/// <summary>取得舊有或建立新的 CJF.Net.Http.Session 執行個體。</summary>
/// <param name="context">傳入包裝著 System.Net.HttpListenerContext 殼的執行個體。</param>
/// <param name="session">傳回已存在的 CJF.Net.Http.Session 執行個體。</param>
/// <returns>true: 找到對應的 CJF.Net.Http.Session 執行個體; false: 未找到，但已建立新的 CJF.Net.Http.Session 執行個體。</returns>
public bool GetOrCreate(HttpServiceContext context, out HttpListenerSession session)
{
var cookie = context.Request.Cookies[_cookieName];
session = null;
if (cookie != null && !cookie.Expired)
{
_sessions.TryGetValue(cookie.Value, out session);
if (session != null)
{
session.LastRequest = DateTime.Now;
}
}
if (session == null)
{
HttpListenerSession sess = new HttpListenerSession();
_sessions.AddOrUpdate(sess.ID, sess, (k, v) => v = sess);
cookie = new Cookie(_cookieName, sess.ID, "/");
context.Response.SetCookie(cookie);
context.Session = sess;
session = sess;
SessionStart?.BeginInvoke(this, context, null, null);
return(false);
}
else
{
context.Session = session;
return(true);
}
}
/// <summary>嘗試移除 CJF.Net.Http.Session 物件。</summary>
/// <param name="sessionId">Session ID</param>
/// <param name="session">傳回 CJF.Net.Http.Session 物件</param>
/// <returns>true: 已移除; false: sessionId 不存在。</returns>
public bool TryRemove(string sessionId, out HttpListenerSession session)
{
if (!_sessions.TryRemove(sessionId, out session))
{
return(false);
}
SessionEnd?.BeginInvoke(this, sessionId, null, null);
return(true);
}