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comparison src/com/trilead/ssh2/SFTPv3FileAttributes.java @ 0:0ce5cc452d02

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initial version
author Carl Byington <carl@five-ten-sg.com>
date Thu, 22 May 2014 10:41:19 -0700
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1
2 package com.trilead.ssh2;
3
4 /**
5 * A <code>SFTPv3FileAttributes</code> object represents detail information
6 * about a file on the server. Not all fields may/must be present.
7 *
8 * @author Christian Plattner, plattner@trilead.com
9 * @version $Id: SFTPv3FileAttributes.java,v 1.2 2008/04/01 12:38:09 cplattne Exp $
10 */
11
12 public class SFTPv3FileAttributes {
13 /**
14 * The SIZE attribute. <code>NULL</code> if not present.
15 */
16 public Long size = null;
17
18 /**
19 * The UID attribute. <code>NULL</code> if not present.
20 */
21 public Integer uid = null;
22
23 /**
24 * The GID attribute. <code>NULL</code> if not present.
25 */
26 public Integer gid = null;
27
28 /**
29 * The POSIX permissions. <code>NULL</code> if not present.
30 * <p>
31 * Here is a list:
32 * <p>
33 * <pre>Note: these numbers are all OCTAL.
34 *
35 * S_IFMT 0170000 bitmask for the file type bitfields
36 * S_IFSOCK 0140000 socket
37 * S_IFLNK 0120000 symbolic link
38 * S_IFREG 0100000 regular file
39 * S_IFBLK 0060000 block device
40 * S_IFDIR 0040000 directory
41 * S_IFCHR 0020000 character device
42 * S_IFIFO 0010000 fifo
43 * S_ISUID 0004000 set UID bit
44 * S_ISGID 0002000 set GID bit
45 * S_ISVTX 0001000 sticky bit
46 *
47 * S_IRWXU 00700 mask for file owner permissions
48 * S_IRUSR 00400 owner has read permission
49 * S_IWUSR 00200 owner has write permission
50 * S_IXUSR 00100 owner has execute permission
51 * S_IRWXG 00070 mask for group permissions
52 * S_IRGRP 00040 group has read permission
53 * S_IWGRP 00020 group has write permission
54 * S_IXGRP 00010 group has execute permission
55 * S_IRWXO 00007 mask for permissions for others (not in group)
56 * S_IROTH 00004 others have read permission
57 * S_IWOTH 00002 others have write permisson
58 * S_IXOTH 00001 others have execute permission
59 * </pre>
60 */
61 public Integer permissions = null;
62
63 /**
64 * The ATIME attribute. Represented as seconds from Jan 1, 1970 in UTC.
65 * <code>NULL</code> if not present.
66 */
67 public Long atime = null;
68
69 /**
70 * The MTIME attribute. Represented as seconds from Jan 1, 1970 in UTC.
71 * <code>NULL</code> if not present.
72 */
73 public Long mtime = null;
74
75 /**
76 * Checks if this entry is a directory.
77 *
78 * @return Returns true if permissions are available and they indicate
79 * that this entry represents a directory.
80 */
81 public boolean isDirectory() {
82 if (permissions == null)
83 return false;
84
85 return ((permissions.intValue() & 0040000) != 0);
86 }
87
88 /**
89 * Checks if this entry is a regular file.
90 *
91 * @return Returns true if permissions are available and they indicate
92 * that this entry represents a regular file.
93 */
94 public boolean isRegularFile() {
95 if (permissions == null)
96 return false;
97
98 return ((permissions.intValue() & 0100000) != 0);
99 }
100
101 /**
102 * Checks if this entry is a a symlink.
103 *
104 * @return Returns true if permissions are available and they indicate
105 * that this entry represents a symlink.
106 */
107 public boolean isSymlink() {
108 if (permissions == null)
109 return false;
110
111 return ((permissions.intValue() & 0120000) != 0);
112 }
113
114 /**
115 * Turn the POSIX permissions into a 7 digit octal representation.
116 * Note: the returned value is first masked with <code>0177777</code>.
117 *
118 * @return <code>NULL</code> if permissions are not available.
119 */
120 public String getOctalPermissions() {
121 if (permissions == null)
122 return null;
123
124 String res = Integer.toString(permissions.intValue() & 0177777, 8);
125 StringBuffer sb = new StringBuffer();
126 int leadingZeros = 7 - res.length();
127
128 while (leadingZeros > 0) {
129 sb.append('0');
130 leadingZeros--;
131 }
132
133 sb.append(res);
134 return sb.toString();
135 }
136 }