Question

I am looking at the new functionality in Java7. I want to get a Collection objects returned given a specific input directory.

Currently I am using using (org.apache.commons.io)

Collection<File> files = FileUtils.listFiles(myInputFile, ...);

Instead I would like to do something like:

Collection<Path> paths = listPathsUsingJava7(myInputPath, ...);

However, I don’t see anything specific about doing it in the examples/docs out there. I see DirectoryStreams, which don’t seem to do recursion. I also see Vistors which make you take action on the current object instead of adding it to a Collection.

Does anyone have a Java7 example of doing this the correct way?

Thanks!

Answer 1

next JDK7 code will add all files in folder and subfolders to files.

    final List<Path> files = new ArrayList<>();
    Files.walkFileTree(Paths.get(myInputPath), new SimpleFileVisitor<Path>() {

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