/// <summary>
/// Stores the tracking information for the new transaction to the database in the same transaction.
/// </summary>
/// <param name="connection">The connection that began the transaction.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="M:System.Data.Entity.Infrastructure.Interception.IDbConnectionInterceptor.BeganTransaction(System.Data.Common.DbConnection,System.Data.Entity.Infrastructure.Interception.BeginTransactionInterceptionContext)" />
public override void BeganTransaction(
DbConnection connection,
BeginTransactionInterceptionContext interceptionContext)
{
if (this.TransactionContext == null || !this.MatchesParentContext(connection, (DbInterceptionContext)interceptionContext) || interceptionContext.Result == null)
{
return;
}
Guid transactionId = Guid.NewGuid();
bool flag1 = false;
bool flag2 = false;
ObjectContext objectContext = ((IObjectContextAdapter)this.TransactionContext).ObjectContext;
((EntityConnection)objectContext.Connection).UseStoreTransaction(interceptionContext.Result);
while (!flag1)
{
TransactionRow entity = new TransactionRow()
{
Id = transactionId,
CreationTime = DateTime.Now
};
this._transactions.Add(interceptionContext.Result, entity);
this.TransactionContext.Transactions.Add(entity);
try
{
objectContext.SaveChangesInternal(SaveOptions.AcceptAllChangesAfterSave, true);
flag1 = true;
}
catch (UpdateException ex1)
{
this._transactions.Remove(interceptionContext.Result);
this.TransactionContext.Entry <TransactionRow>(entity).State = EntityState.Detached;
if (flag2)
{
throw;
}
else
{
try
{
if (this.TransactionContext.Transactions.AsNoTracking <TransactionRow>().WithExecutionStrategy <TransactionRow>((IDbExecutionStrategy) new DefaultExecutionStrategy()).FirstOrDefault <TransactionRow>((Expression <Func <TransactionRow, bool> >)(t => t.Id == transactionId)) != null)
{
transactionId = Guid.NewGuid();
}
else
{
throw;
}
}
catch (EntityCommandExecutionException ex2)
{
this.TransactionContext.Database.Initialize(true);
flag2 = true;
}
}
}
}
}
/// <summary>
/// Adds the specified transaction to the list of transactions that can be removed from the database
/// </summary>
/// <param name="transaction">The transaction to be removed from the database.</param>
protected virtual void MarkTransactionForPruning(TransactionRow transaction)
{
Check.NotNull(transaction, "transaction");
if (!_rowsToDelete.Contains(transaction))
{
_rowsToDelete.Add(transaction);
}
}
/// <summary>
/// Adds the specified transaction to the list of transactions that can be removed from the database
/// </summary>
/// <param name="transaction">The transaction to be removed from the database.</param>
protected virtual void MarkTransactionForPruning(TransactionRow transaction)
{
Check.NotNull <TransactionRow>(transaction, nameof(transaction));
if (this._rowsToDelete.Contains(transaction))
{
return;
}
this._rowsToDelete.Add(transaction);
}
private void PruneTransactionHistory(TransactionRow transaction)
{
this.MarkTransactionForPruning(transaction);
try
{
this.PruneTransactionHistory(false, false);
}
catch (DataException ex)
{
}
}
private void PruneTransactionHistory(TransactionRow transaction)
{
MarkTransactionForPruning(transaction);
try
{
PruneTransactionHistory(force: false, useExecutionStrategy: false);
}
catch (DataException)
{
}
}
/// <summary>
/// If there was an exception thrown checks the database for this transaction and rethrows it if not found.
/// Otherwise marks the commit as succeeded and queues the transaction information to be deleted.
/// </summary>
/// <param name="transaction">The transaction that was commited.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="IDbTransactionInterceptor.Committed" />
public override void Committed(DbTransaction transaction, DbTransactionInterceptionContext interceptionContext)
{
TransactionRow transactionRow;
if (TransactionContext == null ||
(interceptionContext.Connection != null && !MatchesParentContext(interceptionContext.Connection, interceptionContext)) ||
!Transactions.TryGetValue(transaction, out transactionRow))
{
return;
}
Transactions.Remove(transaction);
if (interceptionContext.Exception != null)
{
TransactionRow existingTransactionRow = null;
var suspendedState = DbExecutionStrategy.Suspended;
try
{
DbExecutionStrategy.Suspended = false;
var executionStrategy = GetExecutionStrategy()
?? DbProviderServices.GetExecutionStrategy(interceptionContext.Connection);
existingTransactionRow = TransactionContext.Transactions
.AsNoTracking()
.WithExecutionStrategy(executionStrategy)
.SingleOrDefault(t => t.Id == transactionRow.Id);
}
catch (EntityCommandExecutionException)
{
// Error during verification, assume commit failed
}
finally
{
DbExecutionStrategy.Suspended = suspendedState;
}
if (existingTransactionRow != null)
{
// The transaction id is still in the database, so the commit succeeded
interceptionContext.Exception = null;
PruneTransactionHistory(transactionRow);
}
else
{
TransactionContext.Entry(transactionRow).State = EntityState.Detached;
}
}
else
{
PruneTransactionHistory(transactionRow);
}
}
/// <summary>
/// If there was an exception thrown checks the database for this transaction and rethrows it if not found.
