public bool DeduplicateMessage(string clientId, DateTime timeReceived)
{
using (var conn = SessionFactory.GetConnection())
using (var session = SessionFactory.OpenSessionEx(conn))
using (var tx = session.BeginAmbientTransactionAware(IsolationLevel.ReadCommitted))
{
var gatewayMessage = session.Get<DeduplicationMessage>(clientId);
if (gatewayMessage != null)
{
tx.Commit();
return false;
}
gatewayMessage = new DeduplicationMessage
{
Id = clientId,
TimeReceived = timeReceived
};
try
{
session.Save(gatewayMessage);
tx.Commit();
}
catch (GenericADOException)
{
tx.Rollback();
return false;
}
}
return true;
}
public Task <bool> DeduplicateMessage(string clientId, DateTime timeReceived, ContextBag context)
{
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeginTransaction(IsolationLevel.ReadCommitted))
{
var gatewayMessage = session.Get <DeduplicationMessage>(clientId);
if (gatewayMessage != null)
{
tx.Commit();
return(Task.FromResult(false));
}
gatewayMessage = new DeduplicationMessage
{
Id = clientId,
TimeReceived = timeReceived
};
try
{
session.Save(gatewayMessage);
tx.Commit();
}
catch (GenericADOException)
{
tx.Rollback();
return(Task.FromResult(false));
}
}
return(Task.FromResult(true));
}
public bool DeduplicateMessage(string clientId, DateTime timeReceived)
{
using (var conn = SessionFactory.GetConnection())
using (var session = SessionFactory.OpenSessionEx(conn))
using (var tx = session.BeginAmbientTransactionAware(IsolationLevel.ReadCommitted))
{
var gatewayMessage = session.Get <DeduplicationMessage>(clientId);
if (gatewayMessage != null)
{
tx.Commit();
return(false);
}
gatewayMessage = new DeduplicationMessage
{
Id = clientId,
TimeReceived = timeReceived
};
try
{
session.Save(gatewayMessage);
tx.Commit();
}
catch (GenericADOException)
{
tx.Rollback();
return(false);
}
}
return(true);
}
public async Task <bool> DeduplicateMessage(string clientId, DateTime timeReceived, ContextBag context)
{
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeginTransaction(IsolationLevel.ReadCommitted))
{
var gatewayMessage = await session.GetAsync <DeduplicationMessage>(clientId)
.ConfigureAwait(false);
if (gatewayMessage != null)
{
await tx.CommitAsync()
.ConfigureAwait(false);
return(false);
}
gatewayMessage = new DeduplicationMessage
{
Id = clientId,
TimeReceived = timeReceived
};
try
{
await session.SaveAsync(gatewayMessage)
.ConfigureAwait(false);
await tx.CommitAsync()
.ConfigureAwait(false);
}
catch (ConstraintViolationException)
{
await tx.RollbackAsync()
.ConfigureAwait(false);
return(false);
}
catch (ADOException)
{
await tx.RollbackAsync()
.ConfigureAwait(false);
throw;
}
}
return(true);
}
