public static String extension(String fileName, boolean stripDot) {
if (ChannelUtil.empty(fileName)) return null;
int pos = fileName.lastIndexOf('.');
if ((pos > 0) && (pos < fileName.length() - 1))
return fileName.substring(pos + (stripDot ? 1 : 0));
return null;
}
public static int calcCont(String[] props) {
String lim = ChannelUtil.getPropertyValue(props, "continue_limit");
int ret = Channels.DeafultContLim;
if (!ChannelUtil.empty(lim)) {
try {
ret = Integer.parseInt(lim);
} catch (Exception e) {
}
}
if (ret < 0) ret = Channels.DeafultContLim;
return ret;
}