Android Open Source - wifi_triangulation Upload Service

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Back to project page wifi_triangulation.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.zackaryscholl.wifilocation.scanner;
//  w ww .j  ava 2s  .co m
import java.util.ArrayList;
import java.util.List;

import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.support.v4.content.LocalBroadcastManager;

import com.google.gson.Gson;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;

public class UploadService extends IntentService {

  public static final String SERVICE_NAME = UploadService.class.getSimpleName();

  private static final String ACTION_UPLOAD = "UploadService.ACTION_UPLOAD";
  private static final String EXTRA_POINTS = "points";
  public static final String ACTION_UPLOAD_COMPLETE = "UploadService.ACTION_UPLOAD_COMPLETE";
  public static final String EXTRA_NUM_POINTS = "numPoints";

  public static void startUpload(List<WifiPoint> points) {
    Context context = WifiScanApplication.getInstance();

    Intent intent = new Intent(context, UploadService.class);
    intent.setAction(ACTION_UPLOAD);

    ArrayList<WifiPoint> arrayList;
    if (points instanceof ArrayList) {
      arrayList = (ArrayList) points;
    }
    else {
      arrayList = new ArrayList<>(points);
    }
    intent.putParcelableArrayListExtra(EXTRA_POINTS, arrayList);

    context.startService(intent);
  }

  public UploadService() {
    super(SERVICE_NAME);
  }

  @Override
  protected void onHandleIntent(Intent intent) {
    switch (intent.getAction()) {
    case ACTION_UPLOAD:
      handleUpload(intent);
      break;
    default:
      break;
    }
  }

  private void handleUpload(Intent intent) {
    final String url = getString(R.string.url_upload);
    final List<WifiPoint> points = intent.getParcelableArrayListExtra(EXTRA_POINTS);
    final String json = new Gson().toJson(points);

    RequestBody body = RequestBody.create(MediaType.parse("application/json"), json);

    Request.Builder builder = new Request.Builder();
    builder.url(url).post(body);
    Request request = builder.build();

    OkHttpClient client = new OkHttpClient();
    try {
      Response response = client.newCall(request).execute();
      final int code = response.code();
      if (code == 200) {
        final String responseBody = response.body().string();
        int count = Integer.parseInt(responseBody);
        broadcastCompletion(count);
        return;
      }
    }
    catch (Exception e) {
      e.printStackTrace();
    }

    broadcastCompletion(-1);
  }

  private static void broadcastCompletion(int count) {
    Intent intent = new Intent(ACTION_UPLOAD_COMPLETE);
    intent.putExtra(EXTRA_NUM_POINTS, count);
    LocalBroadcastManager.getInstance(WifiScanApplication.getInstance()).sendBroadcast(intent);
  }

}

Java Source Code List

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