import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.exception.StorageException;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.storage.StorageClient;
import org.codelibs.fess.storage.StorageClientFactory;
import org.codelibs.fess.storage.StorageItem;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.RenderDataUtil;

import com.google.cloud.storage.Storage.BlobListOption;
import com.google.cloud.storage.StorageOptions;

/**
 * Google Cloud Storage client implementation.
 */
public class GcsStorageClient implements StorageClient {

    private static final Logger logger = LogManager.getLogger(GcsStorageClient.class);

    private final Storage storage;
    private final String bucket;

    /**

/**
 * S3-compatible storage client implementation using AWS SDK v2.
 * Supports Amazon S3, MinIO, and other S3-compatible storage systems.
 */
public class S3StorageClient implements StorageClient {

    private static final Logger logger = LogManager.getLogger(S3StorageClient.class);

    private final S3Client s3Client;
    private final String bucket;

    /**

#### Client Architecture
- **HcHttpClient**: HTTP/HTTPS client using Apache HttpComponents
- **FileSystemClient**: File system access
- **FtpClient**: FTP protocol support
- **SmbClient**: SMB/CIFS network shares
- **StorageClient**: Cloud storage integration

#### Content Processing Pipeline
- **Extractors**: Content extraction from various formats
- **Transformers**: Data transformation and enrichment