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

Example 11 with LinkOption

use of java.nio.file.LinkOption in project structr by structr.

the class StructrSSHFileSystem method provider.

@Override
public FileSystemProvider provider() {
    logger.info("x");
    return new FileSystemProvider() {

        @Override
        public OutputStream newOutputStream(Path path, OpenOption... options) throws IOException {
            logger.info("x");
            OutputStream os = null;
            File actualFile = (File) ((StructrSSHFile) path).getActualFile();
            try (final Tx tx = StructrApp.getInstance(securityContext).tx()) {
                if (actualFile == null) {
                    actualFile = (File) create(path);
                }
                if (actualFile != null) {
                    os = ((File) actualFile).getOutputStream();
                }
                tx.success();
            } catch (FrameworkException fex) {
                logger.warn("", fex);
                throw new IOException(fex);
            }
            return os;
        }

        @Override
        public InputStream newInputStream(Path path, OpenOption... options) throws IOException {
            // Remote file => file node in Structr
            logger.info("x");
            InputStream inputStream = null;
            try (final Tx tx = StructrApp.getInstance(securityContext).tx()) {
                final File fileNode = (File) ((StructrSSHFile) path).getActualFile();
                inputStream = fileNode.getInputStream();
                tx.success();
            } catch (FrameworkException fex) {
                logger.warn("", fex);
                throw new IOException(fex);
            }
            return inputStream;
        }

        @Override
        public String getScheme() {
            logger.info("Method not implemented yet");
            return null;
        }

        @Override
        public FileSystem newFileSystem(URI uri, Map<String, ?> env) throws IOException {
            logger.info("Method not implemented yet");
            return null;
        }

        @Override
        public FileSystem getFileSystem(URI uri) {
            logger.info("Method not implemented yet");
            return null;
        }

        @Override
        public Path getPath(URI uri) {
            logger.info("Method not implemented yet");
            return null;
        }

        @Override
        public SeekableByteChannel newByteChannel(Path path, Set<? extends OpenOption> options, FileAttribute<?>... attrs) throws IOException {
            logger.info("x");
            SeekableByteChannel channel = null;
            final File fileNode = (File) ((StructrSSHFile) path).getActualFile();
            if (fileNode != null) {
                try (Tx tx = StructrApp.getInstance(securityContext).tx()) {
                    final Path filePath = fileNode.getFileOnDisk().toPath();
                    channel = Files.newByteChannel(filePath);
                    tx.success();
                } catch (FrameworkException fex) {
                    logger.error("", fex);
                    throw new IOException(fex);
                }
            }
            return channel;
        }

        @Override
        public DirectoryStream<Path> newDirectoryStream(Path dir, DirectoryStream.Filter<? super Path> filter) throws IOException {
            logger.info("x");
            return new DirectoryStream() {

                boolean closed = false;

                @Override
                public Iterator iterator() {
                    if (!closed) {
                        final App app = StructrApp.getInstance(securityContext);
                        final List<StructrSSHFile> files = new LinkedList<>();
                        final StructrSSHFile thisDir = (StructrSSHFile) dir;
                        try (final Tx tx = app.tx()) {
                            for (final Folder child : thisDir.getFolders()) {
                                files.add(new StructrSSHFile(thisDir, child.getName(), child));
                            }
                            for (final File child : thisDir.getFiles()) {
                                files.add(new StructrSSHFile(thisDir, child.getName(), child));
                            }
                            tx.success();
                        } catch (FrameworkException fex) {
                            logger.warn("", fex);
                        }
                        return files.iterator();
                    }
                    return Collections.emptyIterator();
                }

                @Override
                public void close() throws IOException {
                    closed = true;
                }
            };
        }

        @Override
        public void createDirectory(Path dir, FileAttribute<?>... attrs) throws IOException {
            logger.info("x");
            final StructrSSHFile parent = (StructrSSHFile) dir.getParent();
            final App app = StructrApp.getInstance(securityContext);
            final String name = dir.getFileName().toString();
            try (final Tx tx = app.tx()) {
                final Folder folder = app.create(Folder.class, new NodeAttribute(AbstractNode.name, name), new NodeAttribute(StructrApp.key(AbstractFile.class, "parent"), parent != null ? parent.getActualFile() : null));
                ((StructrSSHFile) dir).setActualFile(folder);
                tx.success();
            } catch (FrameworkException fex) {
                logger.warn("", fex);
                throw new IOException(fex);
            }
        }

