assertEquals(0, responseData.getContentLength());
            assertEquals("", new String(InputStreamUtil.getBytes(responseData.getResponseBody())));
        }

        try (ResponseData responseData = client.doHead(emptyFileUrl)) {
            assertEquals(200, responseData.getHttpStatusCode());
            assertEquals(0, responseData.getContentLength());
            assertNull(responseData.getResponseBody());

            assertEquals(0, responseData.getContentLength());
            assertEquals("", new String(InputStreamUtil.getBytes(responseData.getResponseBody())));
        }

        try (ResponseData responseData = client.doHead(emptyFileUrl)) {
            assertEquals(200, responseData.getHttpStatusCode());
            assertEquals(0, responseData.getContentLength());
            assertNull(responseData.getResponseBody());

        }

        return name;
    }

    @Override
    public String getUrl() {
        return getRepositoryUrl() + getName();
    }

    @Override
    public long getContentLength() {
        return resource.getContentLength();
    }

    @Override
    public long getTransferStartTime() {
        return transferStartTime;
    }

    @Override
    public String toString() {
        return getUrl();

                        final long maxLength = contentLengthHelper.getMaxLength(responseData.getMimeType());
                        if (responseData.getContentLength() > maxLength) {
                            throw new MaxLengthExceededException("The content length (" + responseData.getContentLength()
                                    + " byte) is over " + maxLength + " byte. The url is " + filePath);
                        }
                    }

        AccessResultImpl<Long> result = new AccessResultImpl<>();

        result.setContentLength(2048L);
        assertEquals(Long.valueOf(2048L), result.getContentLength());

        result.setContentLength(0L);
        assertEquals(Long.valueOf(0L), result.getContentLength());
    }

    public void test_lastModifiedGetterSetter() {
        // Test last modified getter/setter

        // Test content length getter/setter
        ResponseData data = new ResponseData();

        data.setContentLength(1024L);
        assertEquals(1024L, data.getContentLength());

        data.setContentLength(0L);
        assertEquals(0L, data.getContentLength());
    }

    public void test_mimeTypeGetterSetter() {
        // Test MIME type getter/setter
        ResponseData data = new ResponseData();

            assertEquals("text/plain", responseData.getMimeType());
            assertEquals("file1", new String(InputStreamUtil.getBytes(responseData.getResponseBody())));
            assertEquals(5, responseData.getContentLength());
            assertEquals("label1", responseData.getMetaDataMap().get("label"));
        }
        try (final ResponseData responseData = storageClient.doGet("storage://fess/dir1/file2.txt")) {

            assertEquals("text/plain", responseData.getMimeType());
            assertEquals("file1", new String(InputStreamUtil.getBytes(responseData.getResponseBody())));
            assertEquals(5, responseData.getContentLength());
            assertEquals("label1", responseData.getMetaDataMap().get("label"));
        }
        try (final ResponseData responseData = s3Client.doGet("s3://fess/dir1/file2.txt")) {

        assertEquals(200, responseData.getHttpStatusCode());
        assertEquals("UTF-8", responseData.getCharSet());
        assertTrue(6 == responseData.getContentLength() || 7 == responseData.getContentLength());
        assertNotNull(responseData.getLastModified());
        assertEquals(Constants.GET_METHOD, responseData.getMethod());
        assertEquals("text/plain", responseData.getMimeType());

     */
    protected void checkMaxContentLength(final ResponseData responseData) {
        if (maxContentLength != null && responseData.getContentLength() > maxContentLength.longValue()) {
            throw new MaxLengthExceededException("The content length (" + responseData.getContentLength() + " byte) is over "
                    + maxContentLength.longValue() + " byte. The url is " + responseData.getUrl());
        }
    }