import org.xml.sax.SAXNotSupportedException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * @author shinsuke
 *
 */
public class SitemapsHelper {
    private static final Logger logger = LoggerFactory.getLogger(SitemapsHelper.class);

    protected int preloadSize = 512;

    public boolean isValid(final InputStream in) {
        return isValid(in, true);
    }

                .singleton("urlConvertHelper", UrlConvertHelper.class).singleton("intervalController", DefaultIntervalController.class)
                .singleton("sitemapsHelper", SitemapsHelper.class).singleton("logHelper", LogHelperImpl.class)
                .singleton("encodingHelper", EncodingHelper.class).singleton("contentLengthHelper", ContentLengthHelper.class)