com.firegnom.valkyrie.util.PacksHelper.java Source code

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Here is the source code for com.firegnom.valkyrie.util.PacksHelper.java

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/*******************************************************************************
 * Copyright (c) 2010 Maciej Kaniewski (mk@firegnom.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, write to the Free Software Foundation,
 *    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 * 
 *    Contributors:
 *     Maciej Kaniewski (mk@firegnom.com) - initial API and implementation
 ******************************************************************************/
package com.firegnom.valkyrie.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Observer;

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

import com.firegnom.valkyrie.net.Download;

// TODO: Auto-generated Javadoc
/**
 * The Class PacksHelper.
 */
public class PacksHelper {
    // static String path = "/sdcard/com.firegnom.valkyrie/cache/";

    /**
     * Packs avilable.
     *
     * @param path the path
     * @return true, if successful
     */
    public static boolean packsAvilable(String path) {
        Download packsDownload;
        try {
            packsDownload = new Download(new URL("http://valkyrie.firegnom.com/data/packs.json"), path, true);
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
            return false;
        }
        if (!packsDownload.download()) {
            return false;
        }
        File packs = new File(path + "packs.json");
        JSONObject packsjson;

        try {
            packsjson = new JSONObject(Util.convertStreamToString(new FileInputStream(packs)));
            JSONArray packsArray = packsjson.getJSONArray("install");
            for (int i = 0; i < packsArray.length(); i++) {
                String pack = packsArray.getString(i);
                if (!new File(path + pack + ".json").exists()) {
                    return true;
                }
            }
        } catch (JSONException e) {
            e.printStackTrace();

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return false;
    }

    /**
     * Download packs.
     *
     * @param path the path
     */
    public static void downloadPacks(String path) {
        downloadPacks(path, null);
    }

    /**
     * Download packs.
     *
     * @param path the path
     * @param o the o
     */
    public static void downloadPacks(String path, Observer o) {
        Download packsDownload;
        try {
            packsDownload = new Download(new URL("http://valkyrie.firegnom.com/data/packs.json"), path, true);
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
            return;
        }
        if (!packsDownload.download()) {
            return;
        }
        File packs = new File(path + "packs.json");
        JSONObject packsjson;

        try {
            packsjson = new JSONObject(Util.convertStreamToString(new FileInputStream(packs)));
            JSONArray packsArray = packsjson.getJSONArray("install");
            for (int i = 0; i < packsArray.length(); i++) {
                String pack = packsArray.getString(i);
                if (!new File(path + pack + ".json").exists()) {
                    URL u = new URL("http://valkyrie.firegnom.com/data/" + pack + ".zip");
                    Download d;
                    if (o != null) {
                        d = new Download(u, path, true, o);
                    } else {
                        d = new Download(u, path, true);
                    }

                    System.out.println(d.download());
                    System.out.println(path + pack + ".zip");
                    NativeUnzip un = new NativeUnzip();

                    String c = new String(path + pack + ".zip");
                    String dj = new String(path);
                    long time = System.currentTimeMillis();
                    // un.dounzip(c,dj);

                    ZipUtil.unzip(new File(path + pack + ".zip"), new File(path));
                    System.out.println("time :" + ((System.currentTimeMillis() - time) / 1000));

                }

            }

        } catch (JSONException e) {
            e.printStackTrace();
            return;

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return;
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return;
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return;
        }
    }

}