001 /** 002 * Implements the Cold Fusion Function lsisdate 003 */ 004 package railo.runtime.functions.international; 005 006 import java.util.Date; 007 import java.util.Locale; 008 import java.util.TimeZone; 009 010 import railo.commons.date.TimeZoneUtil; 011 import railo.runtime.PageContext; 012 import railo.runtime.exp.ExpressionException; 013 import railo.runtime.ext.function.Function; 014 import railo.runtime.i18n.LocaleFactory; 015 import railo.runtime.op.Decision; 016 017 public final class LSIsDate implements Function { 018 019 private static final long serialVersionUID = -8517171925554806088L; 020 021 022 public static boolean call(PageContext pc , Object object) { 023 return call(pc, object, pc.getLocale(),pc.getTimeZone()); 024 } 025 026 public static boolean call(PageContext pc , Object object,String strLocale) throws ExpressionException { 027 return call(pc, object, LocaleFactory.getLocale(strLocale),pc.getTimeZone()); 028 } 029 public static boolean call(PageContext pc , Object object,String strLocale,String strTimezone) throws ExpressionException { 030 return call(pc, object, 031 strLocale==null?pc.getLocale():LocaleFactory.getLocale(strLocale), 032 strTimezone==null?pc.getTimeZone():TimeZoneUtil.toTimeZone(strTimezone)); 033 } 034 035 036 private static boolean call(PageContext pc , Object object,Locale locale,TimeZone tz) { 037 if(object instanceof Date) return true; 038 else if(object instanceof String) { 039 String str=object.toString(); 040 if(str.length()<2) return false; 041 //print.out(Caster.toDateTime(locale,str,pc.getTimeZone(),null)); 042 return Decision.isDate(str,locale,tz,locale.equals(Locale.US)); 043 //return Caster.toDateTime(locale,str,pc.getTimeZone(),null)!=null; 044 } 045 return false; 046 } 047 048 }