org.androidappdev.codebits.CodebitsApi.java Source code

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Here is the source code for org.androidappdev.codebits.CodebitsApi.java

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/*  
 *  Codebits - Comment the talk proposals.
 *  Copyright (C) 2011 Henrique Rocha <hmrocha@gmail.com>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the 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
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.androidappdev.codebits;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

/**
 * Methods of the Codebits API https://services.sapo.pt/Codebits
 * 
 * @author Henrique Rocha
 */
public class CodebitsApi {
    public static final String TAG = "CodebitsApi";

    /**
     * Perform an HTTP request
     * 
     * @param url
     *            the URL for the request
     * @return a String with the result of the request
     */
    private static String performHttpRequest(String url) {
        StringBuilder builder = new StringBuilder();
        HttpClient client = new DefaultHttpClient();
        HttpGet request = new HttpGet(url);
        try {
            HttpResponse response = client.execute(request);
            HttpEntity entity = response.getEntity();
            InputStream content = entity.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(content));
            String line = null;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
        } catch (Exception e) {
            Log.d(TAG, "Exception", e);
        }
        return builder.toString();
    }

    /**
     * Get the auth token. Will be used as a &token= argument with all the
     * authenticated methods.
     * 
     * @param user
     *            e-mail of the user
     * @param password
     *            the user's password
     * @return the auth token
     */
    public static String getToken(String user, String password) {
        try {
            String url = "https://services.sapo.pt/Codebits/gettoken?" + "user=" + user + "&" + "password="
                    + password;
            JSONObject jsonObject;
            jsonObject = new JSONObject(performHttpRequest(url));
            return jsonObject.getString("token");
        } catch (JSONException e) {
            Log.d(TAG, "JSONException", e);
        }
        return null;
    }

    /**
     * List submissions
     * 
     * @param token
     *            authentication token
     * @return Returns the list of the call for talks submissions for this year.
     * @throws JSONException
     */
    public static List<Talk> listSubmissions(String token) {
        LinkedList<Talk> result = new LinkedList<Talk>();
        try {
            String url = "https://services.sapo.pt/Codebits/calltalks";
            if (token != null) {
                url += "?token=" + token;
            }
            JSONArray jsonArray = new JSONArray(performHttpRequest(url));
            for (int i = 0; i < jsonArray.length(); i++) {
                result.add(new Talk(jsonArray.getJSONObject(i)));
            }
        } catch (JSONException e) {
            Log.d(TAG, "JSONException", e);
        }
        return result;
    }
}