        @Override
        public void delete(Path path) throws IOException {
            logger.info("Method not implemented yet");
        }

        @Override
        public void copy(Path source, Path target, CopyOption... options) throws IOException {
            logger.info("Method not implemented yet");
        }

        @Override
        public void move(Path source, Path target, CopyOption... options) throws IOException {
            logger.info("Method not implemented yet");
        }

        @Override
        public boolean isSameFile(Path path, Path path2) throws IOException {
            logger.info("x");
            return path != null && path.equals(path);
        }

        @Override
        public boolean isHidden(Path path) throws IOException {
            logger.info("Method not implemented yet");
            return false;
        }

        @Override
        public FileStore getFileStore(Path path) throws IOException {
            logger.info("Method not implemented yet");
            return null;
        }

        @Override
        public void checkAccess(Path path, AccessMode... modes) throws IOException {
            logger.info("Checking access", new Object[] { path, modes });
        }

        @Override
        public <V extends FileAttributeView> V getFileAttributeView(final Path path, final Class<V> type, final LinkOption... options) {
            logger.info("x");
            return (V) new PosixFileAttributeView() {

                @Override
                public String name() {
                    return "posix";
                }

                @Override
                public PosixFileAttributes readAttributes() throws IOException {
                    return new StructrPosixFileAttributes((StructrSSHFile) path);
                }

                @Override
                public void setPermissions(Set<PosixFilePermission> set) throws IOException {
                    logger.info("Method not implemented yet");
                }

                @Override
                public void setGroup(GroupPrincipal gp) throws IOException {
                    logger.info("Method not implemented yet");
                }

                @Override
                public void setTimes(FileTime ft, FileTime ft1, FileTime ft2) throws IOException {
                    logger.info("Method not implemented yet");
                }

                @Override
                public UserPrincipal getOwner() throws IOException {
                    logger.info("Method not implemented yet");
                    return null;
                }

                @Override
                public void setOwner(UserPrincipal up) throws IOException {
                    logger.info("Method not implemented yet");
                }
            };
        }

        @Override
        public <A extends BasicFileAttributes> A readAttributes(Path path, Class<A> type, LinkOption... options) throws IOException {
            logger.info("x");
            if (path != null) {
                if (path instanceof StructrSSHFile) {
                    final StructrSSHFile sshFile = (StructrSSHFile) path;
                    if (sshFile.getActualFile() == null) {
                        throw new NoSuchFileException("SSH file doesn't exist");
                    }
                    BasicFileAttributes attrs = new StructrPosixFileAttributes((StructrSSHFile) path);
                    return (A) attrs;
                }
            }
            throw new IOException("Unable to read attributes: Path is null");
        }

        @Override
        public Map<String, Object> readAttributes(Path path, String attributes, LinkOption... options) throws IOException {
            return Collections.EMPTY_MAP;
        }

        @Override
        public void setAttribute(Path path, String attribute, Object value, LinkOption... options) throws IOException {
            logger.info("Method not implemented yet");
            ;
        }

        private AbstractFile create(final Path path) throws IOException {
            logger.info("x");
            final StructrSSHFile parent = (StructrSSHFile) path.getParent();
            AbstractFile newFile = null;
            final App app = StructrApp.getInstance(securityContext);
            try (final Tx tx = app.tx()) {
                final String fileName = path.getFileName().toString();
                final Folder parentFolder = (Folder) parent.getActualFile();
                newFile = app.create(File.class, new NodeAttribute(AbstractNode.name, fileName), new NodeAttribute(StructrApp.key(AbstractFile.class, "parent"), parentFolder));
                tx.success();
            } catch (FrameworkException fex) {
                logger.warn("", fex);
                throw new IOException(fex);
            }
            return newFile;
        }
    };
}