chuntaojun
3 years ago
parent
8975054069
commit
b2081651e9
@ -0,0 +1,43 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.polaris.loadbalancer.reactive;
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import com.tencent.cloud.common.constant.HeaderConstant;
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import com.tencent.polaris.api.core.ConsumerAPI;
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import org.springframework.cloud.client.ServiceInstance;
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import org.springframework.cloud.client.loadbalancer.reactive.LoadBalancerClientRequestTransformer;
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import org.springframework.http.HttpHeaders;
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import org.springframework.web.reactive.function.client.ClientRequest;
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public class PolarisLoadBalancerClientRequestTransformer implements LoadBalancerClientRequestTransformer {
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private final ConsumerAPI consumerAPI;
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public PolarisLoadBalancerClientRequestTransformer(ConsumerAPI consumerAPI) {
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this.consumerAPI = consumerAPI;
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}
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@Override
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public ClientRequest transformRequest(ClientRequest request, ServiceInstance instance) {
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if (instance != null) {
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HttpHeaders headers = request.headers();
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headers.add(HeaderConstant.INTERNAL_CALLEE_SERVICE_ID, instance.getServiceId());
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}
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return request;
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}
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}
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@ -0,0 +1,42 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.common.constant;
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/**
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* Built-in system http header fields
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*/
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public final class HeaderConstant {
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/**
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* The called service returns the real call result of its own processing request
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*/
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public static final String INTERNAL_CALLEE_RET_STATUS = "internal-callee-retstatus";
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/**
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* The name of the rule that the current limit/circiutbreaker rule takes effect
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*/
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public static final String INTERNAL_ACTIVE_RULE_NAME = "internal-callee-activerule";
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/**
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* The name information of the called service
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*/
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public static final String INTERNAL_CALLEE_SERVICE_ID = "internal-callee-serviceid";
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private HeaderConstant() {
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}
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}
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@ -0,0 +1,51 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>polaris-ratelimit-example</artifactId>
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<groupId>com.tencent.cloud</groupId>
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<version>${revision}</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>ratelimit-caller-service</artifactId>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-webflux</artifactId>
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</dependency>
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<dependency>
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<groupId>com.tencent.cloud</groupId>
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<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
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</dependency>
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<dependency>
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<groupId>com.tencent.cloud</groupId>
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<artifactId>spring-cloud-starter-tencent-polaris-ratelimit</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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@ -0,0 +1,171 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.ratelimit.example.service.caller;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpMethod;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.client.HttpClientErrorException.TooManyRequests;
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import org.springframework.web.client.RestClientException;
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import org.springframework.web.client.RestTemplate;
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import org.springframework.web.reactive.function.client.WebClient;
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import org.springframework.web.reactive.function.client.WebClientResponseException;
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import reactor.core.publisher.Mono;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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@RestController
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@RequestMapping("/business")
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public class Controller {
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private static final Logger LOG = LoggerFactory.getLogger(Controller.class);
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private final AtomicInteger index = new AtomicInteger(0);
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private final AtomicLong lastTimestamp = new AtomicLong(0);
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@Autowired
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private RestTemplate restTemplate;
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@Autowired
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private WebClient.Builder webClientBuilder;
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private String appName = "RateLimitCalleeService";
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/**
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* Get information.
