnvelope);
}
if (message is Terminated)
{
this.RemoveQuorumActor((Terminated)message);
}
if (message is ObjectCommandEnvelope)
{
var objCmd = (ObjectCommandEnvelope)message;
uint senderId = objCmd.SenderId;
if (this.state.LockOwnerId != 0 && this.state.LockOwnerId != senderId && IsLockProtectedCommand(objCmd.Command.Type))
{
this.log.Warning($"[Object:{this.state.ObjectId}] type: {objCmd.Command.Type} invalid lock owner");
return(false);
}
this.ValidateResetLock();
this.state.TimeStampLastCommand = DateTime.UtcNow;
switch (objCmd.Command.Type)
{
case CommandType.ObjectUpdatePosition:
this.UpdateStatePersistent(new ObjectUpdatePositionCommand(objCmd.Command), (cmd) => this.ForwardToArea(objCmd));
break;
case CommandType.ObjectValueUpdate:
this.UpdateStatePersistent(new ObjectValueUpdateCommand(objCmd.Command), (cmd) => this.ForwardToArea(objCmd));
break;
case CommandType.ObjectValueRemove:
this.UpdateStatePersistent(new ObjectValueRemoveCommand(objCmd.Command), (cmd) => this.ForwardToArea(objCmd));
break;
case CommandType.ObjectCreate:
ObjectCreateCommand createCmd = new ObjectCreateCommand(objCmd.Command);
this.NotifyEnterArea(senderId, Locator.GetAreaIdFromWorldPosition(this.state.WorldPosition));
this.UpdateStatePersistent(createCmd, (cmd) => this.ForwardToArea(objCmd));
break;
case CommandType.ObjectDestroy:
this.NotifyLeaveArea(Locator.GetAreaIdFromWorldPosition(this.state.WorldPosition));
this.ForwardToArea(objCmd);
this.Self.Tell(PoisonPill.Instance);
this.DeleteMessages(this.LastSequenceNr);
this.DeleteSnapshots(SnapshotSelectionCriteria.Latest);
break;
case CommandType.ObjectLock:
ObjectLockCommand lockCmd = new ObjectLockCommand(objCmd.Command);
this.Lock(lockCmd);
break;
case CommandType.ObjectUnlock:
ObjectUnlockCommand unlockCmd = new ObjectUnlockCommand(objCmd.Command);
this.Unlock(unlockCmd);
break;
default:
throw new InvalidOperationException(objCmd.Command.Type.ToString());
}
return(true);
}
if (message is NotifySubscribeObjectExistenceCommand)
{
NotifySubscribeObjectExistenceCommand cmd = (NotifySubscribeObjectExistenceCommand)message;
this.NotifyNewSubscriber(cmd.Subscriber);
}
this.SetReceiveTimeout(this.state.LockTimeout);
return(true);
}
