/// <summary>
/// Closes the pessimistic voter DAO's transaction,
/// if it is already open.
/// </summary>
public static void cleanUpDAO()
{
if (staticPvdao.TransactionStarted())
{
staticPvdao.EndTransaction();
}
}
public void PossitiveConcurrencyTest3()
{
PessimisticVoterDAO dao1 = new PessimisticVoterDAO(server, password);
PessimisticVoterDAO dao2 = new PessimisticVoterDAO(server, password);
this.daos = this.daos.Concat(new List <PessimisticVoterDAO> {
dao1, dao2
});
uint voter1ID = (uint)this.voters.First().PrimaryKey;
uint voter2ID = (uint)this.voters.Last().PrimaryKey;
Debug.Assert(voter1ID != voter2ID);
dao1.StartTransaction();
dao1.Read(voter1ID);
dao2.StartTransaction();
dao2.Read(voter2ID);
dao2.Update(voter2ID, true);
dao1.Update(voter1ID, true);
dao1.EndTransaction();
dao2.EndTransaction();
}
/// <summary>
/// Reacts to connection request.
/// </summary>
private void ReactToConnectRequest(object o, EventArgs e)
{
SetupInfo setupInfo = new SetupInfo(); //The setup info to be checked and then updated to the setup info in model if valid.
setupInfo.Ip = view.SetupWindow.IpTextBox;
uint result;
bool res = uint.TryParse(view.SetupWindow.TableBox, out result);
if (!res)
{
view.ShowMessageBox("Table number cannot be negative");
return;
}
setupInfo.TableNo = uint.Parse(view.SetupWindow.TableBox);
if (setupInfo.Ip.Length == 0)
{
view.ShowMessageBox("Please type in the target connection");
return;
}
string password = view.SetupWindow.Password; //Password from setup window to be tested.
try
{
//Tests inf there is a connection to the voter box.
PessimisticVoterDAO pvdao = new PessimisticVoterDAO(setupInfo.Ip, password);
pvdao.StartTransaction();
pvdao.EndTransaction();
}
catch (Exception e1)
{
if (e1.Message.Contains("Access"))
{
view.ShowMessageBox("Incorrect password");
return;
}
if (e1.Message.Contains("connect"))
{
view.ShowMessageBox("No connection to server. Please check connection or target address.");
return;
}
}
//feed the model with setup information.
model.SetupInfo = setupInfo;
model.AdminPass = password;
//Tries to write setup information to the setup.conf file.
try
{
model.WriteToConfig();
}
catch (Exception e2)
{
view.ShowMessageBox("unable to write to config file. " + e2.StackTrace);
}
view.SetupWindow.Hide();
view.ScannerWindow.Show();
}
public void PositiveConcurrencyTest()
{
PessimisticVoterDAO dao1 = new PessimisticVoterDAO(server, password);
PessimisticVoterDAO dao2 = new PessimisticVoterDAO(server, password);
this.daos = this.daos.Concat(new List <PessimisticVoterDAO> {
dao1, dao2
});
uint voterID = (uint)this.voters.First().PrimaryKey;
dao1.StartTransaction();
dao1.Read(voterID);
dao1.EndTransaction();
dao2.StartTransaction();
dao2.Read(voterID);
dao2.EndTransaction();
}
public void PositiveConcurrencyTest2()
{
PessimisticVoterDAO dao1 = new PessimisticVoterDAO(server, password);
PessimisticVoterDAO dao2 = new PessimisticVoterDAO(server, password);
this.daos = this.daos.Concat(new List<PessimisticVoterDAO> { dao1, dao2 });
uint voterID = (uint)this.voters.First().PrimaryKey;
dao1.StartTransaction();
dao1.Read(voterID);
dao1.Update(voterID, true);
dao1.EndTransaction();
dao2.StartTransaction();
dao2.Read(voterID);
dao2.EndTransaction();
}
