Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Esmertec AG. |
| 3 | * Copyright (C) 2008 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | package com.google.android.mms.util; |
| 19 | |
| 20 | import android.app.ActivityManager; |
Artur Satayev | 9a5c310 | 2020-01-23 16:49:36 +0000 | [diff] [blame] | 21 | import android.compat.annotation.UnsupportedAppUsage; |
Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 22 | import android.content.ContentResolver; |
| 23 | import android.content.ContentValues; |
| 24 | import android.content.Context; |
| 25 | import android.database.Cursor; |
| 26 | import android.database.sqlite.SQLiteException; |
| 27 | import android.net.Uri; |
| 28 | import android.util.Log; |
| 29 | import android.widget.Toast; |
| 30 | |
Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 31 | public final class SqliteWrapper { |
| 32 | private static final String TAG = "SqliteWrapper"; |
| 33 | private static final String SQLITE_EXCEPTION_DETAIL_MESSAGE |
| 34 | = "unable to open database file"; |
| 35 | |
| 36 | private SqliteWrapper() { |
| 37 | // Forbidden being instantiated. |
| 38 | } |
| 39 | |
| 40 | // FIXME: It looks like outInfo.lowMemory does not work well as we expected. |
| 41 | // after run command: adb shell fillup -p 100, outInfo.lowMemory is still false. |
| 42 | private static boolean isLowMemory(Context context) { |
| 43 | if (null == context) { |
| 44 | return false; |
| 45 | } |
| 46 | |
| 47 | ActivityManager am = (ActivityManager) |
| 48 | context.getSystemService(Context.ACTIVITY_SERVICE); |
| 49 | ActivityManager.MemoryInfo outInfo = new ActivityManager.MemoryInfo(); |
| 50 | am.getMemoryInfo(outInfo); |
| 51 | |
| 52 | return outInfo.lowMemory; |
| 53 | } |
| 54 | |
| 55 | // FIXME: need to optimize this method. |
| 56 | private static boolean isLowMemory(SQLiteException e) { |
| 57 | return e.getMessage().equals(SQLITE_EXCEPTION_DETAIL_MESSAGE); |
| 58 | } |
| 59 | |
| 60 | @UnsupportedAppUsage |
| 61 | public static void checkSQLiteException(Context context, SQLiteException e) { |
| 62 | if (isLowMemory(e)) { |
Sarah Chin | d238b8a | 2020-03-12 22:39:31 +0000 | [diff] [blame] | 63 | Toast.makeText(context, com.android.internal.R.string.low_memory, |
| 64 | Toast.LENGTH_SHORT).show(); |
Amit Mahajan | 82f245f | 2019-09-10 13:19:05 -0700 | [diff] [blame] | 65 | } else { |
| 66 | throw e; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | @UnsupportedAppUsage |
| 71 | public static Cursor query(Context context, ContentResolver resolver, Uri uri, |
| 72 | String[] projection, String selection, String[] selectionArgs, String sortOrder) { |
| 73 | try { |
| 74 | return resolver.query(uri, projection, selection, selectionArgs, sortOrder); |
| 75 | } catch (SQLiteException e) { |
| 76 | Log.e(TAG, "Catch a SQLiteException when query: ", e); |
| 77 | checkSQLiteException(context, e); |
| 78 | return null; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | @UnsupportedAppUsage |
| 83 | public static boolean requery(Context context, Cursor cursor) { |
| 84 | try { |
| 85 | return cursor.requery(); |
| 86 | } catch (SQLiteException e) { |
| 87 | Log.e(TAG, "Catch a SQLiteException when requery: ", e); |
| 88 | checkSQLiteException(context, e); |
| 89 | return false; |
| 90 | } |
| 91 | } |
| 92 | @UnsupportedAppUsage |
| 93 | public static int update(Context context, ContentResolver resolver, Uri uri, |
| 94 | ContentValues values, String where, String[] selectionArgs) { |
| 95 | try { |
| 96 | return resolver.update(uri, values, where, selectionArgs); |
| 97 | } catch (SQLiteException e) { |
| 98 | Log.e(TAG, "Catch a SQLiteException when update: ", e); |
| 99 | checkSQLiteException(context, e); |
| 100 | return -1; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | @UnsupportedAppUsage |
| 105 | public static int delete(Context context, ContentResolver resolver, Uri uri, |
| 106 | String where, String[] selectionArgs) { |
| 107 | try { |
| 108 | return resolver.delete(uri, where, selectionArgs); |
| 109 | } catch (SQLiteException e) { |
| 110 | Log.e(TAG, "Catch a SQLiteException when delete: ", e); |
| 111 | checkSQLiteException(context, e); |
| 112 | return -1; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | @UnsupportedAppUsage |
| 117 | public static Uri insert(Context context, ContentResolver resolver, |
| 118 | Uri uri, ContentValues values) { |
| 119 | try { |
| 120 | return resolver.insert(uri, values); |
| 121 | } catch (SQLiteException e) { |
| 122 | Log.e(TAG, "Catch a SQLiteException when insert: ", e); |
| 123 | checkSQLiteException(context, e); |
| 124 | return null; |
| 125 | } |
| 126 | } |
| 127 | } |