com.vti.managers.AccountManager.java Source code

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Here is the source code for com.vti.managers.AccountManager.java

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/**
 * Copyright 2011 Sol Ma
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and limitations under the License.
 */
package com.vti.managers;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.conf.ConfigurationBuilder;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import com.vti.utils.Log;
import com.vti.Constants;

public class AccountManager {
    private static final String TAG = AccountManager.class.getSimpleName();
    private TwitterFactory tf;

    private Context context;

    public AccountManager(Context ctxt) {
        this.context = ctxt;
        final SharedPreferences settings = context.getSharedPreferences(Constants.AUTHORIZATION_PREFERENCE_FILE, 0);
        String accessToken = settings.getString(Constants.ACCESS_TOKEN, null);
        String tokenSecret = settings.getString(Constants.TOKEN_SECRET, null);

        if (null != accessToken && null != tokenSecret) {
            tf = new TwitterFactory(new ConfigurationBuilder().setDebugEnabled(true)
                    .setOAuthConsumerKey(Constants.CONSUMER_KEY).setOAuthConsumerSecret(Constants.CONSUMER_SECRET)
                    .setOAuthAccessToken(accessToken).setOAuthAccessTokenSecret(tokenSecret).build());
        }
    }

    public TwitterFactory getTwitterFactory() {
        return tf;
    }

    /**
     * 
     * @return true if OAuth token is empty, i.e. not required yet, false if
     *         application already has required tokens
     */
    public boolean isAccountEmpty() {
        return tf == null ? true : false;
    }

    /**
     * 
     * @return OAuth OAuthTokens from save Accounts
     */
    public AccessToken getAuthTokens() {
        if (tf != null) {
            Twitter twitter = tf.getInstance();
            try {
                return twitter.getOAuthAccessToken();
            } catch (TwitterException e) {
                Log.d(TAG, Log.stack2string(e));
                return null;
            }
        } else
            return null;
    }

    /**
     * Save the oAuth Token for future use
     * 
     * @param accessToken
     * @param tokenSecret
     */
    public void saveAccount(String accessToken, String tokenSecret) {
        final SharedPreferences settings = context.getSharedPreferences(Constants.AUTHORIZATION_PREFERENCE_FILE, 0);
        Editor editor = settings.edit();
        editor.putString(Constants.ACCESS_TOKEN, accessToken);
        editor.putString(Constants.TOKEN_SECRET, tokenSecret);
        editor.commit();
    }

    /**
     * Save the setting for future use
     */
    public void saveSettings(int interval, boolean voiceNotify) {
        final SharedPreferences settings = context.getSharedPreferences(Constants.SETTING_PREFERENCE_FILE, 0);
        Editor editor = settings.edit();
        editor.putInt(Constants.UPDATE_FREQUENCY, interval);
        editor.putBoolean(Constants.VOICE_NOTIFY, voiceNotify);
        editor.commit();
    }

}