/*****************************************************************************
SQLJEP - Java SQL Expression Parser 0.2
November 1 2006
(c) Copyright 2006, Alexey Gaidukov
SQLJEP Author: Alexey Gaidukov
SQLJEP is based on JEP 2.24 (http://www.singularsys.com/jep/)
(c) Copyright 2002, Nathan Funk
See LICENSE.txt for license information.
*****************************************************************************/
package com.meidusa.amoeba.sqljep.function;
import java.util.Calendar;
import java.sql.*;
import static java.util.Calendar.*;
import com.meidusa.amoeba.sqljep.function.PostfixCommand;
import com.meidusa.amoeba.sqljep.ASTFunNode;
import com.meidusa.amoeba.sqljep.JepRuntime;
import com.meidusa.amoeba.sqljep.ParseException;
public class MakeTime extends PostfixCommand {
final public int getNumberOfParameters() {
return 3;
}
public Comparable<?>[] evaluate(ASTFunNode node, JepRuntime runtime) throws ParseException {
node.childrenAccept(runtime.ev, null);
Comparable<?> param3 = runtime.stack.pop();
Comparable<?> param2 = runtime.stack.pop();
Comparable<?> param1 = runtime.stack.pop();
return new Comparable<?>[]{param1,param2,param3};
}
public static Time makeTime(Comparable<?> param1, Comparable<?> param2, Comparable<?> param3, Calendar cal) throws ParseException {
if (param1 == null && param2 == null && param3 == null) {
return null;
}
if (param1 instanceof String) {
param1 = parse((String)param1);
}
if (param2 instanceof String) {
param2 = parse((String)param2);
}
if (param3 instanceof String) {
param3= parse((String)param3);
}
if (param1 instanceof Number && param2 instanceof Number && param3 instanceof Number) {
int h = ((Number)param1).intValue();
int m = ((Number)param2).intValue();
int s = ((Number)param3).intValue();
cal.clear();
cal.set(HOUR_OF_DAY, h);
cal.set(MINUTE, m);
cal.set(SECOND, s);
return new Time(cal.getTimeInMillis());
}
throw new ParseException(WRONG_TYPE+" maketime("+param1.getClass()+","+param2.getClass()+")");
}
public Comparable<?> getResult(Comparable<?>... comparables)
throws ParseException {
return makeTime(comparables[0], comparables[1], comparables[2], JepRuntime.getCalendar());
}
}