79 lines
2.5 KiB
Java
79 lines
2.5 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.voicemail.impl;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.os.Build.VERSION_CODES;
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import android.support.annotation.Nullable;
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import android.telecom.PhoneAccountHandle;
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import android.telephony.TelephonyManager;
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import com.google.auto.value.AutoValue;
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import java.util.Optional;
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/** Identifies a carrier. */
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@AutoValue
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@TargetApi(VERSION_CODES.O)
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@SuppressWarnings({"missingpermission"})
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public abstract class CarrierIdentifier {
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public abstract String mccMnc();
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/**
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* Group ID Level 1. Used to identify MVNO(Mobile Virtual Network Operators) who subleases other
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* carrier's network and share their mccMnc. MVNO should have a GID1 different from the host.
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*/
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public abstract String gid1();
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/** Builder for the matcher */
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@AutoValue.Builder
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public abstract static class Builder {
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public abstract Builder setMccMnc(String mccMnc);
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public abstract Builder setGid1(String gid1);
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public abstract CarrierIdentifier build();
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}
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public static Builder builder() {
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return new AutoValue_CarrierIdentifier.Builder().setGid1("");
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}
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/** Create a identifier for a {@link PhoneAccountHandle}. Absent if the handle is not valid. */
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public static Optional<CarrierIdentifier> forHandle(
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Context context, @Nullable PhoneAccountHandle phoneAccountHandle) {
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if (phoneAccountHandle == null) {
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return Optional.empty();
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}
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TelephonyManager telephonyManager =
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context
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.getSystemService(TelephonyManager.class)
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.createForPhoneAccountHandle(phoneAccountHandle);
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if (telephonyManager == null) {
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return Optional.empty();
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}
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String gid1 = telephonyManager.getGroupIdLevel1();
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if (gid1 == null) {
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gid1 = "";
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}
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return Optional.of(
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builder().setMccMnc(telephonyManager.getSimOperator()).setGid1(gid1).build());
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}
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}
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