/// <summary>Send Notification to Ground App, specific to Element Id.</summary>
/// <param name="requestId">The RequestId for the corresponding request.</param>
/// <param name="pStatus">Status : Completed/Failed/Processing.</param>
/// <param name="pElementId">The concerned ElementId.</param>
public static void SendElementIdNotificationToGroundApp(string requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum pStatus, string pElementId)
{
//String.Format(CultureInfo.CurrentCulture, Logs.INFO_NOTIFICATIONTOAPPGROUND, pElementId, requestId, pStatus)
LogManager.WriteLog(TraceType.INFO, String.Format(CultureInfo.CurrentCulture, Logs.INFO_NOTIFICATIONTOAPPGROUND, pElementId, requestId, pStatus), "PIS.Ground.DataPackage.LiveVideoControl.sendElementIdNotificationToGroundApp", null, EventIdEnum.LiveVideoControl);
try
{
// serialize ElementId.
System.Xml.Serialization.XmlSerializer xmlSzr = new System.Xml.Serialization.XmlSerializer(typeof(string));
StringWriter lstr = new StringWriter();
xmlSzr.Serialize(lstr, pElementId);
LiveVideoControlService.SendNotificationToGroundApp(new Guid(requestId), pStatus, lstr.ToString());
}
catch (FormatException)
{
// serialize ElementId.
System.Xml.Serialization.XmlSerializer xmlSzr = new System.Xml.Serialization.XmlSerializer(typeof(string));
StringWriter lstr = new StringWriter();
xmlSzr.Serialize(lstr, pElementId);
LiveVideoControlService.SendNotificationToGroundApp(Guid.Empty, pStatus, lstr.ToString());
}
catch (Exception ex)
{
LogManager.WriteLog(
TraceType.ERROR,
ex.Message,
"PIS.Ground.LiveVideoControl.LiveVideoControlService.sendNotificationToGroundApp",
ex,
EventIdEnum.DataPackage);
}
}
private static void SendStartStreamingCommandToProperStatusElements(string url)
{
try
{
// Get the list of all currently available trains
ElementList <AvailableElementData> elements = new ElementList <AvailableElementData>();
T2GManagerErrorEnum rqstResult = _t2gManager.GetAvailableElementDataList(out elements);
switch (rqstResult)
{
case T2GManagerErrorEnum.eSuccess:
// Send notification to all clients
LiveVideoControlService.SendNotificationToGroundApp(
Guid.Empty,
PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlAutomaticMode,
url);
// Send a start command to each train that is online and in mission
foreach (AvailableElementData element in elements)
{
TargetAddressType target = new TargetAddressType();
target.Type = AddressTypeEnum.Element;
target.Id = element.ElementNumber;
_dicVideoHistory[target] = url;
_dicVideoHistorySentService[target] = null;
if (element.OnlineStatus == true && element.MissionState == MissionStateEnum.MI)
{
ServiceInfo availableService;
if (_t2gManager.GetAvailableServiceData(element.ElementNumber, (int)eServiceID.eSrvSIF_LiveVideoControlServer, out availableService) == T2GManagerErrorEnum.eSuccess)
{
_dicVideoHistorySentService[target] = availableService;
}
SendStartStreamingCommand(Guid.Empty, target, url);
}
}
break;
case T2GManagerErrorEnum.eT2GServerOffline:
LogManager.WriteLog(TraceType.ERROR, "T2G Server: Offline",
"PIS.Ground.LiveVideoControl.LiveVideoControlService.ProcessAutomaticMode",
null, EventIdEnum.LiveVideoControl);
break;
default:
LogManager.WriteLog(TraceType.ERROR, "Element not found",
"PIS.Ground.LiveVideoControl.LiveVideoControlService.ProcessAutomaticMode", null, EventIdEnum.LiveVideoControl);
break;
}
}
catch (System.Exception exception)
{
LogManager.WriteLog(TraceType.EXCEPTION, exception.Message,
"PIS.Ground.LiveVideoControl.LiveVideoControlService.ProcessAutomaticMode", exception, EventIdEnum.LiveVideoControl);
}
}
/// <summary>Command to select the automatic or manual starting mode for the video streaming.
/// If the specified URL is empty or null, manual mode is selected.
