| /* |
| * 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 static android.net.ConnectivityManager.NETID_UNSET; |
| |
| import android.net.NetworkCapabilities; |
| |
| import com.android.internal.util.BitUtils; |
| |
| import java.util.StringJoiner; |
| |
| /** |
| * An event recorded by ConnectivityService when there is a change in the default network. |
| * {@hide} |
| */ |
| public class DefaultNetworkEvent { |
| |
| // The creation time in milliseconds of this DefaultNetworkEvent. |
| public final long creationTimeMs; |
| // The network ID of the network or NETID_UNSET if none. |
| public int netId = NETID_UNSET; |
| // The list of transport types, as defined in NetworkCapabilities.java. |
| public int transports; |
| // The list of transport types of the last previous default network. |
| public int previousTransports; |
| // Whether the network has IPv4/IPv6 connectivity. |
| public boolean ipv4; |
| public boolean ipv6; |
| // The initial network score when this network became the default network. |
| public int initialScore; |
| // The initial network score when this network stopped being the default network. |
| public int finalScore; |
| // The total duration in milliseconds this network was the default network. |
| public long durationMs; |
| // The total duration in milliseconds this network was the default network and was validated. |
| public long validatedMs; |
| |
| public DefaultNetworkEvent(long timeMs) { |
| creationTimeMs = timeMs; |
| } |
| |
| /** Update the durationMs of this DefaultNetworkEvent for the given current time. */ |
| public void updateDuration(long timeMs) { |
| durationMs = timeMs - creationTimeMs; |
| } |
| |
| @Override |
| public String toString() { |
| StringJoiner j = new StringJoiner(", ", "DefaultNetworkEvent(", ")"); |
| j.add("netId=" + netId); |
| for (int t : BitUtils.unpackBits(transports)) { |
| j.add(NetworkCapabilities.transportNameOf(t)); |
| } |
| j.add("ip=" + ipSupport()); |
| if (initialScore > 0) { |
| j.add("initial_score=" + initialScore); |
| } |
| if (finalScore > 0) { |
| j.add("final_score=" + finalScore); |
| } |
| j.add(String.format("duration=%.0fs", durationMs / 1000.0)); |
| j.add(String.format("validation=%04.1f%%", (validatedMs * 100.0) / durationMs)); |
| return j.toString(); |
| } |
| |
| private String ipSupport() { |
| if (ipv4 && ipv6) { |
| return "IPv4v6"; |
| } |
| if (ipv6) { |
| return "IPv6"; |
| } |
| if (ipv4) { |
| return "IPv4"; |
| } |
| return "NONE"; |
| } |
| } |