Merge "Add a wear backup helper" into main (b6a0804b) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/backup/SystemBackupAgent.java

+7 −1

Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ public class SystemBackupAgent extends BackupAgentHelper {
		private static final String SYSTEM_GENDER_HELPER = "system_gender";
		private static final String DISPLAY_HELPER = "display";
		private static final String INPUT_HELPER = "input";
		private static final String WEAR_BACKUP_HELPER = "wear";

		// These paths must match what the WallpaperManagerService uses. The leaf *_FILENAME
		// are also used in the full-backup file format, so must not change unless steps are
		@@ -113,7 +114,7 @@ public class SystemBackupAgent extends BackupAgentHelper {
		private static final Set<String> sEligibleHelpersForNonSystemUser =
		SetUtils.union(sEligibleHelpersForProfileUser,
		Sets.newArraySet(ACCOUNT_MANAGER_HELPER, USAGE_STATS_HELPER, PREFERRED_HELPER,
		SHORTCUT_MANAGER_HELPER, INPUT_HELPER));
		SHORTCUT_MANAGER_HELPER, INPUT_HELPER, WEAR_BACKUP_HELPER));

		private int mUserId = UserHandle.USER_SYSTEM;
		private boolean mIsProfileUser = false;
		@@ -153,6 +154,11 @@ public class SystemBackupAgent extends BackupAgentHelper {
		if (com.android.hardware.input.Flags.enableBackupAndRestoreForInputGestures()) {
		addHelperIfEligibleForUser(INPUT_HELPER, new InputBackupHelper(mUserId));
		}

		// Add Wear helper only if the device is a watch
		if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) {
		addHelperIfEligibleForUser(WEAR_BACKUP_HELPER, new WearBackupHelper());
		}
		}

		@Override

services/core/java/com/android/server/backup/WearBackupHelper.java

0 → 100644

+49 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2024 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
		*
		* https://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.backup;

		import android.annotation.Nullable;
		import android.app.backup.BlobBackupHelper;

		import com.android.server.LocalServices;

		/** A {@link android.app.backup.BlobBackupHelper} for Wear */
		public class WearBackupHelper extends BlobBackupHelper {

		private static final int BLOB_VERSION = 1;
		private static final String KEY_WEAR_BACKUP = "wear";
		@Nullable private final WearBackupInternal mWearBackupInternal;

		public WearBackupHelper() {
		super(BLOB_VERSION, KEY_WEAR_BACKUP);
		mWearBackupInternal = LocalServices.getService(WearBackupInternal.class);
		}

		@Override
		protected byte[] getBackupPayload(String key) {
		return KEY_WEAR_BACKUP.equals(key) && mWearBackupInternal != null
		? mWearBackupInternal.getBackupPayload(getLogger())
		: null;
		}

		@Override
		protected void applyRestoredPayload(String key, byte[] payload) {
		if (KEY_WEAR_BACKUP.equals(key) && mWearBackupInternal != null) {
		mWearBackupInternal.applyRestoredPayload(payload);
		}
		}
		}

services/core/java/com/android/server/backup/WearBackupInternal.java

0 → 100644

+32 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2024 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
		*
		* https://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.backup;

		import android.app.backup.BackupRestoreEventLogger;

		import com.android.internal.annotations.Keep;

		/** A local service internal for Wear OS handle backup/restore */
		@Keep
		public interface WearBackupInternal {

		/** Gets the backup payload */
		byte[] getBackupPayload(BackupRestoreEventLogger logger);

		/** Applies the restored payload */
		void applyRestoredPayload(byte[] payload);
		}