/// Otherwise, automatic mode is selected</summary>
/// <param name="sessionId">Identifier for the session.</param>
/// <param name="url">URL of the stream to be used in automatic mode.</param>
/// <returns>Return statement of the request (Success, failed,...) with URL and request id.</returns>
LiveVideoControlResult ILiveVideoControlService.ChangeCommandMode(Guid sessionId, string url)
{
LiveVideoControlResult result = new LiveVideoControlResult();
result.RequestId = Guid.Empty;
result.ResultCode = LiveVideoControlErrorEnum.InternalError;
if (_sessionManager.IsSessionValid(sessionId))
{
// Checking if the specified url contains an non empty string
if (string.IsNullOrEmpty(url) || url.Trim().Length == 0)
{
// If empty url, it means we want to clear the automatic mode
if (ClearAutomaticMode())
{
// Notify all clients that we are entering the manual mode
LiveVideoControlService.SendNotificationToGroundApp(
Guid.Empty,
PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlManualMode,
null);
}
result.ResultCode = LiveVideoControlErrorEnum.RequestAccepted;
}
else
{
// If non empty url, it means we want to enter the automatic mode
lock (_automaticModeLock)
{
if (SetAutomaticMode(url))
{
// Send notifications and start commands
result = ProcessAutomaticMode(url);
// If the command failed, restore the manual mode
if (result.ResultCode != LiveVideoControlErrorEnum.RequestAccepted)
{
ClearAutomaticMode();
}
}
else
{
// We are already in automatic mode. Get the current url used.
string currentAutomaticURL;
GetAutomaticMode(out currentAutomaticURL);
result.Url = currentAutomaticURL;
result.ResultCode = LiveVideoControlErrorEnum.AutomaticModeActivated;
}
}
}
}
else
{
result.ResultCode = LiveVideoControlErrorEnum.InvalidSessionId;
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="NotificationGroundService"/> class.
/// </summary>
public NotificationGroundService()
{
if (Thread.CurrentThread.Name == null)
{
Thread.CurrentThread.Name = "LiveVideo.NotificationGroundService";
}
LiveVideoControlService.Initialize();
}
/// <summary>Sends a video streaming status request.</summary>
/// <param name="requestId">Request ID for the corresponding request.</param>
private static void SendVideoStreamingStatusRequest(Guid requestId)
{
ElementList <AvailableElementData> availableElementData = new ElementList <AvailableElementData>();
T2GManagerErrorEnum result = _t2gManager.GetAvailableElementDataList(out availableElementData);
switch (result)
{
case T2GManagerErrorEnum.eSuccess:
foreach (AvailableElementData element in availableElementData)
{
ServiceInfo serviceInfo;
result = _t2gManager.GetAvailableServiceData(element.ElementNumber, (int)eServiceID.eSrvSIF_LiveVideoControlServer, out serviceInfo);
switch (result)
{
case T2GManagerErrorEnum.eSuccess:
ProcessSendVideoStreamingStatusRequestContext request = new ProcessSendVideoStreamingStatusRequestContext(
element.ElementNumber,
requestId,
serviceInfo);
_requestProcessor.AddRequest(request);
break;
case T2GManagerErrorEnum.eT2GServerOffline:
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlT2GServerOffline, string.Empty);
break;
case T2GManagerErrorEnum.eElementNotFound:
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlElementNotFound, element.ElementNumber);
break;
case T2GManagerErrorEnum.eServiceInfoNotFound:
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlServiceNotFound, element.ElementNumber);
break;
default:
break;
}
}
break;
case T2GManagerErrorEnum.eT2GServerOffline:
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlT2GServerOffline, string.Empty);
break;
default:
break;
}
}
/// <summary>
/// LiveVideoControlService Web service method "StopVideoStreamingCommand" that cancels all
/// predefined and free-text messages at addressee.
