/// <summary>
/// Returns a valid opened and connected IStatelessSession instance
/// for the given connection alias.
/// </summary>
/// <param name="alias"></param>
/// <returns></returns>
public IStatelessSession OpenStatelessSession(String alias)
{
if (alias == null)
{
throw new ArgumentNullException("alias");
}
ITransaction transaction = ObtainCurrentTransaction();
StatelessSessionDelegate wrapped = sessionStore.FindCompatibleStatelessSession(alias);
if (wrapped == null || (transaction != null && !wrapped.Transaction.IsActive))
{
IStatelessSession session = CreateStatelessSession(alias);
wrapped = WrapSession(transaction == null, session);
EnlistIfNecessary(true, transaction, wrapped);
sessionStore.Store(alias, wrapped);
}
else
{
EnlistIfNecessary(false, transaction, wrapped);
wrapped = WrapSession(false, wrapped.InnerSession);
}
return(wrapped);
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
SessionDelegate session)
{
if (transaction == null)
{
Logger.Info("Tx not found. Nothing to do here.");
return(false);
}
Logger.InfoFormat("Enlistment status. Session: {0}. Tx IsActive: {1}. Are we Session Owner: {2}",
session.GetSessionImplementation().SessionId, session.Transaction.IsActive, weAreSessionOwner);
if (weAreSessionOwner && session.Transaction.IsActive)
{
Logger.Info("Enlisted Session " + session.GetSessionImplementation().SessionId);
var ue = new UnregisterEnlistment(Logger, session.UnregisterFromStore, transaction);
transaction.Inner.EnlistVolatile(ue, EnlistmentOptions.EnlistDuringPrepareRequired);
}
return(true);
}
public void NewTransactionBeforeUsingStatelessSession()
{
ISessionManager manager = container.Resolve <ISessionManager>();
ITransactionManager tmanager = container.Resolve <ITransactionManager>();
ITransaction transaction = tmanager.CreateTransaction(
TransactionMode.Requires,
IsolationMode.Serializable);
transaction.Begin();
IStatelessSession session = manager.OpenStatelessSession();
Assert.IsNotNull(session);
Assert.IsNotNull(session.Transaction);
transaction.Commit();
// TODO: Assert transaction was committed
// Assert.IsTrue(session.Transaction.WasCommitted);
// Assert.IsTrue(session.IsConnected);
session.Dispose();
Assert.IsTrue(container.Resolve <ISessionStore>().IsCurrentActivityEmptyFor(Constants.DefaultAlias));
}
public UnregisterEnlistment(ILogger logger, Action callback, ITransaction transaction)
{
this.callback = callback;
id = transaction.Inner.TransactionInformation.LocalIdentifier;
logger.Info("Enlisted to undertake " + id);
this.logger = logger;
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
StatelessSessionDelegate session)
{
if (transaction == null)
{
return(false);
}
var list = (IList <IStatelessSession>)transaction.Context["nh.statelessSession.enlisted"];
bool shouldEnlist;
if (list == null)
{
list = new List <IStatelessSession>();
shouldEnlist = true;
}
else
{
shouldEnlist = true;
foreach (IStatelessSession sess in list)
{
if (StatelessSessionDelegate.AreEqual(session, sess))
{
shouldEnlist = false;
break;
}
}
}
if (shouldEnlist)
{
if (session.Transaction == null || !session.Transaction.IsActive)
{
transaction.Context["nh.statelessSession.enlisted"] = list;
IsolationLevel level = TranslateIsolationLevel(transaction.IsolationMode);
transaction.Enlist(new ResourceAdapter(session.BeginTransaction(level), transaction.IsAmbient));
list.Add(session);
}
if (weAreSessionOwner)
{
transaction.RegisterSynchronization(new StatelessSessionDisposeSynchronization(session));
}
}
return(true);
}
public void NewTransactionAfterUsingStatelessSession()
{
ISessionManager manager = container.Resolve <ISessionManager>();
IStatelessSession session1 = manager.OpenStatelessSession();
ITransactionManager tmanager = container.Resolve <ITransactionManager>();
ITransaction transaction = tmanager.CreateTransaction(
TransactionMode.Requires,
IsolationMode.Serializable);
transaction.Begin();
// Nested
using (IStatelessSession session2 = manager.OpenStatelessSession())
{
Assert.IsNotNull(session2);
Assert.IsNotNull(session1);
Assert.IsNotNull(session1.Transaction,
"After requesting compatible session, first session is enlisted in transaction too.");
Assert.IsTrue(session1.Transaction.IsActive,
"After requesting compatible session, first session is enlisted in transaction too.");
using (ISession session3 = manager.OpenSession())
{
Assert.IsNotNull(session3);
Assert.IsNotNull(session3.Transaction);
Assert.IsTrue(session3.Transaction.IsActive);
}
StatelessSessionDelegate delagate1 = (StatelessSessionDelegate)session1;
StatelessSessionDelegate delagate2 = (StatelessSessionDelegate)session2;
