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() {

  }

  // Returns a Readable that is *not* a Reader.
  private static Readable getChunkedReadable(String input, int chunk) {
    final Reader reader = getChunkedReader(input, chunk);
    return new Readable() {
      @Override
      public int read(CharBuffer cbuf) throws IOException {
        return reader.read(cbuf);
      }
    };
  }

  private static Reader getChunkedReader(String input, final int chunk) {

        return request(Method.GET, path).header("Content-Type", "application/json");
    }

    public CurlRequest post(final String path) {
        return request(Method.POST, path).header("Content-Type", "application/json");
    }

    public CurlRequest put(final String path) {
        return request(Method.PUT, path).header("Content-Type", "application/json");
    }

     *
     * @param reader
     *            リーダー
     * @return ラップされたリーダー
     */
    protected static Reader wrap(final Reader reader) {
        if (reader instanceof BufferedReader) {
            return reader;
        }
        if (reader instanceof StringReader) {
            return reader;
        }
        return new BufferedReader(reader, DEFAULT_BUF_SIZE);
    }

        // of
        // InputStream.read(byte[], int, int)
        // See https://github.com/google/guava/issues/3542
        Reader reader = new StringReader(cannotDecode);
        InputStream decodingStream = encoding.decodingStream(reader);
        try {
          ByteStreams.exhaust(decodingStream);
          fail("Expected DecodingException");
        } catch (DecodingException expected) {

        return getHeaderFields0();
    }

    public int getHeaderFieldInt(String header, int def) {
        try {
            handshake();
        } catch (IOException ex) { }
        return connection.getHeaderFieldInt(header, def);
    }

    public long getHeaderFieldDate(String header, long def) {
        try {
            handshake();
        } catch (IOException ex) { }

    /**
     * Test method for
     * {@link org.codelibs.core.io.PropertiesUtil#load(java.util.Properties, java.io.Reader)}
     * .
     */
    @Test
    public void testLoadPropertiesReaderReaderNull() {
        exception.expect(NullArgumentException.class);
        exception.expectMessage(is("[ECL0008]argument[reader] is null."));
        final InputStreamReader inputStreamReader = null;

    }

    @Override
    protected String asEsIndex() {
        return "fess_config.request_header";
    }

    @Override
    public String asEsIndexType() {
        return "request_header";
    }

    @Override
    public String asEsSearchType() {
        return "request_header";
    }

    @Override
    public RequestHeaderDbm asDBMeta() {
        return RequestHeaderDbm.getInstance();

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.List;
import junit.framework.TestCase;

/**
 * @param <S> the source or sink type

        final String encodedName = URLEncoder.encode(name, Constants.UTF_8_CHARSET).replace("+", "%20");
        response.header("Content-Disposition", "attachment; filename=\"" + name + "\"; filename*=utf-8''" + encodedName);
        response.header("Pragma", "no-cache");
        response.header("Cache-Control", "no-cache");
        response.header("Expires", "Thu, 01 Dec 1994 16:00:00 GMT");
        response.contentTypeOctetStream();