protected IDataReader RunLiveQuery(List <Microsoft.ReportingServices.ReportIntermediateFormat.ParameterValue> queryParams, object[] paramValues)
{
IDataReader reader = null;
IDbCommand command = null;
IJobContext jobContext = m_odpContext.JobContext;
if (m_dataSourceConnection == null)
{
m_dataSourceConnection = RuntimeDataSource.OpenConnection(m_dataSource, m_dataSet, m_odpContext, m_executionMetrics);
}
try
{
m_executionMetrics.StartTimer(DataProcessingMetrics.MetricType.Query);
command = CreateCommand();
SetCommandParameters(command, queryParams, paramValues);
string commandText = SetCommandText(command);
StoreCommandText(commandText);
SetCommandType(command);
SetTransaction(command);
m_odpContext.CheckAndThrowIfAborted();
SetCommandTimeout(command);
ExtractRewrittenCommandText(command);
SetRestartPosition(command);
DataSourceInfo dataSourceInfo = null;
if (command is IDbImpersonationNeededForCommandCancel)
{
dataSourceInfo = m_dataSource.GetDataSourceInfo(m_odpContext);
}
m_command = command;
m_commandWrappedForCancel = new CommandWrappedForCancel(m_command, m_odpContext.CreateAndSetupDataExtensionFunction, m_dataSource, dataSourceInfo, m_dataSet.Name, m_dataSourceConnection);
if (jobContext != null)
{
jobContext.SetAdditionalCorrelation(m_command);
jobContext.ApplyCommandMemoryLimit(m_command);
}
DataSourceErrorInspector errorInspector = CreateErrorInspector();
reader = ExecuteReader(jobContext, errorInspector, commandText);
StoreDataReader(reader, errorInspector);
return(reader);
}
catch (RSException)
{
EagerInlineCommandAndReaderCleanup(ref reader, ref command);
throw;
}
catch (Exception e)
{
if (AsynchronousExceptionDetection.IsStoppingException(e))
{
throw;
}
EagerInlineCommandAndReaderCleanup(ref reader, ref command);
throw;
}
finally
{
m_executionMetrics.RecordTimerMeasurement(DataProcessingMetrics.MetricType.Query);
}
}
public override void Abort()
{
base.Abort();
if (RuntimeDataSource != null)
{
RuntimeDataSource.Abort();
}
}
protected void CloseConnection()
{
if (m_isConnectionOwner && m_dataSourceConnection != null)
{
RuntimeDataSource.CloseConnection(m_dataSourceConnection, m_dataSource, m_odpContext, m_executionMetrics);
m_dataSourceConnection = null;
}
}
internal void Close()
{
IDataReader obj = Interlocked.Exchange(ref m_dataReader, null);
if (obj != null)
{
QueryExecutionUtils.DisposeDataExtensionObject(ref obj, "data reader", m_dataSet.Name, m_executionMetrics, DataProcessingMetrics.MetricType.DisposeDataReader);
}
m_commandWrappedForCancel = null;
IDbCommand obj2 = Interlocked.Exchange(ref m_command, null);
if (obj2 != null)
{
QueryExecutionUtils.DisposeDataExtensionObject(ref obj2, "command", m_dataSet.Name);
}
IDbConnection dbConnection = Interlocked.Exchange(ref m_connection, null);
if (dbConnection != null)
{
RuntimeDataSource.CloseConnection(dbConnection, m_dataSource, m_odpContext, m_executionMetrics);
}
}
