java

HttpGet get = new HttpGet(path);

String date = DateUtils.formatDate(new Date());
    
// create signature: method + content md5 + content-type + date + uri
StringBuilder signature = new StringBuilder();
signature.append(get.getMethod()).append("\n")
    .append("\n")
    .append("\n")
    .append(date).append("\n")
    .append(get.getURI().getPath());
    
get.addHeader("Date", date);
get.addHeader("Authorization", username + ":" + calculateHMAC(password, signature.toString()));
  
// send request
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(get);
    
System.out.println(response.getStatusLine().getStatusCode());