001 /**
002 * The contents of this file are subject to the Mozilla Public License Version 1.1
003 * (the "License"); you may not use this file except in compliance with the License.
004 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
005 * Software distributed under the License is distributed on an "AS IS" basis,
006 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
007 * specific language governing rights and limitations under the License.
008 *
009 * The Original Code is "DataTypeUtil.java". Description:
010 * "This class is used to provide utility functions for other datatype classes and methods."
011 *
012 * The Initial Developer of the Original Code is University Health Network. Copyright (C)
013 * 2001. All Rights Reserved.
014 *
015 * Contributor(s): ______________________________________.
016 *
017 * Alternatively, the contents of this file may be used under the terms of the
018 * GNU General Public License (the "GPL"), in which case the provisions of the GPL are
019 * applicable instead of those above. If you wish to allow use of your version of this
020 * file only under the terms of the GPL and not to allow others to use your version
021 * of this file under the MPL, indicate your decision by deleting the provisions above
022 * and replace them with the notice and other provisions required by the GPL License.
023 * If you do not delete the provisions above, a recipient may use your version of
024 * this file under either the MPL or the GPL.
025 *
026 */
027
028 package ca.uhn.hl7v2.model;
029
030 import java.util.*;
031
032 /**
033 * This class is used to provide utility functions for other datatype classes and methods.
034 */
035
036 public class DataTypeUtil {
037
038 public DataTypeUtil() {
039 }//end zero arg constructor
040
041
042 /**
043 * This method will preappend the zeros to the beginning of num such that the total length
044 * equals totalDigitLength. It will also return the string representation of the new number.
045 */
046 public static String preAppendZeroes(int num, int totalDigitLength){
047 /* preappend the zeros to the beginning of num such that the total length
048 equals totalDigitLength. Return the string representation of the new number*/
049 String a = String.valueOf(num);
050 if (a.length() >= totalDigitLength)
051 return a;
052 else {
053 int preAppendAmnt = totalDigitLength - a.length();
054 for (int j=0; j < preAppendAmnt; j++){
055 a = "0"+a;
056 }//end for
057 return a;
058 }//end else
059 }//end method
060
061
062 /**
063 * This method will return a signed four digit integer indicating the local
064 * GMT offset. This is the HL7 Offset format in integer representation.
065 */
066 public static int getLocalGMTOffset(){
067 int offSet;
068 GregorianCalendar currentTime = new GregorianCalendar();
069 int gmtOffSet = currentTime.get(GregorianCalendar.ZONE_OFFSET);
070 int offSetSignInt;
071 if (gmtOffSet < 0 ){
072 offSetSignInt = -1;
073 }
074 else{
075 offSetSignInt = 1;
076 }
077 //get the absolute value of the gmtOffSet
078 int absGmtOffSet = Math.abs(gmtOffSet);
079 int gmtOffSetHours = absGmtOffSet/(3600*1000);
080 int gmtOffSetMin = (absGmtOffSet / 60000) % (60);
081 //return the offset value HL7 format
082 offSet = ((gmtOffSetHours*100)+gmtOffSetMin) * offSetSignInt;
083 return offSet;
084 }//end method
085
086
087 }//end class
088