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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.metrics;
     18 
     19 import android.annotation.SystemApi;
     20 import android.os.Parcel;
     21 import android.os.Parcelable;
     22 
     23 /**
     24  * An event logged for an interface with APF capabilities when its IpManager state machine exits.
     25  * {@hide}
     26  */
     27 @SystemApi
     28 public final class ApfStats implements Parcelable {
     29 
     30     public final long durationMs;     // time interval in milliseconds these stastistics covers
     31     public final int receivedRas;     // number of received RAs
     32     public final int matchingRas;     // number of received RAs matching a known RA
     33     public final int droppedRas;      // number of received RAs ignored due to the MAX_RAS limit
     34     public final int zeroLifetimeRas; // number of received RAs with a minimum lifetime of 0
     35     public final int parseErrors;     // number of received RAs that could not be parsed
     36     public final int programUpdates;  // number of APF program updates
     37     public final int maxProgramSize;  // maximum APF program size advertised by hardware
     38 
     39     /** {@hide} */
     40     public ApfStats(long durationMs, int receivedRas, int matchingRas, int droppedRas,
     41             int zeroLifetimeRas, int parseErrors, int programUpdates, int maxProgramSize) {
     42         this.durationMs = durationMs;
     43         this.receivedRas = receivedRas;
     44         this.matchingRas = matchingRas;
     45         this.droppedRas = droppedRas;
     46         this.zeroLifetimeRas = zeroLifetimeRas;
     47         this.parseErrors = parseErrors;
     48         this.programUpdates = programUpdates;
     49         this.maxProgramSize = maxProgramSize;
     50     }
     51 
     52     private ApfStats(Parcel in) {
     53         this.durationMs = in.readLong();
     54         this.receivedRas = in.readInt();
     55         this.matchingRas = in.readInt();
     56         this.droppedRas = in.readInt();
     57         this.zeroLifetimeRas = in.readInt();
     58         this.parseErrors = in.readInt();
     59         this.programUpdates = in.readInt();
     60         this.maxProgramSize = in.readInt();
     61     }
     62 
     63     @Override
     64     public void writeToParcel(Parcel out, int flags) {
     65         out.writeLong(durationMs);
     66         out.writeInt(receivedRas);
     67         out.writeInt(matchingRas);
     68         out.writeInt(droppedRas);
     69         out.writeInt(zeroLifetimeRas);
     70         out.writeInt(parseErrors);
     71         out.writeInt(programUpdates);
     72         out.writeInt(maxProgramSize);
     73     }
     74 
     75     @Override
     76     public int describeContents() {
     77         return 0;
     78     }
     79 
     80     @Override
     81     public String toString() {
     82         return new StringBuilder("ApfStats(")
     83                 .append(String.format("%dms ", durationMs))
     84                 .append(String.format("%dB RA: {", maxProgramSize))
     85                 .append(String.format("%d received, ", receivedRas))
     86                 .append(String.format("%d matching, ", matchingRas))
     87                 .append(String.format("%d dropped, ", droppedRas))
     88                 .append(String.format("%d zero lifetime, ", zeroLifetimeRas))
     89                 .append(String.format("%d parse errors, ", parseErrors))
     90                 .append(String.format("%d program updates})", programUpdates))
     91                 .toString();
     92     }
     93 
     94     public static final Parcelable.Creator<ApfStats> CREATOR = new Parcelable.Creator<ApfStats>() {
     95         public ApfStats createFromParcel(Parcel in) {
     96             return new ApfStats(in);
     97         }
     98 
     99         public ApfStats[] newArray(int size) {
    100             return new ApfStats[size];
    101         }
    102     };
    103 }
    104