Java Delete File on Exit deleteOnExit(File dir)

Description

delete On Exit

License

Open Source License

Declaration

public static void deleteOnExit(File dir) 

Method Source Code

//package com.java2s;
import java.io.File;

import java.util.ArrayList;
import java.util.Collection;

public class Main {
    static final Collection<File> temporary = new ArrayList<File>();

    public static void deleteOnExit(File dir) {
        synchronized (temporary) {
            if (temporary.isEmpty()) {
                Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
                    public void run() {
                        synchronized (temporary) {
                            for (File dir : temporary) {
                                deleteFileOrDir(dir, 256);
                            }//ww  w.  ja  v  a  2s.c o m
                        }
                    }
                }, "Temporary Directory Cleanup"));
            }
            temporary.add(dir);
        }
    }

    static void deleteFileOrDir(File dir, int max) {
        File[] listFiles = dir.listFiles();
        if (listFiles != null && max > 0) {
            for (File file : listFiles) {
                deleteFileOrDir(file, max - 1);
            }
        }
        dir.delete();
    }
}

Related

1. deleteOnExit(File file)
2. deleteOnExit(File file)
3. deleteOnExit(final File file)
4. deleteOnExit(final File file)