/// </summary>
/// <param name="sessionId">The session identifier.</param>
/// <param name="targetAddress">Addressee information.</param>
/// <returns>Response <see cref="LiveVideoControlResult"/>.</returns>
LiveVideoControlResult ILiveVideoControlService.StopVideoStreamingCommand(
Guid sessionId,
TargetAddressType targetAddress)
{
LiveVideoControlResult result = new LiveVideoControlResult();
result.RequestId = Guid.Empty;
result.ResultCode = LiveVideoControlErrorEnum.RequestAccepted;
_dicVideoHistory.Remove(targetAddress);
_dicVideoHistorySentService.Remove(targetAddress);
if (_sessionManager.IsSessionValid(sessionId))
{
string automaticModeURL;
if (GetAutomaticMode(out automaticModeURL) == false)
{
Guid requestId = Guid.Empty;
string error = _sessionManager.GenerateRequestID(sessionId, out requestId);
if (requestId != Guid.Empty)
{
ElementList <AvailableElementData> elements;
T2GManagerErrorEnum rqstResult = _t2gManager.GetAvailableElementDataByTargetAddress(targetAddress, out elements);
switch (rqstResult)
{
case T2GManagerErrorEnum.eSuccess:
{
List <RequestContext> newRequests = new List <RequestContext>();
foreach (AvailableElementData element in elements)
{
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlDistributionProcessing, element.ElementNumber);
ProcessStopVideoStreamingCommandRequestContext request = new ProcessStopVideoStreamingCommandRequestContext(
element.ElementNumber,
requestId,
sessionId);
newRequests.Add(request);
}
_requestProcessor.AddRequestRange(newRequests);
result.RequestId = requestId;
result.ResultCode = LiveVideoControlErrorEnum.RequestAccepted;
}
break;
case T2GManagerErrorEnum.eT2GServerOffline:
result.ResultCode = LiveVideoControlErrorEnum.T2GServerOffline;
break;
case T2GManagerErrorEnum.eElementNotFound:
result.ResultCode = LiveVideoControlService.GetInvalidTargetAddressResponse(targetAddress);
break;
default:
break;
}
}
else
{
LogManager.WriteLog(TraceType.ERROR, error, "PIS.Ground.LiveVideoControl.LiveVideoControlService.StopVideoStreamingCommand", null, EventIdEnum.LiveVideoControl);
result.ResultCode = LiveVideoControlErrorEnum.InvalidRequestID;
}
}
else
{
result.Url = automaticModeURL;
result.ResultCode = LiveVideoControlErrorEnum.AutomaticModeActivated;
}
}
else
{
result.ResultCode = LiveVideoControlErrorEnum.InvalidSessionId;
}
return(result);
}
/// <summary>Sends a start streaming command.</summary>
/// <param name="sessionId">The session identifier.</param>
/// <param name="targetAddress">Addressee information.</param>
/// <param name="url">The streaming URL to be used.</param>
/// <returns>Response <see cref="LiveVideoControlElementListResult"/>.</returns>
private static LiveVideoControlResult SendStartStreamingCommand(
Guid sessionId,
TargetAddressType targetAddress,
string url)
{
LiveVideoControlResult result = new LiveVideoControlResult();
result.RequestId = Guid.Empty;
result.ResultCode = LiveVideoControlErrorEnum.InternalError;
Guid requestId = Guid.Empty;
string error;
if (sessionId != Guid.Empty)
{
error = _sessionManager.GenerateRequestID(sessionId, out requestId);
}
else
{
error = _sessionManager.GenerateRequestID(out requestId);
}
if (requestId != Guid.Empty)
{
ElementList <AvailableElementData> elements;
T2GManagerErrorEnum rqstResult = _t2gManager.GetAvailableElementDataByTargetAddress(targetAddress, out elements);
switch (rqstResult)
{
case T2GManagerErrorEnum.eSuccess:
Guid notificationRequestId = requestId;
List <RequestContext> newRequests = new List <RequestContext>();
foreach (AvailableElementData element in elements)
{
if (_dicVideoHistorySentService.ContainsKey(targetAddress))
{
ServiceInfo availableService;
if (_t2gManager.GetAvailableServiceData(element.ElementNumber, (int)eServiceID.eSrvSIF_LiveVideoControlServer, out availableService) == T2GManagerErrorEnum.eSuccess)
{
_dicVideoHistorySentService[targetAddress] = availableService;
}
}
LiveVideoControlService.SendNotificationToGroundApp(requestId, PIS.Ground.GroundCore.AppGround.NotificationIdEnum.LiveVideoControlDistributionProcessing, element.ElementNumber);
ProcessStartVideoStreamingCommandRequestContext request = new ProcessStartVideoStreamingCommandRequestContext(
element.ElementNumber,
requestId,
sessionId,
url);
newRequests.Add(request);
}
