| /* |
| * Copyright (C) 2021 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.companion; |
| |
| import android.annotation.IntDef; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.companion.AssociationInfo; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * Interface for a store of {@link AssociationInfo}-s. |
| */ |
| public interface AssociationStore { |
| |
| @IntDef(prefix = { "CHANGE_TYPE_" }, value = { |
| CHANGE_TYPE_ADDED, |
| CHANGE_TYPE_REMOVED, |
| CHANGE_TYPE_UPDATED_ADDRESS_CHANGED, |
| CHANGE_TYPE_UPDATED_ADDRESS_UNCHANGED, |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| @interface ChangeType {} |
| |
| int CHANGE_TYPE_ADDED = 0; |
| int CHANGE_TYPE_REMOVED = 1; |
| int CHANGE_TYPE_UPDATED_ADDRESS_CHANGED = 2; |
| int CHANGE_TYPE_UPDATED_ADDRESS_UNCHANGED = 3; |
| |
| /** Listener for any changes to {@link AssociationInfo}-s. */ |
| interface OnChangeListener { |
| default void onAssociationChanged( |
| @ChangeType int changeType, AssociationInfo association) {} |
| |
| default void onAssociationAdded(AssociationInfo association) {} |
| |
| default void onAssociationRemoved(AssociationInfo association) {} |
| |
| default void onAssociationUpdated(AssociationInfo association, boolean addressChanged) {} |
| } |
| |
| /** |
| * @return all CDM associations. |
| */ |
| @NonNull |
| Collection<AssociationInfo> getAssociations(); |
| |
| /** |
| * @return a {@link List} of associations that belong to the user. |
| */ |
| @NonNull |
| List<AssociationInfo> getAssociationsForUser(@UserIdInt int userId); |
| |
| /** |
| * @return a {@link List} of association that belong to the package. |
| */ |
| @NonNull |
| List<AssociationInfo> getAssociationsForPackage( |
| @UserIdInt int userId, @NonNull String packageName); |
| |
| /** |
| * @return an association with the given address that belong to the given package if such an |
| * association exists, otherwise {@code null}. |
| */ |
| @Nullable |
| AssociationInfo getAssociationsForPackageWithAddress( |
| @UserIdInt int userId, @NonNull String packageName, @NonNull String macAddress); |
| |
| /** |
| * @return an association with the given id if such an association exists, otherwise |
| * {@code null}. |
| */ |
| @Nullable |
| AssociationInfo getAssociationById(int id); |
| |
| /** |
| * @return all associations with the given MAc address. |
| */ |
| @NonNull |
| List<AssociationInfo> getAssociationsByAddress(@NonNull String macAddress); |
| |
| /** Register a {@link OnChangeListener} */ |
| void registerListener(@NonNull OnChangeListener listener); |
| |
| /** Un-register a previously registered {@link OnChangeListener} */ |
| void unregisterListener(@NonNull OnChangeListener listener); |
| |
| /** @hide */ |
| static String changeTypeToString(@ChangeType int changeType) { |
| switch (changeType) { |
| case CHANGE_TYPE_ADDED: |
| return "ASSOCIATION_ADDED"; |
| |
| case CHANGE_TYPE_REMOVED: |
| return "ASSOCIATION_REMOVED"; |
| |
| case CHANGE_TYPE_UPDATED_ADDRESS_CHANGED: |
| return "ASSOCIATION_UPDATED"; |
| |
| case CHANGE_TYPE_UPDATED_ADDRESS_UNCHANGED: |
| return "ASSOCIATION_UPDATED_ADDRESS_UNCHANGED"; |
| |
| default: |
| return "Unknown (" + changeType + ")"; |
| } |
| } |
| } |