iText 5 itextpdf.jar Source Code

itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

✍: FYIcenter.com

com/itextpdf/text/pdf/PdfDate.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import java.util.Calendar;
import java.util.GregorianCalendar;
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 DATE_SPACE[] = {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 the date in the format D:YYYYMMDDHHmmSSOHH'mm'
     * @return a formatted date
     */
    public static String getW3CDate(String d) {
        if (d.startsWith("D:"))
            d = d.substring(2);
        StringBuffer sb = new StringBuffer();
        if (d.length() < 4)
            return "0000";
        sb.append(d.substring(0, 4)); //year
        d = d.substring(4);
        if (d.length() < 2)
            return sb.toString();
        sb.append('-').append(d.substring(0, 2)); //month
        d = d.substring(2);
        if (d.length() < 2)
            return sb.toString();
        sb.append('-').append(d.substring(0, 2)); //day
        d = d.substring(2);
        if (d.length() < 2)
            return sb.toString();
        sb.append('T').append(d.substring(0, 2)); //hour
        d = d.substring(2);
        if (d.length() < 2) {
            sb.append(":00Z");
            return sb.toString();
        }
        sb.append(':').append(d.substring(0, 2)); //minute
        d = d.substring(2);
        if (d.length() < 2) {
            sb.append('Z');
            return sb.toString();
        }
        sb.append(':').append(d.substring(0, 2)); //second
        d = d.substring(2);
        if (d.startsWith("-") || d.startsWith("+")) {
            String sign = d.substring(0, 1);
            d = d.substring(1);
            String h = "00";
            String m = "00";
            if (d.length() >= 2) {
                h = d.substring(0, 2);
                if (d.length() > 2) {
                    d = d.substring(3);
                    if (d.length() >= 2)
                        m = d.substring(0, 2);
                }
                sb.append(sign).append(h).append(':').append(m);
                return sb.toString();
            }
        }
        sb.append('Z');
        return sb.toString();
    }
    
    /**
     * 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 < DATE_SPACE.length; k += 3) {
                if (idx >= slen)
                    break;
                calendar.set(DATE_SPACE[k], Integer.parseInt(s.substring(idx, idx + DATE_SPACE[k + 1])) + DATE_SPACE[k + 2]);
                idx += DATE_SPACE[k + 1];
            }
            return calendar;
        }
        catch (Exception e) {
            return null;
        }
    }
}

com/itextpdf/text/pdf/PdfDate.java

 

⇒ iText-2.1.6.jar - iText, a JAVA-PDF library

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2021-07-03, 48101👍, 0💬