* governing permissions and limitations under the License.
 */
package org.codelibs.fess.storage;

import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;

/**
 * Interface for cloud storage operations.
 * Implementations provide access to S3-compatible storage, GCS, or other cloud storage systems.
 */
public interface StorageClient extends AutoCloseable {

    /**

import com.google.cloud.storage.Blob;
import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.BlobInfo;
import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.BucketInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.Storage.BlobListOption;
import com.google.cloud.storage.StorageOptions;

/**
 * Google Cloud Storage client implementation.
 */

    public String logLevel;

    /**
     * Storage service endpoint URL for cloud storage integration.
     * Used for storing files in cloud storage services like S3.
     */
    @Size(max = 1000)
    public String storageEndpoint;

    /**
     * Access key for cloud storage authentication.
     * Used to authenticate with cloud storage services.
     */
    @Size(max = 1000)

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.storage;

/**
 * Enum for supported storage types.
 */
public enum StorageType {

    /** Amazon S3 */
    S3,

    /** Google Cloud Storage */
    GCS,

    /** S3-compatible storage (MinIO, etc.) */
    S3_COMPAT

public class StorageExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructorWithMessage() {
        // Test constructor with message only
        String message = "Storage error occurred";
        StorageException exception = new StorageException(message);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());

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 org.dbflute.optional.OptionalThing;

    private StorageClientFactory() {
        // Utility class
    }

    /**
     * Auto-detect storage type from endpoint URL.
     *
     * @param endpoint the storage endpoint URL
     * @return detected storage type
     */
    public static StorageType detectStorageType(final String endpoint) {
        if (StringUtil.isBlank(endpoint)) {

        String old = storage.put(key, value);
        if (old == null || !old.equals(value)) {
            Layout l = layout.get(key);
            if (l != null) {
                l.clearValue();
            }
        }
        return old;
    }

    void putAllSubstituted(Map<? extends String, ? extends String> m) {
        storage.putAll(m);
    }

    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="storage"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">

import software.amazon.awssdk.services.s3.model.Tag;
import software.amazon.awssdk.services.s3.model.Tagging;

/**
 * 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);