private void SendRequest(ResourceMessage request)
{
if (m_gatewaySocket == null || m_gatewaySocket.ReadyState == WebSocketState.Closed)
{
Connect();
}
m_gatewaySocket.Send(JsonConvert.SerializeObject(request));
}
private ResourceMessage CreateDefaultResponse(string message)
{
var response = new ResourceMessage()
{
Command = "default",
Data = message,
SenderGuid = m_serverGuid.ToString(),
RequestGuid = Guid.NewGuid().ToString()
};
return(response);
}
private void SendPushMessage(IResource resource, string resData)
{
var message = new ResourceMessage()
{
Command = "push-response",
Data = resData,
DataType = resource.GetResourceDataType(),
DataUnits = resource.GetResourceDataUnits(),
SenderGuid = resource.Guid.ToString()
};
Send(JsonConvert.SerializeObject((message)));
}
public static void Test()
{
var gwsc = new GatewaySocketClient("ws://localhost:9300/resources");
gwsc.Connect();
var request = new ResourceMessage()
{
Command = "get",
SenderGuid = Guid.NewGuid().ToString(),
TargetGuid = (new Guid("e16c519e-d5f1-494d-b1ba-ed546a6bf199")).ToString()
};
gwsc.SendRequest(request);
}
private ResourceMessage CreateResponse(IResource r, string id)
{
var response = new ResourceMessage()
{
Command = "response",
// Resources that are write-only (e.g. most actuators) will return nothing here
Data = r.GetResourceData(),
DataType = r.GetResourceDataType(),
DataUnits = r.GetResourceDataUnits(),
SenderGuid = r.Guid.ToString(),
RequestGuid = id
};
return(response);
}
public Guid SendSetCommunicationMode(Guid resourceId, CommunicationMode mode)
{
var requestGuid = Guid.NewGuid();
var request = new ResourceMessage()
{
Command = "mode",
Data = mode.ToString().ToLower(),
TargetGuid = resourceId.ToString(),
SenderGuid = m_clientId.ToString(),
RequestGuid = requestGuid.ToString()
};
SendRequest(request);
return(requestGuid);
}
private void HandleModeChangeRequest(ResourceMessage message)
{
var newMode = message.Data;
var resource = m_boundResources.Where(r => r.Guid == Guid.Parse(message.TargetGuid)).First();
if (newMode == "push" && resource.CommunicationMode == CommunicationMode.Poll)
{
resource.OnDataChanged += OnResourceDataChanged;
resource.CommunicationMode = CommunicationMode.Push;
}
else if (newMode == "poll" && resource.CommunicationMode == CommunicationMode.Push)
{
resource.OnDataChanged -= OnResourceDataChanged;
resource.CommunicationMode = CommunicationMode.Poll;
}
}
public Guid SendGetResourceDataRequest(Guid resourceId, INotifiableRequester sender)
{
Guid requestGuid = Guid.NewGuid();
var request = new ResourceMessage()
{
Command = "get",
SenderGuid = m_clientId.ToString(),
TargetGuid = resourceId.ToString(),
RequestGuid = requestGuid.ToString(),
};
m_requestList.Add(requestGuid, new Request {
Id = requestGuid, Sender = sender
});
SendRequest(request);
return(requestGuid);
}
private ResourceMessage PerformRequest(ResourceMessage request)
{
var resourceGuid = new Guid(request.TargetGuid);
var resource = GetResourceByGuid(resourceGuid);
if (resource != null && resource.IsInitialized)
{
if (request.Command.Contains("set"))
{
resource.SetResourceData(request.Data);
}
else if (request.Command.Contains("mode"))
{
HandleModeChangeRequest(request);
return(CreateDefaultResponse("OK"));
}
return(CreateResponse(resource, request.RequestGuid));
}
else
{
return(CreateDefaultResponse(String.Format("No resource with guid: '{0}' exists.", request.TargetGuid.ToString())));
}
}
