Java 8 DirectoryStream and glob for subdirectories

Asked Jul 06 '16 at 17:41

Active Jul 06 '16 at 17:51

Viewed 357 times

Hello I have the following directory structure:

/root
   file1.js
   /folder1
      file2.js

I'm using the following code:

Path dir = Paths.get("root");
try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir,"**.js")) {
    for (Path file: stream) {
        System.out.println(file.getFileName());
    }
} catch (IOException | DirectoryIteratorException x) {
    System.err.println(x);
}

I want to return all .js files in root and folder1.

If I use *.js returns file1.js , but if I use **.js returns the same file1.js.

Why is not returning the folder1/file2.js ?

According to official documentation: https://docs.oracle.com/javase/tutorial/essential/io/fileOps.html#glob

Two asterisks, **, works like * but crosses directory boundaries. This syntax is generally used for matching complete paths

Thanks

edited Jul 06 '16 at 17:51

asked Jul 06 '16 at 17:41

Doua Beri

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I don't see the documentation you cite [here](https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#newDirectoryStream-java.nio.file.Path-java.lang.String-) (Oracle java 8 documentation) – lucasvw Jul 06 '16 at 17:49
3

I don't think `DirectoryStream` recurs through directories. Do that yourself or use `Files#walkFileTree`. – Sotirios Delimanolis Jul 06 '16 at 17:51
@lucasvw I've updated the post with documentation link – Doua Beri Jul 06 '16 at 17:51
1

http://stackoverflow.com/questions/2534632/list-all-files-from-a-directory-recursively-with-java – Sotirios Delimanolis Jul 06 '16 at 17:58

Java 8 DirectoryStream and glob for subdirectories

0 Answers0