001    package railo.runtime.functions.international;
002    
003    import java.text.DateFormat;
004    import java.text.ParseException;
005    import java.util.Locale;
006    import java.util.TimeZone;
007    
008    import railo.commons.date.TimeZoneUtil;
009    import railo.commons.i18n.FormatUtil;
010    import railo.commons.lang.StringUtil;
011    import railo.runtime.PageContext;
012    import railo.runtime.exp.PageException;
013    import railo.runtime.ext.function.Function;
014    import railo.runtime.i18n.LocaleFactory;
015    import railo.runtime.op.Caster;
016    import railo.runtime.op.date.DateCaster;
017    import railo.runtime.type.dt.DateTime;
018    import railo.runtime.type.dt.DateTimeImpl;
019    
020    /**
021     * Implements the CFML Function dateformat
022     */
023    public final class LSTimeFormat implements Function {
024            
025            /**
026             * @param pc
027             * @param o
028             * @return
029             * @throws PageException
030             */
031            public static String call(PageContext pc , Object o) throws PageException {
032                    return _call(pc, o, "short", pc.getLocale(),pc.getTimeZone());
033            }
034            
035            public static String call(PageContext pc , Object o, String mask) throws PageException {
036                    return _call(pc, o, mask, pc.getLocale(),pc.getTimeZone());
037            }
038            public static String call(PageContext pc , Object o, String mask,String strLocale) throws PageException {
039                    return _call(pc, o, mask, LocaleFactory.getLocale(strLocale),pc.getTimeZone());
040            }
041            public static String call(PageContext pc , Object o, String mask,String strLocale,String strTimezone) throws PageException {
042                    return _call(pc, o, mask, 
043                                    strLocale==null?pc.getLocale():LocaleFactory.getLocale(strLocale),
044                                    strTimezone==null?pc.getTimeZone():TimeZoneUtil.toTimeZone(strTimezone));
045            }
046    
047            private static String _call(PageContext pc, Object o, String mask,Locale locale,TimeZone tz) throws PageException {
048            if(o instanceof String && StringUtil.isEmpty((String)o,true)) return "";
049            return new railo.runtime.format.TimeFormat(locale).format(toTimeLS(locale, tz, o),mask,tz);
050            }
051            
052            
053            private static DateTime toTimeLS(Locale locale, TimeZone timeZone, Object object) throws PageException {
054                    if(object instanceof DateTime) return (DateTime) object;
055                    if(object instanceof CharSequence) {
056                            String str=Caster.toString(object);
057                            
058                            DateFormat[] formats=FormatUtil.getTimeFormats(locale,timeZone,true);
059                            for(int i=0;i<formats.length;i++) {
060                                    try {
061                                            return new DateTimeImpl(formats[i].parse(str).getTime(),false);
062                                    } 
063                                    catch (ParseException e) {}
064                            }
065                            
066                    }
067                    return DateCaster.toDateAdvanced(object,timeZone);
068            }
069            
070            
071    }