1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 package integration.forms; 24 25 import com.sun.star.form.binding.*; 26 27 /** 28 * 29 * @author fs@openoffice.org 30 */ 31 public class DateValidator extends integration.forms.ControlValidator 32 { 33 34 /** Creates a new instance of NumericValidator */ DateValidator( )35 public DateValidator( ) 36 { 37 } 38 explainInvalid( Object Value )39 public String explainInvalid( Object Value ) 40 { 41 try 42 { 43 if ( isVoid( Value ) ) 44 return "empty input"; 45 46 com.sun.star.util.Date dateValue = (com.sun.star.util.Date)Value; 47 if ( isDedicatedInvalidDate( dateValue ) ) 48 return "this is no valid date"; 49 50 if ( !isNextMonthsDate( dateValue ) ) 51 return "date must denote a day in the current month"; 52 } 53 catch( java.lang.Exception e ) 54 { 55 return "oops. What did you enter for this to happen?"; 56 } 57 return ""; 58 } 59 isValid( Object Value )60 public boolean isValid( Object Value ) 61 { 62 try 63 { 64 if ( isVoid( Value ) ) 65 return false; 66 67 com.sun.star.util.Date dateValue = (com.sun.star.util.Date) 68 com.sun.star.uno.AnyConverter.toObject( 69 com.sun.star.util.Date.class, Value); 70 if ( isDedicatedInvalidDate( dateValue ) ) 71 return false; 72 73 if ( !isNextMonthsDate( dateValue ) ) 74 return false; 75 return true; 76 } 77 catch( java.lang.Exception e ) 78 { 79 e.printStackTrace( System.err ); 80 } 81 return false; 82 } 83 isDedicatedInvalidDate( com.sun.star.util.Date dateValue )84 private boolean isDedicatedInvalidDate( com.sun.star.util.Date dateValue ) 85 { 86 return ( dateValue.Day == 0 ) && ( dateValue.Month == 0 ) && ( dateValue.Year == 0 ); 87 } 88 isNextMonthsDate( com.sun.star.util.Date dateValue )89 private boolean isNextMonthsDate( com.sun.star.util.Date dateValue ) 90 { 91 int overallMonth = dateValue.Year * 12 + dateValue.Month - 1; 92 93 int todaysMonth = new java.util.Date().getMonth(); 94 int todaysYear = new java.util.Date().getYear() + 1900; 95 int todaysOverallMonth = todaysYear * 12 + todaysMonth; 96 97 return overallMonth == todaysOverallMonth; 98 } 99 } 100