@Override
        CompositeDetector createComposite(List<Detector> detectors, MimeTypes mimeTypes,
                                          ServiceLoader loader) {
            MediaTypeRegistry registry = mimeTypes.getMediaTypeRegistry();
            return new CompositeDetector(registry, detectors);
        }
Gets parameters from a given

@param el xml node which has {@link #PARAMS_TAG_NAME} child
@return Map of key values read from xml
tika-core/src/main/java/org/apache/tika/config/TikaConfig.java