import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.exception.InvalidAccessTokenException;
import org.codelibs.fess.util.ComponentUtil;

public class AccessTokenHelper {

    protected static final String BEARER = "Bearer";

    protected Random random = new SecureRandom();

    public String generateAccessToken() {

    public void test_getAccessTokenFromRequest_ok0() {
        final String token = accessTokenHelper.generateAccessToken();
        MockletHttpServletRequest req = getMockRequest();
        req.addHeader("Authorization", "Bearer " + token);
        assertEquals(token, accessTokenHelper.getAccessTokenFromRequest(req));
    }

    public void test_getAccessTokenFromRequest_ok1() {
        final String token = accessTokenHelper.generateAccessToken();

                    logger.debug("url: {}", url);
                }
                try (CurlResponse response =
                        Curl.post(url).header("Authorization", "Bearer " + user.getAuthenticationResult().getAccessToken())
                                .header("Accept", "application/json").header("Content-type", "application/json")
                                .body("{\"securityEnabledOnly\":false}").execute()) {

            }
        }
        final HttpServletResponse response = LaResponseUtil.getResponse();
        if (t instanceof final InvalidAccessTokenException e) {
            response.setHeader("WWW-Authenticate", "Bearer error=\"" + e.getType() + "\"");
            writeJsonResponse(HttpServletResponse.SC_UNAUTHORIZED, message);
        } else {
            writeJsonResponse(status, message);
        }
    }

        Objects.requireNonNull(request, "request");
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (reader == null && inputStream == null) {
            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {
            InputSource source = null;

        Objects.requireNonNull(request, "request");
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (reader == null && inputStream == null) {
            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {
            InputSource source = null;

            return readText(URLUtil.toFile(url), encoding);
        }
        final InputStream is = URLUtil.openStream(url);
        try {
            final Reader reader = ReaderUtil.create(new BufferedInputStream(is, DEFAULT_BUF_SIZE), encoding);
            return read(reader, DEFAULT_BUF_SIZE);
        } finally {
            CloseableUtil.close(is);
        }
    }

    /**
     * 指定のエンコーディングでファイルからテキストを読み込みます。

        Path path = request.getPath();
        URL url = request.getURL();
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (path == null && url == null && reader == null && inputStream == null) {
            throw new IllegalArgumentException("path, url, reader or inputStream must be non null");
        }
        try {
            InputSource source = null;

        Path path = request.getPath();
        URL url = request.getURL();
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (path == null && url == null && reader == null && inputStream == null) {
            throw new IllegalArgumentException("path, url, reader or inputStream must be non null");
        }
        try {
            InputSource source = null;

    Metadata read(File input, Map<String, ?> options) throws IOException, MetadataParseException;

    /**
     * Reads the metadata from the specified character reader. The reader will be automatically closed before the method
     * returns.
     *
     * @param input The reader to deserialize the metadata from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.