.setLevel(Level.ERROR)
                .setMessage(new SimpleMessage("test message 3"))
                .build();

        LogEvent result1 = policy.rewrite(event1);
        LogEvent result2 = policy.rewrite(event2);
        LogEvent result3 = policy.rewrite(event3);

        assertEquals(Level.WARN, result1.getLevel());
        assertEquals(Level.WARN, result2.getLevel());

        this.loggerNames = loggerNames;
    }

    /**
     * Rewrites log events by converting ERROR level to WARN level for matching loggers.
     *
     * @param event the log event to potentially rewrite
     * @return the original event or a new event with WARN level if conversion applied
     */
    @Override
    public LogEvent rewrite(final LogEvent event) {
        final String loggerName = event.getLoggerName();

        return queryBuilder.getName();
    }

    /**
     * Rewrites the query using the provided rewrite context.
     *
     * @param queryShardContext the query rewrite context
     * @return the rewritten query builder
     * @throws IOException if an I/O error occurs during rewriting
     */
    @Override
    public QueryBuilder rewrite(final QueryRewriteContext queryShardContext) throws IOException {

        SearchHelper.SearchRequestParamsRewriter rewriter1 = p -> {
            ((MockSearchRequestParams) p).setQuery("rewritten1");
            return p;
        };
        SearchHelper.SearchRequestParamsRewriter rewriter2 = p -> {
            ((MockSearchRequestParams) p).setQuery("rewritten2");
            return p;
        };

        searchHelper.addRewriter(rewriter1);
        searchHelper.addRewriter(rewriter2);

            newParams = rewriter.rewrite(newParams);
        }
        return newParams;
    }

    /**
     * Adds a search request parameter rewriter to the list of active rewriters.
     *
     * @param rewriter The parameter rewriter to add
     */
    public void addRewriter(final SearchRequestParamsRewriter rewriter) {

    // the `keys` and `values` arrays do not need to change. But because the "short hash" now has a
    // different number of bits, we must rewrite each element of `entries` so that its contribution
    // to the full hashcode reflects the change, and so that its `next` link corresponds to the new
    // linked list of entries with the new short hash.

    /** Name of the search engine cluster */
    protected String clusterName = "fesen";

    /** List of rewrite rules for document settings */
    protected final List<UnaryOperator<String>> docSettingRewriteRuleList = new ArrayList<>();

    /** List of rewrite rules for document mappings */
    protected final List<UnaryOperator<String>> docMappingRewriteRuleList = new ArrayList<>();

    // the `keys` and `values` arrays do not need to change. But because the "short hash" now has a
    // different number of bits, we must rewrite each element of `entries` so that its contribution
    // to the full hashcode reflects the change, and so that its `next` link corresponds to the new
    // linked list of entries with the new short hash.

      bytesLeft -= toWrite
      delegate.write(source, toWrite)
    }
  }

    object : ForwardingSink(sink) {
      @Throws(IOException::class)
      override fun write(
        source: Buffer,
        byteCount: Long,
      ) {
        val bytes = source.readByteString(byteCount)
        delegate.write(
          Buffer()
            .write(bytes.toAsciiUppercase()),
          byteCount,
        )
      }
    }