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* @return information
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*/
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@GetMapping("/info")
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public String info() {
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return "hello world for ratelimit service " + index.incrementAndGet();
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}
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@GetMapping("/info/webclient")
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public Mono<String> infoWebClient() {
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return Mono.just("hello world for ratelimit service " + index.incrementAndGet());
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}
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@GetMapping("/invoke/webclient")
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public String invokeInfoWebClient() throws InterruptedException, ExecutionException {
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StringBuffer builder = new StringBuffer();
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WebClient webClient = webClientBuilder.baseUrl("http://" + appName).build();
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List<Mono<String>> monoList = new ArrayList<>();
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for (int i = 0; i < 30; i++) {
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Mono<String> response = webClient.get()
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.uri(uriBuilder -> uriBuilder
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.path("/business/info/webclient")
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.queryParam("yyy", "yyy")
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.build()
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)
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.header("xxx", "xxx")
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.retrieve()
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.bodyToMono(String.class)
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.doOnSuccess(s -> builder.append(s + "\n"))
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.doOnError(e -> {
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if (e instanceof WebClientResponseException) {
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if (((WebClientResponseException) e).getRawStatusCode() == 429) {
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builder.append("TooManyRequests ").append(index.incrementAndGet() + "\n");
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}
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}
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})
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.onErrorReturn("");
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monoList.add(response);
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}
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for (Mono<String> mono : monoList) {
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mono.toFuture().get();
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}
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index.set(0);
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return builder.toString();
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}
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/**
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* Get information 30 times per 1 second.
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*
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* @return result of 30 calls.
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* @throws InterruptedException exception
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*/
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@GetMapping("/invoke")
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public String invokeInfo() throws InterruptedException {
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StringBuffer builder = new StringBuffer();
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CountDownLatch count = new CountDownLatch(30);
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for (int i = 0; i < 30; i++) {
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new Thread(() -> {
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try {
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HttpHeaders httpHeaders = new HttpHeaders();
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httpHeaders.add("xxx", "xxx");
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ResponseEntity<String> entity = restTemplate.exchange(
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"http://" + appName + "/business/info?yyy={yyy}",
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HttpMethod.GET,
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new HttpEntity<>(httpHeaders),
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String.class,
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"yyy"
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);
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builder.append(entity.getBody() + "\n");
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}
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catch (RestClientException e) {
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if (e instanceof TooManyRequests) {
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builder.append("TooManyRequests ").append(index.incrementAndGet() + "\n");
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}
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else {
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throw e;
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}
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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finally {
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count.countDown();
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}
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}).start();
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}
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count.await();
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index.set(0);
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return builder.toString();
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}
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/**
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* Get information with unirate.
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*
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* @return information
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*/
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@GetMapping("/unirate")
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public String unirate() {
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long currentTimestamp = System.currentTimeMillis();
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long lastTime = lastTimestamp.get();
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if (lastTime != 0) {
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LOG.info("Current timestamp:" + currentTimestamp + ", diff from last timestamp:" + (currentTimestamp - lastTime));
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}
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else {
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LOG.info("Current timestamp:" + currentTimestamp);
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}
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lastTimestamp.set(currentTimestamp);
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return "hello world for ratelimit service with diff from last request:" + (currentTimestamp - lastTime) + "ms.";
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}
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}
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@ -0,0 +1,51 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
|
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||
* specific language governing permissions and limitations under the License.
|
||||
*/
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package com.tencent.cloud.ratelimit.example.service.caller;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.client.loadbalancer.LoadBalanced;
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import org.springframework.context.annotation.Bean;
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import org.springframework.web.client.RestTemplate;
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import org.springframework.web.reactive.function.client.WebClient;
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@SpringBootApplication
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public class RateLimitCallerService {
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private static final Logger LOG = LoggerFactory.getLogger(RateLimitCallerService.class);
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public static void main(String[] args) {
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SpringApplication.run(RateLimitCallerService.class, args);
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}
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@Bean
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@LoadBalanced
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public RestTemplate restTemplate() {
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return new RestTemplate();
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}
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@LoadBalanced
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@Bean
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WebClient.Builder webClientBuilder() {
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return WebClient.builder();
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}
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}
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@ -0,0 +1,20 @@
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server:
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port: 58080
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spring:
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application:
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name: RateLimitCallerService
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cloud:
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polaris:
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address: grpc://127.0.0.1:8091
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namespace: default
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enabled: true
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management:
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endpoints:
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web:
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exposure:
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include:
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- polaris-ratelimit
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logging:
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level:
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com.tencent.cloud.polaris: debug
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@ -0,0 +1,170 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||
*
|
||||
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||
*
|
||||
* Licensed under the BSD 3-Clause License (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* https://opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software distributed
|
||||
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||
* specific language governing permissions and limitations under the License.
