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// --- BEGIN COPYRIGHT BLOCK ---
// This program 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; version 2 of the License.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmscore.cert;
import com.netscape.certsrv.base.IPrettyPrintFormat;
/**
* This class will display the certificate content in predefined
* format.
*
* @author Andrew Wnuk
* @version $Revision$, $Date$
*/
public class PrettyPrintFormat implements IPrettyPrintFormat {
/*==========================================================
* variables
*==========================================================*/
private String mSeparator = "";
private int mIndentSize = 0;
private int mLineLen = 0;
/*==========================================================
* constants
*
*==========================================================*/
private final static String spaces =
" " +
" " +
" " +
" " +
" ";
/*==========================================================
* constructors
*==========================================================*/
public PrettyPrintFormat(String separator) {
mSeparator = separator;
}
public PrettyPrintFormat(String separator, int lineLen) {
mSeparator = separator;
mLineLen = lineLen;
}
public PrettyPrintFormat(String separator, int lineLen, int indentSize) {
mSeparator = separator;
mLineLen = lineLen;
mIndentSize = indentSize;
}
/*==========================================================
* Private methods
*==========================================================*/
/*==========================================================
* public methods
*==========================================================*/
/**
* Provide white space indention
* stevep - speed improvements. Factor of 10 improvement
*
* @param numSpace number of white space to be returned
* @return white spaces
*/
public String indent(int size) {
return spaces.substring(0, size);
}
private static final char[] hexdigits = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'
};
/**
* Convert Byte Array to Hex String Format
* stevep - speedup by factor of 8
*
* @param byte array of data to hexify
* @param indentSize number of spaces to prepend before each line
* @param lineLen number of bytes to output on each line (0
* means: put everything on one line
* @param separator the first character of this string will be used as
* the separator between bytes.
* @return string representation
*/
public String toHexString(byte[] in, int indentSize,
int lineLen, String separator) {
if (in == null) return "";
StringBuffer sb = new StringBuffer();
int hexCount = 0;
char c[];
int j = 0;
if (lineLen == 0) {
c = new char[in.length * 3 + 1];
} else {
c = new char[lineLen * 3 + 1];
}
char sep = separator.charAt(0);
sb.append(indent(indentSize));
for (int i = 0; i < in.length; i++) {
if (lineLen > 0 && hexCount == lineLen) {
c[j++] = '\n';
sb.append(c, 0, j);
sb.append(indent(indentSize));
hexCount = 0;
j = 0;
}
byte x = in[i];
// output hex digits to buffer
c[j++] = hexdigits[(char) ((x >> 4) & 0xf)];
c[j++] = hexdigits[(char) (x & 0xf)];
// if not last char, output separator
if (i != in.length - 1) {
c[j++] = sep;
}
hexCount++;
}
if (j > 0) {
c[j++] = '\n';
sb.append(c, 0, j);
}
// sb.append("\n");
return sb.toString();
}
public String toHexString(byte[] in, int indentSize, int lineLen) {
return toHexString(in, indentSize, lineLen, mSeparator);
}
public String toHexString(byte[] in, int indentSize) {
return toHexString(in, indentSize, mLineLen);
}
public String toHexString(byte[] in) {
return toHexString(in, mIndentSize);
}
}
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