1 /*
2 * Copyright (C) 2013, Google Inc. and others
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Distribution License v. 1.0 which is available at
6 * https://www.eclipse.org/org/documents/edl-v10.php.
7 *
8 * SPDX-License-Identifier: BSD-3-Clause
9 */
10
11 package org.eclipse.jgit.internal.storage.pack;
12
13 /**
14 * A pack file extension.
15 */
16 public enum PackExt {
17 /** A pack file extension. */
18 PACK("pack"), //$NON-NLS-1$
19
20 /** A pack index file extension. */
21 INDEX("idx"), //$NON-NLS-1$
22
23 /** A keep pack file extension. */
24 KEEP("keep"), //$NON-NLS-1$
25
26 /** A pack bitmap index file extension. */
27 BITMAP_INDEX("bitmap"), //$NON-NLS-1$
28
29 /** A reftable file. */
30 REFTABLE("ref"); //$NON-NLS-1$
31
32 private final String ext;
33
34 private PackExt(String ext) {
35 this.ext = ext;
36 }
37
38 /**
39 * Get the file extension.
40 *
41 * @return the file extension.
42 */
43 public String getExtension() {
44 return ext;
45 }
46
47 /**
48 * Get the position of the extension in the enum declaration.
49 *
50 * @return the position of the extension in the enum declaration.
51 */
52 public int getPosition() {
53 return ordinal();
54 }
55
56 /**
57 * Get the bit mask of the extension e.g {@code 1 << getPosition()}.
58 *
59 * @return the bit mask of the extension e.g {@code 1 << getPosition()}.
60 */
61 public int getBit() {
62 return 1 << getPosition();
63 }
64
65 /** {@inheritDoc} */
66 @Override
67 public String toString() {
68 return String.format("PackExt[%s, bit=0x%s]", getExtension(), //$NON-NLS-1$
69 Integer.toHexString(getBit()));
70 }
71 }