Reinvented Files.createDirectories() wheel

ReinventTheCreateDirectoriesWheel.java

Files.walkFileTree(srcPath, new FileVisitor<Path>() {
    @Override
    public FileVisitResult preVisitDirectory(Path dir,
            BasicFileAttributes attrs) throws IOException {
        Path target = destPath.resolve(srcPath.relativize(dir));
        if (!Files.exists(target)) {
            Files.createDirectory(target);
        }
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult visitFile(Path file,
            BasicFileAttributes attrs) throws IOException {
        Files.copy(file, destPath.resolve(srcPath
                .relativize(file)), StandardCopyOption.COPY_ATTRIBUTES);
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult visitFileFailed(Path file,
            IOException exc) throws IOException {
        logger.warning(
                "Importing file " + srcPath.relativize(file) + " + failed: " + exc);
        return FileVisitResult.CONTINUE;
    }

    @Override
    public FileVisitResult postVisitDirectory(Path dir,
            IOException exc) throws IOException {
        return FileVisitResult.CONTINUE;
    }
});