1 /* 2 * Copyright (C) 2023 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 17 package com.android.server.healthconnect.migration; 18 19 import android.health.connect.HealthConnectDataState; 20 import android.util.Slog; 21 22 import com.android.server.healthconnect.storage.TransactionManager; 23 import com.android.server.healthconnect.storage.datatypehelpers.MigrationEntityHelper; 24 25 /** 26 * Deletes temporary data after migration is complete. 27 * 28 * @hide 29 */ 30 public final class MigrationCleaner { 31 32 private static final String LOG_TAG = "MigrationCleaner"; 33 34 private final MigrationEntityHelper mMigrationEntityHelper; 35 private final TransactionManager mTransactionManager; 36 private final PriorityMigrationHelper mPriorityMigrationHelper; 37 MigrationCleaner( TransactionManager transactionManager, PriorityMigrationHelper priorityMigrationHelper, MigrationEntityHelper migrationEntityHelper)38 public MigrationCleaner( 39 TransactionManager transactionManager, 40 PriorityMigrationHelper priorityMigrationHelper, 41 MigrationEntityHelper migrationEntityHelper) { 42 mMigrationEntityHelper = migrationEntityHelper; 43 mTransactionManager = transactionManager; 44 mPriorityMigrationHelper = priorityMigrationHelper; 45 } 46 47 /** Attaches this migration cleaner to the provided {@link MigrationStateManager}. */ attachTo(MigrationStateManager migrationStateManager)48 public void attachTo(MigrationStateManager migrationStateManager) { 49 migrationStateManager.addStateChangedListener(this::onMigrationStateChanged); 50 } 51 onMigrationStateChanged(@ealthConnectDataState.DataMigrationState int state)52 private void onMigrationStateChanged(@HealthConnectDataState.DataMigrationState int state) { 53 if (state == HealthConnectDataState.MIGRATION_STATE_COMPLETE) { 54 clean(); 55 } 56 } 57 clean()58 private void clean() { 59 try { 60 mMigrationEntityHelper.clearData(mTransactionManager); 61 } catch (RuntimeException e) { 62 Slog.e(LOG_TAG, "Error clearing MigrationEntityHelper", e); 63 } 64 65 try { 66 mPriorityMigrationHelper.clearData(mTransactionManager); 67 } catch (RuntimeException e) { 68 Slog.e(LOG_TAG, "Error clearing PriorityMigrationHelper", e); 69 } 70 } 71 } 72