/** Ssets the locale context-wide based on a call to {@link JiveGlobals#getLocale()}. */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
final String pathInfo = ((HttpServletRequest) request).getPathInfo();
if (pathInfo == null) {
// Note, putting the locale in the application at this point is a little overkill
// (ie, every user who hits this filter will do this). Eventually, it might make
// sense to just set the locale in the user's session and if that's done we might
// want to honor a preference to get the user's locale based on request headers.
// For now, this is just a convenient place to set the locale globally.
Config.set(context, Config.FMT_LOCALE, JiveGlobals.getLocale());
} else {
try {
String[] parts = pathInfo.split("/");
String pluginName = parts[1];
ResourceBundle bundle = LocaleUtils.getPluginResourceBundle(pluginName);
LocalizationContext ctx = new LocalizationContext(bundle, JiveGlobals.getLocale());
Config.set(request, Config.FMT_LOCALIZATION_CONTEXT, ctx);
} catch (Exception e) {
// Note, putting the locale in the application at this point is a little overkill
// (ie, every user who hits this filter will do this). Eventually, it might make
// sense to just set the locale in the user's session and if that's done we might
// want to honor a preference to get the user's locale based on request headers.
// For now, this is just a convenient place to set the locale globally.
Config.set(context, Config.FMT_LOCALE, JiveGlobals.getLocale());
}
}
// Move along:
chain.doFilter(request, response);
}
/**
* Reformats a string where lines that are longer than <tt>width</tt> are split apart at the
* earliest wordbreak or at maxLength, whichever is sooner. If the width specified is less than 5
* or greater than the input Strings length the string will be returned as is.
*
* <p>Please note that this method can be lossy - trailing spaces on wrapped lines may be trimmed.
*
* @param input the String to reformat.
* @param width the maximum length of any one line.
* @return a new String with reformatted as needed.
*/
public static String wordWrap(String input, int width, Locale locale) {
// protect ourselves
if (input == null) {
return "";
} else if (width < 5) {
return input;
} else if (width >= input.length()) {
return input;
}
// default locale
if (locale == null) {
locale = JiveGlobals.getLocale();
}
StringBuilder buf = new StringBuilder(input);
boolean endOfLine = false;
int lineStart = 0;
for (int i = 0; i < buf.length(); i++) {
if (buf.charAt(i) == '\n') {
lineStart = i + 1;
endOfLine = true;
}
// handle splitting at width character
if (i > lineStart + width - 1) {
if (!endOfLine) {
int limit = i - lineStart - 1;
BreakIterator breaks = BreakIterator.getLineInstance(locale);
breaks.setText(buf.substring(lineStart, i));
int end = breaks.last();
// if the last character in the search string isn't a space,
// we can't split on it (looks bad). Search for a previous
// break character
if (end == limit + 1) {
if (!Character.isWhitespace(buf.charAt(lineStart + end))) {
end = breaks.preceding(end - 1);
}
}
// if the last character is a space, replace it with a \n
if (end != BreakIterator.DONE && end == limit + 1) {
buf.replace(lineStart + end, lineStart + end + 1, "\n");
lineStart = lineStart + end;
}
// otherwise, just insert a \n
else if (end != BreakIterator.DONE && end != 0) {
buf.insert(lineStart + end, '\n');
lineStart = lineStart + end + 1;
} else {
buf.insert(i, '\n');
lineStart = i + 1;
}
} else {
buf.insert(i, '\n');
lineStart = i + 1;
endOfLine = false;
}
}
}
return buf.toString();
}
