Examples with Match io.krakens.grok.api.Match used on opensource projects

Example 1 with Match

use of io.krakens.grok.api.Match in project graylog2-server by Graylog2.

the class GrokMatch method evaluate.

@Override
public GrokResult evaluate(FunctionArgs args, EvaluationContext context) {
    final String value = valueParam.required(args, context);
    final String pattern = patternParam.required(args, context);
    final boolean onlyNamedCaptures = namedOnly.optional(args, context).orElse(false);
    if (value == null || pattern == null) {
        return null;
    }
    final Grok grok = grokPatternRegistry.cachedGrokForPattern(pattern, onlyNamedCaptures);
    final Match match = grok.match(value);
    ;
    return new GrokResult(match.captureFlattened());
}

Example 2 with Match

use of io.krakens.grok.api.Match in project graylog2-server by Graylog2.

the class GrokTesterResource method doTestGrok.

private GrokTesterResponse doTestGrok(String string, String pattern, boolean namedCapturesOnly) throws GrokException {
    final Set<GrokPattern> grokPatterns = grokPatternService.loadAll();
    final GrokCompiler grokCompiler = GrokCompiler.newInstance();
    for (GrokPattern grokPattern : grokPatterns) {
        grokCompiler.register(grokPattern.name(), grokPattern.pattern());
    }
    final Grok grok;
    try {
        grok = grokCompiler.compile(pattern, namedCapturesOnly);
    } catch (Exception e) {
        return GrokTesterResponse.createError(pattern, string, e.getMessage());
    }
    final Match match = grok.match(string);
    final Map<String, Object> matches = match.captureFlattened();
    final GrokTesterResponse response;
    if (matches.isEmpty()) {
        response = GrokTesterResponse.createSuccess(false, Collections.<GrokTesterResponse.Match>emptyList(), pattern, string);
    } else {
        final List<GrokTesterResponse.Match> responseMatches = Lists.newArrayList();
        for (final Map.Entry<String, Object> entry : matches.entrySet()) {
            final Object value = entry.getValue();
            if (value != null) {
                responseMatches.add(GrokTesterResponse.Match.create(entry.getKey(), value.toString()));
            }
        }
        response = GrokTesterResponse.createSuccess(true, responseMatches, pattern, string);
    }
    return response;
}

Example 3 with Match

use of io.krakens.grok.api.Match in project graylog2-server by Graylog2.

the class GrokExtractor method run.

@Override
protected Result[] run(String value) {
    final Grok grok = grokPatternRegistry.cachedGrokForPattern(this.pattern, this.namedCapturesOnly);
    // the extractor instance is rebuilt every second anyway
    final Match match = grok.match(value);
    final Map<String, Object> matches = match.captureFlattened();
    final List<Result> results = new ArrayList<>(matches.size());
    for (final Map.Entry<String, Object> entry : matches.entrySet()) {
        // never add null values to the results, those don't make sense for us
        if (entry.getValue() != null) {
            results.add(new Result(entry.getValue(), entry.getKey(), -1, -1));
        }
    }
    return results.toArray(new Result[0]);
}