Elasticsearch SearchResponse序列化

Question

Elasticsearch searchResponse具有聚集反序列化将导致问题。它应该使用特殊的聚集键（例如“ sterms＃key”）对searchResponse进行序列化，我想问一下：

• 是否存在一种通用的方法来对searchResponse进行序列化和反序列化？
• 是否有一种通用的方法可以使用特殊键对searchResponse进行查询？

代码如下：

@Test
public void testSearchResponse() throws Exception {
    String string = "{\"took\":16,\"timed_out\":false,\"_shards\":{\"total\":5,\"successful\":5,\"skipped\":0,\"failed\":0},\"_clusters\":{\"total\":0,\"successful\":0,\"skipped\":0},\"hits\":{\"total\":2,\"max_score\":1.6739764,\"hits\":[{\"_index\":\"testofmysql_2018_08_09_17_48_53\",\"_type\":\"_doc\",\"_id\":\"8\",\"_score\":1.6739764,\"_source\":{\"value\":\"888\",\"key\":\"8\"}},{\"_index\":\"testofmysql_2018_08_09_17_48_53\",\"_type\":\"_doc\",\"_id\":\"9\",\"_score\":1.1631508,\"_source\":{\"value\":\"999\",\"key\":\"9\"}}]},\"aggregations\":{\"sterms#key\":{\"doc_count_error_upper_bound\":0,\"sum_other_doc_count\":0,\"buckets\":[{\"key\":8,\"doc_count\":1},{\"key\":9,\"doc_count\":1}]}}}";
    XContentParser requestContentParser = JsonXContent.jsonXContent
            .createParser(namedXContentRegistry, DeprecationHandler.THROW_UNSUPPORTED_OPERATION, string);
    SearchResponse searchResponse = SearchResponse.fromXContent(requestContentParser);
    System.out.println(searchResponse);
}

private final NamedXContentRegistry namedXContentRegistry = new NamedXContentRegistry(getNamedXContents());

protected List<NamedXContentRegistry.Entry> getNamedXContents() {
    return namedXContents;
}

private static final List<NamedXContentRegistry.Entry> namedXContents;

