* Interface for data service operations related to access results.
 *
 * @param <RESULT> the type of access result
 */
public interface DataService<RESULT extends AccessResult<?>> {

    /**
     * Stores the given access result.
     *
     * @param accessResult the access result to store
     */
    void store(RESULT accessResult);

    /**
     * Updates the given access result.
     *

    /** Helper for managing access result data in memory */
    @Resource
    protected MemoryDataHelper dataHelper;

    /**
     * Constructs a new DataServiceImpl.
     */
    public DataServiceImpl() {
        // Default constructor
    }

    /**
     * Stores an access result in the data store.
     *
     * @param accessResult the access result to store

    /** The unique identifier for the access result data. */
    protected IDTYPE id;

    /** The name of the transformer associated with this access result data. */
    protected String transformerName;

    /** The data as a byte array. */
    protected byte[] data;

    /** The encoding used for the access result data. */
    protected String encoding;

    /**

            }
        }
    }

    /**
     * Converts this access result data to XContent format for OpenSearch indexing.
     *
     * @param builder The XContentBuilder to write to.
     * @param params Additional parameters for the conversion.
     * @return The XContentBuilder with the access result data.
     * @throws IOException if the conversion fails.
     */
    @Override

/**
 * Represents the result of accessing a resource.
 *
 * @param <IDTYPE> the type of the identifier for the access result
 */
public interface AccessResult<IDTYPE> {

    /**
     * Initializes the access result with the given response and result data.
     *
     * @param responseData the response data
     * @param resultData the result data
     */

/**
 * A callback interface for processing access results.
 *
 * @param <RESULT> the type of access result that extends {@link AccessResult}
 */
public interface AccessResultCallback<RESULT extends AccessResult<?>> {
    /**
     * Processes the given access result.
     *
     * @param accessResult the result of the access operation to be processed
     */
    /**

        return result;
    }

    @Override
    public SuggestWriterResult delete(final Client client, final SuggestSettings settings, final String index, final String id) {
        final SuggestWriterResult result = new SuggestWriterResult();
        try {
            client.prepareDelete().setIndex(index).setId(id).execute().actionGet(settings.getIndexTimeout());
        } catch (final Exception e) {
            result.addFailure(e);

            logger.debug("Visited urlQueue: {}", urlQueue);
        }
    }

    /**
     * Creates an access result from response data and result data.
     *
     * @param responseData the response data
     * @param resultData the result data
     * @return the created access result
     */
    protected AccessResult<?> createAccessResult(final ResponseData responseData, final ResultData resultData) {

        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"//
                + "<doc>\n"//

    /**
     * Field name for access result data.
     */
    public static final String ACCESS_RESULT_DATA = "accessResultData";

    /**
     * Flag indicating whether the access result data has been initialized.
     */
    private boolean initializedData = false;

    /**
     * Initializes the access result with response data and result data.
     *