Examples with BasicFileAttributes java.nio.file.attribute.BasicFileAttributes used on opensource projects

Example 71 with BasicFileAttributes

use of java.nio.file.attribute.BasicFileAttributes in project elasticsearch by elastic.

the class TestingFs method wrap.

// wrap hadoop rawlocalfilesystem to behave less crazy
static RawLocalFileSystem wrap(final Path base) {
    final FileSystemProvider baseProvider = base.getFileSystem().provider();
    return new RawLocalFileSystem() {

        private org.apache.hadoop.fs.Path box(Path path) {
            return new org.apache.hadoop.fs.Path(path.toUri());
        }

        private Path unbox(org.apache.hadoop.fs.Path path) {
            return baseProvider.getPath(path.toUri());
        }

        @Override
        protected org.apache.hadoop.fs.Path getInitialWorkingDirectory() {
            return box(base);
        }

        @Override
        public void setPermission(org.apache.hadoop.fs.Path path, FsPermission permission) {
        // no execution, thank you very much!
        }

        // pretend we don't support symlinks (which causes hadoop to want to do crazy things),
        // returning the boolean does not seem to really help, link-related operations are still called.
        @Override
        public boolean supportsSymlinks() {
            return false;
        }

        @Override
        public FileStatus getFileLinkStatus(org.apache.hadoop.fs.Path path) throws IOException {
            return getFileStatus(path);
        }

        @Override
        public org.apache.hadoop.fs.Path getLinkTarget(org.apache.hadoop.fs.Path path) throws IOException {
            return path;
        }

        @Override
        public FileStatus getFileStatus(org.apache.hadoop.fs.Path path) throws IOException {
            BasicFileAttributes attributes;
            try {
                attributes = Files.readAttributes(unbox(path), BasicFileAttributes.class);
            } catch (NoSuchFileException e) {
                // unfortunately, specific exceptions are not guaranteed. don't wrap hadoop over a zip filesystem or something.
                FileNotFoundException fnfe = new FileNotFoundException("File " + path + " does not exist");
                fnfe.initCause(e);
                throw fnfe;
            }
            // we set similar values to raw local filesystem, except we are never a symlink
            long length = attributes.size();
            boolean isDir = attributes.isDirectory();
            int blockReplication = 1;
            long blockSize = getDefaultBlockSize(path);
            long modificationTime = attributes.creationTime().toMillis();
            return new FileStatus(length, isDir, blockReplication, blockSize, modificationTime, path);
        }
    };
}

Example 72 with BasicFileAttributes

use of java.nio.file.attribute.BasicFileAttributes in project elasticsearch by elastic.

the class FsBlobContainer method listBlobsByPrefix.

@Override
public Map<String, BlobMetaData> listBlobsByPrefix(String blobNamePrefix) throws IOException {
    // If we get duplicate files we should just take the last entry
    Map<String, BlobMetaData> builder = new HashMap<>();
    blobNamePrefix = blobNamePrefix == null ? "" : blobNamePrefix;
    try (DirectoryStream<Path> stream = Files.newDirectoryStream(path, blobNamePrefix + "*")) {
        for (Path file : stream) {
            final BasicFileAttributes attrs = Files.readAttributes(file, BasicFileAttributes.class);
            if (attrs.isRegularFile()) {
                builder.put(file.getFileName().toString(), new PlainBlobMetaData(file.getFileName().toString(), attrs.size()));
            }
        }
    }
    return unmodifiableMap(builder);
}

Example 73 with BasicFileAttributes

use of java.nio.file.attribute.BasicFileAttributes in project buck by facebook.

the class SocketLossKiller method arm.

/**
   * Start the service, recording the current socket file info.
   *
   * If the socket does not exist or can't be accessed, the kill task will be called.
   *
   * This is meant to be called after the server is started and socket created, such as in
   * {@code NailMain}. Repeated calls are no-ops.
   */
public synchronized void arm() {
    if (isArmed.getAndSet(true)) {
        // Already armed.
        return;
    }
    try {
        BasicFileAttributes socketFileAttributes = readFileAttributes(absolutePathToSocket);
        checkSocketTask = scheduledExecutorService.scheduleAtFixedRate(() -> checkSocket(socketFileAttributes), 0, 5000, TimeUnit.MILLISECONDS);
    } catch (IOException e) {
        LOG.error(e, "Failed to read socket when arming SocketLossKiller.");
        cancelAndKill();
        return;
    }
}

Example 74 with BasicFileAttributes

use of java.nio.file.attribute.BasicFileAttributes in project buck by facebook.

the class DirectoryCleaner method computeDirSizeBytesRecursively.

private static long computeDirSizeBytesRecursively(Path directoryPath) throws IOException {
    final AtomicLong totalSizeBytes = new AtomicLong(0);
    Files.walkFileTree(directoryPath, new SimpleFileVisitor<Path>() {

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

Example 75 with BasicFileAttributes

use of java.nio.file.attribute.BasicFileAttributes in project buck by facebook.

the class ProjectWorkspace method assertPathsEqual.

/**
   * For every file in the template directory whose name ends in {@code .expected}, checks that an
   * equivalent file has been written in the same place under the destination directory.
   *
   * @param templateSubdirectory An optional subdirectory to check. Only files in this directory
   *                     will be compared.
   */
private void assertPathsEqual(final Path templateSubdirectory, final Path destinationSubdirectory) throws IOException {
    SimpleFileVisitor<Path> copyDirVisitor = new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            String fileName = file.getFileName().toString();
            if (fileName.endsWith(EXPECTED_SUFFIX)) {
                // Get File for the file that should be written, but without the ".expected" suffix.
                Path generatedFileWithSuffix = destinationSubdirectory.resolve(templateSubdirectory.relativize(file));
                Path directory = generatedFileWithSuffix.getParent();
                Path observedFile = directory.resolve(MorePaths.getNameWithoutExtension(file));
                assertFilesEqual(file, observedFile);
            }
            return FileVisitResult.CONTINUE;
        }
    };
    Files.walkFileTree(templateSubdirectory, copyDirVisitor);
}