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Exception handling with Java CompletableFuture in spring boot

Deepika Sahu answered on December 29, 2022 Popularity 1/10 Helpfulness 1/10

answer Exception handling with Java CompletableFuture in spring boot

Exception handling with Java CompletableFuture in spring boot

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public CustomerResponse getCustomerByIdWithCompleteOnTimeout(Integer customerId) {
    log.info("Getting customer by id {} with completeOnTimeout.", customerId);
    int timeOut = getTimeOut(customerId);
    log.info("CF timeout is {}", timeOut);
    CompletableFuture<CustomerResponse> customerResponseCF = CompletableFuture.supplyAsync(
            () -> CustomerResponse.valueOf(customerClient.getCustomerById(customerId)));
    CompletableFuture<Set<PurchaseTransactionResponse>> purchaseTransactionsCF = CompletableFuture.supplyAsync(
                    () -> purchaseTransactionClient
                            .getPurchaseTransactionsByCustomerId(customerId, false)
                            .stream()
                            .map(PurchaseTransactionResponse::valueOf)
                            .collect(Collectors.toSet()))
            .completeOnTimeout(Set.of(), timeOut, TimeUnit.SECONDS);
    CompletableFuture<CustomerResponse> customerResponseCompletableFuture = customerResponseCF
            .thenCombine(purchaseTransactionsCF, (customerResponse, purchaseTransactions) -> {
                customerResponse.setPurchaseTransactions(purchaseTransactions);
                return customerResponse;
            });
    CustomerResponse response = customerResponseCompletableFuture.join();
    return response;
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: completable-future exception-handling java spring-boot

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Contributed on Dec 29 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Exception handling with Java CompletableFuture in spring boot

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