¶Ô±ÈÐÂÎļþ |
| | |
| | | /* |
| | | * Copyright (c) 2018-2028, DreamLu All rights reserved. |
| | | * |
| | | * Redistribution and use in source and binary forms, with or without |
| | | * modification, are permitted provided that the following conditions are met: |
| | | * |
| | | * Redistributions of source code must retain the above copyright notice, |
| | | * this list of conditions and the following disclaimer. |
| | | * Redistributions in binary form must reproduce the above copyright |
| | | * notice, this list of conditions and the following disclaimer in the |
| | | * documentation and/or other materials provided with the distribution. |
| | | * Neither the name of the dreamlu.net developer nor the names of its |
| | | * contributors may be used to endorse or promote products derived from |
| | | * this software without specific prior written permission. |
| | | * Author: DreamLu 墿¥æ¢¦ (596392912@qq.com) |
| | | */ |
| | | package org.springblade.core.http; |
| | | |
| | | import lombok.RequiredArgsConstructor; |
| | | import okhttp3.Interceptor; |
| | | import okhttp3.Request; |
| | | import okhttp3.Response; |
| | | import okhttp3.ResponseBody; |
| | | import org.springframework.retry.backoff.FixedBackOffPolicy; |
| | | import org.springframework.retry.policy.SimpleRetryPolicy; |
| | | import org.springframework.retry.support.RetryTemplate; |
| | | |
| | | import java.io.IOException; |
| | | import java.util.function.Predicate; |
| | | |
| | | /** |
| | | * éè¯æ¦æªå¨ï¼åºå¯¹ä»£çé®é¢ |
| | | * |
| | | * @author L.cm |
| | | */ |
| | | @RequiredArgsConstructor |
| | | public class RetryInterceptor implements Interceptor { |
| | | private final RetryPolicy retryPolicy; |
| | | |
| | | @Override |
| | | public Response intercept(Chain chain) throws IOException { |
| | | Request request = chain.request(); |
| | | RetryTemplate template = createRetryTemplate(retryPolicy); |
| | | return template.execute(context -> { |
| | | Response response = chain.proceed(request); |
| | | // ç»æéæ ¡éª |
| | | Predicate<ResponseSpec> respPredicate = retryPolicy.getRespPredicate(); |
| | | if (respPredicate == null) { |
| | | return response; |
| | | } |
| | | // copy ä¸ä»½ body |
| | | ResponseBody body = response.peekBody(Long.MAX_VALUE); |
| | | try (HttpResponse httpResponse = new HttpResponse(response)) { |
| | | if (respPredicate.test(httpResponse)) { |
| | | throw new IOException("Http Retry ResponsePredicate test Failure."); |
| | | } |
| | | } |
| | | return response.newBuilder().body(body).build(); |
| | | }); |
| | | } |
| | | |
| | | private static RetryTemplate createRetryTemplate(RetryPolicy policy) { |
| | | RetryTemplate template = new RetryTemplate(); |
| | | // éè¯çç¥ |
| | | SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy(); |
| | | retryPolicy.setMaxAttempts(policy.getMaxAttempts()); |
| | | // 设置é´éçç¥ |
| | | FixedBackOffPolicy backOffPolicy = new FixedBackOffPolicy(); |
| | | backOffPolicy.setBackOffPeriod(policy.getSleepMillis()); |
| | | template.setRetryPolicy(retryPolicy); |
| | | template.setBackOffPolicy(backOffPolicy); |
| | | return template; |
| | | } |
| | | } |