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, String basename)
        {
                System.out.println(basename);
                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, basename);
                        }
                        else
                        {
                                Usage(progname, "ERROR: No directory " + basename + " found");
                        }
                }
                else
                Usage(progname, "ERROR: 1 argument expected");
        }
}
 

Rev 6	Rev 10
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 /implements Runnable /	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	/**	-
46	* Create a filefind object for the given string, with	-
47	* a print indentation given.	-
48	*/	45
49	public filefind(String filename)	46	public filefind(String filename)
50	{	47	{
51	base = new File(filename);	48	base = new File(filename);
52	}	49	}
53		50
54	public void start_traverse(String directory)	51	static void start_traverse(File base, String basename)
55	{	52	{
56	System.out.println(directory);	53	System.out.println(basename);
57	traverse(base);	54	traverse(base);
58	}	55	}
59		56
60	static void traverse(File b)	57	static void traverse(File b)
61	{	58	{
62	String curdir;	-
63	curdir = b.getAbsolutePath();	-
64	System.setProperty("user.dir",curdir);	-
65		-
66	File [] subs = b.listFiles();	59	File [] subs = b.listFiles();
67	for(int i = 0; i < subs.length; i++)	60	for(int i = 0; i < subs.length; i++)
68	{	61	{
69	//File f2 = new File(subs[i]);	-
70	if (subs[i].isDirectory() && !issymlink(subs[i]))	62	if (subs[i].isDirectory() && !issymlink(subs[i]))
71	{	63	{
72	System.out.println(subs[i]);	64	System.out.println(subs[i]);
73	traverse(subs[i]);	65	traverse(subs[i]);
74	}	66	}
75	else	67	else
76	{	68	{
77	System.out.println(subs[i]);	69	System.out.println(subs[i]);
78	}	70	}
79	}	71	}
80	System.setProperty("user.dir",curdir);	-
81	}	72	}
82		73
83	/* ============================================================================	74	/* ============================================================================
84	# MAIN	75	# MAIN
85	# ========================================================================== */	76	# ========================================================================== */
86		77
87	public static void main(String [] args)	78	public static void main(String [] args)
88	{	79	{
89	String basename;	80	String basename;
90	String progname = "filefind";	81	String progname = "filefind";
91	if (args.length == 1)	82	if (args.length == 1)
92	{	83	{
93	basename = args[0];	84	basename = args[0];
94	File base = new File(basename);	85	File base = new File(basename);
95	if (base.isDirectory())	86	if (base.isDirectory())
96	{	87	{
97	filefind walker = new filefind(basename);	-
98	//walker.setOutput(System.out);	-
99	walker.start_traverse(basename);	88	start_traverse(base, basename);
100	}	89	}
101	else	90	else
102	{	91	{
103	Usage(progname, "ERROR: No directory " + basename + " found");	92	Usage(progname, "ERROR: No directory " + basename + " found");
104	}	93	}
105	}	94	}
106	else	95	else
107	Usage(progname, "ERROR: 1 argument expected");	96	Usage(progname, "ERROR: 1 argument expected");
108	}	97	}
109	}	98	}
110		99

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