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Commit 8f82d513 authored by Kiwon Park's avatar Kiwon Park
Browse files

Add anomaly reports when there are too many concurrent calls at the start of voice calls. 

Bug: 184961070
Test: m
Change-Id: I1fb5928abe227b7279d9d981d72b1bfe7fc18f9f
parent d0e84608

src/java/com/android/internal/telephony/metrics/VoiceCallSessionStats.java

+13 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ import android.os.SystemClock; 
import android.telecom.VideoProfile;

import android.telecom.VideoProfile.VideoState;

import android.telephony.Annotation.NetworkType;

import android.telephony.AnomalyReporter;

import android.telephony.DisconnectCause;

import android.telephony.ServiceState;

import android.telephony.TelephonyManager;
@@ -83,6 +84,7 @@ import java.util.Arrays; 
import java.util.HashSet;

import java.util.List;

import java.util.Set;

import java.util.UUID;

import java.util.stream.Collectors;



/** Collects voice call events per phone ID for the pulled atom. */
@@ -131,6 +133,13 @@ public class VoiceCallSessionStats { 
    /** Holds call duration buckets with values as their upper bounds in milliseconds. */

    private static final SparseIntArray CALL_DURATION_MAP = buildCallDurationMap();



    /** UUID for reporting concurrent call anomaly */

    private static final UUID CONCURRENT_CALL_ANOMALY_UUID =

            UUID.fromString("76780b5a-623e-48a4-be3f-925e05177c9c");



    /** If the number of concurrent calls exceeds this number, report anomaly*/

    private static final int MAX_NORMAL_CONCURRENT_CALLS = 3;



    /**

     * Tracks statistics for each call connection, indexed with ID returned by {@link

     * #getConnectionId}.
@@ -456,6 +465,10 @@ public class VoiceCallSessionStats { 
        }



        proto.concurrentCallCountAtStart = mCallProtos.size();

        if (proto.concurrentCallCountAtStart > MAX_NORMAL_CONCURRENT_CALLS) {

            AnomalyReporter.reportAnomaly(

                    CONCURRENT_CALL_ANOMALY_UUID, "Anomalous number of concurrent calls");

        }

        mCallProtos.put(id, proto);



        // RAT call count needs to be updated