/// <summary>
/// Recreate a SessionManager from state.
/// </summary>
/// <param name="sessionState">SessionState containing details captured from a previous SessionManager or null if no previous SessionManager.</param>
/// <param name="sampleRate">Sample rate to determine likelyhood of a new installation being tracked or not.</param>
/// <returns>Recreated SessionManager.</returns>
public SessionManager(SessionState sessionState, double sampleRate = 100.0)
{
if (sessionState != null)
{
visitor = new Visitor(sessionState.VisitorId, sessionState.FirstVisitAt);
Session = new Session(sessionState.SessionStartedAt, sessionState.SessionNumber, sessionState.SessionHitCount, sessionState.HitId);
Referrer = sessionState.Referrer;
PreviousSessionStartedAt = sessionState.PreviousSessionStartedAt;
lastActivityAt = sessionState.LastActivityAt;
SessionStatus = sessionState.SessionStatus;
VisitorStatus = sessionState.VisitorStatus;
}
else
{
var localStorage = ApplicationData.Current.LocalSettings;
Guid guid = Guid.Empty;
if (localStorage.Values.ContainsKey(guidKey) ) {
guid = (Guid)localStorage.Values[guidKey];
} else {
// Need a better way to get a unique guid
guid = Guid.NewGuid();
localStorage.Values[guidKey] = guid;
}
visitor = new Visitor(guid);
Session = new Session();
PreviousSessionStartedAt = Session.StartedAt;
SessionStatus = SessionStatus.Starting;
var willTrackThisVisitor = ShouldTrackThisNewVisitor(sampleRate);
VisitorStatus = willTrackThisVisitor ? VisitorStatus.Active : VisitorStatus.SampledOut;
if (!willTrackThisVisitor)
Debug.WriteLine("Will not track this visitor. Sampling rate of {0} excluded them", sampleRate);
}
}
public void Session_IncreaseHitCount_Increases_HitCount()
{
var session = new Session();
session.IncreaseHitCount();
session.IncreaseHitCount();
Assert.AreEqual(2, session.HitCount);
}
public void Session_Created_Started_Now()
{
var start = DateTimeOffset.Now;
var session = new Session();
var end = DateTimeOffset.Now;
Assert.IsTrue(session.StartedAt >= start, "StartedtAt too early expected after {0} found {1}", start, session.StartedAt);
Assert.IsTrue(session.StartedAt <= end, "StartedtAt too late expected before {0} found {1}", end, session.StartedAt);
}
public void Session_IncreaseHitCount_Increased_HitCount_With_Thread_Safety()
{
var session = new Session();
Task.WaitAll(
Task.Run(() => { for (var i = 0; i < 5000; i++) session.IncreaseHitCount(); }),
Task.Run(() => { for (var i = 0; i < 5000; i++) session.IncreaseHitCount(); }),
Task.Run(() => { for (var i = 0; i < 5000; i++) session.IncreaseHitCount(); }),
Task.Run(() => { for (var i = 0; i < 5000; i++) session.IncreaseHitCount(); }),
Task.Run(() => { for (var i = 0; i < 5000; i++) session.IncreaseHitCount(); })
);
Assert.AreEqual(25000, session.HitCount);
}
public void Session_Created_With_Parameters_Sets_Properties()
{
var startedAt = DateTimeOffset.Now.Subtract(new TimeSpan(1, 2, 3, 4, 5));
const int sessionNumber = 29;
const int hitCount = 101;
const int hitId = 123456;
var session = new Session(startedAt, sessionNumber, hitCount, hitId);
Assert.AreEqual(startedAt, session.StartedAt);
Assert.AreEqual(sessionNumber, session.Number);
Assert.AreEqual(hitCount, session.HitCount);
Assert.AreEqual(hitId, session.HitId);
}
/// <summary>
/// Recreate a SessionManager from state.
/// </summary>
/// <param name="timeout">How long before a session will expire if no activity is seen.</param>
/// <param name="sessionState">SessionState containing details captured from a previous SessionManager.</param>
/// <returns>Recreated SessionManager.</returns>
public SessionManager(TimeSpan timeout, SessionState sessionState)
{
this.timeout = timeout;
if (sessionState != null)
{
visitor = new Visitor(sessionState.VisitorId, sessionState.FirstVisitAt);
Session = new Session(sessionState.SessionStartedAt, sessionState.SessionNumber, sessionState.SessionHitCount, sessionState.HitId);
Referrer = sessionState.Referrer;
PreviousSessionStartedAt = sessionState.PreviousSessionStartedAt;
lastActivityAt = sessionState.LastActivityAt;
}
else
{
visitor = new Visitor();
Session = new Session();
PreviousSessionStartedAt = Session.StartedAt;
}
}
/// <summary>
/// Start a new session for this Visitor.
/// </summary>
/// <param name="startedAt">When this session started at.</param>
private void StartNewSession(DateTimeOffset startedAt)
{
lock (newSessionLock) {
PreviousSessionStartedAt = Session.StartedAt;
Session = new Session(startedAt, Session.Number + 1);
}
}
public void Session_Created_Is_Session_Number_One()
{
var session = new Session();
Assert.AreEqual(1, session.Number);
}
public void Session_Created_Has_Zero_Hits()
{
var session = new Session();
Assert.AreEqual(0, session.HitCount);
}
/// <summary>
/// Start a new session.
/// </summary>
/// <param name="startedAt">When this session started.</param>
protected void StartNewSession(DateTimeOffset startedAt)
{
lock (newSessionLock)
{
PreviousSessionStartedAt = Session.StartedAt;
Session = new Session(startedAt, Session.Number + 1);
SessionStatus = SessionStatus.Starting;
}
}