*
 * <p>Features:
 * <ul>
 *   <li>Automatic initialization of MinIO client</li>
 *   <li>Support for HEAD and GET operations</li>
 *   <li>Content length validation</li>
 *   <li>MIME type detection</li>
 *   <li>Handling of large files through temporary file storage</li>
 *   <li>Object metadata and tags retrieval</li>
 *   <li>Directory listing capabilities</li>
 * </ul>
 *

	    Parameter and result names are not required to match.</li>

	<li>Two interface types are identical if they define the same type set.
	</li>

	<li>Two map types are identical if they have identical key and element types.</li>

	<li>Two channel types are identical if they have identical element types and
	    the same direction.</li>

	<li>Two <a href="#Instantiations">instantiated</a> types are identical if

 *   <li>ROBOTS_TXT_ENABLED_PROPERTY: Enable or disable robots.txt parsing.</li>
 *   <li>AUTHENTICATIONS_PROPERTY: Web authentications.</li>
 *   <li>REQUEST_HEADERS_PROPERTY: Custom request headers.</li>
 *   <li>REDIRECTS_ENABLED: Enable or disable HTTP redirects.</li>
 *   <li>COOKIES_PROPERTY: Cookie settings.</li>
 *   <li>AUTH_SCHEME_PROVIDERS_PROPERTY: Authentication scheme providers.</li>

 * <p>
 * This class provides several configuration options to customize the XML parsing process, such as:
 * </p>
 * <ul>
 *   <li>Namespace awareness</li>
 *   <li>Coalescing</li>
 *   <li>Entity expansion</li>
 *   <li>Ignoring comments and whitespace</li>
 *   <li>Validation</li>
 *   <li>XInclude awareness</li>
 * </ul>
 *
 * <p>

 * </p>
 * <ul>
 *   <li><b>fieldRuleMap:</b> A map of field names to XPath expressions.</li>
 *   <li><b>trimSpaceEnabled:</b> A flag to enable or disable trimming of whitespace from extracted values.</li>
 *   <li><b>charsetName:</b> The character encoding for the output XML.</li>
 *   <li><b>dataClass:</b> The class type to return from the {@link #getData(AccessResultData)} method.</li>
 * </ul>
 *
 */

 * </p>
 *
 * <h2>Dependencies:</h2>
 * <ul>
 *   <li>org.apache.logging.log4j.Logger</li>
 *   <li>org.apache.logging.log4j.LogManager</li>
 *   <li>org.xml.sax.InputSource</li>
 *   <li>javax.xml.parsers.SAXParser</li>
 *   <li>javax.xml.parsers.SAXParserFactory</li>
 *   <li>org.xml.sax.helpers.DefaultHandler</li>
 *   <li>org.codelibs.fess.crawler.Constants</li>
 *   <li>org.codelibs.fess.crawler.exception.CrawlerSystemException</li>

 * <li>{@link #TIMESTAMP} - The timestamp field.</li>
 * <li>{@link #TAGS} - The tags field.</li>
 * <li>{@link #ROLES} - The roles field.</li>
 * <li>{@link #FIELDS} - The fields field.</li>
 * <li>{@link #LANGUAGES} - The languages field.</li>
 * <li>{@link #ARRAY_KEY} - The key for array elements.</li>
 * <li>{@link #ARRAY_VALUE} - The value for array elements.</li>

 * </p>
 * <ul>
 *   <li>Starting and finishing threads</li>
 *   <li>Starting and cleaning up crawling</li>
 *   <li>Handling unsupported URLs</li>
 *   <li>Checking last modified dates</li>
 *   <li>Getting content</li>
 *   <li>Handling redirects</li>
 *   <li>Processing responses</li>
 *   <li>Handling exceptions during crawling and child URL processing</li>
 *   <li>Handling cases where no URL is in the queue</li>

 * </ul>
 *
 * <p>
 * The class also supports configuration options such as:
 * </p>
 * <ul>
 *   <li>Output encoding</li>
 *   <li>Maximum compression ratio and uncompression size</li>
 *   <li>Initial buffer size</li>
 *   <li>Memory size for temporary file storage</li>
 *   <li>Maximum term sizes for alphanumeric and symbolic terms</li>
 *   <li>Custom Tika configuration</li>

 * <li>{@link #loadIndexSettings()}: Loads the index settings from a JSON file.</li>
 * </ul>
 *
 * <p>Fields:
 * <ul>
 * <li>{@link #logger}: Logger instance for logging debug information.</li>
 * <li>{@link #client}: OpenSearch client instance.</li>
 * <li>{@link #arraySettingsIndexName}: Name of the array settings index.</li>
 * <li>{@link #settingsId}: ID of the settings.</li>