* @param params The parameter string.
     * @param paramList Additional parameters.
     * @param encoding The encoding.
     * @return The HttpEntity containing the parsed parameters.
     */
    protected HttpEntity parseRequestParameters(final String params, final List<Pair<String, String>> paramList, final String encoding) {
        try {
            final List<BasicNameValuePair> parameters =

 * The extracted text is then converted into a byte array using the specified charset encoding.
 * It also provides a method to retrieve the extracted data as a String from an AccessResultData object.
 *
 * <p>
 * The class handles character encoding issues by attempting to use the specified charset.
 * If the specified charset is invalid, it falls back to UTF-8.
 * </p>
 *
 * <p>

 * It allows setting a default encoding, mapping various encoding names to preferred ones,
 * and normalizing an encoding string to its preferred form or the default if no mapping is found.
 */
public class EncodingHelper {

    /** The default encoding to use when no mapping is found */
    protected String defaultEncoding;

    /** Map of encoding names to their preferred forms */

     */
    public void setFlag(final int flag) {
        this.flag = flag;
    }

    /**
     * Sets the encoding for URL decoding.
     *
     * @param encoding the encoding to set
     */
    public void setEncoding(final String encoding) {
        this.encoding = encoding;
    }

        return charset;
    }

    /**
     * Gets the character encoding used for files.
     *
     * @return the character encoding
     */
    public String getCharset() {
        return charset;
    }

    /**
     * Sets the character encoding used for files.
     *
     * @param charset the character encoding to set
     */
    public void setCharset(final String charset) {

        }
    }

    /**
     * Returns the encoding used for text extraction.
     * @return the encoding
     */
    public String getEncoding() {
        return encoding;
    }

    /**
     * Sets the encoding.
     * @param encoding The encoding to set.
     */
    public void setEncoding(final String encoding) {
        this.encoding = encoding;
    }

    }

    /**
     * Returns the current encoding setting.
     * @return The current encoding.
     */
    public String getEncoding() {
        return encoding;
    }

    /**
     * Sets the encoding for content extraction.
     * @param encoding The encoding to set.
     */
    public void setEncoding(final String encoding) {
        this.encoding = encoding;
    }

    /**

    }

    /**
     * Get the encoding.
     * @return encoding
     */
    public String getEncoding() {
        return encoding;
    }

    /**
     * Set the encoding.
     * @param encoding the encoding to set
     */
    public void setEncoding(final String encoding) {
        this.encoding = encoding;
    }

    /**

    }

    /** An empty string constant. */
    public static final String EMPTY_STRING = "";

    /** The system property name for user dictionary encoding. */
    public static final String USER_DICT_ENCODING = "fess.user.dict.encoding";

    /** The system property name for user dictionary path. */
    public static final String USER_DICT_PATH = "fess.user.dict.path";

    /** The text separator. */

        }

        return normalizeEncoding(encoding);
    }

    /**
     * Normalizes the encoding name using the encoding helper.
     *
     * @param encoding the encoding name to normalize
     * @return the normalized encoding name
     */
    protected String normalizeEncoding(final String encoding) {
        try {