1 files changed, 168 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/utils/TileLoadingMeasurementUtils.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/utils/TileLoadingMeasurementUtils.java
new file mode 100644
index 0000000000..3247f30839
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/utils/TileLoadingMeasurementUtils.java
@@ -0,0 +1,168 @@
+package com.mapbox.mapboxsdk.testapp.utils;
+
+import android.app.ActivityManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.util.DisplayMetrics;
+import android.view.Display;
+import android.view.WindowManager;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import com.mapbox.mapboxsdk.MapStrictMode;
+import com.mapbox.mapboxsdk.Mapbox;
+import com.mapbox.mapboxsdk.module.http.HttpRequestUtil;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+import okhttp3.Interceptor;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import timber.log.Timber;
+
+import static com.mapbox.mapboxsdk.constants.MapboxConstants.DEFAULT_MEASURE_TILE_DOWNLOAD_ON;
+import static com.mapbox.mapboxsdk.constants.MapboxConstants.KEY_META_DATA_MEASURE_TILE_DOWNLOAD_ON;
+
+public class TileLoadingMeasurementUtils {
+
+  private static final String ATTRIBUTE_REQUEST_URL = "requestUrl";
+
+
+  public static void setUpTileLoadingMeasurement() {
+    if (isTileLoadingMeasurementOn()) {
+      OkHttpClient okHttpClient = new OkHttpClient.Builder()
+              .addNetworkInterceptor(new TileLoadingInterceptor())
+              .build();
+      HttpRequestUtil.setOkHttpClient(okHttpClient);
+    }
+  }
+
+  private static boolean isTileLoadingMeasurementOn() {
+    return isBooleanMetaDataValueOn(KEY_META_DATA_MEASURE_TILE_DOWNLOAD_ON,
+            DEFAULT_MEASURE_TILE_DOWNLOAD_ON);
+  }
+
+  private static boolean isBooleanMetaDataValueOn(@NonNull String propKey, boolean defaultValue) {
+
+    try {
+      // Try getting a custom value from the app Manifest
+      Context context = Mapbox.getApplicationContext();
+      ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(),
+              PackageManager.GET_META_DATA);
+      if (appInfo.metaData != null) {
+        return appInfo.metaData.getBoolean(propKey, defaultValue);
+      }
+    } catch (PackageManager.NameNotFoundException exception) {
+      Timber.e("Failed to read the package metadata: " + exception);
+      MapStrictMode.strictModeViolation(exception);
+    } catch (Exception exception) {
+      Timber.e("Failed to read key: " + propKey + " " + exception);
+      MapStrictMode.strictModeViolation(exception);
+    }
+    return defaultValue;
+  }
+
+
+  /**
+   * This Interceptor allows to measure time spent getting a response object over network.
+   * The following data will be collected:
+   *  responseCode, elapsedMS
+   *  requestUrl (request string till the question mark),
+   *  and device metadata.
+   */
+  static class TileLoadingInterceptor implements Interceptor {
+
+    private static String metadata = null;
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+      Request request = chain.request();
+      long elapsed = System.nanoTime();
+
+      Response response = chain.proceed(request);
+      elapsed = System.nanoTime() - elapsed;
+
+      triggerPerformanceEvent(response, elapsed / 1000000);
+
+      return response;
+    }
+
+    private void triggerPerformanceEvent(Response response, long elapsedMs) {
+      List<Attribute<String>> attributes = new ArrayList<>();
+      String request = getUrl(response.request());
+      attributes.add(new Attribute<>("requestUrl", request));
+      attributes.add(new Attribute<>("responseCode", String.valueOf(response.code())));
+
+      List<Attribute<Long>> counters = new ArrayList();
+      counters.add(new Attribute<>("elapsedMS", elapsedMs));
+
+      Bundle bundle = new Bundle();
+      Gson gson = new Gson();
+      bundle.putString("attributes", gson.toJson(attributes));
+      bundle.putString("counters", gson.toJson(counters));
+      bundle.putString("metadata", getMetadata());
+
+      Mapbox.getTelemetry().onPerformanceEvent(bundle);
+    }
+
+    private static String getUrl(Request request) {
+      String url = request.url().toString();
+      return url.substring(0, url.indexOf('?'));
+    }
+
+    private static String getMetadata() {
+      if (metadata == null) {
+        JsonObject metaData = new JsonObject();
+        metaData.addProperty("os", "android");
+        metaData.addProperty("manufacturer", Build.MANUFACTURER);
+        metaData.addProperty("brand", Build.BRAND);
+        metaData.addProperty("device", Build.MODEL);
+        metaData.addProperty("version", Build.VERSION.RELEASE);
+        metaData.addProperty("abi", Build.CPU_ABI);
+        metaData.addProperty("country", Locale.getDefault().getISO3Country());
+        metaData.addProperty("ram", getRam());
+        metaData.addProperty("screenSize", getWindowSize());
+
+        metadata = metaData.toString();
+      }
+      return metadata;
+    }
+
+    private static String getRam() {
+      ActivityManager actManager =
+              (ActivityManager) Mapbox.getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);
+      ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();
+      actManager.getMemoryInfo(memInfo);
+      return String.valueOf(memInfo.totalMem);
+    }
+
+    private static String getWindowSize() {
+      WindowManager windowManager =
+              (WindowManager) Mapbox.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
+      Display display = windowManager.getDefaultDisplay();
+      DisplayMetrics metrics = new DisplayMetrics();
+      display.getMetrics(metrics);
+      int width = metrics.widthPixels;
+      int height = metrics.heightPixels;
+      return "{" + width + "," + height + "}";
+    }
+  }
+
+  private static class Attribute<T> {
+    private String name;
+    private T value;
+
+    Attribute(String name, T value) {
+      this.name = name;
+      this.value = value;
+    }
+  }
+}