| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net.metrics; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.net.captiveportal.CaptivePortalProbeResult; |
| import android.util.Log; |
| |
| import com.android.internal.util.HexDump; |
| import com.android.server.connectivity.nano.DataStallEventProto; |
| |
| /** |
| * Collection of utilities for data stall metrics. |
| * |
| * To see if the logs are properly sent to statsd, execute following command. |
| * |
| * $ adb shell cmd stats print-logs |
| * $ adb logcat | grep statsd OR $ adb logcat -b stats |
| * |
| * @hide |
| */ |
| public class DataStallStatsUtils { |
| private static final String TAG = DataStallStatsUtils.class.getSimpleName(); |
| private static final boolean DBG = false; |
| |
| private static int probeResultToEnum(@Nullable final CaptivePortalProbeResult result) { |
| if (result == null) return DataStallEventProto.INVALID; |
| |
| // TODO: Add partial connectivity support. |
| if (result.isSuccessful()) { |
| return DataStallEventProto.VALID; |
| } else if (result.isPortal()) { |
| return DataStallEventProto.PORTAL; |
| } else { |
| return DataStallEventProto.INVALID; |
| } |
| } |
| |
| /** |
| * Write the metric to {@link StatsLog}. |
| */ |
| public static void write(@NonNull final DataStallDetectionStats stats, |
| @NonNull final CaptivePortalProbeResult result) { |
| int validationResult = probeResultToEnum(result); |
| if (DBG) { |
| Log.d(TAG, "write: " + stats + " with result: " + validationResult |
| + ", dns: " + HexDump.toHexString(stats.mDns)); |
| } |
| // TODO(b/124613085): Send to Statsd once the public StatsLog API is ready. |
| } |
| } |