Assert.AreSame(delagate1.InnerSession, delagate2.InnerSession);
}
transaction.Commit();
// TODO: Assert transaction was committed
// Assert.IsTrue(session1.Transaction.WasCommitted);
Assert.IsTrue(session1.IsConnected);
session1.Dispose();
Assert.IsTrue(container.Resolve <ISessionStore>().IsCurrentActivityEmptyFor(Constants.DefaultAlias));
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
StatelessSessionDelegate session)
{
if (transaction == null)
{
return(false);
}
if (weAreSessionOwner && session.Transaction.IsActive)
{
var ue = new UnregisterEnlistment(Logger, session.UnregisterFromStore, transaction);
transaction.Inner.EnlistVolatile(ue, EnlistmentOptions.EnlistDuringPrepareRequired);
}
return(true);
}
public void SecondDatabaseStatelessSessionEnlistedOnlyOnceInActualTransaction()
{
ISessionManager manager = container.Resolve <ISessionManager>();
ITransactionManager tmanager = container.Resolve <ITransactionManager>();
ITransaction transaction = tmanager.CreateTransaction(
TransactionMode.Requires,
IsolationMode.Serializable);
transaction.Begin();
// open connection to first database and enlist session in running transaction
IStatelessSession session1 = manager.OpenStatelessSession();
// open connection to second database and enlist session in running transaction
using (IStatelessSession session2 = manager.OpenStatelessSession("db2"))
{
Assert.IsNotNull(session2);
Assert.IsNotNull(session2.Transaction);
}
// "real" NH session2 was not disposed because its in active transaction
// request compatible session for db2 --> we must get existing NH session to db2 which should be already enlisted in active transaction
using (IStatelessSession session3 = manager.OpenStatelessSession("db2"))
{
Assert.IsNotNull(session3);
Assert.IsTrue(session3.Transaction.IsActive);
}
transaction.Commit();
// TODO: Assert transaction was committed
// Assert.IsTrue(session1.Transaction.WasCommitted);
// Assert.IsTrue(session1.IsConnected);
session1.Dispose();
Assert.IsTrue(container.Resolve <ISessionStore>().IsCurrentActivityEmptyFor(Constants.DefaultAlias));
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
StatelessSessionDelegate session)
{
if (transaction == null) return false;
var list = (IList<IStatelessSession>) transaction.Context["nh.statelessSession.enlisted"];
bool shouldEnlist;
if (list == null)
{
list = new List<IStatelessSession>();
shouldEnlist = true;
}
else
{
shouldEnlist = true;
foreach (IStatelessSession sess in list)
{
if (StatelessSessionDelegate.AreEqual(session, sess))
{
shouldEnlist = false;
break;
}
}
}
if (shouldEnlist)
{
if (session.Transaction == null || !session.Transaction.IsActive)
{
transaction.Context["nh.statelessSession.enlisted"] = list;
IsolationLevel level = TranslateIsolationLevel(transaction.IsolationMode);
transaction.Enlist(new ResourceAdapter(session.BeginTransaction(level), transaction.IsAmbient));
list.Add(session);
}
if (weAreSessionOwner)
{
transaction.RegisterSynchronization(new StatelessSessionDisposeSynchronization(session));
}
}
return true;
}
public UnregisterEnlistment(ILogger logger, Action callback, ITransaction transaction)
{
this.callback = callback;
id = transaction.Inner.TransactionInformation.LocalIdentifier;
logger.Info("Enlisted to undertake " + id);
this.logger = logger;
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
StatelessSessionDelegate session)
{
if (transaction == null) return false;
if (weAreSessionOwner && session.Transaction.IsActive)
{
var ue = new UnregisterEnlistment(Logger, session.UnregisterFromStore, transaction);
transaction.Inner.EnlistVolatile(ue, EnlistmentOptions.EnlistDuringPrepareRequired);
}
return true;
}
/// <summary>
/// Enlists if necessary.
/// </summary>
/// <param name="weAreSessionOwner">if set to <c>true</c> [we are session owner].</param>
/// <param name="transaction">The transaction.</param>
/// <param name="session">The session.</param>
/// <returns></returns>
protected bool EnlistIfNecessary(bool weAreSessionOwner,
ITransaction transaction,
SessionDelegate session)
{
if (transaction == null)
{
Logger.Info("Tx not found. Nothing to do here.");
return false;
}
Logger.InfoFormat("Enlistment status. Session: {0}. Tx IsActive: {1}. Are we Session Owner: {2}",
session.GetSessionImplementation().SessionId, session.Transaction.IsActive, weAreSessionOwner);
if (weAreSessionOwner && session.Transaction.IsActive)
{
Logger.Info("Enlisted Session " + session.GetSessionImplementation().SessionId);
var ue = new UnregisterEnlistment(Logger, session.UnregisterFromStore, transaction);
transaction.Inner.EnlistVolatile(ue, EnlistmentOptions.EnlistDuringPrepareRequired);
}
return true;
}
