Passing data using HTTP GET/OAuth

PPB.java

import com.google.gdata.client.GoogleService;
import com.google.gdata.client.authn.oauth.*;
import com.google.gdata.data.BaseEntry;
import com.google.gdata.data.BaseFeed;
import com.google.gdata.data.Feed;
import java.io.*;
import java.net.*;
import javax.net.ssl.*;

public class PPB {
  public static void main(String argv[]) throws Exception {
    HttpURLConnection con = null;
    OAuthHmacSha1Signer hmacSigner = new OAuthHmacSha1Signer();
	OAuthParameters params = new OAuthParameters();
	params.setOAuthConsumerKey("");
	params.setOAuthConsumerSecret("");
	params.setOAuthNonce(OAuthUtil.getNonce());
	params.setOAuthTimestamp(OAuthUtil.getTimestamp());
	params.setOAuthSignatureMethod("HMAC-SHA1");
	params.addCustomBaseParameter("oauth_version", "1.0");
	
    String payload = "</payloadData>";
	params.addCustomBaseParameter("payload", payload);
	
					
	String method = "GET";
	String ppURL = "http://reqURL";
	String baseString = OAuthUtil.getSignatureBaseString(ppURL, method, params.getBaseParameters());
					
	String signature = hmacSigner.getSignature(baseString, params);
	params.addCustomBaseParameter("oauth_signature", signature);
	
	//TODO: Use StringBuilder
	ppURL += "?";
	ppURL += "oauth_consumer_key=";
	String cb = URLEncoder.encode(params.getBaseParameters().get("oauth_consumer_key"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "oauth_nonce=";
	cb = URLEncoder.encode(params.getBaseParameters().get("oauth_nonce"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "oauth_signature=";
	cb = URLEncoder.encode(params.getBaseParameters().get("oauth_signature"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "oauth_signature_method=";
	cb = URLEncoder.encode(params.getBaseParameters().get("oauth_signature_method"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "oauth_timestamp=";
	cb = URLEncoder.encode(params.getBaseParameters().get("oauth_timestamp"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "oauth_version=";
	cb = URLEncoder.encode(params.getBaseParameters().get("oauth_version"));
	ppURL += cb;
	ppURL += "&";
	ppURL += "payload=";
	cb = URLEncoder.encode(params.getBaseParameters().get("payload"));
	ppURL += cb;
	System.out.println(ppURL);
  }
}