private void ProcessSession()
{
var now = DateTime.Now;
// very firsts Session
if (ActivityState == null)
{
// create fresh activity state
ActivityState = new ActivityState();
ActivityState.SessionCount = 1; // first session
TransferSessionPackage();
ActivityState.ResetSessionAttributes(now);
ActivityState.Enabled = Enabled;
WriteActivityStateInternal();
return;
}
var lastInterval = now - ActivityState.LastActivity.Value;
if (lastInterval.Ticks < 0)
{
Logger.Error("Time Travel!");
ActivityState.LastActivity = now;
WriteActivityStateInternal();
return;
}
// new session
if (lastInterval > SessionInterval)
{
ActivityState.SessionCount++;
ActivityState.LastInterval = lastInterval;
TransferSessionPackage();
ActivityState.ResetSessionAttributes(now);
WriteActivityStateInternal();
return;
}
// new subsession
if (lastInterval > SubsessionInterval)
{
ActivityState.SubSessionCount++;
ActivityState.SessionLenght += lastInterval;
ActivityState.LastActivity = now;
WriteActivityStateInternal();
Logger.Info("Started subsession {0} of session {1}",
ActivityState.SubSessionCount, ActivityState.SessionCount);
return;
}
}
// does not close stream received. Caller is responsible to close if it wants it
internal static void SerializeToStream(Stream stream, ActivityState activity)
{
var writer = new BinaryWriter(stream);
writer.Write(activity.EventCount);
writer.Write(activity.SessionCount);
writer.Write(activity.SubSessionCount);
writer.Write(Util.SerializeTimeSpanToLong(activity.SessionLenght));
writer.Write(Util.SerializeTimeSpanToLong(activity.TimeSpent));
writer.Write(Util.SerializeDatetimeToLong(activity.LastActivity));
writer.Write(Util.SerializeDatetimeToLong(activity.CreatedAt));
writer.Write(Util.SerializeTimeSpanToLong(activity.LastInterval));
writer.Write(activity.Uuid.ToString());
writer.Write(activity.Enabled);
writer.Write(activity.AskingAttribution);
}
internal PackageBuilder(AdjustConfig adjustConfig, DeviceInfo deviceInfo, ActivityState activityState, DateTime createdAt)
: this(adjustConfig, deviceInfo, createdAt)
{
ActivityState = activityState.Clone();
}
// does not close stream received. Caller is responsible to close if it wants it
internal static ActivityState DeserializeFromStream(Stream stream)
{
ActivityState activity = null;
var reader = new BinaryReader(stream);
activity = new ActivityState();
activity.EventCount = reader.ReadInt32();
activity.SessionCount = reader.ReadInt32();
activity.SubSessionCount = reader.ReadInt32();
activity.SessionLenght = Util.DeserializeTimeSpanFromLong(reader.ReadInt64());
activity.TimeSpent = Util.DeserializeTimeSpanFromLong(reader.ReadInt64());
activity.LastActivity = Util.DeserializeDateTimeFromLong(reader.ReadInt64());
activity.CreatedAt = Util.DeserializeDateTimeFromLong(reader.ReadInt64());
activity.LastInterval = Util.DeserializeTimeSpanFromLong(reader.ReadInt64());
// create Uuid for migrating devices
activity.Uuid = Util.TryRead(() => Guid.Parse(reader.ReadString()), () => Guid.NewGuid());
// default value of IsEnabled for migrating devices
activity.Enabled = Util.TryRead(() => reader.ReadBoolean(), () => true);
// default value for AskingAttribution for migrating devices
activity.AskingAttribution = Util.TryRead(() => reader.ReadBoolean(), () => false);
return activity;
}