/*
* Copyright 2007 Sun Microsystems, Inc.
*
* This file is part of jVoiceBridge.
*
* jVoiceBridge is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation and distributed hereunder
* to you.
*
* jVoiceBridge 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Sun designates this particular file as subject to the "Classpath"
* exception as provided by Sun in the License file that accompanied this
* code.
*/
package com.sun.voip;
/**
* This class is used for debugging to dump arrays of bytes.
*/
public class Util {
private Util() {
}
/**
* Print a byte array in hex.
*
* @param data byte array of data to dump
* @param length integer number of bytes to dump
* XXX length needs to be a multiple of 16.
*/
public static synchronized void dump(String msg, byte[] data, int offset,
int length) {
Logger.println(msg);
String s = "";
String t = "";
char[] v = new char[1];
for (int i = 0; i < length; i++) {
if ((i % 16) == 0) {
if (i > 0) {
Logger.println(s + "\t" + t);
}
s = Integer.toHexString(i + offset) + ": ";
t = "";
}
s += Integer.toHexString(data[i] & 0xff) + " ";
v[0] = (char)(data[i + offset] & 0xff);
if (v[0] < 0x20 || v[0] > 0x7e) {
t += ".";
} else {
t += String.copyValueOf(v);
}
}
Logger.println(s + "\t" + t);
}
public static synchronized void dump(String msg, int[] data, int offset,
int length) {
Logger.println(msg);
String s = "";
String t = "";
char[] v = new char[1];
for (int i = 0; i < length; i++) {
if ((i % 8) == 0) {
if (i > 0) {
Logger.println(s + "\t" + t);
}
s = Integer.toHexString(i + offset) + ": ";
t = "";
}
s += Integer.toHexString(data[i + offset] & 0xffff) + " ";
v[0] = (char)((data[i + offset] >> 8) & 0xff);
if (v[0] < 0x20 || v[0] > 0x7e) {
t += ".";
} else {
t += String.copyValueOf(v);
}
v[0] = (char) (data[i + offset] & 0xff);
if (v[0] < 0x20 || v[0] > 0x7e) {
t += ".";
} else {
t += String.copyValueOf(v);
}
}
Logger.println(s + "\t" + t);
}
}