Function buildMatchIndex

src/go/plugin/framework/chartengine/matcher.go:45–71

(charts []program.Chart)

}

func buildMatchIndex(charts []program.Chart) matchIndex {
	index := matchIndex{
		chartsByID:       make(map[string]program.Chart, len(charts)),
		byMetricName:     make(map[string][]routeCandidate),
		wildcardMatchers: make([]routeCandidate, 0),
	}

	for _, chart := range charts {
		index.chartsByID[chart.TemplateID] = chart
		for i, dim := range chart.Dimensions {
			candidate := routeCandidate{
				chartTemplateID: chart.TemplateID,
				dimensionIndex:  i,
				dimension:       dim,
			}
			if len(dim.Selector.MetricNames) == 0 {
				index.wildcardMatchers = append(index.wildcardMatchers, candidate)
				continue
			}
			for _, metricName := range dim.Selector.MetricNames {
				index.byMetricName[metricName] = append(index.byMetricName[metricName], candidate)
			}
		}
	}

	return index
}

type routeCache = routecache.RouteCache[routeBinding]