} else if (value instanceof Boolean) {
            json.append(value);
        } else {
            json.append("\"").append(escapeJson(String.valueOf(value))).append("\"");
        }
    }

    private String escapeJson(final String text) {
        if (text == null || text.isEmpty()) {
            return "";
        }
        final StringBuilder sb = new StringBuilder(text.length());

            exception.printStackTrace(writer);
            writer.flush();
            append(buf, "exception", () -> StringEscapeUtils.escapeJson(new String(baos.toByteArray(), Constants.CHARSET_UTF_8)));
        } catch (final IOException e) {
            append(buf, "exception", () -> StringEscapeUtils.escapeJson(e.getMessage()));
        }
        return buf;
    }

        buf.append("{\"text\":\"");
        buf.append(LF);
        buf.append(StringEscapeUtils.escapeJson(discloser.getSavedSubject().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```");
        buf.append(LF).append(StringEscapeUtils.escapeJson(discloser.getSavedPlainText().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```\"}");
        return buf.toString();
    }

            final String hotThreads = response.getNodesMap().entrySet().stream().map(e -> {
                final StringBuilder tempBuf = new StringBuilder();
                append(tempBuf, StringEscapeUtils.escapeJson(e.getKey()), () -> StringEscapeUtils.escapeJson(e.getValue().getHotThreads()));
                return tempBuf.toString();
            }).collect(Collectors.joining(","));
            buf.append(hotThreads).append(',');

        buf.append("\"pools\":{");
        buf.append(bufferPools.stream().map(p -> {
            final StringBuilder b = new StringBuilder();
            b.append('"').append(StringEscapeUtils.escapeJson(p.getName())).append("\":{");
            append(b, "count", () -> p.getCount()).append(',');
            append(b, "used", () -> p.getUsed().getBytes()).append(',');

                            try {
                                writer.write("{\"index\":{\"_index\":\"" + index + "\",\"_id\":\""
                                        + StringEscapeUtils.escapeJson(hit.getId()) + "\"}}\n");
                                writer.write(hit.getSourceAsString());
                                writer.write("\n");
                            } catch (final IOException e) {