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NetworkConnection.java
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NetworkConnection.java
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package javinator9889.bitcoinpools.AppUpdaterManager;
import android.os.AsyncTask;
import android.support.annotation.NonNull;
import android.util.Log;
import org.json.JSONArray;
import org.json.JSONException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.Charset;
import javinator9889.bitcoinpools.Constants;
/**
* Created by Javinator9889 on 24/01/2018.
* Get HTTPS response from GitHub releases
*/
public class NetworkConnection extends AsyncTask <String, Void, JSONArray> {
@Override
protected JSONArray doInBackground(String... url) {
try {
Log.d(Constants.LOG.NCTAG, Constants.LOG.CONNECTION);
return readJSONFromURL(url[0]);
} catch (IOException | JSONException e) {
Log.e(Constants.LOG.NCTAG, Constants.LOG.JSONERROR + e.getMessage());
}
return null;
}
@NonNull
private String readAll(Reader httpsReader) throws IOException {
StringBuilder response = new StringBuilder();
int valueRead;
while ((valueRead = httpsReader.read()) != -1) {
response.append((char) valueRead);
}
return response.toString();
}
@NonNull
private JSONArray readJSONFromURL(String url) throws IOException, JSONException {
try (InputStream JSONStream = new URL(url).openStream()) {
BufferedReader br = new BufferedReader(
new InputStreamReader(JSONStream, Charset.forName("UTF-8")));
String JSONText = readAll(br);
return new JSONArray(JSONText);
}
}
}