public PointResponse Cancel(int blockId, int pointId)
{
// This method is better because it doesn't need NHibernate
var result = new PointResponse()
{
BlockID = blockId,
PointID = pointId,
Error = false,
Message = string.Empty,
StartTime = DateTime.Now
};
if (FutureActionManager.Current.TryRemove(pointId, out PointTimer pt))
{
// Do it immediately
pt.Cancel(true);
// Cancelled timers will still execute the handler but by the time they do the corresponding
// PointTimer object will already have been removed from the timers ConcurrentDictionary, or
// Cancel will be true so when the handler is finally called at that time nothing will happen.
}
else
{
result.Error = true;
result.Message = "No pending action found to cancel";
}
return(result);
}
public PointResponse SendSetPointStateCommand(int pointId, bool state)
{
Point point = DA.Current.Single <Point>(pointId);
if (point == null)
{
throw new InvalidOperationException($"Point not found with PointID = {pointId}");
}
using (var sender = Connect(point.Block))
{
byte[] buffer = CreateSetPointStateBuffer(point, state);
Log.Write(point.Block.BlockID, $"WagoConnection: Sending SetPointState message to block: BlockID = {point.Block.BlockID}, PointID = {point.PointID}, Data = {WagoUtility.GetDataString(buffer)}");
byte[] recvBuffer = new byte[65];
int bytesRecv = SendMessageToBlock(sender, buffer, recvBuffer, false);
// the recvBuffer is not used for SetPointState because there is no response
PointResponse result = point.CreatePointResponse();
return(result);
}
}
public PointResponse SetPointState(int blockId, int pointId, bool state, uint duration = 0)
{
// This method is better because it doesn't need NHibernate
// Compose Action object
PointAction action = new PointAction(pointId, state);
// SetPointState messages do not have a return value because we do not wait for any data back from Wago like we do in GetBlockState.
// Get RequestQueue, and push data into queue
IRequestQueue queue = QueueCollection.Current.Item(blockId);
if (queue == null)
{
throw new InvalidOperationException($"Could not find queue with BlockID {blockId}");
}
// Send request for block state
queue.Push(action);
// Wait a bit for the the response to appear
PointResponse result = (PointResponse)queue.GetResponse(action.MessageID);
// When duration is zero only send one message otherwise send the first message and then send another using a Timer.
if (!result.Error && duration > 0)
{
PointAction futureAction = new PointAction(pointId, !action.State);
HandleFutureAction(queue, action, futureAction, duration);
}
return(result);
}
public static PointResponse CreatePointResponse(this Point point)
{
PointResponse result = new PointResponse
{
Error = false,
Message = string.Empty,
PointID = 0,
BlockID = 0,
StartTime = DateTime.Now
};
if (point != null)
{
result.BlockID = point.Block.BlockID;
result.PointID = point.PointID;
}
return(result);
}
