@Override
    public StatusOutputStream<Void> write(final Path file, final TransferStatus status, final ConnectionCallback callback) throws BackgroundException {
        try {
            if(!session.getClient().setFileType(FTPClient.BINARY_FILE_TYPE)) {
                throw new FTPException(session.getClient().getReplyCode(), session.getClient().getReplyString());
            }
            final OutputStream out = new DataConnectionActionExecutor(session).data(new DataConnectionAction<OutputStream>() {
                @Override
                public OutputStream execute() throws BackgroundException {
                    try {
                        if(status.isAppend()) {
                            if(!status.isExists()) {
                                log.warn(String.format("Allocate %d bytes for file %s", status.getOffset(), file));
                                session.getClient().allocate((int) status.getOffset());
                            }
                            return session.getClient().appendFileStream(file.getAbsolute());
                        }
                        else {
                            return session.getClient().storeFileStream(file.getAbsolute());
                        }
                    }
                    catch(IOException e) {
                        throw new FTPExceptionMappingService().map(e);
                    }
                }
            });
            return new ReadReplyOutputStream(out, status);
        }
        catch(IOException e) {
            throw new FTPExceptionMappingService().map("Upload {0} failed", e, file);
        }
    }
@Test
    public void testReadWrite() throws Exception {
        final TransferStatus status = new TransferStatus();
        final byte[] content = "test".getBytes(StandardCharsets.UTF_8);
        status.setLength(content.length);
        final Path test = new Path(new FTPWorkdirService(session).find(), new AlphanumericRandomStringService().random(), EnumSet.of(Path.Type.file));
        final OutputStream out = new FTPWriteFeature(session).write(test, status, new DisabledConnectionCallback());
        assertNotNull(out);
        new StreamCopier(new TransferStatus(), new TransferStatus()).transfer(new ByteArrayInputStream(content), out);
        out.close();
        assertTrue(session.getFeature(Find.class).find(test));
        final PathAttributes attributes = new FTPListService(session, null, TimeZone.getDefault()).list(test.getParent(), new DisabledListProgressListener()).get(test).attributes();
        assertEquals(content.length, attributes.getSize());
        {
            final InputStream in = new FTPReadFeature(session).read(test, new TransferStatus().withLength(content.length), new DisabledConnectionCallback());
            final ByteArrayOutputStream buffer = new ByteArrayOutputStream(content.length);
            new StreamCopier(status, status).transfer(in, buffer);
            in.close();
            assertArrayEquals(content, buffer.toByteArray());
        }
        {
            final byte[] buffer = new byte[content.length - 1];
            final InputStream in = new FTPReadFeature(session).read(test, new TransferStatus().withLength(content.length).append(true).withOffset(1L), new DisabledConnectionCallback());
            IOUtils.readFully(in, buffer);
            in.close();
            final byte[] reference = new byte[content.length - 1];
            System.arraycopy(content, 1, reference, 0, content.length - 1);
            assertArrayEquals(reference, buffer);
        }
        new FTPDeleteFeature(session).delete(Collections.singletonList(test), new DisabledLoginCallback(), new Delete.DisabledCallback());
    }