public static ParseResult CreateAggregationKindsFromTokenList(IEnumerable <Token> tokenList, Field.Kind fieldKind, out List <Aggregation.Kinds> aggregationTypes)
{
aggregationTypes = new List <Aggregation.Kinds>();
foreach (var token in tokenList)
{
Aggregation.Kinds aggrType = Aggregation.Kinds.Undefined;
// check whether the aggregation type name exists
if (!SemanticsAnalyzer.CreateAggregationTypeFromName(token.Text, ref aggrType))
{
return(new ParseResult(ParseCode.SemanticsInvalidAggregationType, "Invalid aggregation type", token.ColumnPos));
}
// check whether the aggregation type is supported by the field type
if (!Field.IsAggregationAvailable(fieldKind, aggrType))
{
return(new ParseResult(ParseCode.SemanticsInvalidAggregationType, "Invalid aggregation type for the requested field type", token.ColumnPos));
}
aggregationTypes.Add(aggrType);
}
return(new ParseResult(ParseCode.Success));
}
public ParseResult CheckManifestFieldKindAndDefinition(string taskName, string eventName, string fieldName, Field.Kind expectedFieldKind, int columnPos)
{
// by-passing check in case semantic validadation against manifest files is disabled
if (!this.manifestSemanticsCheckEnabled)
{
return(new ParseResult(ParseCode.Success));
}
FieldDefinition fieldDef;
if (!this.manifestLookup.TryGetField(taskName, eventName, fieldName, out fieldDef))
{
return(new ParseResult(
ParseCode.SemanticsUndefinedEventInManifest,
string.Format("The specified field ({0}) is not available for the event defined by the pair (TaskName: {1}, EventName: {2})", fieldName, taskName, eventName),
columnPos));
}
// check whether field matches the expected type
Field.Kind fieldKind = SemanticsAnalyzer.GetAggregationFieldKind(fieldDef);
if (fieldKind != expectedFieldKind)
{
return(new ParseResult(
ParseCode.SemanticsInvalidFieldKind,
string.Format("The specified field ({0}) is of type ({1}) but was defined as a ({2}) type", fieldName, fieldKind.ToString(), expectedFieldKind.ToString()),
columnPos));
}
return(new ParseResult(ParseCode.Success));
}
// this method implements the D production for the grammar
// D -> E F G
private ParseResult D(Field.Kind fieldKind, ref TraceAggregationConfig telConfigEntry)
{
// try parsing E , i.e get the param names
List <Token> fieldTokenList = new List <Token>();
ParseResult parseRes = this.E(fieldKind, telConfigEntry, ref fieldTokenList);
if (parseRes.ParseCode != ParseCode.Success)
{
return(parseRes);
}
// get the field names
List <Field> fieldParamList;
parseRes = SemanticsAnalyzer.CreateFieldsFromTokenList(fieldTokenList, fieldKind, out fieldParamList);
if (parseRes.ParseCode != ParseCode.Success)
{
return(parseRes);
}
// try parsing F , i.e get the aggregation kinds
List <Token> aggregationParamList = new List <Token>();
parseRes = this.F(ref aggregationParamList);
if (parseRes.ParseCode != ParseCode.Success)
{
return(parseRes);
}
// check if the aggregation kinds are valid
List <Aggregation.Kinds> aggregationKindsList;
parseRes = SemanticsAnalyzer.CreateAggregationKindsFromTokenList(aggregationParamList, fieldKind, out aggregationKindsList);
if (parseRes.ParseCode != ParseCode.Success)
{
return(parseRes);
}
// sucessfully parsed the aggregation entry E F
// setting the current aggregation entry
telConfigEntry.AddAggregationEntries(fieldParamList, aggregationKindsList);
// try to find a new aggregation G
parseRes = this.G(ref telConfigEntry);
if (parseRes.ParseCode != ParseCode.Success)
{
return(parseRes);
}
return(new ParseResult(ParseCode.Success));
}
// private constructor
// the only public exposed method is the static method Parse
private SyntaxAnalyzer(StreamReader fileStream, IEnumerable <string> manifestFilesPaths, LogErrorDelegate logErrorDelegate, bool verbose)
{
this.fileStream = fileStream;
this.lexAnalyzer = null;
this.semanticsAnalyzer = new SemanticsAnalyzer(manifestFilesPaths, manifestFilesPaths.Any(), logErrorDelegate, verbose);
}
