Examples with CompletionSuggestOption co.elastic.clients.elasticsearch.core.search.CompletionSuggestOption used on opensource projects

Example 1 with CompletionSuggestOption

use of co.elastic.clients.elasticsearch.core.search.CompletionSuggestOption in project core-ng-project by neowu.

the class ElasticSearchTypeImpl method complete.

@Override
public List<String> complete(CompleteRequest request) {
    var watch = new StopWatch();
    long esTook = 0;
    String index = request.index == null ? this.index : request.index;
    int options = 0;
    try {
        var suggest = Suggester.of(builder -> {
            builder.text(request.prefix);
            for (String field : request.fields) {
                builder.suggesters(field, s -> s.completion(c -> c.field(field).skipDuplicates(Boolean.TRUE).size(request.limit)));
            }
            return builder;
        });
        var response = elasticSearch.client.search(builder -> builder.index(index).suggest(suggest).source(s -> s.fetch(Boolean.FALSE)), documentClass);
        esTook = response.took() * 1_000_000;
        List<String> suggestions = response.suggest().values().stream().flatMap(Collection::stream).flatMap(suggestion -> suggestion.completion().options().stream()).map(CompletionSuggestOption::text).distinct().collect(Collectors.toList());
        options = suggestions.size();
        return suggestions;
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    } catch (ElasticsearchException e) {
        throw elasticSearch.searchException(e);
    } finally {
        long elapsed = watch.elapsed();
        ActionLogContext.track("elasticsearch", elapsed, options, 0);
        logger.debug("complete, options={}, esTook={}, elapsed={}", options, esTook, elapsed);
        checkSlowOperation(elapsed);
    }
}