/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
/**
* Implements the CFML Function datepart
*/
package lucee.runtime.functions.dateTime;
import java.util.TimeZone;
import lucee.runtime.PageContext;
import lucee.runtime.exp.ExpressionException;
import lucee.runtime.exp.FunctionException;
import lucee.runtime.exp.PageException;
import lucee.runtime.ext.function.BIF;
import lucee.runtime.ext.function.Function;
import lucee.runtime.op.Caster;
import lucee.runtime.type.dt.DateTime;
public final class DatePart extends BIF {
private static final long serialVersionUID = -4203375459570986511L;
public static double call(PageContext pc , String datepart, DateTime date) throws ExpressionException {
return call(pc, datepart, date, null);
}
public static double call(PageContext pc, String datepart, DateTime date, TimeZone tz) throws ExpressionException {
datepart=datepart.toLowerCase();
char first=datepart.length()==1?datepart.charAt(0):(char)0;
if(datepart.equals("yyyy")) return Year.call(pc,date,tz);
else if(datepart.equals("ww")) return Week.call(pc,date,tz);
else if(first=='w') return DayOfWeek.call(pc,date,tz);
else if(first=='q') return Quarter.call(pc,date,tz);
else if(first=='m') return Month.call(pc,date,tz);
else if(first=='y') return DayOfYear.call(pc,date,tz);
else if(first=='d') return Day.call(pc,date,tz);
else if(first=='h') return Hour.call(pc,date,tz);
else if(first=='n') return Minute.call(pc,date,tz);
else if(first=='s') return Second.call(pc,date,tz);
else if(first=='l') return MilliSecond.call(pc, date,tz);
throw new ExpressionException("invalid datepart type ["+datepart+"] for function datePart");
}
@Override
public Object invoke(PageContext pc, Object[] args) throws PageException {
if(args.length==2)
return call(pc, Caster.toString(args[0]), Caster.toDateTime(args[1],null));
if(args.length==3)
return call(pc, Caster.toString(args[0]), Caster.toDateTime(args[1],null), Caster.toTimeZone(args[2]));
throw new FunctionException(pc,"DatePart",2,3,args.length);
}
}