private static bool SqlCommandAsyncResultCallback(IAsyncResult result)
{
SqlWorkflowInstanceStoreAsyncResult asyncState = (SqlWorkflowInstanceStoreAsyncResult)result.AsyncState;
Exception exception = null;
bool flag = true;
try
{
using (asyncState.sqlCommand)
{
using (SqlDataReader reader = SqlCommandAsyncResult.End(result))
{
exception = asyncState.ProcessSqlResult(reader);
}
}
}
catch (Exception exception2)
{
if (Fx.IsFatal(exception2))
{
throw;
}
Guid instanceId = (asyncState.InstancePersistenceContext != null) ? asyncState.InstancePersistenceContext.InstanceView.InstanceId : Guid.Empty;
exception = new InstancePersistenceCommandException(asyncState.InstancePersistenceCommand.Name, instanceId, exception2);
}
if (exception is InstanceAlreadyLockedToOwnerException)
{
InstanceAlreadyLockedToOwnerException exception3 = (InstanceAlreadyLockedToOwnerException)exception;
long instanceVersion = exception3.InstanceVersion;
if (!asyncState.InstancePersistenceContext.InstanceView.IsBoundToInstance)
{
asyncState.InstancePersistenceContext.BindInstance(exception3.InstanceId);
}
IAsyncResult result3 = asyncState.InstancePersistenceContext.BeginBindReclaimedLock(instanceVersion, asyncState.TimeoutHelper.RemainingTime(), asyncState.PrepareAsyncCompletion(onBindReclaimed), asyncState);
if (!asyncState.SyncContinue(result3))
{
flag = false;
}
return(flag);
}
if (exception == null)
{
return(flag);
}
if (asyncState.sqlCommand.Connection != null)
{
asyncState.sqlCommand.Connection.Close();
}
asyncState.TraceException(exception);
throw FxTrace.Exception.AsError(exception);
}
void StartOperation()
{
Guid instanceId = (this.InstancePersistenceContext != null) ? this.InstancePersistenceContext.InstanceView.InstanceId : Guid.Empty;
Exception delayedException = null;
try
{
this.sqlCommand = new SqlCommand();
this.GenerateSqlCommand(this.sqlCommand);
this.sqlCommand.CommandText = this.GetSqlCommandText();
this.sqlCommand.CommandType = this.GetSqlCommandType();
StoreUtilities.TraceSqlCommand(this.sqlCommand, true);
SqlCommandAsyncResult sqlCommandResult = new SqlCommandAsyncResult(this.sqlCommand, this.ConnectionString,
(this.InstancePersistenceContext != null) ? this.InstancePersistenceContext.EventTraceActivity : null,
this.DependentTransaction, this.TimeoutHelper.RemainingTime(), 0, this.maximumRetries, PrepareAsyncCompletion(onSqlCommandAsyncResultCallback), this);
sqlCommandResult.StartCommand();
if (!SyncContinue(sqlCommandResult))
{
return;
}
}
catch (InstancePersistenceException instancePersistenceException)
{
delayedException = instancePersistenceException;
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
delayedException = new InstancePersistenceCommandException(this.InstancePersistenceCommand.Name, instanceId, exception);
}
if (delayedException != null)
{
if (this.sqlCommand.Connection != null)
{
this.sqlCommand.Connection.Close();
}
this.sqlCommand.Dispose();
this.TraceException(delayedException);
}
this.Complete(false, delayedException);
}
private void StartOperation()
{
Guid instanceId = (this.InstancePersistenceContext != null) ? this.InstancePersistenceContext.InstanceView.InstanceId : Guid.Empty;
Exception exception = null;
try
{
this.sqlCommand = new SqlCommand();
this.GenerateSqlCommand(this.sqlCommand);
this.sqlCommand.CommandText = this.GetSqlCommandText();
this.sqlCommand.CommandType = this.GetSqlCommandType();
StoreUtilities.TraceSqlCommand(this.sqlCommand, true);
SqlCommandAsyncResult result = new SqlCommandAsyncResult(this.sqlCommand, this.ConnectionString, this.DependentTransaction, this.TimeoutHelper.RemainingTime(), 0, this.Store.MaxConnectionRetries, base.PrepareAsyncCompletion(onSqlCommandAsyncResultCallback), this);
result.StartCommand();
if (!base.SyncContinue(result))
{
return;
}
}
catch (InstancePersistenceException exception2)
{
exception = exception2;
}
catch (Exception exception3)
{
if (Fx.IsFatal(exception3))
{
throw;
}
exception = new InstancePersistenceCommandException(this.InstancePersistenceCommand.Name, instanceId, exception3);
}
if (exception != null)
{
if (this.sqlCommand.Connection != null)
