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Open source implementation of the AS2 standard for signed encrypted and compressed document transfer

There is a newer version: 2.10.1

/**
 * 
 */
package org.openas2.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author joseph mcverry
 *
 */
public class ByteCoder {
	
	public static String encode(String inStr) {
		StringBuffer sb = new StringBuffer();
		byte me[] = inStr.getBytes();
		int i;
		for (i=0; i < me.length; i++) {
			sb.append(".");
			sb.append(me[i]);
			sb.append(".");
		}
		return sb.toString();
	}
	public static String decode(String inStr) {
		StringBuffer sb = new StringBuffer();
		Pattern pttrn = Pattern.compile(".[0-9]+.");
		Matcher match = pttrn.matcher(inStr);
		byte me;
		while (match.find()) {
			String mtch = match.group();
			me = (byte)Integer.parseInt(mtch.substring(1, mtch.length()-1));
			sb.append((char)me);
		}
		return sb.toString();
	}
   public static void main(String args[]) {
	   StringBuffer sb = new StringBuffer();
	   for (int i = 0; i < args.length; i++) {
		   if (i > 0)
			   sb.append('\n');
		   sb.append(args[i]);
	   }
	   String in = encode(sb.toString());
	   String out = decode(in);
	   if (sb.toString().equals(out))
		   System.out.println("success");
	   else  
		   System.out.println("failed expected:"+in+"\ngot:"+out);
   }
}