/**
* Process the start of this tag.
*
* @return
* @exception JspException if a JSP exception has occurred
* @see javax.servlet.jsp.tagext.Tag#doStartTag()
*/
public int doStartTag() throws JspException {
ExpressionEvaluator eval = new ExpressionEvaluator(this, pageContext);
if (selected != null) {
selected = eval.evalString("default", selected);
}
Locale userLocale = pageContext.getRequest().getLocale();
List<LabelValue> countries = this.buildCountryList(userLocale);
if (scope != null) {
if (scope.equals("page")) {
pageContext.setAttribute(name, countries);
} else if (scope.equals("request")) {
pageContext.getRequest().setAttribute(name, countries);
} else if (scope.equals("session")) {
pageContext.getSession().setAttribute(name, countries);
} else if (scope.equals("application")) {
pageContext.getServletContext().setAttribute(name, countries);
} else {
throw new JspException("Attribute 'scope' must be: page, request, session or application");
}
} else {
StringBuffer sb = new StringBuffer();
sb.append("<select name=\"" + name + "\" id=\"" + name + "\">\n");
if (prompt != null) {
sb.append(" <option value=\"\" selected=\"selected\">");
sb.append(eval.evalString("prompt", prompt) + "</option>\n");
}
for (LabelValue country : countries) {
sb.append(" <option value=\"" + country.getValue() + "\"");
if ((selected != null) && selected.equals(country.getValue())) {
sb.append(" selected=\"selected\"");
}
sb.append(">" + country.getLabel() + "</option>\n");
}
sb.append("</select>");
try {
pageContext.getOut().write(sb.toString());
} catch (IOException io) {
throw new JspException(io);
}
}
return super.doStartTag();
}
/**
* Compares the localized labels of two LabelValues.
*
* @param o1 The first LabelValue to compare.
* @param o2 The second LabelValue to compare.
* @return The value returned by comparing the localized labels.
*/
public int compare(LabelValue o1, LabelValue o2) {
return c.compare(o1.getLabel(), o2.getLabel());
}