}

    /**
     * Reads up to len bytes of data from the input stream into an array of bytes.
     *
     * @param b the buffer into which the data is read
     * @param off the start offset in array b at which the data is written
     * @param len the maximum number of bytes to read
     * @return the total number of bytes read into the buffer, or -1 if there is no more data

        assertNull(transformer.getName());
    }

    /**
     * Test getName and setName with normal values
     */
    public void test_name_getterSetter() {
        // Initial state
        assertNull(testTransformer.getName());

        // Set name
        testTransformer.setName("testTransformer");
        assertEquals("testTransformer", testTransformer.getName());

        // Change name

 * Map<String, Object> dataMap = XmlUtil.getDataMap(accessResultData);
 * }
 * </pre>
 *
 * <h2>Thread Safety:</h2>
 * <p>
 * This class is thread-safe as it does not maintain any state.
 * </p>
 *
 * <h2>Dependencies:</h2>
 * <ul>
 *   <li>org.apache.logging.log4j.Logger</li>
 *   <li>org.apache.logging.log4j.LogManager</li>
 *   <li>org.xml.sax.InputSource</li>

 *   <li>{@link UrlQueueService} - The service for managing the URL queue.</li>
 *   <li>{@link DataService} - The service for managing access results.</li>
 * </ul>
 *
 * <p>Each parameter is stored in a ThreadLocal variable to ensure thread safety.</p>
 *
 * <p>Usage example:</p>
 * <pre>
 * {@code
 * UrlQueue<?> urlQueue = CrawlingParameterUtil.getUrlQueue();
 * CrawlingParameterUtil.setUrlQueue(newUrlQueue);

import io.minio.errors.InvalidResponseException;
import io.minio.errors.ServerException;
import io.minio.errors.XmlParserException;

/**
 * Handler for the "storage" protocol, allowing access to objects stored in a MinIO-compatible storage service.
 * This handler extends {@link URLStreamHandler} to provide a way to open connections to storage objects
 * using URLs with the "storage" protocol.
 *
 * <p>

 * to ensure visibility of changes across threads.
 *
 * <p>The class also provides methods to manage URL patterns for inclusion and exclusion, which
 * are stored as {@code Pattern} objects.
 */
public class MemoryDataHelper {
    /** Map of session IDs to URL queues for managing crawling queues. */

        this.listener = listener;
    }

    /**
     * Interface for listening to request lifecycle events.
     */
    public interface RequestListener {

        /**
         * Called when a request starts.
         *
         * @param client the fault-tolerant client
         * @param request the request data
         */
        void onRequestStart(FaultTolerantClient client, RequestData request);

        /**

- **HTTP Client**: Apache HttpComponents
- **Content Extraction**: Apache Tika, Apache POI, PDFBox
- **Testing**: JUnit 4, UTFlute, Testcontainers
- **Storage Backends**: OpenSearch, Memory-based

## Quick Start

### Prerequisites

- Java 21 or higher
- Maven 3.6 or higher

### Installation

Add the following dependency to your `pom.xml`:

```xml
<dependency>
    <groupId>org.codelibs.fess</groupId>

 * It also checks for duplicate URLs before adding them to the queue,
 * both within the queue itself and against previously accessed URLs stored in the {@link MemoryDataHelper}.
 * </p>
 *
 */
/**
 * This class is an implementation of {@link UrlQueueService}.
 */
public class UrlQueueServiceImpl implements UrlQueueService<UrlQueueImpl<Long>> {

    /**

- **Apache Lucene**: Query parsing and text analysis
- **ICU4J**: Unicode text processing and normalization
- **JUnit 4**: Testing framework
- **Maven**: Build and dependency management

## Quick Start

### Prerequisites

- Java 21 or higher
- OpenSearch/Elasticsearch cluster (2.x+ recommended)
- Maven 3.8+ for building from source

### Installation

Add the dependency to your `pom.xml`:

```xml