public Workflow(ISourceCodeRepository sourceCodeRepository, LanguageFlags languages,
IPatternsRepository patternsRepository = null, Stage stage = Stage.Match)
: base(stage)
{
SourceCodeRepository = sourceCodeRepository;
PatternsRepository = patternsRepository ?? new DefaultPatternRepository();
ParserConverterSets = ParserConverterBuilder.GetParserConverterSets(languages);
UstPatternMatcher = new BruteForcePatternMatcher();
IUstNodeSerializer jsonNodeSerializer = new JsonUstNodeSerializer(typeof(UstNode), typeof(PatternVarDef));
IUstNodeSerializer dslNodeSerializer = new DslProcessor();
PatternConverter = new PatternConverter(new IUstNodeSerializer[] { jsonNodeSerializer, dslNodeSerializer });
Stage = stage;
ThreadCount = 1;
}
public override Language?Detect(string sourceCode, Language[] languages = null)
{
List <Language> langs = (languages ?? LanguageExt.Languages).ToList();
// Any PHP file contains start tag.
if (!sourceCode.Contains("<?"))
{
langs.Remove(Language.Php);
}
// Aspx and html code contains at least one tag.
if (!openTagRegex.IsMatch(sourceCode) || !closeTagRegex.IsMatch(sourceCode))
{
langs.Remove(Language.Aspx);
langs.Remove(Language.Html);
}
var sourceCodeFile = new SourceCodeFile("Temp Source Code")
{
Code = sourceCode
};
var parseUnits = new Queue <Tuple <Language, ParserUnit> >(langs.Count);
langs = langs
.GroupBy(l => ParserConverterBuilder.GetParserConverterSet(l).Parser.Language)
.Select(l => l.First())
.ToList();
if (langs.Count == 1)
{
return(langs[0]);
}
foreach (var language in langs)
{
var logger = new LoggerMessageCounter();
ILanguageParser languageParser = ParserConverterBuilder.GetParserConverterSet(language).Parser;
var task = Task.Factory.StartNew(() =>
{
languageParser.Logger = logger;
languageParser.Parse(sourceCodeFile);
});
parseUnits.Enqueue(Tuple.Create(language, new ParserUnit(languageParser, logger, task)));
}
int minErrorCount = int.MaxValue;
Language?resultWithMinErrors = null;
// Check every parseUnit completion every 50 ms.
while (parseUnits.Count > 0)
{
var pair = parseUnits.Dequeue();
if (!pair.Item2.Task.IsCompleted)
{
parseUnits.Enqueue(pair);
Thread.Sleep(50);
continue;
}
if (pair.Item2.Logger.ErrorCount == 0 && pair.Item1 != Language.Aspx)
{
return(pair.Item1);
}
var errorCount = pair.Item2.ParseErrorCount;
if (errorCount < minErrorCount)
{
minErrorCount = errorCount;
resultWithMinErrors = pair.Item1;
}
}
return(resultWithMinErrors);
}