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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.net;
     18 
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 import com.android.internal.util.BitUtils;
     22 
     23 /**
     24  * Represents a core networking event defined in package android.net.metrics.
     25  * Logged by IpConnectivityLog and managed by ConnectivityMetrics service.
     26  * {@hide}
     27  * */
     28 public final class ConnectivityMetricsEvent implements Parcelable {
     29 
     30     /** Time when this event was collected, as returned by System.currentTimeMillis(). */
     31     public long timestamp;
     32     /** Transports of the network associated with the event, as defined in NetworkCapabilities. */
     33     public long transports;
     34     /** Network id of the network associated with the event, or 0 if unspecified. */
     35     public int netId;
     36     /** Name of the network interface associated with the event, or null if unspecified. */
     37     public String ifname;
     38     /** Opaque event-specific data. */
     39     public Parcelable data;
     40 
     41     public ConnectivityMetricsEvent() {
     42     }
     43 
     44     private ConnectivityMetricsEvent(Parcel in) {
     45         timestamp = in.readLong();
     46         transports = in.readLong();
     47         netId = in.readInt();
     48         ifname = in.readString();
     49         data = in.readParcelable(null);
     50     }
     51 
     52     /** Implement the Parcelable interface */
     53     public static final Parcelable.Creator<ConnectivityMetricsEvent> CREATOR
     54             = new Parcelable.Creator<ConnectivityMetricsEvent> (){
     55         public ConnectivityMetricsEvent createFromParcel(Parcel source) {
     56             return new ConnectivityMetricsEvent(source);
     57         }
     58 
     59         public ConnectivityMetricsEvent[] newArray(int size) {
     60             return new ConnectivityMetricsEvent[size];
     61         }
     62     };
     63 
     64     @Override
     65     public int describeContents() {
     66         return 0;
     67     }
     68 
     69     @Override
     70     public void writeToParcel(Parcel dest, int flags) {
     71         dest.writeLong(timestamp);
     72         dest.writeLong(transports);
     73         dest.writeInt(netId);
     74         dest.writeString(ifname);
     75         dest.writeParcelable(data, 0);
     76     }
     77 
     78     @Override
     79     public String toString() {
     80         StringBuilder buffer = new StringBuilder("ConnectivityMetricsEvent(");
     81         buffer.append(String.format("%tT.%tL", timestamp, timestamp));
     82         if (netId != 0) {
     83             buffer.append(", ").append(netId);
     84         }
     85         if (ifname != null) {
     86             buffer.append(", ").append(ifname);
     87         }
     88         for (int t : BitUtils.unpackBits(transports)) {
     89             buffer.append(", ").append(NetworkCapabilities.transportNameOf(t));
     90         }
     91         buffer.append("): ").append(data.toString());
     92         return buffer.toString();
     93     }
     94 }
     95