001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 Echo Three, LLC
003//
004// Licensed under the Apache License, Version 2.0 (the "License");
005// you may not use this file except in compliance with the License.
006// You may obtain a copy of the License at
007//
008//     http://www.apache.org/licenses/LICENSE-2.0
009//
010// Unless required by applicable law or agreed to in writing, software
011// distributed under the License is distributed on an "AS IS" BASIS,
012// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013// See the License for the specific language governing permissions and
014// limitations under the License.
015// --------------------------------------------------------------------------------
016
017package com.echothree.util.common.string;
018
019import java.time.LocalDate;
020
021public class DateFormatter {
022    
023    private final java.time.format.DateTimeFormatter inDateTimeFormatter = java.time.format.DateTimeFormatter.ofPattern("yyyyMMdd");
024    private final java.time.format.DateTimeFormatter outDateTimeFormatter;
025
026    /** Creates a new instance of DateFormatter */
027    public DateFormatter(String pattern) {
028        outDateTimeFormatter = java.time.format.DateTimeFormatter.ofPattern(pattern);
029    }
030    
031    public String format(Integer date) {
032        String result = null;
033        
034        if(date != null) {
035            LocalDate localDate = LocalDate.parse(date.toString(), inDateTimeFormatter);
036
037            result = outDateTimeFormatter.format(localDate);
038        }
039        
040        return result;
041    }
042    
043}