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Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PdfDate.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PdfDate.java | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PdfDate.java b/src/main/java/com/lowagie/text/pdf/PdfDate.java new file mode 100644 index 0000000..5c26880 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfDate.java @@ -0,0 +1,210 @@ +/*
+ * $Id: PdfDate.java,v 1.63 2005/09/04 16:20:01 psoares33 Exp $
+ * $Name: $
+ *
+ * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above. If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+
+package com.lowagie.text.pdf;
+
+import java.text.SimpleDateFormat;
+import java.util.GregorianCalendar;
+import java.util.Calendar;
+import java.util.SimpleTimeZone;
+
+/**
+ * <CODE>PdfDate</CODE> is the PDF date object.
+ * <P>
+ * PDF defines a standard date format. The PDF date format closely follows the format
+ * defined by the international standard ASN.1 (Abstract Syntax Notation One, defined
+ * in CCITT X.208 or ISO/IEC 8824). A date is a <CODE>PdfString</CODE> of the form:
+ * <P><BLOCKQUOTE>
+ * (D: YYYYMMDDHHmmSSOHH'mm')
+ * </BLOCKQUOTE><P>
+ * This object is described in the 'Portable Document Format Reference Manual version 1.3'
+ * section 7.2 (page 183-184)
+ *
+ * @see PdfString
+ * @see java.util.GregorianCalendar
+ */
+
+public class PdfDate extends PdfString {
+
+ private static final int dateSpace[] = {Calendar.YEAR, 4, 0, Calendar.MONTH, 2, -1, Calendar.DAY_OF_MONTH, 2, 0,
+ Calendar.HOUR_OF_DAY, 2, 0, Calendar.MINUTE, 2, 0, Calendar.SECOND, 2, 0};
+
+ // constructors
+
+/**
+ * Constructs a <CODE>PdfDate</CODE>-object.
+ *
+ * @param d the date that has to be turned into a <CODE>PdfDate</CODE>-object
+ */
+
+ public PdfDate(Calendar d) {
+ super();
+ StringBuffer date = new StringBuffer("D:");
+ date.append(setLength(d.get(Calendar.YEAR), 4));
+ date.append(setLength(d.get(Calendar.MONTH) + 1, 2));
+ date.append(setLength(d.get(Calendar.DATE), 2));
+ date.append(setLength(d.get(Calendar.HOUR_OF_DAY), 2));
+ date.append(setLength(d.get(Calendar.MINUTE), 2));
+ date.append(setLength(d.get(Calendar.SECOND), 2));
+ int timezone = (d.get(Calendar.ZONE_OFFSET) + d.get(Calendar.DST_OFFSET)) / (60 * 60 * 1000);
+ if (timezone == 0) {
+ date.append("Z");
+ }
+ else if (timezone < 0) {
+ date.append("-");
+ timezone = -timezone;
+ }
+ else {
+ date.append("+");
+ }
+ if (timezone != 0) {
+ date.append(setLength(timezone, 2)).append("'");
+ int zone = Math.abs((d.get(Calendar.ZONE_OFFSET) + d.get(Calendar.DST_OFFSET)) / (60 * 1000)) - (timezone * 60);
+ date.append(setLength(zone, 2)).append("'");
+ }
+ value = date.toString();
+ }
+
+/**
+ * Constructs a <CODE>PdfDate</CODE>-object, representing the current day and time.
+ */
+
+ public PdfDate() {
+ this(new GregorianCalendar());
+ }
+
+/**
+ * Adds a number of leading zeros to a given <CODE>String</CODE> in order to get a <CODE>String</CODE>
+ * of a certain length.
+ *
+ * @param i a given number
+ * @param length the length of the resulting <CODE>String</CODE>
+ * @return the resulting <CODE>String</CODE>
+ */
+
+ private String setLength(int i, int length) { // 1.3-1.4 problem fixed by Finn Bock
+ StringBuffer tmp = new StringBuffer();
+ tmp.append(i);
+ while (tmp.length() < length) {
+ tmp.insert(0, "0");
+ }
+ tmp.setLength(length);
+ return tmp.toString();
+ }
+
+ /**
+ * Gives the W3C format of the PdfDate.
+ * @return a formatted date
+ */
+ public String getW3CDate() {
+ return getW3CDate(value);
+ }
+
+ /**
+ * Gives the W3C format of the PdfDate.
+ * @param d
+ * @return a formatted date
+ */
+ public static String getW3CDate(String d) {
+ SimpleDateFormat w3c = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
+ Calendar c = decode(d);
+ return w3c.format(c.getTime());
+ }
+
+ /**
+ * Converts a PDF string representing a date into a Calendar.
+ * @param s the PDF string representing a date
+ * @return a <CODE>Calendar</CODE> representing the date or <CODE>null</CODE> if the string
+ * was not a date
+ */
+ public static Calendar decode(String s) {
+ try {
+ if (s.startsWith("D:"))
+ s = s.substring(2);
+ GregorianCalendar calendar;
+ int slen = s.length();
+ int idx = s.indexOf('Z');
+ if (idx >= 0) {
+ slen = idx;
+ calendar = new GregorianCalendar(new SimpleTimeZone(0, "ZPDF"));
+ }
+ else {
+ int sign = 1;
+ idx = s.indexOf('+');
+ if (idx < 0) {
+ idx = s.indexOf('-');
+ if (idx >= 0)
+ sign = -1;
+ }
+ if (idx < 0)
+ calendar = new GregorianCalendar();
+ else {
+ int offset = Integer.parseInt(s.substring(idx + 1, idx + 3)) * 60;
+ if (idx + 5 < s.length())
+ offset += Integer.parseInt(s.substring(idx + 4, idx + 6));
+ calendar = new GregorianCalendar(new SimpleTimeZone(offset * sign * 60000, "ZPDF"));
+ slen = idx;
+ }
+ }
+ calendar.clear();
+ idx = 0;
+ for (int k = 0; k < dateSpace.length; k += 3) {
+ if (idx >= slen)
+ break;
+ calendar.set(dateSpace[k], Integer.parseInt(s.substring(idx, idx + dateSpace[k + 1])) + dateSpace[k + 2]);
+ idx += dateSpace[k + 1];
+ }
+ return calendar;
+ }
+ catch (Exception e) {
+ return null;
+ }
+ }
+}
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