odk/examples/DevelopersGuide/Forms/TimeValidator.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 public class TimeValidator extends ControlValidator
  22 {
  23
  24     /** Creates a new instance of NumericValidator */
  25     public TimeValidator( )
  26     {
  27     }
  28
  29     public String explainInvalid( Object Value )
  30     {
  31         try
  32         {
  33             if ( isVoid( Value ) )
  34                 return "empty input";
  35
  36             com.sun.star.util.Time timeValue = (com.sun.star.util.Time)Value;
  37             if ( isInvalidTime( timeValue ) )
  38                 return "this is no valid time";
  39             if ( !isFullHour( timeValue ) )
  40                 return "time must denote a full hour";
  41         }
  42         catch( java.lang.Exception e )
  43         {
  44             return "this is no valid time";
  45         }
  46         return "";
  47     }
  48
  49     public boolean isValid( Object Value )
  50     {
  51         try
  52         {
  53             if ( isVoid( Value ) )
  54                 return false;
  55
  56             com.sun.star.util.Time timeValue = (com.sun.star.util.Time)
  57                 com.sun.star.uno.AnyConverter.toObject(
  58                     com.sun.star.util.Time.class, Value);
  59             if ( isInvalidTime( timeValue ) )
  60                 return false;
  61             if ( !isFullHour( timeValue ) )
  62                 return false;
  63             return true;
  64         }
  65         catch( java.lang.Exception e )
  66         {
  67             e.printStackTrace( System.err );
  68         }
  69         return false;
  70     }
  71
  72     private boolean isInvalidTime( com.sun.star.util.Time timeValue )
  73     {
  74         return ( timeValue.Hours == -1 ) && ( timeValue.Minutes == -1 ) && ( timeValue.Seconds == -1 ) && ( timeValue.NanoSeconds == -1 );
  75     }
  76
  77     private boolean isFullHour( com.sun.star.util.Time timeValue )
  78     {
  79         return ( timeValue.Minutes == 0 ) && ( timeValue.Seconds == 0 ) && ( timeValue.NanoSeconds == 0 );
  80     }
  81 }
  82
  83 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */