private Status ExecuteApiVersion()
{
/* attempt requesting an update */
string response;
Status retval = _WebServerScripts.HttpGet(_hostName, "", 0, ActionType.GetVersion, out response, String.Empty, 1000);
/* attempt parsing */
VersionReturn general = null;
if (retval == Status.Ok)
{
try
{
general = Newtonsoft.Json.JsonConvert.DeserializeObject <VersionReturn>(response);
if (general != null)
{
/* decoded okay */
_serverVersion = general.Version;
_serverSearchDirectory = general.SearchDirectory;
}
else
{
retval = Status.CouldNotParseJson;
}
}
catch (Exception)
{
retval = Status.CouldNotParseJson;
}
}
return(retval);
}
/// <summary>
/// Service _action and update _action.Error.
/// </summary>
private Status PerformAction(out bool setStateToConnecting)
{
setStateToConnecting = false;
/* get info on this device */
byte devID = _action.deviceID;
var model = _action.model;
/* lookup device descriptor */
DeviceDescrip ddRef;
bool foundOk = _descriptors.Get(model, devID, out ddRef);
/* track the error status */
Status retval = Status.Ok;
/* temp for catching JSON responses */
string response = string.Empty;
string fileName = string.Empty;
switch (_action.type)
{
case ActionType.Blink:
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
/* perform http exchange */
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, ddRef.model, ddRef.deviceID, ActionType.Blink, out response);
}
/* parse resp */
if (retval == Status.Ok)
{
BlinkReturn jsonDeser = JsonConvert.DeserializeObject <BlinkReturn>(response);
retval = (Status)jsonDeser.GeneralReturn.Error;
}
break;
case ActionType.SelfTest:
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
/* perform http exchange */
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, ddRef.model, ddRef.deviceID, ActionType.SelfTest, out response, "", 5000);
}
/* parse resp */
if (retval == Status.Ok)
{
SelfTestReturn jsonDeser = JsonConvert.DeserializeObject <SelfTestReturn>(response);
retval = (Status)jsonDeser.GeneralReturn.Error;
if (retval == Status.Ok)
{
_action.selfTestResults = jsonDeser.SelfTest;
}
else
{
_action.selfTestResults = "Self-Test Failed";
}
}
break;
case ActionType.SetDeviceName:
/* get params for this action */
String newName = _action.stringParam;
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
/* perform http exchange */
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, ddRef.model, ddRef.deviceID, ActionType.SetDeviceName, out response, "&newname=" + newName, 2000);
}
/* parse resp */
if (retval == Status.Ok)
{
NameReturn jsonDeser = JsonConvert.DeserializeObject <NameReturn>(response);
retval = (Status)jsonDeser.GeneralReturn.Error;
}
break;
case ActionType.SetID:
/* get params for this action */
byte newId = (byte)_action.newID;
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
/* perform http exchange */
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, ddRef.model, ddRef.deviceID, ActionType.SetID, out response, "&newid=" + newId.ToString(), 2000);
}
/* parse resp */
if (retval == Status.Ok)
{
IDReturn jsonDeser = JsonConvert.DeserializeObject <IDReturn>(response);
retval = (Status)jsonDeser.GeneralReturn.Error;
}
/* if ID change was successful, update our local device list */
if (retval == Status.Ok)
{
_descriptors.ChangeID(ddRef, newId);
}
if (retval == Status.Ok)
{
/* Update device cache with new deviceID, this is important when resolving/creating device ID conflicts */
UpdateConfigs(ddRef);
}
break;
case ActionType.SetConfig:
/* Specify the filename so it's somewhat unique */
fileName = (ddRef.model + ": " + ddRef.deviceID + ".json").ToLower(); //ToLower Everything to make it parsable in URL
/* get params for this action */
string serializedData = _action.stringParam;
/* Get content payload from action */
byte[] dataBytes = System.Text.Encoding.UTF8.GetBytes(serializedData);
/* If we're using GET we need to send the file up */
