return this;
        }

        public XmlWriterRequestBuilder<T> content(T content) {
            this.content = content;
            return this;
        }

        public XmlWriterRequest<T> build() {
            return new DefaultXmlWriterRequest<>(path, outputStream, writer, content);
        }

        private static class DefaultXmlWriterRequest<T> implements XmlWriterRequest<T> {

            if (writer != null) {
                new MavenStaxWriter().write(writer, content);
            } else if (outputStream != null) {
                new MavenStaxWriter().write(outputStream, content);
            } else {
                try (OutputStream os = Files.newOutputStream(path)) {
                    new MavenStaxWriter().write(outputStream, content);
                }
            }
        } catch (Exception e) {

            if (writer != null) {
                new MavenStaxWriter().write(writer, content);
            } else if (outputStream != null) {
                new MavenStaxWriter().write(outputStream, content);
            } else {
                try (OutputStream os = Files.newOutputStream(path)) {
                    new MavenStaxWriter().write(outputStream, content);
                }
            }
        } catch (Exception e) {

     *
     * @param content
     */
    void debug(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the <b>debug</b> error level.<br>
     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content
     * @param error
     */
    void debug(CharSequence content, Throwable error);

    /**

        assertQueryBuilder("content", "test", MatchPhraseQueryBuilder.class);
        assertQueryBuilder("content", "a", MatchPhraseQueryBuilder.class);
        assertQueryBuilder("content", "あ", PrefixQueryBuilder.class);
        assertQueryBuilder("content", "ああ", MatchPhraseQueryBuilder.class);
        assertQueryBuilder("content", "ア", PrefixQueryBuilder.class);
        assertQueryBuilder("content", "アア", MatchPhraseQueryBuilder.class);

    /** The key of the configuration. e.g. important_content */
    String INDEX_FIELD_important_content = "index.field.important_content";

    /** The key of the configuration. e.g. content */
    String INDEX_FIELD_CONTENT = "index.field.content";

    /** The key of the configuration. e.g. content_minhash_bits */
    String INDEX_FIELD_content_minhash_bits = "index.field.content_minhash_bits";

        }
    }

    @Override
    public void write(XmlWriterRequest<PersistedToolchains> request) throws XmlWriterException {
        nonNull(request, "request");
        PersistedToolchains content = Objects.requireNonNull(request.getContent(), "content");
        OutputStream outputStream = request.getOutputStream();
        Writer writer = request.getWriter();
        if (writer == null && outputStream == null) {

        }
    }

    @Override
    public void write(XmlWriterRequest<PersistedToolchains> request) throws XmlWriterException {
        nonNull(request, "request");
        PersistedToolchains content = Objects.requireNonNull(request.getContent(), "content");
        OutputStream outputStream = request.getOutputStream();
        Writer writer = request.getWriter();
        if (writer == null && outputStream == null) {

        languageHelper.langFields = new String[] { "title", "content" };
    }

    public void test_createScript() {
        Map<String, Object> doc = new HashMap<>();
        assertEquals("aaa", languageHelper.createScript(doc, "aaa").getIdOrCode());

        doc.put("lang", "ja");
        assertEquals("aaa;ctx._source.title_ja=ctx._source.title;ctx._source.content_ja=ctx._source.content",

        if (content == null) {
            return StringUtil.EMPTY; // empty
        }

        String subContent;
        if (content.length() < maxWidth * 2) {
            subContent = content;
        } else {
            subContent = content.substring(0, maxWidth * 2);
        }