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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: DateValidator.java,v $
* $Revision: 1.5 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
import com.sun.star.form.binding.*;
/**
*
* @author fs@openoffice.org
*/
public class DateValidator extends ControlValidator
{
/** Creates a new instance of NumericValidator */
public DateValidator( )
{
}
public String explainInvalid( Object Value )
{
try
{
if ( isVoid( Value ) )
return "empty input";
com.sun.star.util.Date dateValue = (com.sun.star.util.Date)Value;
if ( isDedicatedInvalidDate( dateValue ) )
return "this is no valid date";
if ( !isNextMonthsDate( dateValue ) )
return "date must denote a day in the current month";
}
catch( java.lang.Exception e )
{
return "oops. What did you enter for this to happen?";
}
return "";
}
public boolean isValid( Object Value )
{
try
{
if ( isVoid( Value ) )
return false;
com.sun.star.util.Date dateValue = (com.sun.star.util.Date)
com.sun.star.uno.AnyConverter.toObject(
com.sun.star.util.Date.class, Value);
if ( isDedicatedInvalidDate( dateValue ) )
return false;
if ( !isNextMonthsDate( dateValue ) )
return false;
return true;
}
catch( java.lang.Exception e )
{
e.printStackTrace( System.err );
}
return false;
}
private boolean isDedicatedInvalidDate( com.sun.star.util.Date dateValue )
{
return ( dateValue.Day == 0 ) && ( dateValue.Month == 0 ) && ( dateValue.Year == 0 );
}
private boolean isNextMonthsDate( com.sun.star.util.Date dateValue )
{
int overallMonth = dateValue.Year * 12 + dateValue.Month - 1;
int todaysMonth = new java.util.Date().getMonth();
int todaysYear = new java.util.Date().getYear() + 1900;
int todaysOverallMonth = todaysYear * 12 + todaysMonth;
return overallMonth == todaysOverallMonth;
}
}
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