import org.codelibs.fess.suggest.exception.SuggesterException;
import org.opensearch.core.common.Strings;
import org.opensearch.transport.client.Client;

/**
 * Abstract class representing a request that can be executed to produce a response.
 *
 * @param <T> the type of response produced by this request
 */
public abstract class Request<T extends Response> {
    /**
     * Constructs a new request.
     */

 *   <li>{@link #add(Normalizer)} - Adds a new normalizer to the chain.</li>
 * </ul>
 *
 * <p>Fields:</p>
 * <ul>
 *   <li>{@code normalizers} - A list of normalizers to be applied in sequence.</li>
 * </ul>
 */
public class NormalizerChain implements Normalizer {
    /**
     * Constructs a new {@link NormalizerChain}.
     */
    public NormalizerChain() {
        // nothing

 * This wrapper allows for parameter management and initialization before delegating to the wrapped factory.
 *
 * The wrapper maintains its own parameter map which can be initialized separately from the wrapped factory,
 * and provides access to the wrapped factory instance through getParent().
 *
 * All crawler client management operations (adding, getting clients, setting client map) are delegated

  sources like Apache Nutch, Apache HTTP Server, the file(1) command, etc.

  Notes:
   * Tika supports a wider range of match types than Freedesktop does
   * Glob patterns must be unique, if there's a clash assign to the most
     popular format
   * The main mime type should be the canonical one, use aliases for any
     other widely used forms
   * Where there's a hierarchy in the types, list it via a parent

/**
 * NullResponseProcessor is a class that implements the ResponseProcessor interface.
 * It provides a no-op implementation for processing response data.
 * This class can be used when you want to skip the response processing step in a crawler.
 *
 * @author kuma
 */
public class NullResponseProcessor implements ResponseProcessor {

    /**

     * end with a trailing slash, if your web server requires it. This value
     * must be less than 2,048 characters.
     */
    private String loc;

    /**
     * The date of last modification of the file. This date should be in W3C
     * Datetime format. This format allows you to omit the time portion, if
     * desired, and use YYYY-MM-DD.
     *

     * If no extractor exists for the key, a new array containing the extractor is created and associated with the key.
     *
     * @param key       The key associated with the extractor. Must not be null or blank.
     * @param extractor The extractor to add. Must not be null.
     */
    public void addExtractor(final String key, final Extractor extractor) {
        if (StringUtil.isBlank(key)) {

     */
    public AbstractRule() {
        // NOP
    }

    /**
     * Registers this rule with the {@link RuleManager}.
     *
     * @param index the index at which the rule should be registered
     */
    public void register(final int index) {
        final RuleManager ruleManager = crawlerContainer.getComponent("ruleManager");
        ruleManager.addRule(index, this);
    }

    @Override

 * <p>The factory maintains a map of regular expression patterns to crawler clients,
 * allowing for URL-based client selection. Clients can be added with specific patterns
 * and optionally at specific positions in the processing order.</p>
 *
 * <p>This factory is typically initialized through dependency injection and can be
 * configured with initialization parameters that are passed to all registered clients.</p>
 *
 * <p>Features:</p>
 * <ul>

        assertNotNull(component1);
        assertNotNull(component2);

        // Should be same instance for singleton
        assertSame(component1, component2);
        // The first creation should increment the counter
        assertTrue("Instance count should be at least 1", SingletonTestComponent.getInstanceCount() >= 1);
    }

    /**
     * Test wrap method
     */