url = "file:";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file://";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:///";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file://///";

            } else {
                putResultDataBody(dataMap, titleField, fileName);
            }
        }
        // host
        putResultDataBody(dataMap, fessConfig.getIndexFieldHost(), getHostOnFile(url));
        // site
        putResultDataBody(dataMap, fessConfig.getIndexFieldSite(), getSiteOnFile(url, urlEncoding));
        // filename
        if (StringUtil.isNotBlank(fileName)) {