Example usage for com.liferay.portal.kernel.util PortalUtil isRightToLeft

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.util PortalUtil isRightToLeft.

Prototype

public static boolean isRightToLeft(HttpServletRequest httpServletRequest) 

Source Link

Usage

From source file:com.liferay.frontend.css.rtl.servlet.internal.RTLServlet.java

License:Open Source License

protected URL getResourceURL(HttpServletRequest request) throws IOException {

    String path = URLDecoder.decode(RequestDispatcherUtil.getEffectivePath(request), StringPool.UTF8);

    URL url = _servletContextHelper.getResource(path);

    if (url == null) {
        return null;
    }//from   w ww .  ja  v a2 s.c o  m

    String languageId = request.getParameter("languageId");

    if ((languageId == null) || !PortalUtil.isRightToLeft(request)) {
        if (_log.isDebugEnabled()) {
            _log.debug("Skip because specified language " + languageId + " is not right to left");
        }

        return url;
    }

    String rtlPath = FileUtil.appendSuffix(path, "_rtl");

    URL rtlURL = _servletContextHelper.getResource(rtlPath);

    if (rtlURL != null) {
        return rtlURL;
    }

    File dataFile = _bundle.getDataFile(rtlPath);

    if (dataFile.exists() && (dataFile.lastModified() > url.openConnection().getLastModified())) {

        URI uri = dataFile.toURI();

        return uri.toURL();
    }

    CSSRTLConverter cssRTLConverter = new CSSRTLConverter(false);

    String rtl = cssRTLConverter.process(StringUtil.read(url.openStream()));

    InputStream inputStream = new ByteArrayInputStream(rtl.getBytes(StringPool.UTF8));

    OutputStream outputStream = null;

    try {
        dataFile.getParentFile().mkdirs();

        dataFile.createNewFile();

        outputStream = new FileOutputStream(dataFile);

        StreamUtil.transfer(inputStream, outputStream, false);
    } catch (IOException ioe) {
        if (_log.isWarnEnabled()) {
            _log.warn("Unable to cache RTL CSS", ioe);
        }
    } finally {
        if (outputStream != null) {
            outputStream.close();
        }
    }

    inputStream.reset();

    URI uri = dataFile.toURI();

    return uri.toURL();
}

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