@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 testWriteContentRange() throws Exception {
        final FTPWriteFeature feature = new FTPWriteFeature(session);
        final Path test = new Path(new FTPWorkdirService(session).find(), new AlphanumericRandomStringService().random(), EnumSet.of(Path.Type.file));
        final byte[] content = RandomUtils.nextBytes(64000);
        {
            final TransferStatus status = new TransferStatus();
            status.setLength(1024L);
            final OutputStream out = feature.write(test, status, new DisabledConnectionCallback());
            // Write first 1024
            new StreamCopier(status, status).withOffset(0L).withLimit(status.getLength()).transfer(new ByteArrayInputStream(content), out);
            out.close();
        }
        assertTrue(new DefaultFindFeature(session).find(test));
        assertEquals(1024L, new DefaultAttributesFinderFeature(session).find(test).getSize());
        {
            // Remaining chunked transfer with offset
            final TransferStatus status = new TransferStatus();
            status.setLength(content.length - 1024L);
            status.setOffset(1024L);
            status.setAppend(true);
            final OutputStream out = feature.write(test, status, new DisabledConnectionCallback());
            new StreamCopier(status, status).withOffset(status.getOffset()).withLimit(status.getLength()).transfer(new ByteArrayInputStream(content), out);
            out.close();
        }
        final ByteArrayOutputStream out = new ByteArrayOutputStream(content.length);
        IOUtils.copy(new FTPReadFeature(session).read(test, new TransferStatus().withLength(content.length), new DisabledConnectionCallback()), out);
        assertArrayEquals(content, out.toByteArray());
        new FTPDeleteFeature(session).delete(Collections.singletonList(test), new DisabledLoginCallback(), new Delete.DisabledCallback());
    }