/// Otherwise marks the commit as succeeded and queues the transaction information to be deleted.
/// </summary>
/// <param name="transaction">The transaction that was commited.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="IDbTransactionInterceptor.Committed" />
public override void Committed(DbTransaction transaction, DbTransactionInterceptionContext interceptionContext)
{
TransactionRow transactionRow;
if (TransactionContext == null ||
(interceptionContext.Connection != null && !MatchesParentContext(interceptionContext.Connection, interceptionContext)) ||
!_transactions.TryGetValue(transaction, out transactionRow))
{
return;
}
_transactions.Remove(transaction);
if (interceptionContext.Exception != null)
{
TransactionRow existingTransactionRow = null;
try
{
existingTransactionRow = TransactionContext.Transactions
.AsNoTracking()
.WithExecutionStrategy(new DefaultExecutionStrategy())
.SingleOrDefault(t => t.Id == transactionRow.Id);
}
catch (EntityCommandExecutionException)
{
// Transaction table doesn't exist
}
if (existingTransactionRow != null)
{
// The transaction id is still in the database, so the commit succeeded
interceptionContext.Exception = null;
PruneTransactionHistory(transactionRow);
}
else
{
TransactionContext.Entry(transactionRow).State = EntityState.Detached;
}
}
else
{
PruneTransactionHistory(transactionRow);
}
}
/// <summary>
/// If there was an exception thrown checks the database for this transaction and rethrows it if not found.
/// Otherwise marks the commit as succeeded and queues the transaction information to be deleted.
/// </summary>
/// <param name="transaction">The transaction that was commited.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="M:System.Data.Entity.Infrastructure.Interception.IDbTransactionInterceptor.Committed(System.Data.Common.DbTransaction,System.Data.Entity.Infrastructure.Interception.DbTransactionInterceptionContext)" />
public override void Committed(
DbTransaction transaction,
DbTransactionInterceptionContext interceptionContext)
{
TransactionRow transactionRow;
if (this.TransactionContext == null || interceptionContext.Connection != null && !this.MatchesParentContext(interceptionContext.Connection, (DbInterceptionContext)interceptionContext) || !this._transactions.TryGetValue(transaction, out transactionRow))
{
return;
}
this._transactions.Remove(transaction);
if (interceptionContext.Exception != null)
{
TransactionRow transactionRow1 = (TransactionRow)null;
try
{
transactionRow1 = this.TransactionContext.Transactions.AsNoTracking <TransactionRow>().WithExecutionStrategy <TransactionRow>((IDbExecutionStrategy) new DefaultExecutionStrategy()).SingleOrDefault <TransactionRow>((Expression <Func <TransactionRow, bool> >)(t => t.Id == transactionRow.Id));
}
catch (EntityCommandExecutionException ex)
{
}
if (transactionRow1 != null)
{
interceptionContext.Exception = (Exception)null;
this.PruneTransactionHistory(transactionRow);
}
else
{
this.TransactionContext.Entry <TransactionRow>(transactionRow).State = EntityState.Detached;
}
}
else
{
this.PruneTransactionHistory(transactionRow);
}
}
private void PruneTransactionRows(TransactionRow transaction)
{
MarkTransactionForPruning(transaction);
PruneTransactionRows(force: false);
}
/// <summary>
/// Stores the tracking information for the new transaction to the database in the same transaction.
