public static String postEvent(String path, String agentName, String key, String secret, String postData) {
        //String data = nonce() + postData;
        String nonce = String.valueOf(System.currentTimeMillis()) + "000";
        HashMap<String, String> args = new HashMap<String, String>();
        args.put("nonce", nonce);
        String post_data = buildQueryString(args);
        System.out.println(post_data);

        String mtGoxStandartPath = "data.mtgox.com/api/";
        String hash_data = path.substring(path.indexOf(mtGoxStandartPath) + mtGoxStandartPath.length() + 2) + "\0" + post_data;

        String signature = signRequest(secret, hash_data);


        HttpClient client = getNewHttpClient();
        String result = "";
        HttpPost post = new HttpPost(path);
        try {
            //secret = new String(util.Base64.decodeFast(secret), "utf-8");

            post.addHeader("User-Agent", agentName);
            post.addHeader("Rest-Key", key);
            post.addHeader("Rest-Sign",  signature); //signature.replaceAll("\n", "")); //
            //post.addHeader("nonce", nonce);
            //post.addHeader("Accept-encoding", "UTF-8");

            System.out.println(post.toString());
            HttpResponse response = client.execute(post);

            BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            String line = "";
            while ((line = rd.readLine()) != null) {
                result += line;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }






//Build the query string given a set of query parameters
    private static String buildQueryString(HashMap<String, String> args) {
        String result = new String();
        for (String hashkey : args.keySet()) {
            if (result.length() > 0) {
                result += '&';
            }
            try {
                result += URLEncoder.encode(hashkey, ENCODING) + "="
                        + URLEncoder.encode(args.get(hashkey), ENCODING);
            } catch (Exception ex) {
                //Logger.getLogger(MtGox.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return result;
    }

    private static String signRequest(String secret, String hash_data) {
        String signature = "";
        try {
            Mac mac = Mac.getInstance(SIGN_HASH_FUNCTION);
            SecretKeySpec secret_spec = new SecretKeySpec(org.apache.commons.codec.binary.Base64.decodeBase64(secret), SIGN_HASH_FUNCTION);
            mac.init(secret_spec);
            signature = org.apache.commons.codec.binary.Base64.encodeBase64String(mac.doFinal(hash_data.getBytes()));
        } catch (NoSuchAlgorithmException | InvalidKeyException e) {
            //Logger.getLogger(MtGox.class.getName()).log(Level.SEVERE, null, e);
            e.printStackTrace();
        }
        return signature;
    }