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Stripe Java Bindings
There is a newer version: 28.2.0
// Generated by delombok at Wed Jun 30 19:13:16 EDT 2021
package com.stripe.net;

import static java.util.Objects.requireNonNull;
import java.time.Instant;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Optional;
import lombok.experimental.NonFinal;

/**
 * Common interface representing an HTTP response from Stripe.
 */
abstract class AbstractStripeResponse {
  /**
   * The HTTP status code of the response.
   */
  int code;
  /**
   * The HTTP headers of the response.
   */
  HttpHeaders headers;
  /**
   * The body of the response.
   */
  T body;

  public final int code() {
    return this.code;
  }

  public final HttpHeaders headers() {
    return this.headers;
  }

  public final T body() {
    return this.body;
  }

  /**
   * Number of times the request was retried. Used for internal tests only.
   */
  @NonFinal
  int numRetries;

  /**
   * Gets the date of the request, as returned by Stripe.
   *
   * @return the date of the request, as returned by Stripe
   */
  public Instant date() {
    Optional dateStr = this.headers.firstValue("Date");
    if (!dateStr.isPresent()) {
      return null;
    }
    return ZonedDateTime.parse(dateStr.get(), DateTimeFormatter.RFC_1123_DATE_TIME).toInstant();
  }

  /**
   * Gets the idempotency key of the request, as returned by Stripe.
   *
   * @return the idempotency key of the request, as returned by Stripe
   */
  public String idempotencyKey() {
    return this.headers.firstValue("Idempotency-Key").orElse(null);
  }

  /**
   * Gets the ID of the request, as returned by Stripe.
   *
   * @return the ID of the request, as returned by Stripe
   */
  public String requestId() {
    return this.headers.firstValue("Request-Id").orElse(null);
  }

  protected AbstractStripeResponse(int code, HttpHeaders headers, T body) {
    requireNonNull(headers);
    requireNonNull(body);
    this.code = code;
    this.headers = headers;
    this.body = body;
  }

  /**
   * Number of times the request was retried. Used for internal tests only.
   */
  @java.lang.SuppressWarnings("all")
  @lombok.Generated
  int numRetries() {
    return this.numRetries;
  }

  /**
   * Number of times the request was retried. Used for internal tests only.
   * @return {@code this}.
   */
  @java.lang.SuppressWarnings("all")
  @lombok.Generated
  AbstractStripeResponse numRetries(final int numRetries) {
    this.numRetries = numRetries;
    return this;
  }
}