| /* ByteArray.java -- wrapper around a byte array, with nice toString output. |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.java.security.util; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| public final class ByteArray |
| { |
| private final byte[] value; |
| |
| public ByteArray (final byte[] value) |
| { |
| this.value = value; |
| } |
| |
| public byte[] getValue () |
| { |
| return value; |
| } |
| |
| public String toString () |
| { |
| StringWriter str = new StringWriter (); |
| PrintWriter out = new PrintWriter (str); |
| int i = 0; |
| int len = value.length; |
| while (i < len) |
| { |
| out.print (formatInt (i, 16, 8)); |
| out.print (" "); |
| int l = Math.min (16, len - i); |
| String s = toHexString (value, i, l, ' '); |
| out.print (s); |
| for (int j = 56 - (56 - s.length ()); j < 56; j++) |
| out.print (" "); |
| for (int j = 0; j < l; j++) |
| { |
| byte b = value[i+j]; |
| if ((b & 0xFF) < 0x20 || (b & 0xFF) > 0x7E) |
| out.print ("."); |
| else |
| out.print ((char) (b & 0xFF)); |
| } |
| out.println (); |
| i += 16; |
| } |
| return str.toString (); |
| } |
| |
| public static String toHexString (byte[] buf, int off, int len, char sep) |
| { |
| StringBuffer str = new StringBuffer(); |
| for (int i = 0; i < len; i++) |
| { |
| str.append (Character.forDigit (buf[i+off] >>> 4 & 0x0F, 16)); |
| str.append (Character.forDigit (buf[i+off] & 0x0F, 16)); |
| if (i < len - 1) |
| str.append(sep); |
| } |
| return str.toString(); |
| } |
| |
| public static String formatInt (int value, int radix, int len) |
| { |
| String s = Integer.toString (value, radix); |
| StringBuffer buf = new StringBuffer (); |
| for (int j = 0; j < len - s.length(); j++) |
| buf.append ("0"); |
| buf.append (s); |
| return buf.toString(); |
| } |
| } |