/// </summary>
/// <param name="connection">The connection that began the transaction.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="IDbConnectionInterceptor.BeganTransaction" />
public override void BeganTransaction(DbConnection connection, BeginTransactionInterceptionContext interceptionContext)
{
if (TransactionContext == null ||
!MatchesParentContext(connection, interceptionContext))
{
return;
}
var transactionId = Guid.NewGuid();
var savedSuccesfully = false;
var reinitializedDatabase = false;
while (!savedSuccesfully)
{
Debug.Assert(!_transactions.ContainsKey(interceptionContext.Result), "The transaction has already been registered");
var transactionRow = new TransactionRow {
Id = transactionId, CreationTime = DateTime.Now
};
_transactions.Add(interceptionContext.Result, transactionRow);
TransactionContext.Transactions.Add(transactionRow);
var objectContext = ((IObjectContextAdapter)TransactionContext).ObjectContext;
((EntityConnection)objectContext.Connection).UseStoreTransaction(interceptionContext.Result);
try
{
objectContext.SaveChanges(SaveOptions.DetectChangesBeforeSave, executeInExistingTransaction: true);
savedSuccesfully = true;
}
catch (UpdateException)
{
_transactions.Remove(interceptionContext.Result);
TransactionContext.Transactions.Remove(transactionRow);
if (reinitializedDatabase)
{
throw;
}
try
{
var existingTransaction =
TransactionContext.Transactions
.AsNoTracking()
.WithExecutionStrategy(new DefaultExecutionStrategy())
.FirstOrDefault(t => t.Id == transactionId);
if (existingTransaction != null)
{
transactionId = Guid.NewGuid();
Debug.Assert(false, "Duplicate GUID! this should never happen");
}
}
catch (EntityCommandExecutionException)
{
// The necessary tables are not present.
// This can happen if the database was deleted after TransactionContext has been initialized
TransactionContext.Database.Initialize(force: true);
reinitializedDatabase = true;
}
interceptionContext.Result.Rollback();
interceptionContext.Result = connection.BeginTransaction(interceptionContext.IsolationLevel);
}
}
}
private void PruneTransactionHistory(TransactionRow transaction)
{
MarkTransactionForPruning(transaction);
try
{
PruneTransactionHistory(force: false, useExecutionStrategy: false);
}
catch (DataException)
{
}
}
/// <summary>
/// Adds the specified transaction to the list of transactions that can be removed from the database
/// </summary>
/// <param name="transaction">The transaction to be removed from the database.</param>
protected virtual void MarkTransactionForPruning(TransactionRow transaction)
{
Check.NotNull(transaction, "transaction");
if (!_rowsToDelete.Contains(transaction))
{
_rowsToDelete.Add(transaction);
}
}
/// <summary>
/// Stores the tracking information for the new transaction to the database in the same transaction.
/// </summary>
/// <param name="connection">The connection that began the transaction.</param>
/// <param name="interceptionContext">Contextual information associated with the call.</param>
/// <seealso cref="IDbConnectionInterceptor.BeganTransaction" />
public override void BeganTransaction(DbConnection connection, BeginTransactionInterceptionContext interceptionContext)
{
if (TransactionContext == null
|| !MatchesParentContext(connection, interceptionContext)
|| interceptionContext.Result == null)
{
return;
}
var transactionId = Guid.NewGuid();
var savedSuccesfully = false;
var reinitializedDatabase = false;
var objectContext = ((IObjectContextAdapter)TransactionContext).ObjectContext;
((EntityConnection)objectContext.Connection).UseStoreTransaction(interceptionContext.Result);
while (!savedSuccesfully)
{
Debug.Assert(!_transactions.ContainsKey(interceptionContext.Result), "The transaction has already been registered");
var transactionRow = new TransactionRow { Id = transactionId, CreationTime = DateTime.Now };
_transactions.Add(interceptionContext.Result, transactionRow);
TransactionContext.Transactions.Add(transactionRow);
try
{
objectContext.SaveChangesInternal(SaveOptions.AcceptAllChangesAfterSave, executeInExistingTransaction: true);
savedSuccesfully = true;
}
catch (UpdateException)
{
_transactions.Remove(interceptionContext.Result);
TransactionContext.Entry(transactionRow).State = EntityState.Detached;
if (reinitializedDatabase)
{
throw;
}
try
{
var existingTransaction =
TransactionContext.Transactions
.AsNoTracking()
.WithExecutionStrategy(new DefaultExecutionStrategy())
.FirstOrDefault(t => t.Id == transactionId);
if (existingTransaction != null)
{
transactionId = Guid.NewGuid();
Debug.Assert(false, "Duplicate GUID! this should never happen");
}
else
{
// Unknown exception cause
throw;
}
}
catch (EntityCommandExecutionException)
{
// The necessary tables are not present.
// This can happen if the database was deleted after TransactionContext has been initialized
TransactionContext.Database.Initialize(force: true);
reinitializedDatabase = true;
}
}
}
}
