CleanService.java

package com.cadrlife.devsearch.agent.service;

import com.google.common.base.Throwables;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;

public class CleanService {
    private static final Logger LOG = LoggerFactory.getLogger(CleanService.class);

    public void clean(Path path) {
        try {
            LOG.debug("Clean: recursively deleting '{}'", path);
            if (!path.toFile().exists()) {
                LOG.debug("Clean: Path does not exist. Done.", path);
                return;
            }
            Files.walkFileTree(path, new SimpleFileVisitor<Path>() {

                @Override
                public FileVisitResult visitFile(Path file,
                                                 BasicFileAttributes attrs) throws IOException {
                	deleteFile(file);
                    return FileVisitResult.CONTINUE;
                }


                @Override
                public FileVisitResult postVisitDirectory(Path dir,
                                                          IOException exc) throws IOException {

                    if (exc == null) {
                        Files.delete(dir);
                        return FileVisitResult.CONTINUE;
                    } else {
                        throw exc;
                    }
                }

            });
        } catch (IOException e) {
            Throwables.propagate(e);
        }
    }
    
    private void deleteFile(Path file) throws IOException {
		try {
    		Files.setAttribute(file, "dos:readonly", false);
    	} catch (IllegalArgumentException e) {
    		e.printStackTrace();
    	}
        Files.delete(file);
	}
}