protected virtual void PrepareSynchronization(DefaultTransactionStatus status, ITransactionDefinition definition)
{
if (status.IsNewSynchronization)
{
TransactionSynchronizationManager.SetActualTransactionActive(status.HasTransaction);
TransactionSynchronizationManager.SetCurrentTransactionIsolationLevel(definition.IsolationLevel != AbstractTransactionDefinition.ISOLATION_DEFAULT ? definition.IsolationLevel : (int?)null);
TransactionSynchronizationManager.SetCurrentTransactionReadOnly(definition.IsReadOnly);
TransactionSynchronizationManager.SetCurrentTransactionName(definition.Name);
TransactionSynchronizationManager.InitSynchronization();
}
}
protected virtual SuspendedResourcesHolder Suspend(object transaction)
{
if (TransactionSynchronizationManager.IsSynchronizationActive())
{
var suspendedSynchronizations = DoSuspendSynchronization();
try
{
object suspendedResources = null;
if (transaction != null)
{
suspendedResources = DoSuspend(transaction);
}
var name = TransactionSynchronizationManager.GetCurrentTransactionName();
TransactionSynchronizationManager.SetCurrentTransactionName(null);
var readOnly = TransactionSynchronizationManager.IsCurrentTransactionReadOnly();
TransactionSynchronizationManager.SetCurrentTransactionReadOnly(false);
var isolationLevel = TransactionSynchronizationManager.GetCurrentTransactionIsolationLevel();
TransactionSynchronizationManager.SetCurrentTransactionIsolationLevel(null);
var wasActive = TransactionSynchronizationManager.IsActualTransactionActive();
TransactionSynchronizationManager.SetActualTransactionActive(false);
return(new SuspendedResourcesHolder(suspendedResources, suspendedSynchronizations, name, readOnly, isolationLevel, wasActive));
}
catch (Exception)
{
// doSuspend failed - original transaction is still active...
DoResumeSynchronization(suspendedSynchronizations);
throw;
}
}
else if (transaction != null)
{
// Transaction active but no synchronization active.
var suspendedResources = DoSuspend(transaction);
return(new SuspendedResourcesHolder(suspendedResources));
}
else
{
// Neither transaction nor synchronization active.
return(null);
}
}
protected virtual void Resume(object transaction, SuspendedResourcesHolder resourcesHolder)
{
if (resourcesHolder != null)
{
var suspendedResources = resourcesHolder.SuspendedResources;
if (suspendedResources != null)
{
DoResume(transaction, suspendedResources);
}
var suspendedSynchronizations = resourcesHolder.SuspendedSynchronizations;
if (suspendedSynchronizations != null)
{
TransactionSynchronizationManager.SetActualTransactionActive(resourcesHolder.WasActive);
TransactionSynchronizationManager.SetCurrentTransactionIsolationLevel(resourcesHolder.IsolationLevel);
TransactionSynchronizationManager.SetCurrentTransactionReadOnly(resourcesHolder.ReadOnly);
TransactionSynchronizationManager.SetCurrentTransactionName(resourcesHolder.Name);
DoResumeSynchronization(suspendedSynchronizations);
}
}
}
