private LockTransactionResult executeLockTransaction(LockSessionData session, LockTransaction transaction)
{
if (!Running)
{
return(LockTransactionResult.CallFailed);
}
Interlocked.Increment(ref m_CurrentServerCalls);
if (session == null || transaction == null)
{
throw new LockingException(StringConsts.ARGUMENT_ERROR + GetType().Name + ".ExecuteLockTransaction(session|transaction==null)");
}
var isPing = transaction.Statements == null;
if (!isPing && transaction.Namespace.IsNullOrWhiteSpace())
{
throw new LockingException(StringConsts.ARGUMENT_ERROR + GetType().Name + ".ExecuteLockTransaction(transaction.Namespace==null|empty)");
}
var currentTrustLevel = CurrentTrustLevel;
var appRunTimeSec = (uint)(DateTime.UtcNow - m_StartTimeUTC).TotalSeconds;
//insufficient runtime period length or trust level
if (transaction.MinimumRequiredRuntimeSec > appRunTimeSec ||
transaction.MinimumRequiredTrustLevel > currentTrustLevel)
{
return(new LockTransactionResult(transaction.ID,
AgniSystem.HostName,
LockStatus.TransactionError,
LockErrorCause.MinimumRequirements,
null,
appRunTimeSec,
currentTrustLevel,
null));
}
var sid = session.ID.ToString();
var ss = m_Sessions.GetOrRegister(sid, (sd) => new ServerLockSession(sd), session);
lock (ss)
{
if (ss.Disposed)
{
return(new LockTransactionResult(transaction.ID,
AgniSystem.HostName,
LockStatus.TransactionError,
LockErrorCause.SessionExpired,
null,
appRunTimeSec,
currentTrustLevel,
null));
}
ss.m_LastInteractionUTC = App.TimeSource.UTCNow;
if (isPing)//ping just touches session above
{
return(new LockTransactionResult(transaction.ID,
AgniSystem.HostName,
LockStatus.TransactionOK,
LockErrorCause.Unspecified,
null,
appRunTimeSec,
currentTrustLevel,
null));
}
var ns = m_Namespaces.GetOrRegister <object>(transaction.Namespace, (_) => new Namespace(transaction.Namespace), null);
var ectx = new EvalContext(ss, ns, transaction);
prepareTransaction(ectx); //prepare is not under the lock
LockTransactionResult result;
lock (ns) //execute is UNDER THE LOCK
result = executeTransaction(ectx, appRunTimeSec, currentTrustLevel);
return(result);
}
}
internal EvalContext(ServerLockSession session, Namespace ns, LockTransaction tran)
{
Session = session;
Namespace = ns;
Transaction = tran;
}
public void T25()
{
var set1 = new LockTransaction("Testing 101", "B", 0, 0.0d,
LockOp.Assert(LockOp.SetVar("Doctor", "Sbaitso", "data{ age=23}", "Description 1", allowDuplicates: true))
);
var set2 = new LockTransaction("Testing 101", "B", 0, 0.0d,
LockOp.Assert(LockOp.SetVar("Doctor", "Sbaitso", "data{ score=3489}", "Description 1", allowDuplicates: true)),
LockOp.Assert(LockOp.SetVar("Doctor", "Lector", "zhaba", "Description 3", allowDuplicates: true))
);
var sessionSetter1 = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
var sessionSetter2 = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
var sessionGetter = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
var result = m_Server.ExecuteLockTransaction(sessionSetter1, set1);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
result = m_Server.ExecuteLockTransaction(sessionSetter2, set2);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
var get = new LockTransaction("Testing 101", "B", 0, 0.0d,
LockOp.SelectVarValue("A", "Doctor", "Sbaitso", selectMany: true)
);
result = m_Server.ExecuteLockTransaction(sessionGetter, get);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
var v = result["A"] as Agni.Locking.Server.Variable[];
Aver.IsNotNull(v);
Aver.AreEqual(2, v.Length);
Console.WriteLine(v[0].Value);
Aver.AreEqual(23, v[0].Value.AsLaconicConfig().AttrByName("age").ValueAsInt());
Aver.AreEqual(3489, v[1].Value.AsLaconicConfig().AttrByName("score").ValueAsInt());
var del1 = new LockTransaction("Testing 101", "B", 0, 0.0d,
LockOp.Assert(LockOp.DeleteVar("Doctor", "Sbaitso", "data{ age=12111113}"))
);
result = m_Server.ExecuteLockTransaction(sessionSetter1, del1);
Aver.IsTrue(LockStatus.TransactionError == result.Status); //because DATA does not match
