app/src/main/java/ai/suanzi/rtmpclient/CheckVersionInfoTask.java

   1 package ai.suanzi.rtmpclient;
   2
   3 import android.content.Context;
   4 import android.os.AsyncTask;
   5 import org.apache.log4j.Logger;
   6 import org.json.JSONException;
   7 import org.json.JSONObject;
   8
   9 import java.io.BufferedReader;
  10 import java.io.IOException;
  11 import java.io.InputStream;
  12 import java.io.InputStreamReader;
  13 import java.net.HttpURLConnection;
  14 import java.net.URL;
  15 import android.content.Intent;
  16
  17
  18 public class CheckVersionInfoTask extends AsyncTask<Void, Void, String> {
  19
  20     private static Logger gLogger = Logger.getLogger("CheckVersionInfoTask");
  21     private Context mContext;
  22
  23     private static final String VERSION_INFO_URL = "http://downloads.suanzi.ai/RtmpClient/update.json";
  24
  25     public CheckVersionInfoTask(Context context){
  26         this.mContext = context;
  27     }
  28
  29     @Override
  30     protected String doInBackground(Void... params){
  31         gLogger.debug("doInBackground");
  32         return getVersionInfo(VERSION_INFO_URL);
  33     }
  34
  35     @Override
  36     protected void onPreExecute(){
  37         gLogger.debug("onPreExecute");
  38     }
  39
  40     @Override
  41     protected void onPostExecute(String result) {
  42         gLogger.debug("onPostExecute, update.json " + result);
  43         parseJson(result);
  44
  45     }
  46
  47     private String getVersionInfo(String urlStr) {
  48         HttpURLConnection urlConnection = null;
  49         InputStream is = null;
  50         BufferedReader buffer = null;
  51         String result = null;
  52         try {
  53             URL url = new URL(urlStr);
  54             urlConnection = (HttpURLConnection) url.openConnection();
  55             is = urlConnection.getInputStream();
  56             buffer = new BufferedReader(new InputStreamReader(is));
  57             StringBuilder strBuilder = new StringBuilder();
  58             String line;
  59             while ((line = buffer.readLine()) != null) {
  60                 strBuilder.append(line);
  61             }
  62             result = strBuilder.toString();
  63         } catch (Exception e){
  64             gLogger.error("getVersionInfo - error: " + e.getMessage());
  65             e.printStackTrace();
  66         } finally {
  67             if (buffer != null) {
  68                 try {
  69                     buffer.close();
  70                 } catch (IOException e){
  71                     e.printStackTrace();
  72                 }
  73             }
  74             if (urlConnection != null){
  75                 urlConnection.disconnect();
  76             }
  77         }
  78         return result;
  79     }
  80
  81     private void parseJson(String result) {
  82         try {
  83             JSONObject obj = new JSONObject(result);
  84             String apkUrl = obj.getString("url");
  85             String updateMessage = obj.getString("updateMessage");
  86             int apkCode = obj.getInt("versionCode");
  87             int versionCode = getCurrentVersionCode();
  88             gLogger.error("apkUrl: " + apkUrl);
  89             gLogger.error("UpdateMessage: " + updateMessage);
  90             gLogger.error("apkCode: " + apkCode);
  91             gLogger.error("versionCode: " + versionCode);
  92             if(apkCode > versionCode){
  93                 gLogger.debug("Found new version, current is " + versionCode + ", will update to " + apkCode);
  94                 goToDownloadApk(apkUrl);
  95             }
  96         } catch (JSONException e){
  97             gLogger.error("parseJson - error " + e.getMessage());
  98             e.printStackTrace();
  99         }
 100     }
 101
 102     private int getCurrentVersionCode(){
 103         return BuildConfig.VERSION_CODE;
 104     }
 105
 106     private void goToDownloadApk(String downloadUrl){
 107         Intent intent = new Intent(mContext, DownloadApkService.class);
 108         intent.putExtra("apkUrl", downloadUrl);
 109         mContext.startService(intent);
 110     }
 111 }