Spring retry example

IIBClient.java

package mn.astvision.smartcar.iib.client;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import jakarta.annotation.PostConstruct;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import mn.astvision.smartcar.iib.request.calculate.IIBInsuranceCalculateRequest;
import mn.astvision.smartcar.iib.response.calculate.IIBInsuranceCalculateData;
import mn.astvision.smartcar.iib.response.calculate.driver.IIBDriverInsuranceCalculateResponse;
import mn.astvision.smartcar.iib.response.create.IIBInsuranceCreateResponse;
import mn.astvision.smartcar.iib.response.invoice.IIBInvoiceData;
import mn.astvision.smartcar.model.insurance.iib.InsuranceServiceDurationData;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.stereotype.Component;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.RestTemplate;

import java.util.ArrayList;
import java.util.List;

/**
 * IIB-н API-с мэдээлэл дуудах клиент
 *
 * @author digz6666
 */
@Slf4j
@Component
@RequiredArgsConstructor
public class IIBClient {

    @Value("${iibApi.baseUrl}")
    private String baseUrl;

    private final IIBTokenClient iibTokenClient;
    private final ObjectMapper objectMapper;

    private RestTemplate restTemplate;

    @PostConstruct
    public void setup() {
        restTemplate = new RestTemplate();
        List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
        messageConverters.add(new StringHttpMessageConverter());
        messageConverters.add(new MappingJackson2HttpMessageConverter());
        restTemplate.setMessageConverters(messageConverters);
    }

    public IIBDriverInsuranceCalculateResponse calculateDriver(IIBInsuranceCalculateRequest calculateRequest)
            throws HttpClientErrorException {
        HttpEntity<?> requestEntity = new HttpEntity<>(calculateRequest, generateHeader());

        ResponseEntity<IIBDriverInsuranceCalculateResponse> calculateResponse = restTemplate.exchange(
                baseUrl + "/orgList/resp/{serviceId}/2",
                HttpMethod.POST,
                requestEntity,
                IIBDriverInsuranceCalculateResponse.class,
                calculateRequest.getServiceId());

        return calculateResponse.getBody();
    }
}

IIBService.java

package mn.astvision.smartcar.iib.service;

import com.fasterxml.jackson.core.JsonProcessingException;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import mn.astvision.smartcar.iib.client.IIBClient;
import mn.astvision.smartcar.iib.client.IIBTokenClient;
import mn.astvision.smartcar.iib.exception.IIBException;
import mn.astvision.smartcar.iib.request.calculate.IIBInsuranceCalculateRequest;
import mn.astvision.smartcar.iib.response.calculate.IIBInsuranceCalculateData;
import mn.astvision.smartcar.iib.response.calculate.driver.IIBDriverInsuranceCalculateResponse;
import mn.astvision.smartcar.iib.response.create.IIBInsuranceCreateResponse;
import org.springframework.http.HttpStatus;
import org.springframework.retry.annotation.Retryable;
import org.springframework.stereotype.Service;
import org.springframework.web.client.HttpClientErrorException;

import java.util.List;

@Slf4j
@Service
@RequiredArgsConstructor
public class IIBService {

    private final IIBClient iibClient;
    private final IIBTokenClient iibTokenClient;

    @Retryable(
            retryFor = HttpClientErrorException.class
    )
    public IIBDriverInsuranceCalculateResponse calculateDriver(IIBInsuranceCalculateRequest calculateRequest)
            throws IIBException {
        try {
            IIBDriverInsuranceCalculateResponse calculateResponse = iibClient.calculateDriver(calculateRequest);
            if (calculateResponse.getCode() == 0 &&
                calculateResponse.getMessage().equals("Хандалт буруу ! Token дахин авна уу !"))
                throw new HttpClientErrorException(HttpStatus.UNAUTHORIZED);

            return calculateResponse;
        } catch (HttpClientErrorException e) {
            if (e.getStatusCode() == HttpStatus.UNAUTHORIZED)
                iibTokenClient.generateToken();
            throw e;
        }
    }
}

RetryConfig.java

package mn.astvision.smartcar.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.retry.annotation.EnableRetry;

@Configuration
@EnableRetry
public class RetryConfig {
}

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