protected byte[] engineDigest() {
        final byte[] digest = md5.digest();
        md5.update(opad);
        return md5.digest(digest);
    }

    @Override
    protected int engineDigest(final byte[] buf, final int offset, final int len) {
        final byte[] digest = md5.digest();
        md5.update(opad);
        md5.update(digest);
        try {
            return md5.digest(buf, offset, len);

        final byte[] digest = this.md5.digest();
        this.md5.update(this.opad);
        return this.md5.digest(digest);
    }

    @Override
    protected int engineDigest(final byte[] buf, final int offset, final int len) {
        final byte[] digest = this.md5.digest();
        this.md5.update(this.opad);
        this.md5.update(digest);
        try {
            return this.md5.digest(buf, offset, len);

    public synchronized void insert(final KuromojiItem item) {
        try (KuromojiUpdater updater = new KuromojiUpdater(item)) {
            reload(updater);
        }
    }

    @Override
    public synchronized void update(final KuromojiItem item) {
        try (KuromojiUpdater updater = new KuromojiUpdater(item)) {
            reload(updater);
        }
    }

    @Override

            if (logger.isInfoEnabled()) {
                logger.info("User {} completed successfully: username={}, id={}", isUpdate ? "update" : "create", username, user.getId());
            }
        } catch (final Exception e) {
            logger.warn("Failed to {} user: username={}, id={}, error={}", isUpdate ? "update" : "create", username, user.getId(),
                    e.getMessage(), e);
            throw e;
        }
    }

            final MD4 md4 = new MD4();
            md4.update(password.getBytes(SmbConstants.UNI_ENCODING));
            HMACT64 hmac = new HMACT64(md4.digest());
            hmac.update(user.toUpperCase().getBytes(SmbConstants.UNI_ENCODING));
            hmac.update(domain.toUpperCase().getBytes(SmbConstants.UNI_ENCODING));
            hmac = new HMACT64(hmac.digest());
            hmac.update(challenge);
            hmac.update(clientChallenge);

    }

    /**
     * Updates a document using a custom update request builder.
     *
     * @param id The document ID to update
     * @param builderLambda Consumer function to configure the update request builder
     * @return true if the update was successful, false otherwise
     */

        final byte[] response = new byte[24];
        MessageDigest hmac = Crypto.getHMACT64(passwordHash);
        hmac.update(Strings.getUNIBytes(user.toUpperCase()));
        hmac.update(Strings.getUNIBytes(domain.toUpperCase()));
        hmac = Crypto.getHMACT64(hmac.digest());
        hmac.update(challenge);
        hmac.update(clientChallenge);
        hmac.digest(response, 0, 16);
        System.arraycopy(clientChallenge, 0, response, 16, 8);

        ComponentUtil.getRelatedQueryHelper().update();
    }

    /**
     * Deletes a related query from the database.
     * After deletion, the related query helper is updated to refresh the cache.
     *
     * @param relatedQuery the RelatedQuery entity to delete
     */
    public void delete(final RelatedQuery relatedQuery) {

     * @return the document count
     */
    long getDocumentSize();

    /**
     * Returns the total execution time for index update operations.
     *
     * @return the execution time in milliseconds
     */
    long getExecuteTime();

    /**
     * Commits all pending index update operations to ensure data persistence.
     * This method should be called after all documents have been stored.
     */
    void commit();

        // Verify that createNextIndex completed without exceptions
        // The update alias should now point to the new index
        final String updateAlias = suggester.getIndex() + ".update";
        aliasResponse = client.admin().indices().prepareGetAliases(updateAlias).execute().actionGet();
        assertNotNull("Update alias should exist after createNextIndex", aliasResponse.getAliases());

        // Switch to new index