WebSVN – svn.Prod repos – Diff – /filefind/java/filefind.java


/* ============================================================================
# Create
# name  : Andre Rikkert de Koe          date:   Apr 2011
# descr : filefind
#         This is a demo of programming in the java language.
#         Its part of a project to implement a program to create a directory
#         tree similar to the output of the Unix find program.
# EUID  : Any user who has read access to all the files being searched for.
# run   : interactive
#
# Changes
# name  :                               date:
# descr : short description
#
# ========================================================================== */
 
import java.io.*;
import java.util.*;
 
public class filefind
{
        protected File base;
        protected PrintStream out;
 
        static void Usage(String progname, String mesg)
        {
                System.out.println("Usage: " + progname + " directory");
                System.out.println(mesg);
        }
       
        static boolean issymlink(File file1)
        {
                boolean result;
                try
                {
                        result = !file1.getAbsolutePath().equals(file1.getCanonicalPath());
                }
                catch (IOException ie)
                {
                        System.err.println("Caught IOException: " + ie.getMessage());
                        result = false;
                }
                return result;
        }
 
        public filefind(String filename)
        {
                base = new File(filename);
        }
 
        static void start_traverse(File base)
        {
                try
                {
                        System.out.println(base.getCanonicalPath());
                }
                catch (IOException ie)
                {
                        System.err.println("Caught IOException: " + ie.getMessage());
                }
                traverse(base);
        }
 
        static void traverse(File b)
        {
                File [] subs = b.listFiles();
                for(int i = 0; i < subs.length; i++)
                {
                        if (subs[i].isDirectory() && !issymlink(subs[i]))
                        {
                                System.out.println(subs[i]);
                                traverse(subs[i]);
                        }
                        else
                        {
                                System.out.println(subs[i]);
                        }
                }
        }
 
/* ============================================================================
# MAIN
# ========================================================================== */
 
        public static void main(String [] args)
        {
                String basename;
                String progname = "filefind";
                if (args.length == 1)
                {
                        basename = args[0];
                        File base = new File(basename);
                        if (base.isDirectory())
                        {
                                start_traverse(base);
                        }
                        else
                        {
                                Usage(progname, "ERROR: Not a directory : " + basename);
                        }
                }
                else
                Usage(progname, "ERROR: 1 argument expected");
        }
}
 

Rev 37	Rev 43
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)	51	static void start_traverse(File base)
52	{	52	{
53	try	53	try
54	{	54	{
55	System.out.println(base.getCanonicalPath());	55	System.out.println(base.getCanonicalPath());
56	}	56	}
57	catch (IOException ie)	57	catch (IOException ie)
58	{	58	{
59	System.err.println("Caught IOException: " + ie.getMessage());	59	System.err.println("Caught IOException: " + ie.getMessage());
60	}	60	}
61	traverse(base);	61	traverse(base);
62	}	62	}
63		63
64	static void traverse(File b)	64	static void traverse(File b)
65	{	65	{
66	File [] subs = b.listFiles();	66	File [] subs = b.listFiles();
67	for(int i = 0; i < subs.length; i++)	67	for(int i = 0; i < subs.length; i++)
68	{	68	{
69	if (subs[i].isDirectory() && !issymlink(subs[i]))	69	if (subs[i].isDirectory() && !issymlink(subs[i]))
70	{	70	{
71	System.out.println(subs[i]);	71	System.out.println(subs[i]);
72	traverse(subs[i]);	72	traverse(subs[i]);
73	}	73	}
74	else	74	else
75	{	75	{
76	System.out.println(subs[i]);	76	System.out.println(subs[i]);
77	}	77	}
78	}	78	}
79	}	79	}
80		80
81	/* ============================================================================	81	/* ============================================================================
82	# MAIN	82	# MAIN
83	# ========================================================================== */	83	# ========================================================================== */
84		84
85	public static void main(String [] args)	85	public static void main(String [] args)
86	{	86	{
87	String basename;	87	String basename;
88	String progname = "filefind";	88	String progname = "filefind";
89	if (args.length == 1)	89	if (args.length == 1)
90	{	90	{
91	basename = args[0];	91	basename = args[0];
92	File base = new File(basename);	92	File base = new File(basename);
93	if (base.isDirectory())	93	if (base.isDirectory())
94	{	94	{
95	start_traverse(base);	95	start_traverse(base);
96	}	96	}
97	else	97	else
98	{	98	{
99	Usage(progname, "ERROR: Not a directory : " + basename);	99	Usage(progname, "ERROR: Not a directory : " + basename);
100	}	100	}
101	}	101	}
102	else	102	else
103	Usage(progname, "ERROR: 1 argument expected");	103	Usage(progname, "ERROR: 1 argument expected");
104	}	104	}
105	}	105	}
106		106

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(root)/filefind/java/filefind.java – Rev 37 → 43