How do I retrieve HTTP status code and response body when an RestClientException is thrown?

Question

The methods of RestTemplate such as postForEntity() throw RestClientException. I would like to extract the HTTP status code and respon

Answer 1

private void sendActivity(StatsActivity statsActivity) throws InterruptedException 
{
    LibraryConnectorXapiEditView libraryConnectorXapiEditView = (LibraryConnectorXapiEditView) workerBundle.getConnector();
    
    RestTemplate restTemplate = new RestTemplate();
    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
    Statement statement = libraryConnectorConverter.convertActivityToStatement(statsActivity, workerBundle);
    HttpEntity request = new HttpEntity<>(statement, headers);
    
    try
    {
       String lrsEndPoint = libraryConnectorXapiEditView.getLrsEndPoint() + "/statements";
       ResponseEntity response = restTemplate.exchange(lrsEndPoint, HttpMethod.POST, request, String.class);
       ocnCompletionEventDao.save(this.convertToOcnCompletionEvent(statsActivity, response.getBody(), response.getStatusCodeValue()));
    }
    catch (HttpClientErrorException ex)
    {
      ocnCompletionEventDao.save(this.convertToOcnCompletionEvent(statsActivity, ex.getResponseBodyAsString(), ex.getStatusCode().value()));
      checkResponse(ex, libraryConnectorXapiEditView);  
      if(failedAttempts<3) 
      { 
          sendActivity(statsActivity);
          failedAttempts++;
      }
    }   
}

private void checkResponse(HttpClientErrorException ex, LibraryConnectorXapiEditView libraryConnectorXapiEditView) throws InterruptedException 
{
    int statusCode = ex.getStatusCode().value();
    int retryAfterSeconds = retryAfter(ex.getResponseHeaders());
    
    switch (statusCode)
    {
    case 401: 
        headers = xApiAuthorizationUtils.getHeaders(libraryConnectorXapiEditView);
    case 429:
        if(retryAfterSeconds!=0)
            Thread.sleep(retryAfterSeconds);
    case 422: 
        failedAttempts=3;
    }
 }