The Tor Browser / file comparison
comparison: mobile/android/base/background/db/CursorDumper.java
mobile/android/base/background/db/CursorDumper.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:94fbcb4d2055 |
|---|---|
| 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 | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 package org.mozilla.gecko.background.db; | |
| 6 | |
| 7 import android.database.Cursor; | |
| 8 | |
| 9 /** | |
| 10 * A utility for dumping a cursor the debug log. | |
| 11 * <p> | |
| 12 * <b>For debugging only!</p> | |
| 13 */ | |
| 14 public class CursorDumper { | |
| 15 protected static String fixedWidth(int width, String s) { | |
| 16 if (s == null) { | |
| 17 return spaces(width); | |
| 18 } | |
| 19 int length = s.length(); | |
| 20 if (width == length) { | |
| 21 return s; | |
| 22 } | |
| 23 if (width > length) { | |
| 24 return s + spaces(width - length); | |
| 25 } | |
| 26 return s.substring(0, width); | |
| 27 } | |
| 28 | |
| 29 protected static String spaces(int i) { | |
| 30 return " ".substring(0, i); | |
| 31 } | |
| 32 | |
| 33 protected static String dashes(int i) { | |
| 34 return "-------------------------------------".substring(0, i); | |
| 35 } | |
| 36 | |
| 37 /** | |
| 38 * Dump a cursor to the debug log, ignoring any log level settings. | |
| 39 * <p> | |
| 40 * The position in the cursor is maintained. Caller is responsible for opening | |
| 41 * and closing cursor. | |
| 42 * | |
| 43 * @param cursor | |
| 44 * to dump. | |
| 45 */ | |
| 46 public static void dumpCursor(Cursor cursor) { | |
| 47 dumpCursor(cursor, 18, "records"); | |
| 48 } | |
| 49 | |
| 50 /** | |
| 51 * Dump a cursor to the debug log, ignoring any log level settings. | |
| 52 * <p> | |
| 53 * The position in the cursor is maintained. Caller is responsible for opening | |
| 54 * and closing cursor. | |
| 55 * | |
| 56 * @param cursor | |
| 57 * to dump. | |
| 58 * @param columnWidth | |
| 59 * how many characters per cursor column. | |
| 60 * @param tags | |
| 61 * a descriptor, printed like "(10 tags)", in the header row. | |
| 62 */ | |
| 63 protected static void dumpCursor(Cursor cursor, int columnWidth, String tags) { | |
| 64 int originalPosition = cursor.getPosition(); | |
| 65 try { | |
| 66 String[] columnNames = cursor.getColumnNames(); | |
| 67 int columnCount = cursor.getColumnCount(); | |
| 68 | |
| 69 for (int i = 0; i < columnCount; ++i) { | |
| 70 System.out.print(fixedWidth(columnWidth, columnNames[i]) + " | "); | |
| 71 } | |
| 72 System.out.println("(" + cursor.getCount() + " " + tags + ")"); | |
| 73 for (int i = 0; i < columnCount; ++i) { | |
| 74 System.out.print(dashes(columnWidth) + " | "); | |
| 75 } | |
| 76 System.out.println(""); | |
| 77 if (!cursor.moveToFirst()) { | |
| 78 System.out.println("EMPTY"); | |
| 79 return; | |
| 80 } | |
| 81 | |
| 82 cursor.moveToFirst(); | |
| 83 while (!cursor.isAfterLast()) { | |
| 84 for (int i = 0; i < columnCount; ++i) { | |
| 85 System.out.print(fixedWidth(columnWidth, cursor.getString(i)) + " | "); | |
| 86 } | |
| 87 System.out.println(""); | |
| 88 cursor.moveToNext(); | |
| 89 } | |
| 90 for (int i = 0; i < columnCount-1; ++i) { | |
| 91 System.out.print(dashes(columnWidth + 3)); | |
| 92 } | |
| 93 System.out.print(dashes(columnWidth + 3 - 1)); | |
| 94 System.out.println(""); | |
| 95 } finally { | |
| 96 cursor.moveToPosition(originalPosition); | |
| 97 } | |
| 98 } | |
| 99 } |
