/// <summary>
/// Save the provided session state into the database
/// </summary>
/// <param name="sessionId">the session id of the session state to save</param>
/// <param name="session">the session state to save</param>
/// <param name="sessionTimeOut">Timeout of the session</param>
public void SaveSession(string sessionId, AspSessionContents session, int sessionTimeOut)
{
string cnx_str;
var resolver = new PartitionResolver();
cnx_str = resolver.ResolvePartition(sessionId);
using (SqlConnection conn = new SqlConnection(cnx_str))
{
using (SqlCommand saveCmd = new SqlCommand())
{
saveCmd.Connection = conn;
saveCmd.CommandText = "BEGIN TRAN;";
saveCmd.CommandText += DeleteStatement;
saveCmd.CommandText += InsertStatement;
saveCmd.CommandText += "COMMIT";
saveCmd.Parameters.AddWithValue("@SessionTimeOut", sessionTimeOut);
saveCmd.Parameters.AddWithValue("@Data", this.Serialize(session));
saveCmd.Parameters.AddWithValue("@ID", new Guid(sessionId));
try
{
conn.Open();
saveCmd.ExecuteNonQuery();
}
catch (Exception e)
{
Loggers.Logger.Error("Save Session failed : " + e.Message);
resolver.ResetConf();
throw;
}
}
}
}
/// <summary>
/// Refresh the session into the storage
/// </summary>
/// <param name="sessionId">The Id of the session to refresh</param>
public void RefreshSession(string sessionId)
{
string cnx_str;
var resolver = new PartitionResolver();
cnx_str = resolver.ResolvePartition(sessionId);
using (SqlConnection conn = new SqlConnection(cnx_str))
{
using (SqlCommand saveCmd = new SqlCommand())
{
saveCmd.Connection = conn;
saveCmd.CommandText = UpdateLastAccessedStatement;
saveCmd.Parameters.AddWithValue("@ID", new Guid(sessionId));
try
{
conn.Open();
saveCmd.ExecuteNonQuery();
}
catch (Exception e)
{
Loggers.Logger.Error("Update Session failed : " + e.Message);
resolver.ResetConf();
throw;
}
}
}
}
/// <summary>
/// Load the session state corresponding to a session id from the database
/// </summary>
/// <param name="sessionId">the session id</param>
/// <returns>the requested session state or a new one if it does not exist in the database or it is expired</returns>
public AspSessionContents LoadSession(string sessionId)
{
string cnx_str;
var resolver = new PartitionResolver();
cnx_str = resolver.ResolvePartition(sessionId);
AspSessionContents session = null;
using (SqlConnection conn = new SqlConnection(cnx_str))
{
using (SqlCommand loadCmd = new SqlCommand())
{
loadCmd.CommandText = SelectStatement;
loadCmd.Connection = conn;
loadCmd.Parameters.AddWithValue("@Id", new Guid(sessionId));
try
{
conn.Open();
using (SqlDataReader reader = loadCmd.ExecuteReader())
{
if (reader.Read())
{ // Session has not expired => deserialize it
session = this.Deserialize(reader["Data"].ToString());
session.TimeOut = int.Parse(reader["SessionTimeOut"].ToString());
}
}
}
catch (Exception e)
{
Loggers.Logger.Error("Load session failed : " + e.Message);
resolver.ResetConf();
throw;
}
}
}
return(session);
}