|
||||
*/
|
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package com.tencent.cloud.rpc.enhancement.webclient;
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import com.tencent.cloud.common.constant.HeaderConstant;
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import com.tencent.cloud.common.constant.RouterConstant;
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import com.tencent.cloud.common.metadata.MetadataContext;
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import com.tencent.cloud.rpc.enhancement.AbstractPolarisReporterAdapter;
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import com.tencent.cloud.rpc.enhancement.config.RpcEnhancementReporterProperties;
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import com.tencent.polaris.api.core.ConsumerAPI;
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import com.tencent.polaris.api.pojo.RetStatus;
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import com.tencent.polaris.api.pojo.ServiceKey;
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import com.tencent.polaris.api.rpc.ServiceCallResult;
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import com.tencent.polaris.api.utils.CollectionUtils;
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import com.tencent.polaris.client.api.SDKContext;
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import com.tencent.polaris.discovery.client.api.DefaultConsumerAPI;
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import org.apache.commons.lang.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.http.HttpHeaders;
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import org.springframework.web.reactive.function.client.ClientRequest;
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import org.springframework.web.reactive.function.client.ClientResponse;
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import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
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import org.springframework.web.reactive.function.client.ExchangeFunction;
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import reactor.core.publisher.Mono;
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import reactor.util.context.Context;
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import reactor.util.context.ContextView;
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import java.io.UnsupportedEncodingException;
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import java.net.SocketTimeoutException;
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import java.net.URI;
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import java.net.URLDecoder;
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import java.util.Collection;
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import java.util.List;
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import java.util.Objects;
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import static com.tencent.cloud.common.constant.ContextConstant.UTF_8;
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public class EnhancedWebClientReporter extends AbstractPolarisReporterAdapter implements ExchangeFilterFunction {
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private static final Logger LOGGER = LoggerFactory.getLogger(EnhancedWebClientReporter.class);
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private static final String METRICS_WEBCLIENT_START_TIME = EnhancedWebClientReporter.class.getName()
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+ ".START_TIME";
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private final ConsumerAPI consumerAPI;
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private final SDKContext context;
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public EnhancedWebClientReporter(RpcEnhancementReporterProperties reportProperties, ConsumerAPI consumerAPI) {
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super(reportProperties);
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this.context = ((DefaultConsumerAPI) consumerAPI).getSDKContext();
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this.consumerAPI = consumerAPI;
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}
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@Override
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public Mono<ClientResponse> filter(ClientRequest request, ExchangeFunction next) {
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return next.exchange(request).as((responseMono) -> instrumentResponse(request, responseMono))
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.contextWrite(this::putStartTime);
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}
