import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Helper class for indexing operations in the Fess search engine.
 * This class provides functionality for sending documents to the search engine,
 * managing document lifecycle operations (create, update, delete), and handling
 * thumbnail processing during indexing.
 *

        final GroovyEngine engine = new GroovyEngine();
        engine.scriptCacheSize = 5;
        engine.init();

        final Map<String, Object> params = new HashMap<>();
        for (int i = 0; i < 10; i++) {
            assertEquals(i, engine.evaluate("return " + i, params));
        }
        // eviction後も再コンパイルで正しく動作
        assertEquals(0, engine.evaluate("return 0", params));
        engine.close();

    }

    /**
     * Gets a script engine.
     * @param name The name of the script engine.
     * @return The script engine.
     */
    public ScriptEngine getScriptEngine(final String name) {
        if (name == null) {
            throw new ScriptEngineException("Script engine name parameter is null. A valid script engine name must be provided.");
        }

    public void test_add_validParameters() {
        TestScriptEngine engine = new TestScriptEngine();
        scriptEngineFactory.add("testEngine", engine);

        // Verify engine is accessible by name
        ScriptEngine retrieved = scriptEngineFactory.getScriptEngine("testengine");
        assertNotNull(retrieved);
        assertEquals(engine, retrieved);

        // Verify engine is accessible by class simple name

        scriptEngineFactory.add("type2", engine2);

        // Execute with first engine
        Object result1 = scriptExecutor.execute("type1", "script for engine1");
        assertEquals("engine1:processed: script for engine1", result1);

        // Execute with second engine
        Object result2 = scriptExecutor.execute("type2", "script for engine2");

    @Test
    public void test_fromClassNameToComponentName() {
        // Test with class name ending with Pager
        String componentName = namingConvention.fromClassNameToComponentName("com.example.TestPager");
        assertNotNull(componentName);
        assertEquals("testPager", componentName);

        // Test with class name not ending with Pager

    /**
     * Array of new input character sequences for update operations.
     * When not null, indicates this item has pending updates.
     */
    private String[] newInputs;

    /**
     * The new output character sequence for update operations.
     * When not null, indicates this item has pending updates.
     */
    private String newOutput;

    /**

            if (logger.isDebugEnabled()) {
                logger.debug("Search Engine CPU: {}%", maxCpu);
            }
        } catch (final Exception e) {
            systemHelper.setSearchEngineCpuPercent((short) 0);
            consecutiveFailures++;
            if (consecutiveFailures <= 3) {
                logger.warn("Failed to get search engine CPU stats.", e);
            } else if (logger.isDebugEnabled()) {

    /**
     * Constructs a new creator for stemmer override dictionaries.
     * It sets the file pattern to match files starting with "stemmer_override"
     * and ending with ".txt".
     */
    public StemmerOverrideCreator() {
        super("stemmer_override.*\\.txt");
    }

    /**
     * Registers this creator with the dictionary manager upon initialization.

import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * API manager for search engine administrative operations.
 * Provides secure access to search engine APIs through authentication and token-based authorization.
 */
public class SearchEngineApiManager extends BaseApiManager {
    private static final String ADMIN_SERVER = "/admin/server_";