import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Iterator;
import java.util.Queue;
import org.jspecify.annotations.Nullable;

/**
 * Views elements of a type {@code T} as nodes in a tree, and provides methods to traverse the trees
 * induced by this traverser.
 *
 * <p>For example, the tree
 *
 * {@snippet :
 *        h
 *      / | \
 *     /  e  \
 *    d       g
 *   /|\      |
 *  / | \     f

import java.net.SocketException;
import java.net.SocketTimeoutException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * RDMA error handling and recovery logic.
 *
 * This class provides centralized error handling for RDMA operations,
 * including retry logic and fallback mechanisms.
 */
public class RdmaErrorHandler {

    private static final Logger log = LoggerFactory.getLogger(RdmaErrorHandler.class);

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager class for search log pagination and filtering.
 *
 * This class provides pagination functionality for various types of search logs
 * including search logs, click logs, favorite logs, and user information logs.
 * It also supports different aggregation types for analytics and reporting.
 */

import com.orangesignal.csv.CsvConfig;
import com.orangesignal.csv.CsvReader;
import com.orangesignal.csv.CsvWriter;

import jakarta.annotation.Resource;

/**
 * Service class for bad word management operations.
 * Provides CRUD operations and CSV import/export functionality for bad words.
 */
public class BadWordService {

    private static final String DELETE_PREFIX = "--";

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin file authentication management.
 * Provides RESTful API endpoints for managing file authentication settings in the Fess search engine.
 * File authentication settings define access credentials and permissions for file-based crawling.
 *
 */

import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.exception.ExtractException;

/**
 * Abstract base class for XML extractors.
 * Provides common functionality for extracting text content from XML-like documents.
 * It handles encoding detection, HTML entity unescaping, and tag-based content extraction.
 *
 */

 * It maintains the state of a Maven execution and provides access to all core services and components.
 * Sessions are thread-safe and can be obtained in session-scoped components using the
 * {@link org.apache.maven.api.di.SessionScoped} annotation.</p>
 *
 * <p>Key capabilities provided through the Session include:</p>
 * <ul>
 *   <li>Access to the current {@link org.apache.maven.api.Project}</li>

import org.lastaflute.web.util.LaServletContextUtil;

import jakarta.servlet.ServletContext;

/**
 * Utility class for accessing various resource paths and files in the Fess application.
 * This class provides methods to retrieve paths for configuration files, templates, dictionaries,
 * thumbnails, plugins, and other resources required by the Fess search engine.
 * It supports both regular deployment and Docker container environments.
 *

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.UnknownHostException;

import jcifs.smb1.util.Encdec;

/**
 * This class provides random access to files stored on an SMB/CIFS network resource.
 * It implements the DataInput and DataOutput interfaces for reading and writing primitive
 * Java data types to the file.
 */

}

// ContentLengthRange - policy content-length-range field.
type contentLengthRange struct {
	Min   int64
	Max   int64
	Valid bool // If content-length-range was part of policy
}

// PostPolicyForm provides strict static type conversion and validation for Amazon S3's POST policy JSON string.
type PostPolicyForm struct {
	Expiration time.Time // Expiration date and time of the POST policy.