@SuppressWarnings("unchecked")
    private void updateConfig(final Reader contentRender) {
        dictionary = new Yaml(new SafeConstructor(new LoaderOptions())).load(contentRender);
        if (dictionary == null) {
            dictionary = Collections.emptyMap();
        }
    }
Apdex threshold configuration dictionary adapter. Looking up a service apdex threshold from dynamic config service.
oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/ApdexThresholdConfig.java