Examples with FileVisitOption java.nio.file.FileVisitOption used on opensource projects

Example 21 with FileVisitOption

use of java.nio.file.FileVisitOption in project ceylon-compiler by ceylon.

the class JavacPathFileManager method list.

private void list(Path path, String packageName, final Set<Kind> kinds, boolean recurse, final ListBuffer<JavaFileObject> results) throws IOException {
    if (!Files.exists(path))
        return;
    final Path pathDir;
    if (isDirectory(path))
        pathDir = path;
    else {
        FileSystem fs = getFileSystem(path);
        if (fs == null)
            return;
        pathDir = fs.getRootDirectories().iterator().next();
    }
    String sep = path.getFileSystem().getSeparator();
    Path packageDir = packageName.isEmpty() ? pathDir : pathDir.resolve(packageName.replace(".", sep));
    if (!Files.exists(packageDir))
        return;
    /* Alternate impl of list, superceded by use of Files.walkFileTree */
    // Deque<Path> queue = new LinkedList<Path>();
    // queue.add(packageDir);
    // 
    // Path dir;
    // while ((dir = queue.poll()) != null) {
    // DirectoryStream<Path> ds = dir.newDirectoryStream();
    // try {
    // for (Path p: ds) {
    // String name = p.getFileName().toString();
    // if (isDirectory(p)) {
    // if (recurse && SourceVersion.isIdentifier(name)) {
    // queue.add(p);
    // }
    // } else {
    // if (kinds.contains(getKind(name))) {
    // JavaFileObject fe =
    // PathFileObject.createDirectoryPathFileObject(this, p, pathDir);
    // results.append(fe);
    // }
    // }
    // }
    // } finally {
    // ds.close();
    // }
    // }
    int maxDepth = (recurse ? Integer.MAX_VALUE : 1);
    Set<FileVisitOption> opts = EnumSet.of(FOLLOW_LINKS);
    Files.walkFileTree(packageDir, opts, maxDepth, new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
            Path name = dir.getFileName();
            if (// JSR 292?
            name == null || SourceVersion.isIdentifier(name.toString()))
                return FileVisitResult.CONTINUE;
            else
                return FileVisitResult.SKIP_SUBTREE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
            if (attrs.isRegularFile() && kinds.contains(getKind(file.getFileName().toString()))) {
                JavaFileObject fe = PathFileObject.createDirectoryPathFileObject(JavacPathFileManager.this, file, pathDir);
                results.append(fe);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}