@NonNull
    @WorkerThread
    public static SearchResult getCachesByFilter(@NonNull final OCApiConnector connector, @NonNull final GeocacheFilter filter) {
        return retrieveCaches(connector, filter, SEARCH_LOAD_INITIAL, 0);
    }
Client for the OpenCaching API (Okapi).

@see <a href="http://www.opencaching.de/okapi/introduction.html">Okapi overview</a>
main/src/main/java/cgeo/geocaching/connector/oc/OkapiClient.java