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iText io.jar Source Code
io.jar is a component in iText Java library to provide input/output functionalities. iText Java library allows you to generate and manage PDF documents.
The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.
You can compile it to generate your JAR file, using io.pom as the build configuration file.
The source code of io-7.1.4.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/io/util/HashCode.java
/* This file is part of the iText (R) project. Copyright (c) 1998-2018 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.io.util; /** * This class is a convenience method to sequentially calculate hash code of the * object based on the field values. The result depends on the order of elements * appended. The exact formula is the same as for * <code>java.util.List.hashCode</code>. * * If you need order independent hash code just summate, multiply or XOR all * elements. * * <p> * Suppose we have class: * * <pre><code> * class Thing { * long id; * String name; * float weight; * } * </code></pre> * * The hash code calculation can be expressed in 2 forms. * * <p> * For maximum performance: * * <pre><code> * public int hashCode() { * int hashCode = HashCode.EMPTY_HASH_CODE; * hashCode = HashCode.combine(hashCode, id); * hashCode = HashCode.combine(hashCode, name); * hashCode = HashCode.combine(hashCode, weight); * return hashCode; * } * </code></pre> * * <p> * For convenience: * <pre><code> * public int hashCode() { * return new HashCode().append(id).append(name).append(weight).hashCode(); * } * </code></pre> * * @see java.util.List#hashCode() */ public final class HashCode { /** * The hashCode value before any data is appended, equals to 1. * @see java.util.List#hashCode() */ public static final int EMPTY_HASH_CODE = 1; private int hashCode = EMPTY_HASH_CODE; /** * Returns accumulated hashCode */ @Override public final int hashCode() { return hashCode; } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, boolean value) { int v = value ? 1231 : 1237; return combine(hashCode, v); } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, long value) { int v = (int) (value ^ (value >>> 32)); return combine(hashCode, v); } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, float value) { int v = Float.floatToIntBits(value); return combine(hashCode, v); } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, double value) { long v = Double.doubleToLongBits(value); return combine(hashCode, v); } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, Object value) { return combine(hashCode, value.hashCode()); } /** * Combines hashCode of previous elements sequence and value's hashCode. * @param hashCode previous hashCode value * @param value new element * @return combined hashCode */ public static int combine(int hashCode, int value) { return 31 * hashCode + value; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(int value) { hashCode = combine(hashCode, value); return this; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(long value) { hashCode = combine(hashCode, value); return this; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(float value) { hashCode = combine(hashCode, value); return this; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(double value) { hashCode = combine(hashCode, value); return this; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(boolean value) { hashCode = combine(hashCode, value); return this; } /** * Appends value's hashCode to the current hashCode. * @param value new element * @return this */ public final HashCode append(Object value) { hashCode = combine(hashCode, value); return this; } }
⏎ com/itextpdf/io/util/HashCode.java
Or download all of them as a single archive file:
File name: io-7.1.4-sources.jar File size: 608762 bytes Release date: 2018-10-09 Download
⇒ iText layout.jar Source Code
⇐ iText kernel.jar Source Code
2018-04-09, 91425👍, 5💬
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