private InMemoryDatabase getDb()

in geronimo-microprofile-reporter/src/main/java/org/apache/geronimo/microprofile/reporter/storage/plugins/metrics/MetricsService.java [103:116]

• 14 lines of code
• 3 McCabe index (conditional complexity)

    private <T> InMemoryDatabase<T> getDb(final Map<String, InMemoryDatabase<T>> registry,
                                          final String virtualName, final MetricRegistry source,
                                          final String key) {
        InMemoryDatabase<T> db = registry.get(virtualName);
        if (db == null) {
            db = new InMemoryDatabase<>(database.getAlpha(), database.getBucketSize(),
                    ofNullable(source.getMetadata().get(key).getUnit()).orElse(""));
            final InMemoryDatabase<T> existing = registry.putIfAbsent(virtualName, db);
            if (existing != null) {
                db = existing;
            }
        }
        return db;
    }