## Key Patterns

### Actions (Controllers)
- Located in `app.web.*` or `app.web.admin.*`
- Methods with `@Execute` are web endpoints
- DI via `@Resource` annotation
- `HtmlResponse` for JSP, `JsonResponse` for APIs

### Services
- Business logic in `app.service.*`
- Injected into Actions
- Use behavior classes to access OpenSearch

### Helpers

 */
package org.codelibs.fess.cors;

import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;

/**
 * Abstract base class for handling CORS (Cross-Origin Resource Sharing) requests.
 * Provides common CORS header constants and defines the processing interface.
 */
public abstract class CorsHandler {

    /**
     * Creates a new instance of CorsHandler.
     */

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository;

/**
 * Describes a resource being uploaded or downloaded by the repository system.
 *
 */
@Deprecated
public interface ArtifactTransferResource {

    /**

        }
    }

    private void validate20RawResources(
            ModelProblemCollector problems, List<Resource> resources, String prefix, ModelBuildingRequest request) {
        Severity errOn30 = getSeverity(request, ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_0);

        for (Resource resource : resources) {
            validateStringNotEmpty(
                    prefix,
                    "directory",

import org.opensearch.index.query.QueryBuilders;

import jakarta.annotation.Resource;

/**
 * Test class for OpenSearchUrlFilterService.
 *
 * @author shinsuke
 */
public class OpenSearchUrlFilterServiceTest extends LastaDiTestCase {
    @Resource
    private OpenSearchUrlFilterService urlFilterService;

    @Resource
    private FesenClient fesenClient;

    private OpenSearchRunner runner;

    /** Injected search engine client for OpenSearch operations. */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /** Injected helper for web and file system indexing operations. */
    @Resource
    protected WebFsIndexHelper webFsIndexHelper;

    /** Injected helper for data store indexing operations. */
    @Resource
    protected DataIndexHelper dataIndexHelper;

But if you have custom headers that you want a client in a browser to be able to see, you need to add them to your CORS configurations ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) using the parameter `expose_headers` documented in <a href="https://www.starlette.dev/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette's CORS docs</a>.

///

            CloseableUtil.close(in);
        }
    }

    /**
     * Loads a resource from the context class loader into the {@link Properties} (wraps exception handling).
     *
     * @param props
     *            Property set. Must not be {@literal null}.
     * @param path
     *            Resource path. Must not be {@literal null} or empty.
     */

import org.codelibs.fess.opensearch.config.exentity.WebConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin web configuration management.
 *
 */
public class ApiAdminWebconfigAction extends FessApiAdminAction {

    /** The logger for this class. */

        super();
    }

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

    @Resource
    private BadWordService badWordService;

    /** Helper for managing search suggestions and bad words */
    @Resource
    protected SuggestHelper suggestHelper;

    /**
     * Retrieves bad word settings with pagination support.
     *