_requestProcessor.AddRequestRange(newRequests);
result.RequestId = requestId;
result.ResultCode = LiveVideoControlErrorEnum.RequestAccepted;
break;
case T2GManagerErrorEnum.eT2GServerOffline:
LogManager.WriteLog(TraceType.ERROR, "T2G Offline", "PIS.Ground.LiveVideoControl.LiveVideoControlService.SendStartStreamingCommand", null, EventIdEnum.LiveVideoControl);
result.ResultCode = LiveVideoControlErrorEnum.T2GServerOffline;
break;
case T2GManagerErrorEnum.eElementNotFound:
LogManager.WriteLog(TraceType.ERROR, "Element not found", "PIS.Ground.LiveVideoControl.LiveVideoControlService.SendStartStreamingCommand", null, EventIdEnum.LiveVideoControl);
result.ResultCode = LiveVideoControlService.GetInvalidTargetAddressResponse(targetAddress);
break;
default:
LogManager.WriteLog(TraceType.ERROR, "Problem looking for an element. T2GClient returned: " + rqstResult.ToString(),
"PIS.Ground.LiveVideoControl.LiveVideoControlService.SendStartStreamingCommand", null, EventIdEnum.LiveVideoControl);
result.ResultCode = LiveVideoControlErrorEnum.InternalError;
break;
}
}
else
{
LogManager.WriteLog(TraceType.ERROR, error, "PIS.Ground.LiveVideoControl.LiveVideoControlService.SendStartStreamingCommand", null, EventIdEnum.LiveVideoControl);
result.ResultCode = LiveVideoControlErrorEnum.InvalidRequestID;
}
return(result);
}
/// <summary>LiveVideoControlService web service method "GetAvailableElementList".</summary>
/// <param name="sessionId">The session identifier.</param>
/// <returns>Response <see cref="LiveVideoControlElementListResult"/>.</returns>
LiveVideoControlElementListResult ILiveVideoControlService.GetAvailableElementList(Guid sessionId)
{
LiveVideoControlElementListResult lResult = new LiveVideoControlElementListResult();
lResult.ResultCode = LiveVideoControlErrorEnum.ElementListNotAvailable;
if (LiveVideoControlService._sessionManager.IsSessionValid(sessionId))
{
// Get the list of all trains
//
ElementList <AvailableElementData> lElementList;
T2GManagerErrorEnum lT2GResult = _t2gManager.GetAvailableElementDataList(out lElementList);
if (lT2GResult == T2GManagerErrorEnum.eSuccess)
{
var lLiveVideoServiceElementList = new ElementList <AvailableElementData>();
ServiceInfo lServiceInfo;
bool lT2GDisconnection = false;
// For each train...
//
foreach (AvailableElementData lElement in lElementList)
{
// ...get information related to the live video streaming service
//
lT2GResult = _t2gManager.GetAvailableServiceData(lElement.ElementNumber,
(int)eServiceID.eSrvSIF_LiveVideoControlServer, out lServiceInfo);
switch (lT2GResult)
{
case T2GManagerErrorEnum.eSuccess:
// If the streaming service is provided...
//
if (lServiceInfo.IsAvailable)
{
// ...add the train to the streaming service elements list
lLiveVideoServiceElementList.Add(lElement);
}
break;
case T2GManagerErrorEnum.eT2GServerOffline:
lT2GDisconnection = true;
break;
default:
break;
}
// Since we need T2G to build the list of streaming service elements...
if (lT2GDisconnection)
{
// ...stop wasting time and return immediately
lResult.ResultCode = LiveVideoControlErrorEnum.T2GServerOffline;
break;
}
}
if (!lT2GDisconnection)
{
// In case of success, return the list of train(s) that provide video steaming service
//
lResult.ElementList = lLiveVideoServiceElementList;
lResult.ResultCode = LiveVideoControlErrorEnum.RequestAccepted;
}
else
{
lResult.ResultCode = LiveVideoControlErrorEnum.T2GServerOffline;
}
}
else
{
lResult.ResultCode = LiveVideoControlErrorEnum.ElementListNotAvailable;
}
if (false == LiveVideoControlService._statusRequestedSessions.Contains(sessionId))
{
LiveVideoControlService._statusRequestedSessions.Add(sessionId);
LiveVideoControlService._delegate(sessionId);
}
}
else
{
lResult.ResultCode = LiveVideoControlErrorEnum.InvalidSessionId;
}
return(lResult);
}
/// <summary>Sends a notification.</summary>
/// <param name="request">The input request.</param>
/// <returns>An empty response.</returns>
public SendNotificationResponse SendNotification(SendNotificationRequest request)
{
LiveVideoControlService.SendElementIdNotificationToGroundApp(request.RequestId, (PIS.Ground.GroundCore.AppGround.NotificationIdEnum)request.NotificationId, request.ElementId);
return(new SendNotificationResponse()); // Always an empty response
}