## Header 2 { #header-2 }

Two links here: <a href="https://fastapi.tiangolo.com/how-to/">How to</a> and <a href="project-generation.md" class="internal-link" target="_blank">Project Generators</a>.

### Header 3 { #header-3 }

Another link: <a href="project-generation.md" class="internal-link" target="_blank" title="Link title">**FastAPI** Project Generators</a> with title.

# Header 4 { #header-4 }

 */
public class CommandGenerator extends BaseThumbnailGenerator {
    private static final Logger logger = LogManager.getLogger(CommandGenerator.class);

    /** List of command strings to execute for thumbnail generation. */
    protected List<String> commandList;

    /** Timeout for command execution in milliseconds. */
    protected long commandTimeout = 30 * 1000L;// 30sec

import org.junit.jupiter.api.Test;

import static java.util.Objects.nonNull;

/**
 * Pseudo test to generate documentation fragment about supported CLI options. TODO such documentation generation code
 * should not be necessary as unit test but should be run during site generation (Velocity? Doxia macro?)
 */
@Deprecated
class CLIManagerDocumentationTest {
    private static final String LS = System.lineSeparator();

# Links { #links }

## Markdown-style links { #markdown-style-links }

This is a [Markdown link](https://example.com) to an external site.

This is a link with attributes: [**FastAPI** Project Generators](project-generation.md){.internal-link target=_blank}

This is a link to the main FastAPI site: [FastAPI](https://fastapi.tiangolo.com) - tool should add language code to the URL.

     * This implementation is empty as no cleanup is required.
     */
    @Override
    public void destroy() {
    }

    /**
     * Creates a thumbnail generation task for the specified document.
     *
     * @param path the file path or URL of the document
     * @param docMap the document metadata map containing field values

# Ссылки { #links }

## Ссылки в стиле Markdown { #markdown-style-links }

Это [Markdown-ссылка](https://example.com) на внешний сайт.

Это ссылка с атрибутами: [**FastAPI** генераторы проектов](project-generation.md){.internal-link target=_blank}

Это ссылка на основной сайт FastAPI: [FastAPI](https://fastapi.tiangolo.com) — инструмент должен добавить код языка в URL.

 */
package org.codelibs.fess.thumbnail;

import java.io.File;
import java.util.Map;

import org.codelibs.core.misc.Tuple3;

/**
 * Interface for thumbnail generation implementations.
 * Provides methods for creating thumbnails from various document types.
 */
public interface ThumbnailGenerator {

    /**
     * Gets the name of this thumbnail generator.

    protected String evaluationPrompt;
    /** The system prompt for answer generation. */
    protected String answerGenerationSystemPrompt;
    /** The system prompt for summary generation. */
    protected String summarySystemPrompt;
    /** The system prompt for FAQ answer generation. */
    protected String faqAnswerSystemPrompt;
    /** The system prompt for direct answer generation. */
    protected String directAnswerSystemPrompt;

 */
public class GenerateThumbnailJob extends ExecJob {
    /** Logger for this class. */
    static final Logger logger = LogManager.getLogger(GenerateThumbnailJob.class);

    /** Number of threads to use for thumbnail generation. */
    protected int numOfThreads = 1;

    /** Flag indicating whether to perform cleanup operations. */
    protected boolean cleanup = false;

    /**
     * Default constructor for the GenerateThumbnailJob.

    protected final List<ThumbnailGenerator> generatorList = new ArrayList<>();

    /**
     * Queue for thumbnail generation tasks containing URL, content, and path tuples.
     */
    protected BlockingQueue<Tuple3<String, String, String>> thumbnailTaskQueue;

    /**
     * Flag indicating whether thumbnail generation is currently in progress.
     */
    protected volatile boolean generating;

    private Thread thumbnailQueueThread;