RetrieveAccessTokenTask.java

package sg.vinova.vss.group5.non.activity;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.os.AsyncTask;
import android.util.Log;

import com.google.api.client.auth.oauth.OAuthCredentialsResponse;
import com.google.api.client.auth.oauth.OAuthHmacSigner;
import com.google.api.client.googleapis.auth.oauth.GoogleOAuthGetAccessToken;

public class RetrieveAccessTokenTask extends AsyncTask<Uri, Void, Void> {

	final String TAG = getClass().getName();

	//private Context context;
	private OAuthHmacSigner signer;
	private SharedPreferences prefs;
	private OAuthCredentialsResponse credentials;

	public RetrieveAccessTokenTask(Context context, OAuthHmacSigner signer,SharedPreferences prefs) {
		//this.context = context;
		this.signer = signer;
		this.prefs = prefs;		
	}

	/**
	 * Retrieve the oauth_verifier, and store the oauth and oauth_token_secret
	 * for future API calls.
	 */
	@Override
	protected Void doInBackground(Uri... params) {

		try {
			final Uri uri = params[0];

			Log.d(C.TAG, "piuk 1");
			String requestToken = uri.getQueryParameter("oauth_token");
			String verifier = uri.getQueryParameter("oauth_verifier");
			Log.d(C.TAG, "piuk 2 : " + requestToken + " " + verifier);
			signer.clientSharedSecret = C.CONSUMER_SECRET;
			Log.d(C.TAG, "piuk 3");
			GoogleOAuthGetAccessToken accessToken = new GoogleOAuthGetAccessToken();
			accessToken.transport = Util.AUTH_TRANSPORT;
			accessToken.temporaryToken = requestToken;
			accessToken.signer = signer;
			accessToken.consumerKey = C.CONSUMER_KEY;
			accessToken.verifier = verifier;
			Log.d(C.TAG, "piuk 4");
			credentials = accessToken.execute();
			signer.tokenSharedSecret = credentials.tokenSecret;
			Log.d(C.TAG, "piuk 5");
			final Editor edit = prefs.edit();
			Log.d(C.TAG, "piuk 6");
			Log.d(C.TAG, "pik 9 " + credentials.token + " " + credentials.tokenSecret);
			edit.putString("oauth_token", credentials.token);
			edit.putString("oauth_token_secret", credentials.tokenSecret);
			//Log.d(C.TAG, "ppe (3) " + C.PREF_KEY_OAUTH_TOKEN + " " + C.PREF_KEY_OAUTH_TOKEN);
			edit.commit();

			//context.startActivity(new Intent(context,LoginActivity.class));
			Log.i(TAG, "OAuth - Access Token Retrieved");

		} catch (Exception e) {
			Log.e(TAG, "OAuth - Access Token Retrieval Error", e);
		}
		return null;
	}

}