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|---|---|---|---|
| 1 | /* ============================================================================ |
1 | /* ============================================================================ |
| 2 | # Create |
2 | # Create |
| 3 | # name : Andre Rikkert de Koe date: apr 2011 |
3 | # name : Andre Rikkert de Koe date: apr 2011 |
| 4 | # descr : filefind |
4 | # descr : filefind |
| 5 | # This is a demo of programming in the java language. |
5 | # This is a demo of programming in the java language. |
| 6 | # Its part of a project to implement a program to create a directory |
6 | # Its part of a project to implement a program to create a directory |
| 7 | # tree similar to the output of the Unix find program. |
7 | # tree similar to the output of the Unix find program. |
| 8 | # EUID : Any user who has read access to all the files being searched for. |
8 | # EUID : Any user who has read access to all the files being searched for. |
| 9 | # run : interactive |
9 | # run : interactive |
| 10 | # |
10 | # |
| 11 | # Changes |
11 | # Changes |
| 12 | # name : date: |
12 | # name : date: |
| 13 | # descr : short description |
13 | # descr : short description |
| 14 | # |
14 | # |
| 15 | # ========================================================================== */ |
15 | # ========================================================================== */ |
| 16 | 16 | ||
| 17 | import java.io.*; |
17 | import java.io.*; |
| 18 | import java.util.*; |
18 | import java.util.*; |
| 19 | 19 | ||
| 20 | public class filefind |
20 | public class filefind |
| 21 | { |
21 | { |
| 22 | protected File base; |
22 | protected File base; |
| 23 | protected PrintStream out; |
23 | protected PrintStream out; |
| 24 | 24 | ||
| 25 | static void Usage(String progname, String mesg) |
25 | static void Usage(String progname, String mesg) |
| 26 | { |
26 | { |
| 27 | System.out.println("Usage: " + progname + " directory"); |
27 | System.out.println("Usage: " + progname + " directory"); |
| 28 | System.out.println(mesg); |
28 | System.out.println(mesg); |
| 29 | } |
29 | } |
| 30 | 30 | ||
| 31 | static boolean issymlink(File file1) |
31 | static boolean issymlink(File file1) |
| 32 | { |
32 | { |
| 33 | boolean result; |
33 | boolean result; |
| 34 | try |
34 | try |
| 35 | { |
35 | { |
| 36 | result = !file1.getAbsolutePath().equals(file1.getCanonicalPath()); |
36 | result = !file1.getAbsolutePath().equals(file1.getCanonicalPath()); |
| 37 | } |
37 | } |
| 38 | catch (IOException ie) |
38 | catch (IOException ie) |
| 39 | { |
39 | { |
| 40 | System.err.println("Caught IOException: " + ie.getMessage()); |
40 | System.err.println("Caught IOException: " + ie.getMessage()); |
| 41 | result = false; |
41 | result = false; |
| 42 | } |
42 | } |
| 43 | return result; |
43 | return result; |
| 44 | } |
44 | } |
| 45 | 45 | ||
| 46 | public filefind(String filename) |
46 | public filefind(String filename) |
| 47 | { |
47 | { |
| 48 | base = new File(filename); |
48 | base = new File(filename); |
| 49 | } |
49 | } |
| 50 | 50 | ||
| 51 | static void start_traverse(File base, String basename) |
51 | static void start_traverse(File base) |
| 52 | { |
52 | { |
| - | 53 | try |
|
| - | 54 | { |
|
| 53 | System.out.println(basename); |
55 | System.out.println(base.getCanonicalPath()); |
| - | 56 | } |
|
| - | 57 | catch (IOException ie) |
|
| - | 58 | { |
|
| - | 59 | System.err.println("Caught IOException: " + ie.getMessage()); |
|
| - | 60 | } |
|
| 54 | traverse(base); |
61 | traverse(base); |
| 55 | } |
62 | } |
| 56 | 63 | ||
| 57 | static void traverse(File b) |
64 | static void traverse(File b) |
| 58 | { |
65 | { |
| 59 | File [] subs = b.listFiles(); |
66 | File [] subs = b.listFiles(); |
| 60 | for(int i = 0; i < subs.length; i++) |
67 | for(int i = 0; i < subs.length; i++) |
| 61 | { |
68 | { |
| 62 | if (subs[i].isDirectory() && !issymlink(subs[i])) |
69 | if (subs[i].isDirectory() && !issymlink(subs[i])) |
| 63 | { |
70 | { |
| 64 | System.out.println(subs[i]); |
71 | System.out.println(subs[i]); |
| 65 | traverse(subs[i]); |
72 | traverse(subs[i]); |
| 66 | } |
73 | } |
| 67 | else |
74 | else |
| 68 | { |
75 | { |
| 69 | System.out.println(subs[i]); |
76 | System.out.println(subs[i]); |
| 70 | } |
77 | } |
| 71 | } |
78 | } |
| 72 | } |
79 | } |
| 73 | 80 | ||
| 74 | /* ============================================================================ |
81 | /* ============================================================================ |
| 75 | # MAIN |
82 | # MAIN |
| 76 | # ========================================================================== */ |
83 | # ========================================================================== */ |
| 77 | 84 | ||
| 78 | public static void main(String [] args) |
85 | public static void main(String [] args) |
| 79 | { |
86 | { |
| 80 | String basename; |
87 | String basename; |
| 81 | String progname = "filefind"; |
88 | String progname = "filefind"; |
| 82 | if (args.length == 1) |
89 | if (args.length == 1) |
| 83 | { |
90 | { |
| 84 | basename = args[0]; |
91 | basename = args[0]; |
| 85 | File base = new File(basename); |
92 | File base = new File(basename); |
| 86 | if (base.isDirectory()) |
93 | if (base.isDirectory()) |
| 87 | { |
94 | { |
| 88 | start_traverse(base, basename); |
95 | start_traverse(base); |
| 89 | } |
96 | } |
| 90 | else |
97 | else |
| 91 | { |
98 | { |
| 92 | Usage(progname, "ERROR: No directory " + basename + " found"); |
99 | Usage(progname, "ERROR: No directory " + basename + " found"); |
| 93 | } |
100 | } |
| 94 | } |
101 | } |
| 95 | else |
102 | else |
| 96 | Usage(progname, "ERROR: 1 argument expected"); |
103 | Usage(progname, "ERROR: 1 argument expected"); |
| 97 | } |
104 | } |
| 98 | } |
105 | } |
| 99 | 106 | ||