private void RaiseDemographicsEvent(BiometricData payload)
{
var handler = this.DemographicsReceived;
if (handler != null && payload != null)
{
handler(this, payload);
//This code is only for situations where you want the app to remember the user. It requires that we perform face recoginition
UserExperienceContext uec = new UserExperienceContext();
uec.Age = payload.Age;
uec.Gender = payload.Gender;
uec.FaceID = payload.FaceID;
uec.InteractionCount = 1;
if (payload.FaceMatch)
{
//Find out if we've already seen this person
var orginalUser = (from users in _userExperiences where users.FaceID == payload.FaceID select users).FirstOrDefault();
if (orginalUser == null)
{
uec.TrackingId = payload.TrackingId;
_userExperiences.Add(uec);
}
else
{
orginalUser.TrackingId = payload.TrackingId;
orginalUser.InteractionCount++;
}
}
else
{
uec.TrackingId = payload.TrackingId;
_userExperiences.Add(uec);
}
}
}
private async void ConnectionCallback(IAsyncResult asyncResult)
{
try
{
using (var pipeServer = asyncResult.AsyncState as NamedPipeServerStream) // get the pipeserver
{
if (pipeServer != null)
{
pipeServer.EndWaitForConnection(asyncResult); // finish connection
byte[] buffer = new byte[16 * 1024];
using (MemoryStream memoryStream = new MemoryStream()) // create mem stream to read in bytes from pipe stream
{
int read;
while ((read = await pipeServer.ReadAsync(buffer, 0, buffer.Length)) > 0) // read to the end of the stream
{
memoryStream.Write(buffer, 0, read); // write the bytes to memory
}
var json = GetString(memoryStream.ToArray()); // convert bytes to string
var msg = Newtonsoft.Json.JsonConvert.DeserializeObject<KioskMessage<object>>(json); // deserialize to message with object payload - payload will be a json string when <object> is used as generic type
var assembly = typeof(KioskMessage<object>).Assembly; // find the assembly where are payload types can be found
var dataType = assembly.GetType(msg.DataType); // get the type of the payload
var payload = Newtonsoft.Json.JsonConvert.DeserializeObject(msg.Data.ToString(), dataType); // deserialize the payload json to the correct type
switch (dataType.FullName) // brittle switch statements based on type string - better way?
{
case "KinectPOC.Common.Messages.Demographics":
DemographicData demographics = (DemographicData)payload;
RaiseDemographicsEvent(demographics);
UserExperienceContext uec = new UserExperienceContext();
uec.Age = ((DemographicData)payload).Age;
uec.Gender = ((DemographicData)payload).Gender;
uec.FaceID = ((DemographicData)payload).FaceID;
uec.InteractionCount = 1;
if(demographics.FaceMatch)
{
//Find out if we've already seen this person
var orginalUser = (from users in _userExperiences where users.FaceID == demographics.FaceID select users).FirstOrDefault();
if (orginalUser == null)
{
uec.TrackingId = demographics.TrackingId;
_userExperiences.Add(uec);
}
else
{
orginalUser.TrackingId = demographics.TrackingId;
orginalUser.InteractionCount++;
}
}
else
{
uec.TrackingId = demographics.TrackingId;
_userExperiences.Add(uec);
}
break;
}
}
pipeServer.Close();
}
}
var newServer = new NamedPipeServerStream(_pipeName, PipeDirection.In, 1, PipeTransmissionMode.Message, PipeOptions.Asynchronous);
newServer.BeginWaitForConnection(new AsyncCallback(ConnectionCallback), newServer);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
private async void ConnectionCallback(IAsyncResult asyncResult)
{
try
{
using (var pipeServer = asyncResult.AsyncState as NamedPipeServerStream) // get the pipeserver
{
if (pipeServer != null)
{
pipeServer.EndWaitForConnection(asyncResult); // finish connection
byte[] buffer = new byte[16 * 1024];
using (MemoryStream memoryStream = new MemoryStream()) // create mem stream to read in bytes from pipe stream
{
int read;
while ((read = await pipeServer.ReadAsync(buffer, 0, buffer.Length)) > 0) // read to the end of the stream
{
memoryStream.Write(buffer, 0, read); // write the bytes to memory
}
var json = GetString(memoryStream.ToArray()); // convert bytes to string
var msg = Newtonsoft.Json.JsonConvert.DeserializeObject <KioskMessage <object> >(json); // deserialize to message with object payload - payload will be a json string when <object> is used as generic type
var assembly = typeof(KioskMessage <object>).Assembly; // find the assembly where are payload types can be found
var dataType = assembly.GetType(msg.DataType); // get the type of the payload
var payload = Newtonsoft.Json.JsonConvert.DeserializeObject(msg.Data.ToString(), dataType); // deserialize the payload json to the correct type
switch (dataType.FullName) // brittle switch statements based on type string - better way?
{
case "KinectPOC.Common.Messages.Demographics":
DemographicData demographics = (DemographicData)payload;
RaiseDemographicsEvent(demographics);
UserExperienceContext uec = new UserExperienceContext();
uec.Age = ((DemographicData)payload).Age;
uec.Gender = ((DemographicData)payload).Gender;
uec.FaceID = ((DemographicData)payload).FaceID;
uec.InteractionCount = 1;
if (demographics.FaceMatch)
{
//Find out if we've already seen this person
var orginalUser = (from users in _userExperiences where users.FaceID == demographics.FaceID select users).FirstOrDefault();
if (orginalUser == null)
{
uec.TrackingId = demographics.TrackingId;
_userExperiences.Add(uec);
}
else
{
orginalUser.TrackingId = demographics.TrackingId;
orginalUser.InteractionCount++;
}
}
else
{
uec.TrackingId = demographics.TrackingId;
_userExperiences.Add(uec);
}
break;
}
}
pipeServer.Close();
}
}
var newServer = new NamedPipeServerStream(_pipeName, PipeDirection.In, 1, PipeTransmissionMode.Message, PipeOptions.Asynchronous);
newServer.BeginWaitForConnection(new AsyncCallback(ConnectionCallback), newServer);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
