/**
* Copyright (C) 2010 Orbeon, Inc.
*
* This program 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 program 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.
*
* The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
*/
package org.orbeon.oxf.xforms.function;
import org.orbeon.saxon.expr.XPathContext;
import org.orbeon.saxon.functions.Component;
import org.orbeon.saxon.om.Item;
import org.orbeon.saxon.trans.XPathException;
import org.orbeon.saxon.value.*;
import org.orbeon.saxon.value.StringValue;
public class Seconds extends XFormsFunction {
private static final StringValue NAN = new StringValue("NaN");
private static final int MINUTE_COEF = 60;
private static final int HOUR_COEF = 60 * 60;
private static final int DAY_COEF = 60 * 60 * 24;
public Item evaluateItem(XPathContext context) throws XPathException {
String arg = argument[0].evaluateAsString(context).toString();
final DurationValue value;
try {
value = (DurationValue) DurationValue.makeDuration(arg).asAtomic();
} catch (XPathException e) {
return NAN;
}
// TODO: should be a decimal, like xf:seconds-from-dateTime
return new DoubleValue(getLengthInSeconds(value));
}
private double getLengthInSeconds(DurationValue value) throws XPathException {
double a = ((IntegerValue)value.getComponent(Component.DAY)).getDoubleValue() * DAY_COEF;
a += ((IntegerValue)value.getComponent(Component.HOURS)).getDoubleValue() * HOUR_COEF;
a += ((IntegerValue)value.getComponent(Component.MINUTES)).getDoubleValue() * MINUTE_COEF;
a += ((DecimalValue)value.getComponent(Component.SECONDS)).getDoubleValue();
return a;
}
}