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How to Open HTTP page with digest Authentication using HttpClient and create BufferedReader

I have some generic code for reading file or http page which returns a BufferedReader type to calling function.
For HTTP, I have the following which works for basic authentication.

URL url = new URL(inFilePath);

				if (taskdataHandler.SiteCredentialsUserName != null && !taskdataHandler.SiteCredentialsUserName.isEmpty()
						&& taskdataHandler.SiteCredentialsPassword != null && !taskdataHandler.SiteCredentialsPassword.isEmpty())
				{
					HttpURLConnection uc = (HttpURLConnection) url.openConnection();
					String userpassword = taskdataHandler.SiteCredentialsUserName + ":" + taskdataHandler.SiteCredentialsPassword;
					String encodedAuthorization = taskManager.Base64Encode(userpassword);
					uc.setRequestProperty("Authorization", "Basic " + encodedAuthorization);
					in = new BufferedReader(new InputStreamReader(uc.getInputStream()));
				} else
					in = new BufferedReader(new InputStreamReader(url.openStream()));

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I'm trying to add logic for digest authentication using HttpClient, and with input parameter of url path, and output type of BufferedReader for the path.

I tried using the following code which is a modified version of code I found on the web, but this gives me an error saying too many redirects.
How can I fix redirect error, and how can I get HttpClient to work with url path as input parameter and BufferedReader as out put parameter?

static public BufferedReader OpenFileForRead_digest(String inFilePath, taskDataHandler taskdataHandler) throws Exception
	{
		BufferedReader in = null;
		String strURL = inFilePath;
		final String username = taskdataHandler.SiteCredentialsUserName;
		final String password = taskdataHandler.SiteCredentialsPassword;

		Authenticator.setDefault(new Authenticator()
		{
			protected PasswordAuthentication getPasswordAuthentication()
			{
				PasswordAuthentication pa = new PasswordAuthentication(username, password.toCharArray());
				return pa;
			}
		});

		try
		{
			URL url = new URL(strURL);
			URLConnection connection = url.openConnection();
			in = new BufferedReader(new InputStreamReader(connection.getInputStream()));

		} catch (java.net.ProtocolException e)
		{
			StringWriter stringWriter = new StringWriter();
			e.printStackTrace(new PrintWriter(stringWriter));
			// get the stackTrace as String...
			String stackTrace = stringWriter.toString();
			String ExceptionError = new String("OpenFileForRead_digest " + " <b>Error</b>ProtocolException: " + e.toString() + "<p>..</p>\n<pre>" + stackTrace
					+ "</pre>");
			cvlog.error(ExceptionError);
		} catch (Exception e)
		{
			StringWriter stringWriter = new StringWriter();
			e.printStackTrace(new PrintWriter(stringWriter));
			// get the stackTrace as String...
			String stackTrace = stringWriter.toString();
			String ExceptionError = new String("OpenFileForRead_digest " + " <b>Error</b>Exception: " + e.toString() + "<p>..</p>\n<pre>" + stackTrace
					+ "</pre>");
			cvlog.error(ExceptionError);
		}

		return in;
	}

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for_yan

maybe I'm missing something, but I don't see if you are
using HttpClient from apache:
http://hc.apache.org/downloads.cgi

Usisng HttpClient I don't think you need to use UrlConnection class directly.

With HttpClient perhpas you can try this code for digest authentication taken from
http://datum-bits.blogspot.com/2011/07/using-apache-commons-httpclient-for.html
which looks pretty simple:

  public static String sendDigestAuthentication(
      String username, Sting password,
      String url, String host,
      int portNumber, String protocol) {

    HttpResponse response = null;
    HttpHost targetHost = new HttpHost(
          host, portNumber, protocol);

    DefaultHttpClient httpclient =
      new DefaultHttpClient();
    try {
      httpclient.getCredentialsProvider().
        setCredentials(
          new AuthScope(targetHost.getHostName(),
                targetHost.getPort()),
          new UsernamePasswordCredentials(username,
                        password));
    
      HttpGet httpget = new HttpGet(url);
      response = httpclient.execute(targetHost,
                    httpget);
    } catch (Exception exc) {
       logger.debug("Exception digesting Authentication");
    } finally {
      // When HttpClient instance is no longer needed,
      // shut down the connection manager to ensure
      // immediate deallocation of all system resources
      httpclient.getConnectionManager().shutdown();
    }
    return response.toString();
  }