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Commit 41da94c5 authored by linyuh's avatar linyuh Committed by Copybara-Service
Browse files

Implement EmergencyPhoneLookup for checking if a number is an emergency number. 

Bug: 71719349
Test: EmergencyPhoneLookupTest, PhoneLookupInfoConsolidatorTest
PiperOrigin-RevId: 195691356
Change-Id: I705721fa6e6a22e5b2d541578b83196181c895eb
parent cf0905f0

java/com/android/dialer/calllog/database/contract/number_attributes.proto

+4 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ package com.android.dialer; 
import "java/com/android/dialer/logging/contact_source.proto";



// Information related to the phone number of the call.

// Next ID: 14

// Next ID: 15

message NumberAttributes {

  // The name (which may be a person's name or business name, but not a number)

  // formatted exactly as it should appear to the user. If the user's locale or
@@ -74,4 +74,7 @@ message NumberAttributes { 
  // Description of the number's geolocation (e.g., "Mountain View, CA").

  // This string is for display purpose only.

  optional string geolocation = 13;



  // Whether the number is an emergency number.

  optional bool is_emergency_number = 14;

}
 
 No newline at end of file

java/com/android/dialer/calllogutils/NumberAttributesConverter.java

+2 −1
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ public final class NumberAttributesConverter { 
        .setIsCp2InfoIncomplete(phoneLookupInfoConsolidator.isDefaultCp2InfoIncomplete())

        .setContactSource(phoneLookupInfoConsolidator.getContactSource())

        .setCanSupportCarrierVideoCall(phoneLookupInfoConsolidator.canSupportCarrierVideoCall())

        .setGeolocation(phoneLookupInfoConsolidator.getGeolocation());

        .setGeolocation(phoneLookupInfoConsolidator.getGeolocation())

        .setIsEmergencyNumber(phoneLookupInfoConsolidator.isEmergencyNumber());

  }

}

java/com/android/dialer/phonelookup/PhoneLookupModule.java

+3 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ import com.android.dialer.phonelookup.cequint.CequintPhoneLookup; 
import com.android.dialer.phonelookup.cnap.CnapPhoneLookup;

import com.android.dialer.phonelookup.cp2.Cp2DefaultDirectoryPhoneLookup;

import com.android.dialer.phonelookup.cp2.Cp2ExtendedDirectoryPhoneLookup;

import com.android.dialer.phonelookup.emergency.EmergencyPhoneLookup;

import com.android.dialer.phonelookup.spam.SpamPhoneLookup;

import com.google.common.collect.ImmutableList;

import dagger.Module;
@@ -37,6 +38,7 @@ public abstract class PhoneLookupModule { 
      CnapPhoneLookup cnapPhoneLookup,

      Cp2DefaultDirectoryPhoneLookup cp2DefaultDirectoryPhoneLookup,

      Cp2ExtendedDirectoryPhoneLookup cp2ExtendedDirectoryPhoneLookup,

      EmergencyPhoneLookup emergencyPhoneLookup,

      SystemBlockedNumberPhoneLookup systemBlockedNumberPhoneLookup,

      SpamPhoneLookup spamPhoneLookup) {

    return ImmutableList.of(
@@ -44,6 +46,7 @@ public abstract class PhoneLookupModule { 
        cnapPhoneLookup,

        cp2DefaultDirectoryPhoneLookup,

        cp2ExtendedDirectoryPhoneLookup,

        emergencyPhoneLookup,

        systemBlockedNumberPhoneLookup,

        spamPhoneLookup);

  }

java/com/android/dialer/phonelookup/consolidator/PhoneLookupInfoConsolidator.java

+8 −0
Original line number Diff line number Diff line
@@ -345,6 +345,14 @@ public final class PhoneLookupInfoConsolidator { 
    return phoneLookupInfo.getDefaultCp2Info().getIsIncomplete();

  }



  /**

   * The {@link PhoneLookupInfo} passed to the constructor is associated with a number. This method

   * returns whether the number is an emergency number (e.g., 911 in the U.S.).

   */

  public boolean isEmergencyNumber() {

    return phoneLookupInfo.getEmergencyInfo().getIsEmergencyNumber();

  }



  /**

   * The {@link PhoneLookupInfo} passed to the constructor is associated with a number. This method

   * returns whether the number can be reported as invalid.

java/com/android/dialer/phonelookup/emergency/EmergencyPhoneLookup.java

0 → 100644
+117 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2018 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 com.android.dialer.phonelookup.emergency;



import android.content.Context;

import com.android.dialer.DialerPhoneNumber;

import com.android.dialer.common.concurrent.Annotations.BackgroundExecutor;

import com.android.dialer.inject.ApplicationContext;

import com.android.dialer.phonelookup.PhoneLookup;

import com.android.dialer.phonelookup.PhoneLookupInfo;

import com.android.dialer.phonelookup.PhoneLookupInfo.EmergencyInfo;

import com.android.dialer.phonenumberutil.PhoneNumberHelper;

import com.google.common.collect.ImmutableMap;

import com.google.common.collect.ImmutableSet;

import com.google.common.util.concurrent.Futures;

import com.google.common.util.concurrent.ListenableFuture;

import com.google.common.util.concurrent.ListeningExecutorService;

import javax.inject.Inject;



/**

 * PhoneLookup implementation for checking if a number is an emergency number.

 *

 * <p>The check has to be done in a PhoneLookup as it involves detecting the user's location and

 * obtaining SIM info, which are expensive operations. Doing it in the main thread will make the UI

 * super janky.

 */

public class EmergencyPhoneLookup implements PhoneLookup<EmergencyInfo> {



  private final Context appContext;

  private final ListeningExecutorService backgroundExecutorService;



  @Inject

  EmergencyPhoneLookup(

      @ApplicationContext Context appContext,

      @BackgroundExecutor ListeningExecutorService backgroundExecutorService) {

    this.appContext = appContext;

    this.backgroundExecutorService = backgroundExecutorService;

  }



  @Override

  public ListenableFuture<EmergencyInfo> lookup(DialerPhoneNumber dialerPhoneNumber) {

    return backgroundExecutorService.submit(

        () ->

            EmergencyInfo.newBuilder()

                .setIsEmergencyNumber(

                    PhoneNumberHelper.isLocalEmergencyNumber(

                        appContext, dialerPhoneNumber.getNormalizedNumber()))

                .build());

  }



  @Override

  public ListenableFuture<Boolean> isDirty(ImmutableSet<DialerPhoneNumber> phoneNumbers) {

    return Futures.immediateFuture(false);

  }



  @Override

  public ListenableFuture<ImmutableMap<DialerPhoneNumber, EmergencyInfo>> getMostRecentInfo(

      ImmutableMap<DialerPhoneNumber, EmergencyInfo> existingInfoMap) {

    // We can update EmergencyInfo for all numbers in the provided map, but the negative impact on

    // performance is intolerable as checking a single number involves detecting the user's location

    // and obtaining SIM info, which will take more than 100ms (see

    // android.telephony.PhoneNumberUtils#isLocalEmergencyNumber(Context, int, String) for details).

    //

    // As emergency numbers won't change in a country, the only case we will miss is that

    //   (1) a number is an emergency number in country A but not in country B,

    //   (2) a user has an emergency call entry when they are in country A, and

    //   (3) they travel from A to B,

    // which is a rare event.

    //

    // We can update the implementation if telecom supports batch check in the future.

    return Futures.immediateFuture(existingInfoMap);

  }



  @Override

  public void setSubMessage(PhoneLookupInfo.Builder destination, EmergencyInfo subMessage) {

    destination.setEmergencyInfo(subMessage);

  }



  @Override

  public EmergencyInfo getSubMessage(PhoneLookupInfo phoneLookupInfo) {

    return phoneLookupInfo.getEmergencyInfo();

  }



  @Override

  public ListenableFuture<Void> onSuccessfulBulkUpdate() {

    return Futures.immediateFuture(null);

  }



  @Override

  public void registerContentObservers() {

    // No content observer to register.

  }



  @Override

  public void unregisterContentObservers() {

    // Nothing to be done as no content observer is registered.

  }



  @Override

  public ListenableFuture<Void> clearData() {

    return Futures.immediateFuture(null);

  }

}