1 /**
2 * The contents of this file are subject to the Mozilla Public License Version 1.1
3 * (the "License"); you may not use this file except in compliance with the License.
4 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
5 * Software distributed under the License is distributed on an "AS IS" basis,
6 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
7 * specific language governing rights and limitations under the License.
8 *
9 * The Original Code is "DataTypeUtil.java". Description:
10 * "This class is used to provide utility functions for other datatype classes and methods."
11 *
12 * The Initial Developer of the Original Code is University Health Network. Copyright (C)
13 * 2001. All Rights Reserved.
14 *
15 * Contributor(s): ______________________________________.
16 *
17 * Alternatively, the contents of this file may be used under the terms of the
18 * GNU General Public License (the "GPL"), in which case the provisions of the GPL are
19 * applicable instead of those above. If you wish to allow use of your version of this
20 * file only under the terms of the GPL and not to allow others to use your version
21 * of this file under the MPL, indicate your decision by deleting the provisions above
22 * and replace them with the notice and other provisions required by the GPL License.
23 * If you do not delete the provisions above, a recipient may use your version of
24 * this file under either the MPL or the GPL.
25 *
26 */
27
28 package ca.uhn.hl7v2.model;
29
30 import java.util.*;
31
32 /**
33 * This class is used to provide utility functions for other datatype classes and methods.
34 */
35
36 public class DataTypeUtil {
37
38 public DataTypeUtil() {
39 }
40
41
42 /**
43 * Preappend the zeros to the beginning of num such that the total length
44 * equals totalDigitLength and return the string representation of the new number
45 *
46 * @param num number
47 * @param totalDigitLength number of digits
48 * @return string representation of the new number
49 */
50 public static String preAppendZeroes(int num, int totalDigitLength) {
51 return (totalDigitLength == 0) ?
52 Integer.toString(num) :
53 String.format(String.format("%%0%dd", totalDigitLength), num);
54 }
55
56
57 /**
58 * Return a signed four digit integer indicating the local
59 * GMT offset. This is the HL7 Offset format in integer representation.
60 *
61 * @return a signed four digit integer indicating the local GMT offset
62 */
63 public static int getLocalGMTOffset() {
64 GregorianCalendar currentTime = new GregorianCalendar();
65 int gmtOffSet = currentTime.get(GregorianCalendar.ZONE_OFFSET);
66 int offSetSignInt = gmtOffSet < 0 ? -1 : 1;
67 //get the absolute value of the gmtOffSet
68 int absGmtOffSet = Math.abs(gmtOffSet);
69 int gmtOffSetHours = absGmtOffSet / (3600 * 1000);
70 int gmtOffSetMin = (absGmtOffSet / 60000) % (60);
71 // return the offset value HL7 format
72 return ((gmtOffSetHours * 100) + gmtOffSetMin) * offSetSignInt;
73 }
74
75
76 }
77