@Override
    public void setup(TraceMetadataSetupContext context) {
        context.addServiceType(FastjsonConstants.SERVICE_TYPE);
        context.addAnnotationKey(FastjsonConstants.ANNOTATION_KEY_JSON_LENGTH);
    }
The type Fastjson metadata provider.

@author Victor.Zxy
@version 1.8.1
@since 2017/07/17
agent-module/plugins/fastjson/src/main/java/com/navercorp/pinpoint/plugin/fastjson/FastjsonMetadataProvider.java