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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 
     22 import com.android.internal.util.BitUtils;
     23 
     24 /**
     25  * Represents a core networking event defined in package android.net.metrics.
     26  * Logged by IpConnectivityLog and managed by ConnectivityMetrics service.
     27  * {@hide}
     28  * */
     29 public final class ConnectivityMetricsEvent implements Parcelable {
     30 
     31     /** Time when this event was collected, as returned by System.currentTimeMillis(). */
     32     public long timestamp;
     33     /** Transports of the network associated with the event, as defined in NetworkCapabilities. */
     34     public long transports;
     35     /** Network id of the network associated with the event, or 0 if unspecified. */
     36     public int netId;
     37     /** Name of the network interface associated with the event, or null if unspecified. */
     38     public String ifname;
     39     /** Opaque event-specific data. */
     40     public Parcelable data;
     41 
     42     public ConnectivityMetricsEvent() {
     43     }
     44 
     45     private ConnectivityMetricsEvent(Parcel in) {
     46         timestamp = in.readLong();
     47         transports = in.readLong();
     48         netId = in.readInt();
     49         ifname = in.readString();
     50         data = in.readParcelable(null);
     51     }
     52 
     53     /** Implement the Parcelable interface */
     54     public static final Parcelable.Creator<ConnectivityMetricsEvent> CREATOR
     55             = new Parcelable.Creator<ConnectivityMetricsEvent> (){
     56         public ConnectivityMetricsEvent createFromParcel(Parcel source) {
     57             return new ConnectivityMetricsEvent(source);
     58         }
     59 
     60         public ConnectivityMetricsEvent[] newArray(int size) {
     61             return new ConnectivityMetricsEvent[size];
     62         }
     63     };
     64 
     65     @Override
     66     public int describeContents() {
     67         return 0;
     68     }
     69 
     70     @Override
     71     public void writeToParcel(Parcel dest, int flags) {
     72         dest.writeLong(timestamp);
     73         dest.writeLong(transports);
     74         dest.writeInt(netId);
     75         dest.writeString(ifname);
     76         dest.writeParcelable(data, 0);
     77     }
     78 
     79     @Override
     80     public String toString() {
     81         StringBuilder buffer = new StringBuilder("ConnectivityMetricsEvent(");
     82         buffer.append(String.format("%tT.%tL", timestamp, timestamp));
     83         if (netId != 0) {
     84             buffer.append(", ").append("netId=").append(netId);
     85         }
     86         if (ifname != null) {
     87             buffer.append(", ").append(ifname);
     88         }
     89         for (int t : BitUtils.unpackBits(transports)) {
     90             buffer.append(", ").append(NetworkCapabilities.transportNameOf(t));
     91         }
     92         buffer.append("): ").append(data.toString());
     93         return buffer.toString();
     94     }
     95 }
     96