GitHubAccount.java

/*
 * Copyright 2012 GitHub Inc.
 *
 * 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.quinn.githubknife.account;

import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AccountManagerFuture;
import android.accounts.AccountsException;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;

import com.quinn.githubknife.ui.BaseActivity;
import com.quinn.githubknife.utils.PreferenceUtils;

import java.io.IOException;

/**
 * GitHub account model
 */
public class GitHubAccount {


    private static final String TAG = "GitHubAccount";

    public static final String ACCOUNT_TYPE = "com.githubknife";

    private final Account account;

    private final AccountManager manager;

    private volatile static GitHubAccount instance;

    private Context context;


    // Returns singleton class instance
    public static GitHubAccount getInstance(final Context context) {
        if (instance == null) {
            synchronized (GitHubAccount.class) {
                if (instance == null) {
                    String name = PreferenceUtils.getString(context, PreferenceUtils.Key.ACCOUNT);
                    if (name.isEmpty())
                        name = "NO_ACCOUNT";
                    Account account = new Account(name, GitHubAccount.ACCOUNT_TYPE);
                    instance = new GitHubAccount(account, context);
                }
            }
        }
        return instance;
    }



    /**
     * Create account wrapper
     *
     * @param account
     */
    public GitHubAccount(final Account account,Context context) {
        this.account = account;
        this.manager = AccountManager.get(context);
        this.context = context;
    }

    /**
     * Get username
     *
     * @return username
     */
    public String getUsername() {
        return account.name;
    }

    /**
     * Get password
     *
     * @return password
     */
    public String getPassword() {
        return manager.getPassword(account);
    }

    /**
     * Get auth token
     *
     * @return token
     */
    public String getAuthToken() {

        Log.i(TAG, "getAuthToken");

        final AccountManagerFuture<Bundle> future = manager.getAuthToken(
                account,
                ACCOUNT_TYPE,
                null,
                (BaseActivity)context,
                null,
                null);

        try {
            Bundle result = future.getResult();
            return result.getString(AccountManager.KEY_AUTHTOKEN);

        } catch (AccountsException e) {
            Log.e(TAG, "Auth token lookup failed", e);
            return null;
        } catch (IOException e) {
            Log.e(TAG, "Auth token lookup failed", e);
            return null;
        }
    }

    public void invalidateToken(String token){
        manager.invalidateAuthToken(ACCOUNT_TYPE,token);
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + '[' + account.name + ']';
    }
}