public IEnumerable <string> Execute(TnsNamesQuery query)
{
if (string.IsNullOrEmpty(query.ProviderInvariantName))
{
throw new ArgumentNullException(nameof(query.ProviderInvariantName));
}
IEnumerable <string> tnsNames = Enumerable.Empty <string>();
DbProviderFactory factory = DbProviderFactories.GetFactory(query.ProviderInvariantName);
if (factory.CanCreateDataSourceEnumerator)
{
DbDataSourceEnumerator dsenum = factory.CreateDataSourceEnumerator();
if (dsenum != null)
{
DataTable dt = dsenum.GetDataSources();
DataRow[] rows = dt.Select(null, "InstanceName", DataViewRowState.CurrentRows);
tnsNames = rows.Select(row => (string)row["InstanceName"]);
}
}
return(tnsNames);
}
public Task <IEnumerable <string> > ExecuteAsync(TnsNamesQuery query)
{
throw new NotImplementedException();
}