'Elasticsearch query serialization returns empty string

I want to extract the JSON representation of an Elasticsearch Query, which was built by the Java client API (Java API Client 8.0.0). The following code shows my try:

    Query x1 = new Query(new TermQuery.Builder().field("f1").value(v -> v.stringValue("val1")).build());
    Query x2 = new Query(new TermQuery.Builder().field("f2").value(v -> v.stringValue("val2")).build());
    Query query = new Query(new BoolQuery.Builder().must(List.of(x1, x2)).build());

    try (final var out = new ByteArrayOutputStream()) {
        final JsonGenerator generator = Json.createGenerator(out);
        query.serialize(generator, new JacksonJsonpMapper());
        return out.toString(StandardCharsets.UTF_8);
    }

I'm using the org.glassfish.jakarta-json:2.0.1 package to provide the JsonGenerator implementation.

The returned string is empty. What am I doing wrong here?

javajson


Solution 1:[1]

It's a little late but if anyone is still looking, you need to close the JsonGenerator and then you will have the JSON output.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 jsaulou

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