static {
    Map<String, ContextParser<Object, ? extends Aggregation>> map = new HashMap<>();
    map.put(CardinalityAggregationBuilder.NAME, (p, c) -> ParsedCardinality.fromXContent(p, (String) c));
    map.put(InternalHDRPercentiles.NAME, (p, c) -> ParsedHDRPercentiles.fromXContent(p, (String) c));
    map.put(InternalHDRPercentileRanks.NAME, (p, c) -> ParsedHDRPercentileRanks.fromXContent(p, (String) c));
    map.put(InternalTDigestPercentiles.NAME, (p, c) -> ParsedTDigestPercentiles.fromXContent(p, (String) c));
    map.put(InternalTDigestPercentileRanks.NAME, (p, c) -> ParsedTDigestPercentileRanks.fromXContent(p, (String) c));
    map.put(PercentilesBucketPipelineAggregationBuilder.NAME, (p, c) -> ParsedPercentilesBucket.fromXContent(p, (String) c));
    map.put(MinAggregationBuilder.NAME, (p, c) -> ParsedMin.fromXContent(p, (String) c));
    map.put(MaxAggregationBuilder.NAME, (p, c) -> ParsedMax.fromXContent(p, (String) c));
    map.put(SumAggregationBuilder.NAME, (p, c) -> ParsedSum.fromXContent(p, (String) c));
    map.put(AvgAggregationBuilder.NAME, (p, c) -> ParsedAvg.fromXContent(p, (String) c));
    map.put(ValueCountAggregationBuilder.NAME, (p, c) -> ParsedValueCount.fromXContent(p, (String) c));
    map.put(InternalSimpleValue.NAME, (p, c) -> ParsedSimpleValue.fromXContent(p, (String) c));
    map.put(DerivativePipelineAggregationBuilder.NAME, (p, c) -> ParsedDerivative.fromXContent(p, (String) c));
    map.put(InternalBucketMetricValue.NAME, (p, c) -> ParsedBucketMetricValue.fromXContent(p, (String) c));
    map.put(StatsAggregationBuilder.NAME, (p, c) -> ParsedStats.fromXContent(p, (String) c));
    map.put(StatsBucketPipelineAggregationBuilder.NAME, (p, c) -> ParsedStatsBucket.fromXContent(p, (String) c));
    map.put(ExtendedStatsAggregationBuilder.NAME, (p, c) -> ParsedExtendedStats.fromXContent(p, (String) c));
    map.put(ExtendedStatsBucketPipelineAggregationBuilder.NAME, (p, c) -> ParsedExtendedStatsBucket.fromXContent(p, (String) c));
    map.put(GeoBoundsAggregationBuilder.NAME, (p, c) -> ParsedGeoBounds.fromXContent(p, (String) c));
    map.put(GeoCentroidAggregationBuilder.NAME, (p, c) -> ParsedGeoCentroid.fromXContent(p, (String) c));
    map.put(HistogramAggregationBuilder.NAME, (p, c) -> ParsedHistogram.fromXContent(p, (String) c));
    map.put(DateHistogramAggregationBuilder.NAME, (p, c) -> ParsedDateHistogram.fromXContent(p, (String) c));
    map.put(StringTerms.NAME, (p, c) -> ParsedStringTerms.fromXContent(p, (String) c));
    map.put(LongTerms.NAME, (p, c) -> ParsedLongTerms.fromXContent(p, (String) c));
    map.put(DoubleTerms.NAME, (p, c) -> ParsedDoubleTerms.fromXContent(p, (String) c));
    map.put(MissingAggregationBuilder.NAME, (p, c) -> ParsedMissing.fromXContent(p, (String) c));
    map.put(NestedAggregationBuilder.NAME, (p, c) -> ParsedNested.fromXContent(p, (String) c));
    map.put(ReverseNestedAggregationBuilder.NAME, (p, c) -> ParsedReverseNested.fromXContent(p, (String) c));
    map.put(GlobalAggregationBuilder.NAME, (p, c) -> ParsedGlobal.fromXContent(p, (String) c));
    map.put(FilterAggregationBuilder.NAME, (p, c) -> ParsedFilter.fromXContent(p, (String) c));
    map.put(InternalSampler.PARSER_NAME, (p, c) -> ParsedSampler.fromXContent(p, (String) c));
    map.put(GeoGridAggregationBuilder.NAME, (p, c) -> ParsedGeoHashGrid.fromXContent(p, (String) c));
    map.put(RangeAggregationBuilder.NAME, (p, c) -> ParsedRange.fromXContent(p, (String) c));
    map.put(DateRangeAggregationBuilder.NAME, (p, c) -> ParsedDateRange.fromXContent(p, (String) c));
    map.put(GeoDistanceAggregationBuilder.NAME, (p, c) -> ParsedGeoDistance.fromXContent(p, (String) c));
    map.put(FiltersAggregationBuilder.NAME, (p, c) -> ParsedFilters.fromXContent(p, (String) c));
    map.put(AdjacencyMatrixAggregationBuilder.NAME, (p, c) -> ParsedAdjacencyMatrix.fromXContent(p, (String) c));
    map.put(SignificantLongTerms.NAME, (p, c) -> ParsedSignificantLongTerms.fromXContent(p, (String) c));
    map.put(SignificantStringTerms.NAME, (p, c) -> ParsedSignificantStringTerms.fromXContent(p, (String) c));
    map.put(ScriptedMetricAggregationBuilder.NAME, (p, c) -> ParsedScriptedMetric.fromXContent(p, (String) c));
    map.put(IpRangeAggregationBuilder.NAME, (p, c) -> ParsedBinaryRange.fromXContent(p, (String) c));
    map.put(TopHitsAggregationBuilder.NAME, (p, c) -> ParsedTopHits.fromXContent(p, (String) c));
    map.put(CompositeAggregationBuilder.NAME, (p, c) -> ParsedComposite.fromXContent(p, (String) c));

    namedXContents = map.entrySet().stream()
            .map(entry -> new NamedXContentRegistry.Entry(Aggregation.class, new ParseField(entry.getKey()), entry.getValue()))
            .collect(Collectors.toList());
    SearchModule searchModule = new SearchModule(Settings.EMPTY, false, Lists.newArrayList());
    namedXContents.addAll(searchModule.getNamedXContents());
}