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Librairie commune pour les modules MS Clients

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package com.payu.common.client.handler;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.payu.common.client.error.ApiClientError;
import com.payu.common.client.exception.IntermoduleException;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import lombok.NoArgsConstructor;
import org.springframework.http.HttpStatus;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.util.ObjectUtils;
import org.springframework.web.client.UnknownHttpStatusCodeException;

/**
 * Handler permettant de generer les erreurs levees aux niveau des clients restTemplate des modules
 */
@NoArgsConstructor
public class IntermoduleRestTemplateResponseErrorHandler extends DefaultResponseErrorHandler {
  private static final int BODY_MAX_CHARS = 200;

  @Override
  public boolean hasError(ClientHttpResponse response) throws IOException {
    HttpStatus statusCode = (HttpStatus) response.getStatusCode();
    return (statusCode.is5xxServerError() || statusCode.is4xxClientError());
  }

  @Override
  public void handleError(ClientHttpResponse response) throws IOException {
    HttpStatus statusCode = HttpStatus.resolve(response.getRawStatusCode());
    String errorMessage;
    if (statusCode == null) {
      throw new UnknownHttpStatusCodeException(
          "Status HTTP inconnu",
          response.getRawStatusCode(),
          response.getStatusText(),
          response.getHeaders(),
          getResponseBody(response),
          getCharset(response));
    }
    ApiClientError apiClientError =
        ApiClientError.builder().message(getApiErrorMessage(response)).status(statusCode).build();
    try {
      errorMessage = getErrorMessage(response.getStatusText(), apiClientError);
    } catch (Exception exception) {
      errorMessage = apiClientError.getMessage();
    }
    throw new IntermoduleException(errorMessage, apiClientError);
  }

  protected String getApiErrorMessage(ClientHttpResponse response) throws IOException {
    if (ObjectUtils.isEmpty(response.getBody())) {
      return "[no body]";
    }
    return new String(getResponseBody(response), StandardCharsets.UTF_8);
  }

  /**
   * @param statusText status text de la response
   * @param apiClientError Objet apiClientEror
   * @return le message d'erreur
   * @throws JsonProcessingException
   */
  protected String getErrorMessage(String statusText, ApiClientError apiClientError)
      throws JsonProcessingException {
    Map mapMessageErreur =
        new ObjectMapper().readValue(apiClientError.getMessage(), Map.class);
    return statusText
        .concat(" - CorrelationId : ")
        .concat(mapMessageErreur.get("correlationId"))
        .concat("- ErrorMessage : ")
        .concat(mapMessageErreur.get("message"));
  }
}