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/*-
* Copyright (C) 2006 Erik Larsson
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
package org.catacombae.rarx;
import java.io.*;
import java.util.regex.Pattern;
public class ListRecursive {
public static class RegexpFileFilter implements FileFilter {
private String pattern;
public RegexpFileFilter(String pattern) {
this.pattern = pattern;
}
public boolean accept(File f) {
return Pattern.matches(pattern, f.getName());
}
}
public static void main(String[] args) throws IOException {
File rootDir = null;
String pattern = null;
File outFile = null;
System.out.println("args.length=" + args.length);
if(args.length > 2) {
rootDir = new File(args[0]);
pattern = args[1];
outFile = new File(args[2]);
System.out.println("Writing to file " + outFile.getCanonicalPath());
}
else if(args.length > 1) {
rootDir = new File(args[0]);
pattern = args[1];
}
else if(args.length > 0)
pattern = args[0];
else {
System.out.println("Could not parse arguments.");
return;
}
if(rootDir == null)
rootDir = new File(System.getProperty("user.dir"));
FileFilter fnf;
if(pattern == null)
fnf = null;
else
fnf = new RegexpFileFilter(pattern);
if(outFile == null)
listRecursive(rootDir, fnf, System.out);
else
listRecursive(rootDir, fnf, new PrintStream(new FileOutputStream(outFile), false, "UTF-8"));
}
public static void listRecursive(File rootDir, FileFilter fnf, PrintStream ps) {
File[] allChildren = rootDir.listFiles();
File[] matchingChildren;
if(fnf == null)
matchingChildren = allChildren;
else
matchingChildren = rootDir.listFiles(fnf);
if(matchingChildren != null) {
for(File child : matchingChildren)
ps.println(child);
}
if(allChildren != null) {
for(File child : allChildren)
listRecursive(child, fnf, ps);
}
}
}
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