| /* |
| * Copyright (C) 2019 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.car.audio; |
| |
| |
| import static android.car.media.CarAudioManager.PRIMARY_AUDIO_ZONE; |
| import static android.media.AudioDeviceInfo.TYPE_BUILTIN_MIC; |
| |
| import android.media.AudioDeviceAttributes; |
| import android.util.SparseArray; |
| |
| import com.android.internal.util.Preconditions; |
| |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| final class CarAudioZonesValidator { |
| private CarAudioZonesValidator() { |
| } |
| |
| static void validate(SparseArray<CarAudioZone> carAudioZones) { |
| validateAtLeastOneZoneDefined(carAudioZones); |
| validateVolumeGroupsForEachZone(carAudioZones); |
| validateEachAddressAppearsAtMostOnce(carAudioZones); |
| validatePrimaryZoneHasInputDevice(carAudioZones); |
| } |
| |
| private static void validatePrimaryZoneHasInputDevice(SparseArray<CarAudioZone> carAudioZones) { |
| CarAudioZone primaryZone = carAudioZones.get(PRIMARY_AUDIO_ZONE); |
| List<AudioDeviceAttributes> devices = primaryZone.getInputAudioDevices(); |
| Preconditions.checkCollectionNotEmpty(devices, "Primary Zone Input Devices"); |
| for (int index = 0; index < devices.size(); index++) { |
| AudioDeviceAttributes device = devices.get(index); |
| if (device.getType() == TYPE_BUILTIN_MIC) { |
| return; |
| } |
| } |
| throw new RuntimeException("Primary Zone must have at least one microphone input device"); |
| } |
| |
| private static void validateAtLeastOneZoneDefined(SparseArray<CarAudioZone> carAudioZones) { |
| if (carAudioZones.size() == 0) { |
| throw new RuntimeException("At least one zone should be defined"); |
| } |
| } |
| |
| private static void validateVolumeGroupsForEachZone(SparseArray<CarAudioZone> carAudioZones) { |
| for (int i = 0; i < carAudioZones.size(); i++) { |
| CarAudioZone zone = carAudioZones.valueAt(i); |
| if (!zone.validateVolumeGroups()) { |
| throw new RuntimeException( |
| "Invalid volume groups configuration for zone " + zone.getId()); |
| } |
| } |
| } |
| |
| private static void validateEachAddressAppearsAtMostOnce( |
| SparseArray<CarAudioZone> carAudioZones) { |
| Set<String> addresses = new HashSet<>(); |
| for (int i = 0; i < carAudioZones.size(); i++) { |
| CarAudioZone zone = carAudioZones.valueAt(i); |
| for (CarVolumeGroup carVolumeGroup : zone.getVolumeGroups()) { |
| for (String address : carVolumeGroup.getAddresses()) { |
| if (!addresses.add(address)) { |
| throw new RuntimeException("Device with address " |
| + address + " appears in multiple volume groups or audio zones"); |
| } |
| } |
| } |
| } |
| } |
| } |