## Tech Stack

| Component | Technology |
|-----------|------------|
| Web Framework | LastaFlute (MVC framework) |
| DI Container | Lasta Di |
| Data Access | DBFlute (type-safe ORM for OpenSearch) |
| Search Engine | OpenSearch |
| App Server | Embedded Tomcat |
| Crawler | fess-crawler library |
| Scheduler | Lasta Job |
| Logging | Log4j2 |
| Testing | JUnit 4/5, UTFlute, REST Assured |

## Development Commands

    // Search Engine Type Constants
    // ============================================================

    /** Cloud-based search engine type. */
    public static final String FESEN_TYPE_CLOUD = "cloud";

    /** AWS-based search engine type. */
    public static final String FESEN_TYPE_AWS = "aws";

    /** Search engine username configuration key. */

        return childUrlSet.isEmpty() ? null : childUrlSet;
    }

    /**
     * Retrieves child URLs for a given document ID from the search engine index.
     * This method queries the search engine for child documents and extracts their URLs.
     *
     * @param searchEngineClient the search engine client to query
     * @param id the parent document ID to find children for

package org.codelibs.fess.app.web.admin.badword;

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading bad word files to the Fess search engine.
 * This form is used in the admin interface to upload bad word dictionary files
 * that contain words to be filtered from search results.
 */
public class UploadForm {

    /**

[discuss.codelibs.org](https://discuss.codelibs.org/c/FessEN/)

## Getting Started

There are 2 ways to try Fess. The first is to download and install yourself. The second is to use [Docker](https://www.docker.com/products/docker-engine).

### Download and Install/Run

Fess 15.5 is now available and can be downloaded on the [Releases page](https://github.com/codelibs/fess/releases "download"). Downloads come in 3 flavors: deb, rpm, zip.

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading protected words files to the Fess search engine.
 * Protected words are terms that should not be stemmed or modified during text analysis.
 * This form is used in the admin interface to upload custom protected words dictionary files.
 */
public class UploadForm {

    }

    /**
     * Sets the name of the search engine cluster.
     *
     * @param clusterName the cluster name
     */
    public void setClusterName(final String clusterName) {
        this.clusterName = clusterName;
    }

    /**
     * Gets information about the search engine.
     *
     * @return the engine information

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading stemmer override files to the Fess search engine.
 * Stemmer override allows custom rules to override the default stemming behavior for specific words.
 * This form is used in the admin interface to upload custom stemmer override dictionary files.
 */
public class UploadForm {

package org.codelibs.fess.app.web.admin.dict.stopwords;

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

/**
 * Form for uploading stopwords files to the Fess search engine.
 * Stopwords are common words that should be ignored during search indexing and querying.
 * This form is used in the admin interface to upload custom stopwords dictionary files.
 */
public class UploadForm {

    /**

public class ScriptEngineExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructor_withMessage() {
        // Test constructor with message only
        String message = "Script engine error occurred";
        ScriptEngineException exception = new ScriptEngineException(message);

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

    @Test