DefaultReactiveElasticsearchClient handle 5xx error with empty body

Original Pull Request #1713
Closes #1712

(cherry picked from commit 6634d0075ace745e17d34d655e15d21abc0fb786)
Test adapted
This commit is contained in:
Peter-Josef Meisch 2021-03-03 06:25:06 +01:00
parent 82d9cb4cc6
commit 3ca345b216
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2 changed files with 54 additions and 22 deletions

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@ -809,6 +809,9 @@ public class DefaultReactiveElasticsearchClient implements ReactiveElasticsearch
String mediaType = response.headers().contentType().map(MediaType::toString).orElse(XContentType.JSON.mediaType());
return response.body(BodyExtractors.toMono(byte[].class)) //
.switchIfEmpty(Mono.error(
new ElasticsearchStatusException(String.format("%s request to %s returned error code %s and no body.",
request.getMethod(), request.getEndpoint(), statusCode), status)))
.map(bytes -> new String(bytes, StandardCharsets.UTF_8)) //
.flatMap(content -> contentOrError(content, mediaType, status))
.flatMap(unused -> Mono

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@ -1,5 +1,5 @@
/*
* Copyright 2020 the original author or authors.
* Copyright 2020-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -19,23 +19,31 @@ import static org.assertj.core.api.Assertions.*;
import static org.elasticsearch.search.internal.SearchContext.*;
import static org.mockito.Mockito.*;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
import java.net.URI;
import java.util.Optional;
import java.util.function.Function;
import org.elasticsearch.ElasticsearchStatusException;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.client.Request;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.junit.jupiter.api.BeforeEach;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.Spy;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.http.HttpStatus;
import org.springframework.web.reactive.function.client.ClientResponse;
import reactor.test.StepVerifier;
import org.springframework.web.reactive.function.client.WebClient;
import org.springframework.web.util.UriBuilder;
/**
* @author Peter-Josef Meisch
@ -46,29 +54,23 @@ class DefaultReactiveElasticsearchClientTest {
@Mock private HostProvider hostProvider;
@Mock private Function<SearchRequest, Request> searchRequestConverter;
@Spy private RequestCreator requestCreator;
private DefaultReactiveElasticsearchClient client;
@Mock private WebClient webClient;
@BeforeEach
void setUp() {
client = new DefaultReactiveElasticsearchClient(hostProvider, new RequestCreator() {
@Override
public Function<SearchRequest, Request> search() {
return searchRequestConverter;
}
}) {
@Test
void shouldSetAppropriateRequestParametersOnCount() {
when(requestCreator.search()).thenReturn(searchRequestConverter);
SearchRequest searchRequest = new SearchRequest("someindex") //
.source(new SearchSourceBuilder().query(QueryBuilders.matchAllQuery()));
ReactiveElasticsearchClient client = new DefaultReactiveElasticsearchClient(hostProvider, requestCreator) {
@Override
public Mono<ClientResponse> execute(ReactiveElasticsearchClientCallback callback) {
return Mono.empty();
}
};
}
@Test
void shouldSetAppropriateRequestParametersOnCount() {
SearchRequest searchRequest = new SearchRequest("someindex") //
.source(new SearchSourceBuilder().query(QueryBuilders.matchAllQuery()));
client.count(searchRequest).as(StepVerifier::create).verifyComplete();
@ -79,4 +81,31 @@ class DefaultReactiveElasticsearchClientTest {
assertThat(source.trackTotalHitsUpTo()).isEqualTo(TRACK_TOTAL_HITS_ACCURATE);
assertThat(source.fetchSource()).isEqualTo(FetchSourceContext.DO_NOT_FETCH_SOURCE);
}
@Test // #1712
@DisplayName("should throw ElasticsearchStatusException on server 5xx with empty body")
void shouldThrowElasticsearchStatusExceptionOnServer5xxWithEmptyBody() {
when(hostProvider.getActive(any())).thenReturn(Mono.just(webClient));
WebClient.RequestBodyUriSpec requestBodyUriSpec = mock(WebClient.RequestBodyUriSpec.class);
when(requestBodyUriSpec.uri((Function<UriBuilder, URI>) any())).thenReturn(requestBodyUriSpec);
when(requestBodyUriSpec.attribute(any(), any())).thenReturn(requestBodyUriSpec);
when(requestBodyUriSpec.headers(any())).thenReturn(requestBodyUriSpec);
when(webClient.method(any())).thenReturn(requestBodyUriSpec);
ClientResponse clientResponse = mock(ClientResponse.class);
when(clientResponse.statusCode()).thenReturn(HttpStatus.SERVICE_UNAVAILABLE);
ClientResponse.Headers headers = mock(ClientResponse.Headers.class);
when(headers.contentType()).thenReturn(Optional.empty());
when(clientResponse.headers()).thenReturn(headers);
when(clientResponse.body(any())).thenReturn(Mono.empty());
when(requestBodyUriSpec.exchange()).thenReturn(Mono.just(clientResponse));
ReactiveElasticsearchClient client = new DefaultReactiveElasticsearchClient(hostProvider, requestCreator);
client.get(new GetRequest("42")) //
.as(StepVerifier::create) //
.expectError(ElasticsearchStatusException.class) //
.verify(); //
}
}