The Tor Browser / file comparison
comparison: mobile/android/base/db/DBUtils.java
mobile/android/base/db/DBUtils.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:9638eeaf30c6 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 package org.mozilla.gecko.db; | |
| 6 | |
| 7 import org.mozilla.gecko.GeckoAppShell; | |
| 8 | |
| 9 import android.content.ContentValues; | |
| 10 import android.database.sqlite.SQLiteOpenHelper; | |
| 11 import android.text.TextUtils; | |
| 12 import android.util.Log; | |
| 13 | |
| 14 public class DBUtils { | |
| 15 private static final String LOGTAG = "GeckoDBUtils"; | |
| 16 | |
| 17 public static final String qualifyColumn(String table, String column) { | |
| 18 return table + "." + column; | |
| 19 } | |
| 20 | |
| 21 // This is available in Android >= 11. Implemented locally to be | |
| 22 // compatible with older versions. | |
| 23 public static String concatenateWhere(String a, String b) { | |
| 24 if (TextUtils.isEmpty(a)) { | |
| 25 return b; | |
| 26 } | |
| 27 | |
| 28 if (TextUtils.isEmpty(b)) { | |
| 29 return a; | |
| 30 } | |
| 31 | |
| 32 return "(" + a + ") AND (" + b + ")"; | |
| 33 } | |
| 34 | |
| 35 // This is available in Android >= 11. Implemented locally to be | |
| 36 // compatible with older versions. | |
| 37 public static String[] appendSelectionArgs(String[] originalValues, String[] newValues) { | |
| 38 if (originalValues == null || originalValues.length == 0) { | |
| 39 return newValues; | |
| 40 } | |
| 41 | |
| 42 if (newValues == null || newValues.length == 0) { | |
| 43 return originalValues; | |
| 44 } | |
| 45 | |
| 46 String[] result = new String[originalValues.length + newValues.length]; | |
| 47 System.arraycopy(originalValues, 0, result, 0, originalValues.length); | |
| 48 System.arraycopy(newValues, 0, result, originalValues.length, newValues.length); | |
| 49 | |
| 50 return result; | |
| 51 } | |
| 52 | |
| 53 public static void replaceKey(ContentValues aValues, String aOriginalKey, | |
| 54 String aNewKey, String aDefault) { | |
| 55 String value = aDefault; | |
| 56 if (aOriginalKey != null && aValues.containsKey(aOriginalKey)) { | |
| 57 value = aValues.get(aOriginalKey).toString(); | |
| 58 aValues.remove(aOriginalKey); | |
| 59 } | |
| 60 | |
| 61 if (!aValues.containsKey(aNewKey)) { | |
| 62 aValues.put(aNewKey, value); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 public static void ensureDatabaseIsNotLocked(SQLiteOpenHelper dbHelper, String databasePath) { | |
| 67 for (int retries = 0; retries < 5; retries++) { | |
| 68 try { | |
| 69 // Try a simple test and exit the loop | |
| 70 dbHelper.getWritableDatabase(); | |
| 71 return; | |
| 72 } catch (Exception e) { | |
| 73 // Things could get very bad if we don't find a way to unlock the DB | |
| 74 Log.d(LOGTAG, "Database is locked, trying to kill any zombie processes: " + databasePath); | |
| 75 GeckoAppShell.killAnyZombies(); | |
| 76 try { | |
| 77 Thread.sleep(retries * 100); | |
| 78 } catch (InterruptedException ie) { } | |
| 79 } | |
| 80 } | |
| 81 Log.d(LOGTAG, "Failed to unlock database"); | |
| 82 GeckoAppShell.listOfOpenFiles(); | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 * Verifies that 0-byte arrays aren't added as favicon or thumbnail data. | |
| 87 * @param values ContentValues of query | |
| 88 * @param columnName Name of data column to verify | |
| 89 */ | |
| 90 public static void stripEmptyByteArray(ContentValues values, String columnName) { | |
| 91 if (values.containsKey(columnName)) { | |
| 92 byte[] data = values.getAsByteArray(columnName); | |
| 93 if (data == null || data.length == 0) { | |
| 94 Log.w(LOGTAG, "Tried to insert an empty or non-byte-array image. Ignoring."); | |
| 95 values.putNull(columnName); | |
| 96 } | |
| 97 } | |
| 98 } | |
| 99 } |
