Examples with FieldStatsRequest org.elasticsearch.action.fieldstats.FieldStatsRequest used on opensource projects

Example 1 with FieldStatsRequest

use of org.elasticsearch.action.fieldstats.FieldStatsRequest in project elasticsearch by elastic.

the class RestFieldStatsAction method prepareRequest.

@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
    if (request.hasContentOrSourceParam() && request.hasParam("fields")) {
        throw new IllegalArgumentException("can't specify a request body and [fields] request parameter, " + "either specify a request body or the [fields] request parameter");
    }
    final FieldStatsRequest fieldStatsRequest = new FieldStatsRequest();
    fieldStatsRequest.indices(Strings.splitStringByCommaToArray(request.param("index")));
    fieldStatsRequest.indicesOptions(IndicesOptions.fromRequest(request, fieldStatsRequest.indicesOptions()));
    fieldStatsRequest.level(request.param("level", FieldStatsRequest.DEFAULT_LEVEL));
    if (request.hasContentOrSourceParam()) {
        try (XContentParser parser = request.contentOrSourceParamParser()) {
            fieldStatsRequest.source(parser);
        }
    } else {
        fieldStatsRequest.setFields(Strings.splitStringByCommaToArray(request.param("fields")));
    }
    return channel -> client.fieldStats(fieldStatsRequest, new RestBuilderListener<FieldStatsResponse>(channel) {

        @Override
        public RestResponse buildResponse(FieldStatsResponse response, XContentBuilder builder) throws Exception {
            builder.startObject();
            buildBroadcastShardsHeader(builder, request, response);
            builder.startObject("indices");
            for (Map.Entry<String, Map<String, FieldStats>> entry1 : response.getIndicesMergedFieldStats().entrySet()) {
                builder.startObject(entry1.getKey());
                builder.startObject("fields");
                for (Map.Entry<String, FieldStats> entry2 : entry1.getValue().entrySet()) {
                    builder.field(entry2.getKey());
                    entry2.getValue().toXContent(builder, request);
                }
                builder.endObject();
                builder.endObject();
            }
            builder.endObject();
            if (response.getConflicts().size() > 0) {
                builder.startObject("conflicts");
                for (Map.Entry<String, String> entry : response.getConflicts().entrySet()) {
                    builder.field(entry.getKey(), entry.getValue());
                }
                builder.endObject();
            }
            builder.endObject();
            return new BytesRestResponse(RestStatus.OK, builder);
        }
    });
}