Aver.IsTrue(LockErrorCause.Statement == result.ErrorCause);
result = m_Server.ExecuteLockTransaction(sessionGetter, get);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
v = result["A"] as Agni.Locking.Server.Variable[];
Aver.IsNotNull(v);
Aver.AreEqual(2, v.Length);
Console.WriteLine(v[0].Value);
Aver.AreEqual(23, v[0].Value.AsLaconicConfig().AttrByName("age").ValueAsInt());
Aver.AreEqual(3489, v[1].Value.AsLaconicConfig().AttrByName("score").ValueAsInt());
del1 = new LockTransaction("Testing 101", "B", 0, 0.0d,
LockOp.Assert(LockOp.DeleteVar("Doctor", "Sbaitso", null))
);
//Reexecute delet from setter2, it shpould only remove what he has set keeping setters'1 data
result = m_Server.ExecuteLockTransaction(sessionSetter2, del1);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
result = m_Server.ExecuteLockTransaction(sessionGetter, get);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
//Setters'1 data is still here, but setter's2 is gone
v = result["A"] as Agni.Locking.Server.Variable[];
Aver.IsNotNull(v);
Aver.AreEqual(1, v.Length);
Console.WriteLine(v[0].Value);
Aver.AreEqual(23, v[0].Value.AsLaconicConfig().AttrByName("age").ValueAsInt());
}
public LockTransactionResult ExecuteLockTransaction(LockSessionData session, LockTransaction transaction) => Service.Locker.ExecuteLockTransaction(session, transaction);
public void T19()
{
var set1 = new LockTransaction("Testing 101", "A", 0, 0.0d,
LockOp.Assert(LockOp.SetVar("Patient", "Barkhan1", null, "Oleg Petrovich Barkharev"))
);
var set2 = new LockTransaction("Testing 101", "A", 0, 0.0d,
LockOp.Assert(LockOp.SetVar("Patient", "buloch1970", null, "S***n Genadievich Bulochkin"))
);
var session1 = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
var session2 = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
var session3 = new Agni.Locking.Server.LockSessionData(new LockSessionID(null), "My session", 1000);
//1st user
var result = m_Server.ExecuteLockTransaction(session1, set1);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
//2nd user
result = m_Server.ExecuteLockTransaction(session2, set2);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
var exists = new LockTransaction("Testing 101", "A", 0, 0.0d,
LockOp.Assert(
LockOp.And
(
LockOp.Exists("Patient", "Barkhan1"),
LockOp.Exists("Patient", "buloch1970")
)
));
//3rd user sees what the first two have set
result = m_Server.ExecuteLockTransaction(session3, exists);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
var delete = new LockTransaction("Testing 101", "A", 0, 0.0d,
LockOp.Assert(
LockOp.DeleteVar("Patient", "Barkhan1", null)
));
//2nd user wants to delete what the 1st set, CANT
result = m_Server.ExecuteLockTransaction(session2, delete);
Aver.IsTrue(LockStatus.TransactionError == result.Status);
Aver.IsTrue(LockErrorCause.Statement == result.ErrorCause);
//3rd user wants to delete what the 1st set, CANT
result = m_Server.ExecuteLockTransaction(session3, delete);
Aver.IsTrue(LockStatus.TransactionError == result.Status);
Aver.IsTrue(LockErrorCause.Statement == result.ErrorCause);
//3rd user still sees the two original records
result = m_Server.ExecuteLockTransaction(session3, exists);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
//1st user deletes what the 1st set, CAN
result = m_Server.ExecuteLockTransaction(session1, delete);
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
//3rd user does not see the two original records anymore
result = m_Server.ExecuteLockTransaction(session3, exists);
Aver.IsTrue(LockStatus.TransactionError == result.Status);
Aver.IsTrue(LockErrorCause.Statement == result.ErrorCause);
//3rd does not see the first, but still sees the second
result = m_Server.ExecuteLockTransaction(session3, new LockTransaction("Testing 101", "A", 0, 0.0d,
LockOp.Assert(
LockOp.And
(
LockOp.Not(LockOp.Exists("Patient", "Barkhan1")),
LockOp.Exists("Patient", "buloch1970")
)
)));
Aver.IsTrue(LockStatus.TransactionOK == result.Status);
}