{
this.sqlCommand.Connection.Close();
}
this.sqlCommand.Dispose();
this.TraceException(exception);
}
base.Complete(false, exception);
}
public static Exception GetError(XName commandName, CommandResult result, SqlDataReader reader)
{
Exception returnValue = null;
if (result != CommandResult.Success)
{
switch (result)
{
case CommandResult.InstanceAlreadyExists:
returnValue = new InstanceCollisionException(commandName, reader.GetGuid(1));
break;
case CommandResult.InstanceLockNotAcquired:
returnValue = new InstanceLockedException(commandName, reader.GetGuid(1), reader.GetGuid(2), ReadLockOwnerMetadata(reader));
break;
case CommandResult.InstanceNotFound:
returnValue = new InstanceNotReadyException(commandName, reader.GetGuid(1));
break;
case CommandResult.KeyAlreadyExists:
returnValue = new InstanceKeyCollisionException(commandName, Guid.Empty,
new InstanceKey(reader.GetGuid(1)), Guid.Empty);
break;
case CommandResult.KeyNotFound:
returnValue = new InstanceKeyNotReadyException(commandName, new InstanceKey(reader.GetGuid(1)));
break;
case CommandResult.InstanceLockLost:
returnValue = new InstanceLockLostException(commandName, reader.GetGuid(1));
break;
case CommandResult.InstanceCompleted:
returnValue = new InstanceCompleteException(commandName, reader.GetGuid(1));
break;
case CommandResult.KeyDisassociated:
returnValue = new InstanceKeyCompleteException(commandName, new InstanceKey(reader.GetGuid(1)));
break;
case CommandResult.StaleInstanceVersion:
returnValue = new InstanceLockLostException(commandName, reader.GetGuid(1));
break;
case CommandResult.HostLockExpired:
returnValue = new InstancePersistenceException(SR.HostLockExpired);
break;
case CommandResult.HostLockNotFound:
returnValue = new InstancePersistenceException(SR.HostLockNotFound);
break;
case CommandResult.CleanupInProgress:
returnValue = new InstancePersistenceCommandException(SR.CleanupInProgress);
break;
case CommandResult.InstanceAlreadyLockedToOwner:
returnValue = new InstanceAlreadyLockedToOwnerException(commandName, reader.GetGuid(1), reader.GetInt64(2));
break;
default:
returnValue = new InstancePersistenceCommandException(SR.UnknownSprocResult(result));
break;
}
}
return(returnValue);
}
static bool SqlCommandAsyncResultCallback(IAsyncResult result)
{
SqlWorkflowInstanceStoreAsyncResult thisPtr = (SqlWorkflowInstanceStoreAsyncResult)result.AsyncState;
Exception delayedException = null;
bool completeFlag = true;
try
{
using (thisPtr.sqlCommand)
{
using (SqlDataReader reader = SqlCommandAsyncResult.End(result))
{
delayedException = thisPtr.ProcessSqlResult(reader);
}
}
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
Guid instanceId = (thisPtr.InstancePersistenceContext != null) ? thisPtr.InstancePersistenceContext.InstanceView.InstanceId : Guid.Empty;
delayedException = new InstancePersistenceCommandException(thisPtr.InstancePersistenceCommand.Name, instanceId, exception);
}
if (delayedException is InstanceAlreadyLockedToOwnerException)
{
InstanceAlreadyLockedToOwnerException alreadyLockedException = (InstanceAlreadyLockedToOwnerException)delayedException;
long reclaimLockAtVersion = alreadyLockedException.InstanceVersion;
if (!thisPtr.InstancePersistenceContext.InstanceView.IsBoundToInstance)
{
thisPtr.InstancePersistenceContext.BindInstance(alreadyLockedException.InstanceId);
}
IAsyncResult bindReclaimedAsyncResult = thisPtr.InstancePersistenceContext.BeginBindReclaimedLock(reclaimLockAtVersion, thisPtr.TimeoutHelper.RemainingTime(), thisPtr.PrepareAsyncCompletion(SqlWorkflowInstanceStoreAsyncResult.onBindReclaimed), thisPtr);
if (!thisPtr.SyncContinue(bindReclaimedAsyncResult))
{
completeFlag = false;
}
}
else if (delayedException != null)
{
if (thisPtr.sqlCommand.Connection != null)
{
thisPtr.sqlCommand.Connection.Close();
}
bool handled = false;
thisPtr.OnSqlException(delayedException, out handled);
if (!handled)
{
thisPtr.TraceException(delayedException);
throw FxTrace.Exception.AsError(delayedException);
}
}
if (completeFlag)
{
completeFlag = thisPtr.OnSqlProcessingComplete();
}
return(completeFlag);
}