if (EnableSftpTransfer)
{
_rioUpdater = new RioUpdater(_hostName);
_rioUpdater.SendFileContents(dataBytes, _serverSearchDirectory + fileName);
System.Threading.Thread.Sleep(250); //Wait a bit to make sure file got onto the RIO
}
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
/* perform http exchange */
if (retval == Status.Ok)
{
/* Decide if we're posting or getting from the _usingPost flag */
if (EnableSftpTransfer)
{
retval = _WebServerScripts.HttpGet(_hostName, ddRef.model, ddRef.deviceID, ActionType.SetConfig, out response, "&file=" + fileName, 5000);
}
else
{
retval = _WebServerScripts.HttpPost(_hostName, ddRef.model, ddRef.deviceID, ActionType.SetConfig, dataBytes, out response, 5000);
}
}
/* parse resp */
if (retval == Status.Ok)
{
SetConfigReturn jsonDeser = JsonConvert.DeserializeObject <SetConfigReturn>(response);
retval = (Status)jsonDeser.GeneralReturn.Error;
}
if (retval == Status.Ok)
{
/* Backend should immediately update device config cache */
retval = UpdateConfigs(ddRef);
}
break;
case ActionType.FieldUpgradeDevice:
/* Specify file name as generic so it gets overwritten every time */
fileName = "firmwarefile.crf";
/* If we're using POST, we don't need to send the file up */
if (EnableSftpTransfer)
{
/* Create a RioFile to be sent to the server */
RioFile file = new RioFile(_action.filePath, _serverSearchDirectory + fileName);
/* First put the files onto the RIO */
_rioUpdater = new RioUpdater(_hostName);
_rioUpdater.SendFile(file);
}
/* make a new web exchange that allows for overlapped operation */
_asyncWebExchange = new AsyncWebExchange();
/* make sure device was found in our collection */
if (retval == Status.Ok)
{
retval = (foundOk) ? Status.Ok : Status.DeviceNotFound;
}
if (retval == Status.Ok)
{
retval = ExecuteFieldUpgrade(ddRef, _asyncWebExchange, fileName, EnableSftpTransfer);
}
/* free resouces */
_asyncWebExchange.Dispose();
break;
case ActionType.InstallDiagServerToRobotController:
_rioUpdater = new RioUpdater(_hostName);
_rioUpdater.StartUpdate();
retval = Status.Ok;
setStateToConnecting = true;
break;
case ActionType.UninstallDiagServerToRobotController:
_rioUpdater = new RioUpdater(_hostName);
_rioUpdater.StartRevert();
retval = Status.Ok;
setStateToConnecting = true;
break;
case ActionType.StartServer:
_rioUpdater = new RioUpdater(_hostName);
retval = _rioUpdater.StartServer();
setStateToConnecting = true;
break;
case ActionType.StopServer:
_rioUpdater = new RioUpdater(_hostName);
retval = _rioUpdater.StopServer();
setStateToConnecting = true;
break;
/* Unit Testing Cases */
case ActionType.GetVersion: //Used for Unit Testing
VersionReturn responseClass = null;
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, "", 0, ActionType.GetVersion, out response);
}
if (retval == Status.Ok)
{
responseClass = JsonConvert.DeserializeObject <VersionReturn>(response);
retval = responseClass.Version.Equals(_action.stringParam) ? Status.Ok : Status.VersionDoesNotMatch;
}
break;
case ActionType.GetNumOfDevices:
GetDevicesReturn numDeviceReturn = null;
if (retval == Status.Ok)
{
retval = _WebServerScripts.HttpGet(_hostName, "", 0, ActionType.GetDeviceList, out response);
}
if (retval == Status.Ok)
{
numDeviceReturn = JsonConvert.DeserializeObject <GetDevicesReturn>(response);
retval = numDeviceReturn.DeviceArray.Length >= _action.param ? Status.Ok : Status.NotEnoughDevices;
}
break;
case ActionType.RebootRio:
_rioUpdater = new RioUpdater(_hostName);
retval = _rioUpdater.RebootRio();
setStateToConnecting = true;
break;
case ActionType.CheckProcess:
_rioUpdater = new RioUpdater(_hostName);
retval = _rioUpdater.CheckProcessStarted();
break;
default:
retval = Status.UnsupportedAction;
break;
}
/* callback to GUI */
_action.Error = retval;
_action.callback(_action, retval);
/* free it */
_action = null;
/* pass error to caller */
return(retval);
}
