| /* |
| * Copyright (C) 2016 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.net.ConnectivityMetricsEvent; |
| import android.net.IIpConnectivityMetrics; |
| import android.os.Parcelable; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.BitUtils; |
| |
| /** |
| * Class for logging IpConnectvity events with IpConnectivityMetrics |
| * {@hide} |
| */ |
| public class IpConnectivityLog { |
| private static final String TAG = IpConnectivityLog.class.getSimpleName(); |
| private static final boolean DBG = false; |
| |
| public static final String SERVICE_NAME = "connmetrics"; |
| |
| private IIpConnectivityMetrics mService; |
| |
| public IpConnectivityLog() { |
| } |
| |
| @VisibleForTesting |
| public IpConnectivityLog(IIpConnectivityMetrics service) { |
| mService = service; |
| } |
| |
| private boolean checkLoggerService() { |
| if (mService != null) { |
| return true; |
| } |
| final IIpConnectivityMetrics service = |
| IIpConnectivityMetrics.Stub.asInterface(ServiceManager.getService(SERVICE_NAME)); |
| if (service == null) { |
| return false; |
| } |
| // Two threads racing here will write the same pointer because getService |
| // is idempotent once MetricsLoggerService is initialized. |
| mService = service; |
| return true; |
| } |
| |
| /** |
| * Log a ConnectivityMetricsEvent. |
| * @param ev the event to log. If the event timestamp is 0, |
| * the timestamp is set to the current time in milliseconds. |
| * @return true if the event was successfully logged. |
| */ |
| public boolean log(ConnectivityMetricsEvent ev) { |
| if (!checkLoggerService()) { |
| if (DBG) { |
| Log.d(TAG, SERVICE_NAME + " service was not ready"); |
| } |
| return false; |
| } |
| if (ev.timestamp == 0) { |
| ev.timestamp = System.currentTimeMillis(); |
| } |
| try { |
| int left = mService.logEvent(ev); |
| return left >= 0; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error logging event", e); |
| return false; |
| } |
| } |
| |
| /** |
| * Log an IpConnectivity event. |
| * @param timestamp is the epoch timestamp of the event in ms. |
| * If the timestamp is 0, the timestamp is set to the current time in milliseconds. |
| * @param data is a Parcelable instance representing the event. |
| * @return true if the event was successfully logged. |
| */ |
| public boolean log(long timestamp, Parcelable data) { |
| ConnectivityMetricsEvent ev = makeEv(data); |
| ev.timestamp = timestamp; |
| return log(ev); |
| } |
| |
| /** |
| * Log an IpConnectivity event. |
| * @param ifname the network interface associated with the event. |
| * @param data is a Parcelable instance representing the event. |
| * @return true if the event was successfully logged. |
| */ |
| public boolean log(String ifname, Parcelable data) { |
| ConnectivityMetricsEvent ev = makeEv(data); |
| ev.ifname = ifname; |
| return log(ev); |
| } |
| |
| /** |
| * Log an IpConnectivity event. |
| * @param netid the id of the network associated with the event. |
| * @param transports the current transports of the network associated with the event, as defined |
| * in NetworkCapabilities. |
| * @param data is a Parcelable instance representing the event. |
| * @return true if the event was successfully logged. |
| */ |
| public boolean log(int netid, int[] transports, Parcelable data) { |
| ConnectivityMetricsEvent ev = makeEv(data); |
| ev.netId = netid; |
| ev.transports = BitUtils.packBits(transports); |
| return log(ev); |
| } |
| |
| /** |
| * Log an IpConnectivity event. |
| * @param data is a Parcelable instance representing the event. |
| * @return true if the event was successfully logged. |
| */ |
| public boolean log(Parcelable data) { |
| return log(makeEv(data)); |
| } |
| |
| private static ConnectivityMetricsEvent makeEv(Parcelable data) { |
| ConnectivityMetricsEvent ev = new ConnectivityMetricsEvent(); |
| ev.data = data; |
| return ev; |
| } |
| } |