1 /* 2 * Copyright 2018, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.managedprovisioning.task; 17 18 import android.content.Context; 19 import android.os.FileUtils; 20 21 import com.android.managedprovisioning.common.ProvisionLogger; 22 import com.android.managedprovisioning.task.nonrequiredapps.SystemAppsSnapshot; 23 24 import java.io.File; 25 import java.util.regex.Matcher; 26 import java.util.regex.Pattern; 27 28 public class MigrateSystemAppsSnapshotTask extends AbstractProvisioningTask { 29 private static final Pattern XML_FILE_NAME_PATTERN = Pattern.compile("(\\d+)\\.xml"); 30 MigrateSystemAppsSnapshotTask(Context context, Callback callback)31 public MigrateSystemAppsSnapshotTask(Context context, Callback callback) { 32 super(context, null, callback); 33 } 34 35 @Override run(int userId)36 public void run(int userId) { 37 migrateIfNecessary(); 38 } 39 40 /** 41 * Snapshot files are renamed from {user_id}.xml to {user_serial_number}.xml and moved 42 * to the new folder. 43 */ migrateIfNecessary()44 private void migrateIfNecessary() { 45 File legacyFolder = SystemAppsSnapshot.getLegacyFolder(mContext); 46 if (!legacyFolder.exists()) { 47 return; 48 } 49 ProvisionLogger.logi("Found legacy system_apps folder, kick start migration."); 50 SystemAppsSnapshot.getFolder(mContext).mkdirs(); 51 File[] files = legacyFolder.listFiles(); 52 for (File file : files) { 53 String fileName = file.getName(); 54 Matcher matcher = XML_FILE_NAME_PATTERN.matcher(fileName); 55 if (!matcher.find()) { 56 ProvisionLogger.logw("Found invalid file during migration: " + fileName); 57 continue; 58 } 59 60 int userId = Integer.parseInt(matcher.group(1)); 61 File destination; 62 try { 63 destination = SystemAppsSnapshot.getSystemAppsFile(mContext, userId); 64 } catch (IllegalArgumentException ex) { 65 ProvisionLogger.logi( 66 "user " + userId + " no longer exists, skip migrating its snapshot file"); 67 continue; 68 } 69 ProvisionLogger.logi( 70 "Moving " + file.getAbsolutePath() + " to " + destination.getAbsolutePath()); 71 boolean success = file.renameTo(destination); 72 if (!success) { 73 ProvisionLogger.loge("Failed to migrate " + file.getAbsolutePath()); 74 } 75 } 76 FileUtils.deleteContentsAndDir(legacyFolder); 77 } 78 79 @Override getStatusMsgId()80 public int getStatusMsgId() { 81 // OTA only task, not used. 82 return 0; 83 } 84 } 85