Return-Path: Delivered-To: apmail-jakarta-commons-dev-archive@apache.org Received: (qmail 63957 invoked from network); 22 Feb 2002 06:12:58 -0000 Received: from unknown (HELO nagoya.betaversion.org) (192.18.49.131) by daedalus.apache.org with SMTP; 22 Feb 2002 06:12:58 -0000 Received: (qmail 17230 invoked by uid 97); 22 Feb 2002 06:13:06 -0000 Delivered-To: qmlist-jakarta-archive-commons-dev@jakarta.apache.org Received: (qmail 17184 invoked by uid 97); 22 Feb 2002 06:13:05 -0000 Mailing-List: contact commons-dev-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Help: List-Post: List-Id: "Jakarta Commons Developers List" Reply-To: "Jakarta Commons Developers List" Delivered-To: mailing list commons-dev@jakarta.apache.org Received: (qmail 17173 invoked by uid 97); 22 Feb 2002 06:13:05 -0000 Date: 22 Feb 2002 06:12:38 -0000 Message-ID: <20020222061238.49162.qmail@icarus.apache.org> From: bayard@apache.org To: jakarta-commons-sandbox-cvs@apache.org Subject: cvs commit: jakarta-commons-sandbox/io/src/java/org/apache/commons/io HexDump.java X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N bayard 02/02/21 22:12:38 Added: io/src/java/org/apache/commons/io HexDump.java Log: Moved over from the Commons.Utils project.. Revision Changes Path 1.1 jakarta-commons-sandbox/io/src/java/org/apache/commons/io/HexDump.java Index: HexDump.java =================================================================== /* * $Header: /home/cvs/jakarta-commons-sandbox/io/src/java/org/apache/commons/io/HexDump.java,v 1.1 2002/02/22 06:12:38 bayard Exp $ * $Revision: 1.1 $ * $Date: 2002/02/22 06:12:38 $ * * ==================================================================== * * The Apache Software License, Version 1.1 * * Copyright (c) 2002 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Commons", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * . * */ package org.apache.commons.io; import java.io.IOException; import java.io.OutputStream; /** * dump data in hexadecimal format; derived from a HexDump utility I * wrote in June 2001 * * Taken from the POI project * * @author Scott Sanders (sanders at apache dot org) * @author Marc Johnson * @version $Revision: 1.1 $ $Date: 2002/02/22 06:12:38 $ */ public class HexDump { // all static methods, so no need for a public constructor private HexDump() { } /** * dump an array of bytes to an OutputStream * * @param data the byte array to be dumped * @param offset its offset, whatever that might mean * @param stream the OutputStream to which the data is to be * written * @param index initial index into the byte array * * @exception IOException is thrown if anything goes wrong writing * the data to stream * @exception ArrayIndexOutOfBoundsException if the index is * outside the data array's bounds * @exception IllegalArgumentException if the output stream is * null */ public static void dump(final byte[] data, final long offset, final OutputStream stream, final int index) throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException { if ((index < 0) || (index >= data.length)) { throw new ArrayIndexOutOfBoundsException( "illegal index: " + index + " into array of length " + data.length); } if (stream == null) { throw new IllegalArgumentException("cannot write to nullstream"); } long display_offset = offset + index; StringBuffer buffer = new StringBuffer(74); for (int j = index; j < data.length; j += 16) { int chars_read = data.length - j; if (chars_read > 16) { chars_read = 16; } buffer.append(dump(display_offset)).append(' '); for (int k = 0; k < 16; k++) { if (k < chars_read) { buffer.append(dump(data[k + j])); } else { buffer.append(" "); } buffer.append(' '); } for (int k = 0; k < chars_read; k++) { if ((data[k + j] >= ' ') && (data[k + j] < 127)) { buffer.append((char) data[k + j]); } else { buffer.append('.'); } } buffer.append(EOL); stream.write(buffer.toString().getBytes()); stream.flush(); buffer.setLength(0); display_offset += chars_read; } } public static final String EOL = System.getProperty("line.separator"); private static final StringBuffer _lbuffer = new StringBuffer(8); private static final StringBuffer _cbuffer = new StringBuffer(2); private static final char _hexcodes[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; private static final int _shifts[] = { 28, 24, 20, 16, 12, 8, 4, 0 }; private static StringBuffer dump(final long value) { _lbuffer.setLength(0); for (int j = 0; j < 8; j++) { _lbuffer .append(_hexcodes[((int) (value >> _shifts[j])) & 15]); } return _lbuffer; } private static StringBuffer dump(final byte value) { _cbuffer.setLength(0); for (int j = 0; j < 2; j++) { _cbuffer.append(_hexcodes[(value >> _shifts[j + 6]) & 15]); } return _cbuffer; } } -- To unsubscribe, e-mail: For additional commands, e-mail: