Neil Fuller | f7346ec | 2019-08-30 18:02:47 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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.timezone; |
| 18 | |
| 19 | import android.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
| 21 | import android.annotation.SystemApi; |
| 22 | |
| 23 | import java.util.Objects; |
| 24 | |
| 25 | /** |
| 26 | * A class that can find telephony networks loaded via {@link TelephonyLookup}. |
| 27 | * |
| 28 | * @hide |
| 29 | */ |
| 30 | @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES) |
| 31 | public class TelephonyNetworkFinder { |
| 32 | |
| 33 | @NonNull |
| 34 | private final libcore.timezone.TelephonyNetworkFinder mDelegate; |
| 35 | |
| 36 | TelephonyNetworkFinder(libcore.timezone.TelephonyNetworkFinder delegate) { |
| 37 | mDelegate = Objects.requireNonNull(delegate); |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Returns information held about a specific MCC + MNC combination. It is expected for this |
| 42 | * method to return {@code null}. Only known, unusual networks will typically have information |
| 43 | * returned, e.g. if they operate in countries other than the one suggested by their MCC. |
| 44 | */ |
| 45 | @Nullable |
| 46 | public TelephonyNetwork findNetworkByMccMnc(@NonNull String mcc, @NonNull String mnc) { |
| 47 | Objects.requireNonNull(mcc); |
| 48 | Objects.requireNonNull(mnc); |
| 49 | |
| 50 | libcore.timezone.TelephonyNetwork telephonyNetworkDelegate = |
| 51 | mDelegate.findNetworkByMccMnc(mcc, mnc); |
| 52 | return telephonyNetworkDelegate != null |
| 53 | ? new TelephonyNetwork(telephonyNetworkDelegate) : null; |
| 54 | } |
| 55 | } |