Convert.java

package humanize.taglibs.util;

import javax.servlet.jsp.JspException;

import org.apache.taglibs.standard.resources.Resources;

public final class Convert
{
    public static Number asNumber(Object input) throws JspException
    {

        if (input instanceof String)
        {
            try
            {
                String istr = (String) input;
                return (istr.indexOf('.') != -1) ? Double.valueOf(istr) : Long.valueOf(istr);
            } catch (NumberFormatException nfe)
            {
                throw new JspException(Resources.getMessage("FORMAT_NUMBER_PARSE_ERROR", input), nfe);
            }
        }

        return (Number) input;

    }
}