void BackgroundWorker_SaveMeasuresAndCalcColumns(object sender, DoWorkEventArgs e)
{
var cmdProducer = new ServerCommandProducer(_database.Name, _database.CompatibilityLevel, _database.Cubes[0].Name);
try
{
var bw = sender as BackgroundWorker;
bw.DoWork -= new DoWorkEventHandler(BackgroundWorker_SaveMeasuresAndCalcColumns);
LogLine("Begin saving measures.");
string viewText = e.Argument as string;
var mc = MeasuresContainer.ParseDaxScript(viewText);
LogLine("Begin transaction.");
using (var cmd = new AdomdCommand("@CommandText", _adomdConn))
{
cmd.Parameters.Add(new AdomdParameter("CommandText", cmdProducer.ProduceBeginTransaction()));
cmd.ExecuteNonQuery();
}
LogLine("Alter MDX script.");
using (var cmd = new AdomdCommand("@CommandText", _adomdConn))
{
cmd.Parameters.Add(new AdomdParameter("CommandText", cmdProducer.ProduceAlterMdxScript(mc.Measures)));
cmd.ExecuteNonQuery();
}
LogLine("Run ProcessRecalc.");
using (var cmd = new AdomdCommand("@CommandText", _adomdConn))
{
cmd.Parameters.Add(new AdomdParameter("CommandText", cmdProducer.ProduceProcessRecalc()));
cmd.ExecuteNonQuery();
}
LogLine("Commit transaction.");
using (var cmd = new AdomdCommand("@CommandText", _adomdConn))
{
cmd.Parameters.Add(new AdomdParameter("CommandText", cmdProducer.ProduceCommitTransaction()));
cmd.ExecuteNonQuery();
}
LogLine("End saving measures.");
}
catch (Exception ex)
{
using (var cmd = new AdomdCommand("@CommandText", _adomdConn))
{
cmd.Parameters.Add(new AdomdParameter("CommandText", cmdProducer.ProduceRollbackTransaction()));
cmd.ExecuteNonQuery();
}
LogError("Error while saving measures. " + ex.ToString());
}
}
public static MeasuresContainer ParseXmla(string text)
{
try
{
var database = ServerCommandProducer.GetDatabase(text);
Debug.Assert(database != null);
return(CreateFromXmlDatabase(database));
}
catch (Exception exception)
{
throw new DaxException(
$@"Error while parsing Xmla.
Message: {exception.Message}
Input text: {text}", exception);
}
}
/// <summary>
/// Update input XMLA with the measures of this object.
/// </summary>
/// <param name="text">input XMLA text</param>
/// <exception cref="ArgumentException">Exception if text is null or whitespace</exception>
/// <returns>updated XMLA with measures from this object</returns>
public string UpdateMeasuresInXmla(string text)
{
if (string.IsNullOrWhiteSpace(text))
{
throw new ArgumentException(nameof(text) + " is empty");
}
var document = XDocument.Parse(text);
var producer = new ServerCommandProducer(text);
var newScript = producer.ProduceAlterScriptElement(this);
var newScriptDocument = XDocument.Parse(newScript);
document.Descendants(NS + "MdxScript").First().ReplaceWith(newScriptDocument.Root);
return(document.ToString(SaveOptions.OmitDuplicateNamespaces));
}