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private Mono<ClientResponse> instrumentResponse(ClientRequest request, Mono<ClientResponse> responseMono) {
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return Mono.deferContextual((ctx) -> responseMono.doOnEach((signal) -> {
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// report result to polaris
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if (reportProperties.isEnabled()) {
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return;
|
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}
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ServiceCallResult callResult = new ServiceCallResult();
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Long startTime = getStartTime(ctx);
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callResult.setDelay(System.currentTimeMillis() - startTime);
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callResult.setNamespace(MetadataContext.LOCAL_NAMESPACE);
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callResult.setService(request.headers().getFirst(HeaderConstant.INTERNAL_CALLEE_SERVICE_ID));
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String sourceNamespace = MetadataContext.LOCAL_NAMESPACE;
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String sourceService = MetadataContext.LOCAL_SERVICE;
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if (StringUtils.isNotBlank(sourceNamespace) && StringUtils.isNotBlank(sourceService)) {
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callResult.setCallerService(new ServiceKey(sourceNamespace, sourceService));
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}
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|
||||
Collection<String> labels = request.headers().get(RouterConstant.ROUTER_LABEL_HEADER);
|
||||
if (CollectionUtils.isNotEmpty(labels) && labels.iterator().hasNext()) {
|
||||
String label = labels.iterator().next();
|
||||
try {
|
||||
label = URLDecoder.decode(label, UTF_8);
|
||||
} catch (UnsupportedEncodingException e) {
|
||||
LOGGER.error("unsupported charset exception " + UTF_8, e);
|
||||
}
|
||||
callResult.setLabels(convertLabel(label));
|
||||
}
|
||||
|
||||
URI uri = request.url();
|
||||
callResult.setMethod(uri.getPath());
|
||||
callResult.setHost(uri.getHost());
|
||||
// -1 means access directly by url, and use http default port number 80
|
||||
callResult.setPort(uri.getPort() == -1 ? 80 : uri.getPort());
|
||||
callResult.setCallerIp(context.getConfig().getGlobal().getAPI().getBindIP());
|
||||
|
||||
RetStatus retStatus = RetStatus.RetSuccess;
|
||||
ClientResponse response = signal.get();
|
||||
if (Objects.nonNull(response)) {
|
||||
callResult.setRuleName(getActiveRuleNameFromRequest(response));
|
||||
if (apply(response.statusCode())) {
|
||||
retStatus = RetStatus.RetFail;
|
||||
}
|
||||
retStatus = getRetStatusFromRequest(response, retStatus);
|
||||
}
|
||||
if (signal.isOnError()) {
|
||||
Throwable throwable = signal.getThrowable();
|
||||
if (throwable instanceof SocketTimeoutException) {
|
||||
retStatus = RetStatus.RetTimeout;
|
||||
}
|
||||
}
|
||||
callResult.setRetStatus(retStatus);
|
||||
|
||||
consumerAPI.updateServiceCallResult(callResult);
|
||||
}));
|
||||
}
|
||||
|
||||
private static RetStatus getRetStatusFromRequest(ClientResponse response, RetStatus defaultVal) {
|
||||
HttpHeaders headers = response.headers().asHttpHeaders();
|
||||
if (headers.containsKey(HeaderConstant.INTERNAL_CALLEE_RET_STATUS)) {
|
||||
List<String> values = headers.get(HeaderConstant.INTERNAL_CALLEE_RET_STATUS);
|
||||
if (CollectionUtils.isNotEmpty(values)) {
|
||||
String retStatusVal = com.tencent.polaris.api.utils.StringUtils.defaultString(values.get(0));
|
||||
if (Objects.equals(retStatusVal, RetStatus.RetFlowControl.getDesc())) {
|
||||
return RetStatus.RetFlowControl;
|
||||
}
|
||||
if (Objects.equals(retStatusVal, RetStatus.RetReject.getDesc())) {
|
||||
return RetStatus.RetReject;
|
||||
}
|
||||
}
|
||||
}
|
||||
return defaultVal;
|
||||
}
|
||||
|
||||
private static String getActiveRuleNameFromRequest(ClientResponse response) {
|
||||
HttpHeaders headers = response.headers().asHttpHeaders();
|
||||
if (headers.containsKey(HeaderConstant.INTERNAL_ACTIVE_RULE_NAME)) {
|
||||
List<String> values = headers.get(HeaderConstant.INTERNAL_ACTIVE_RULE_NAME);
|
||||
if (CollectionUtils.isNotEmpty(values)) {
|
||||
String val = com.tencent.polaris.api.utils.StringUtils.defaultString(values.get(0));
|
||||
return val;
|
||||
}
|
||||
}
|
||||
return "";
|
||||
}
|
||||
|
||||
private Long getStartTime(ContextView context) {
|
||||
return context.get(METRICS_WEBCLIENT_START_TIME);
|
||||
}
|
||||
|
||||
private Context putStartTime(Context context) {
|
||||
return context.put(METRICS_WEBCLIENT_START_TIME, System.currentTimeMillis());
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue