ResultData currentResult = null;
        for (Transformer transformer : transformerChain) {
            currentResult = transformer.transform(responseData);
            assertNotNull(currentResult);
            assertEquals(transformer.getName(), currentResult.getTransformerName());
        }

        // Final result should be from last transformer
        assertEquals("third", currentResult.getTransformerName());

     *
     * @param responseData the data to be transformed
     * @return the transformed ResultData
     */
    ResultData transform(ResponseData responseData);

    /**
     * Retrieves data from the given AccessResultData object.
     *
     * @param accessResultData the AccessResultData object containing the data to be retrieved
     * @return an Object representing the data retrieved from the AccessResultData
     */

        ResultData result = transformer.transform(responseData);

        // Verify
        assertNotNull(result);
        assertEquals("customName", result.getTransformerName());
        assertEquals(1, transformer.getTransformCallCount());
        assertEquals("http://example.com/test", transformer.getLastResponseData().getUrl());

        // Reset and verify
        transformer.reset();

     * @return The transformed ResultData.
     */
    @Override
    public ResultData transform(final ResponseData responseData) {
        if (responseData == null || !responseData.hasResponseBody()) {
            throw new CrawlingAccessException("No response body.");
        }

        final ResultData resultData = new ResultData();
        resultData.setTransformerName(getName());

        responseData.setResponseBody(data);
        final ResultData resultData = binaryTransformer.transform(responseData);
        assertEquals("xyz", new String(resultData.getData()));
    }

    public void test_transform_null() {
        try {
            binaryTransformer.transform(null);
            fail();
        } catch (final CrawlerSystemException e) {
            // NOP
        }
    }

        responseData.setMimeType("text/html");
        final ResultData resultData = textTransformer.transform(responseData);
        assertEquals("xyz", new String(resultData.getData(), resultData.getEncoding()));
    }

    public void test_transform_null() {
        try {
            textTransformer.transform(null);
            fail();
        } catch (final CrawlerSystemException e) {
            // NOP
        }

        assertEquals(content, new String(resultData.getData()));
        assertEquals(1, resultData.getChildUrlSet().size());
        assertEquals("http://hoge/test.html?q=hoge", resultData.getChildUrlSet().iterator().next().getUrl());
    }

    public void test_transform_null() {
        try {
            htmlTransformer.transform(null);
            fail();

    public TextTransformer() {
        super();
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * org.codelibs.fess.crawler.transformer.impl.AbstractTransformer#transform(org.fess.crawler.entity.ResponseData)
     */
    @Override
    public ResultData transform(final ResponseData responseData) {
        if (responseData == null || !responseData.hasResponseBody()) {

        responseData.setResponseBody(ResourceUtil.getResourceAsFile("extractor/test.xml"), false);
        responseData.setCharSet(Constants.UTF_8);
        final ResultData resultData = xmlTransformer.transform(responseData);
        assertEquals(result, new String(resultData.getData(), Constants.UTF_8));
    }

    public void test_transformNs() throws Exception {
        final String result = "<?xml version=\"1.0\"?>\n"//

 * </p>
 *
 * <p>
 * Example Usage:
 * </p>
 *
 * <pre>
 * XmlTransformer transformer = new XmlTransformer();
 * transformer.setNamespaceAware(true);
 * transformer.setCacheDuration(30);
 * transformer.addFieldRule("title", "/book/title/text()");
 * transformer.addFieldRule("author", "/book/author/name/text()");
 *
 * ResponseData responseData = new ResponseData();