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RatingServiceClient

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Pragya Keshap answered on February 16, 2023 Popularity 1/10 Helpfulness 1/10

answer RatingServiceClient

RatingServiceClient

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This product-service acts as a client for the rating-service.

@TimeLimiter indicates that resilience4j will apply timeout for this method execution.

name=ratingService indicates that resilience4j will use the configuration for ratingService in the yaml.

fallbackMethod is used when the main method fails for some reason.

@Service
public class RatingServiceClient {

    private final RestTemplate restTemplate = new RestTemplate();

    @Value("${rating.service.endpoint}")
    private String ratingService;

    @TimeLimiter(name = "ratingService", fallbackMethod = "getDefault")
    public CompletionStage<ProductRatingDto> getProductRatingDto(int productId){
        Supplier<ProductRatingDto> supplier = () ->
            this.restTemplate.getForEntity(this.ratingService + productId, ProductRatingDto.class)
                    .getBody();
        return CompletableFuture.supplyAsync(supplier);
    }

    private CompletionStage<ProductRatingDto> getDefault(int productId, Throwable throwable){
        return CompletableFuture.supplyAsync(() -> ProductRatingDto.of(0, Collections.emptyList()));
    }

}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java

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Contributed on Feb 16 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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