com.martineve.mendroid.task.MendeleyAPITask.java Source code

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Here is the source code for com.martineve.mendroid.task.MendeleyAPITask.java

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/*
 *  Mendroid: a Mendeley Android client
 *  Copyright 2011 Martin Paul Eve <martin@martineve.com>
 *
 *  This file is part of Mendroid.
 *
 *  Mendroid 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.
 *   
 *  Mendroid 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 Mendroid.  If not, see <http://www.gnu.org/licenses/>.
 *  
 */

package com.martineve.mendroid.task;

import org.json.JSONArray;

import android.app.Dialog;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Debug;
import android.util.Log;
import android.widget.Toast;

import com.martineve.mendroid.util.MendeleyConnector;

public class MendeleyAPITask extends AsyncTask<Object, Integer, JSONArray[]> {

    private MendeleyConnector m_connect;
    private Dialog d_progress;
    private Context c_context;
    private Exception e_exception;

    public MendeleyAPITask(MendeleyConnector connector) {
        m_connect = connector;
    }

    @Override
    protected JSONArray[] doInBackground(Object... params) {

        return doFetch(params);
    }

    public JSONArray[] doFetch(Object... params) {
        // TODO: remove this line when ready
        Debug.waitForDebugger();

        // first param is a string[]
        String[] urls = (String[]) params[0];

        // second param is a Context object
        c_context = (Context) params[1];

        int count = urls.length;
        JSONArray[] ret = new JSONArray[count];

        for (int i = 0; i < count; i++) {
            try {
                Log.i("com.martineve.mendroid.task.MendeleyAPITask", "Executing API call: " + urls[i]);

                String strResponse = m_connect.getMendeleyResponse(urls[i]);

                if (!strResponse.replace("\n", "").startsWith("[")) {
                    // wrap in JSONArray delimiters
                    strResponse = "[" + strResponse + "]";
                }

                ret[i] = new JSONArray(strResponse);

                Log.i("com.martineve.mendroid.task.MendeleyAPITask", "Succesfully retrieved API call: " + urls[i]);

            } catch (Exception e) {
                // TODO: determine if this is due to needing re-auth
                Log.e("com.martineve.mendroid.task.MendeleyAPITask", "Failed to execute API call: " + urls[i], e);
                return null;
            }
            publishProgress((int) ((i / (float) count) * 100));
        }

        return ret;
    }

    @Override
    protected void onPostExecute(JSONArray[] result) {
        // invoked on the UI thread

        if (result == null) {
            Log.e("com.martineve.mendroid.task.MendeleyAPITask",
                    "Returned NULL; looks like a problem communicating with Mendeley; review stack trace.");

            // there was an error
            CharSequence text = "Error communicating with Mendeley.";
            int duration = Toast.LENGTH_LONG;

            Toast toast = Toast.makeText(c_context, text, duration);
            toast.show();
        }
    }

}