edu.cwru.apo.APO.java Source code

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Here is the source code for edu.cwru.apo.APO.java

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/*
 * Copyright 2011 Devin Schwab, Umang Banugaria
 *
 * This file is part of the APO Theta Upsilon App for Case Western Reserve University's Alpha Phi Omega Theta Upsilon Chapter.
 *
 * The APO Theta Upsilon program is free software: you can redistribute it and/or modify
 * it under the terms of the Lesser GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Lesser GNU General Public License for more details.
 *
 * You should have received a copy of the Lesser GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package edu.cwru.apo;

import org.json.JSONException;
import org.json.JSONObject;

import edu.cwru.apo.API.Methods;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

public class APO extends Activity implements AsyncRestRequestListener<API.Methods, JSONObject> {

    private static final long SPLASHTIME = 3000;
    private static long STARTTIME = 0;

    public static final String PREF_FILE_NAME = "PrefFile";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // removes title bar on app, making image full screen
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        setContentView(R.layout.splash_screen);

        // load keys if they exist
        Auth.loadKeys(getSharedPreferences(APO.PREF_FILE_NAME, MODE_PRIVATE));

        API api = new API(this);
        if (!api.callMethod(Methods.checkCredentials, this, (String[]) null)) {
            Intent loginIntent = new Intent(APO.this, Login.class);
            Bundle extras = new Bundle();
            extras.putString("msg", "No saved credentials");
            loginIntent.putExtras(extras);
            APO.this.startActivity(loginIntent);
            finish();
        }

    }

    public void onRestRequestComplete(API.Methods method, JSONObject result) {
        // check and see if the splash screen has been shown for the minimum amount of time
        // NOTE: This would probably be better done with a timer.  Need to change this
        while (Auth.getTimestamp() - STARTTIME < SPLASHTIME) {
            // do nothing.  This is probably not the right way to do this
        }

        // set the next activity to default Login
        Intent nextActivity = new Intent(APO.this, Login.class);
        Bundle extras = new Bundle();

        if (method == Methods.checkCredentials) {
            if (result != null) {
                try {
                    if (result.getString("requestStatus").compareTo("valid") == 0) {
                        //change the nextActivity to Home
                        Auth.loggedIn = true;
                        nextActivity = new Intent(APO.this, Home.class);
                    } else if (result.getString("requestStatus").compareTo("No response") == 0) {
                        extras.putString("msg", "Could not contact web server. Please check your connection");
                    } else {
                        extras.putString("msg", "Invalid credentials");
                    }

                } catch (JSONException e) {
                    extras.putString("msg", "JSON error: Invalid JSON response");
                    e.printStackTrace();
                }
            } else {
                extras.putString("msg", "JSON error: No JSON Object to read");
            }
        } else {
            extras.putString("msg", "Invalid method called");
        }

        nextActivity.putExtras(extras);

        // start the next activity
        APO.this.startActivity(nextActivity);
        finish();
    }

}