* Uses ParamMap for automatic case format conversion between camelCase and snake_case.
     */
    protected final Map<String, Object> params;

    /**
     * Creates a new empty DataStoreParams instance.
     * Initializes the internal parameter map with a ParamMap wrapper.
     */
    public DataStoreParams() {
        params = new ParamMap<>(new HashMap<>());
    }

    /**

            private final AtomicLong execTime = new AtomicLong(0);

            @Override
            public void store(DataStoreParams paramMap, Map<String, Object> dataMap) {
                assertNotNull(paramMap);
                assertNotNull(dataMap);
                docSize.incrementAndGet();
                execTime.addAndGet(100);
            }

            @Override

     * with parameters from the paramMap substituted into the template.
     *
     * @param template the template string to evaluate
     * @param paramMap the map of parameters to substitute into the template
     * @return the result of evaluating the template, or null if evaluation fails
     */
    Object evaluate(final String template, final Map<String, Object> paramMap);

     * Handles document transformation, field addition, and batched indexing.
     *
     * @param paramMap the data store parameters
     * @param dataMap the document data to store
     * @throws DataStoreException if required fields are missing or other errors occur
     */
    @Override
    public void store(final DataStoreParams paramMap, final Map<String, Object> dataMap) {

        //  Parameters
        final Map<String, Object> paramMap = new HashMap<>();
        factory.setInitParameterMap(paramMap);

        final Map<String, String> clientConfigMap = getConfigParameterMap(ConfigName.CLIENT);
        if (clientConfigMap != null) {
            paramMap.putAll(clientConfigMap);
        }

        // auth params

     */
    public GroovyEngine() {
        super();
    }

    @Override
    public Object evaluate(final String template, final Map<String, Object> paramMap) {
        final Map<String, Object> bindingMap = new HashMap<>(paramMap);
        bindingMap.put("container", SingletonLaContainerFactory.getContainer());
        final GroovyShell groovyShell = new GroovyShell(new Binding(bindingMap));
        try {

        assertNotNull(client);
        assertTrue(client instanceof StorageClient);

    }

    public void test_setInitParameterMap() {
        final Map<String, Object> paramMap = new HashMap<String, Object>();
        paramMap.put("hoge", "test");

        final StringBuilder buf = new StringBuilder();
        clientFactory.addClient("test:.*", new CrawlerClient() {
            @Override

     *
     * @param paramMap the parameter map to process
     * @param queryKey the key for storing query string parameters
     * @param formKey the key for storing form input parameters
     */
    protected void buildInitParamMap(final Map<String, String> paramMap, final String queryKey, final String formKey) {
        if (!paramMap.isEmpty()) {

    /**
     * Stores a document in the search index with the specified parameters and data.
     *
     * @param paramMap the data store parameters containing configuration and metadata
     * @param dataMap the document data to be indexed as key-value pairs
     */
    void store(DataStoreParams paramMap, Map<String, Object> dataMap);

    /**
     * Returns the total number of documents processed by this callback.
     *

        new AbstractScriptEngine() {

            @Override
            public Object evaluate(String template, Map<String, Object> paramMap) {
                final Map<String, Object> bindingMap = new HashMap<>(paramMap);
                bindingMap.put("container", SingletonLaContainerFactory.getContainer());
                final GroovyShell groovyShell = new GroovyShell(new Binding(bindingMap));