| /* |
| * Copyright (C) 2016 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.server.usb; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UserIdInt; |
| import android.content.Context; |
| import android.content.pm.UserInfo; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.service.usb.UsbSettingsManagerProto; |
| import android.util.SparseArray; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.util.dump.DualDumpOutputStream; |
| |
| import java.util.List; |
| |
| /** |
| * Maintains all {@link UsbUserSettingsManager} for all users. |
| */ |
| class UsbSettingsManager { |
| private static final String LOG_TAG = UsbSettingsManager.class.getSimpleName(); |
| private static final boolean DEBUG = false; |
| |
| /** Context to be used by this module */ |
| private final @NonNull Context mContext; |
| |
| /** Map from user id to {@link UsbUserSettingsManager} for the user */ |
| @GuardedBy("mSettingsByUser") |
| private final SparseArray<UsbUserSettingsManager> mSettingsByUser = new SparseArray<>(); |
| |
| /** |
| * Map from the parent profile's user id to {@link UsbProfileGroupSettingsManager} for the |
| * group. |
| */ |
| @GuardedBy("mSettingsByProfileGroup") |
| private final SparseArray<UsbProfileGroupSettingsManager> mSettingsByProfileGroup |
| = new SparseArray<>(); |
| private UserManager mUserManager; |
| private UsbHandlerManager mUsbHandlerManager; |
| |
| final UsbService mUsbService; |
| |
| UsbSettingsManager(@NonNull Context context, UsbService usbService) { |
| mContext = context; |
| mUsbService = usbService; |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| mUsbHandlerManager = new UsbHandlerManager(context); |
| } |
| |
| /** |
| * Get the {@link UsbUserSettingsManager} for a user. |
| * |
| * @param userId The id of the user |
| * |
| * @return The settings for the user |
| */ |
| @NonNull UsbUserSettingsManager getSettingsForUser(@UserIdInt int userId) { |
| synchronized (mSettingsByUser) { |
| UsbUserSettingsManager settings = mSettingsByUser.get(userId); |
| if (settings == null) { |
| settings = new UsbUserSettingsManager(mContext, UserHandle.of(userId)); |
| mSettingsByUser.put(userId, settings); |
| } |
| return settings; |
| } |
| } |
| |
| /** |
| * Get the {@link UsbProfileGroupSettingsManager} for a user. |
| * |
| * @param user Any user of the profile group |
| * |
| * @return The settings for the profile group |
| */ |
| @NonNull UsbProfileGroupSettingsManager getSettingsForProfileGroup(@NonNull UserHandle user) { |
| UserHandle parentUser; |
| |
| UserInfo parentUserInfo = mUserManager.getProfileParent(user.getIdentifier()); |
| if (parentUserInfo != null) { |
| parentUser = parentUserInfo.getUserHandle(); |
| } else { |
| parentUser = user; |
| } |
| |
| synchronized (mSettingsByProfileGroup) { |
| UsbProfileGroupSettingsManager settings = mSettingsByProfileGroup.get( |
| parentUser.getIdentifier()); |
| if (settings == null) { |
| settings = new UsbProfileGroupSettingsManager(mContext, parentUser, this, |
| mUsbHandlerManager); |
| mSettingsByProfileGroup.put(parentUser.getIdentifier(), settings); |
| } |
| return settings; |
| } |
| } |
| |
| /** |
| * Remove the settings for a user. |
| * |
| * @param userToRemove The user to remove |
| */ |
| void remove(@NonNull UserHandle userToRemove) { |
| synchronized (mSettingsByUser) { |
| mSettingsByUser.remove(userToRemove.getIdentifier()); |
| } |
| |
| synchronized (mSettingsByProfileGroup) { |
| if (mSettingsByProfileGroup.indexOfKey(userToRemove.getIdentifier()) >= 0) { |
| // The user to remove is the parent user of the group. The parent is the last user |
| // that gets removed. All state will be removed with the user |
| mSettingsByProfileGroup.remove(userToRemove.getIdentifier()); |
| } else { |
| // We cannot find the parent user of the user that is removed, hence try to remove |
| // it from all profile groups. |
| int numProfileGroups = mSettingsByProfileGroup.size(); |
| for (int i = 0; i < numProfileGroups; i++) { |
| mSettingsByProfileGroup.valueAt(i).removeUser(userToRemove); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Dump all settings of all users. |
| */ |
| void dump(@NonNull DualDumpOutputStream dump, String idName, long id) { |
| long token = dump.start(idName, id); |
| |
| synchronized (mSettingsByUser) { |
| List<UserInfo> users = mUserManager.getUsers(); |
| int numUsers = users.size(); |
| for (int i = 0; i < numUsers; i++) { |
| getSettingsForUser(users.get(i).id).dump(dump, "user_settings", |
| UsbSettingsManagerProto.USER_SETTINGS); |
| } |
| } |
| |
| synchronized (mSettingsByProfileGroup) { |
| int numProfileGroups = mSettingsByProfileGroup.size(); |
| for (int i = 0; i < numProfileGroups; i++) { |
| mSettingsByProfileGroup.valueAt(i).dump(dump, "profile_group_settings", |
| UsbSettingsManagerProto.PROFILE_GROUP_SETTINGS); |
| } |
| } |
| |
| dump.end(token); |
| } |
| } |