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shuhongfan
42
sentinel/sentinel-demo/sentinel-demo-sofa-rpc/README.md
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42
sentinel/sentinel-demo/sentinel-demo-sofa-rpc/README.md
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# Sentinel SOFARPC Demo
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Sentinel 提供了与 SOFARPC 整合的模块 - `sentinel-sofa-rpc-adapter`，主要包括针对 Service Provider 和 Service Consumer 实现的 Filter。使用时用户只需引入以下模块（以 Maven 为例）：
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```xml
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<dependency>
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<groupId>com.alibaba.csp</groupId>
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<artifactId>sentinel-sofa-rpc-adapter</artifactId>
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<version>x.y.z</version>
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</dependency>
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```
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引入此依赖后，SOFARPC 的服务接口和方法（包括调用端和服务端）就会成为 Sentinel 中的资源，在配置了规则后就可以自动享受到 Sentinel 的防护能力。
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> **注：若希望接入 Dashboard，请参考 demo 中的注释添加启动参数。只引入 `sentinel-sofa-rpc-adapter` 依赖无法接入控制台！**
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若不希望开启 Sentinel SOFARPC Adapter 中的某个 Filter，可以手动关闭对应的 Filter，比如：
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```java
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providerConfig.setParameter("sofa.rpc.sentinel.enabled", "false");
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consumerConfig.setParameter("sofa.rpc.sentinel.enabled", "false");
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```
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或者在 `rpc-config.json` 文件中设置，它的优先级要低一些。
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```json
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{
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"sofa.rpc.sentinel.enabled": true
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}
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```
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## 运行 Demo
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1. 启动控制台，运行 `DashboardApplication`
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2. 启动 Provider，运行 `DemoProvider`（VM参数：`-Dproject.name=DemoProvider -Dcsp.sentinel.dashboard.server=localhost:8080`）
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3. 启动 Consumer，运行 `DemoConsumer`（VM参数：`-Dproject.name=DemoConsumer -Dcsp.sentinel.dashboard.server=localhost:8080`）
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通过控制台实时监控、簇点链路菜单观察接口调用、资源情况；对资源设置不同流控规则，进行观察和调试。
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参考：[Sentinel 控制台文档](https://github.com/alibaba/Sentinel/wiki/控制台).
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44
sentinel/sentinel-demo/sentinel-demo-sofa-rpc/pom.xml
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44
sentinel/sentinel-demo/sentinel-demo-sofa-rpc/pom.xml
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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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<parent>
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<artifactId>sentinel-demo</artifactId>
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<groupId>com.alibaba.csp</groupId>
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<version>1.8.3</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>sentinel-demo-sofa-rpc</artifactId>
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<properties>
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<sofa-rpc-all.version>5.6.4</sofa-rpc-all.version>
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<slf4j-log4j12.version>1.7.21</slf4j-log4j12.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.alibaba.csp</groupId>
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<artifactId>sentinel-sofa-rpc-adapter</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>com.alibaba.csp</groupId>
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<artifactId>sentinel-transport-simple-http</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>com.alipay.sofa</groupId>
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<artifactId>sofa-rpc-all</artifactId>
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<version>${sofa-rpc-all.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-log4j12</artifactId>
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<version>${slf4j-log4j12.version}</version>
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</dependency>
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</dependencies>
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</project>
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/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (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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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.demo.sofa.rpc;
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import com.alibaba.csp.sentinel.demo.sofa.rpc.service.DemoService;
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import com.alipay.sofa.rpc.common.RpcConstants;
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import com.alipay.sofa.rpc.config.ApplicationConfig;
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import com.alipay.sofa.rpc.config.ConsumerConfig;
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import java.util.concurrent.TimeUnit;
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/**
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* Demo consumer of SOFARPC.
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*
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* Interact with Sentinel Dashboard, add the following VM arguments:
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* <pre>
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* -Dproject.name=DemoProvider -Dcsp.sentinel.dashboard.server=localhost:8080
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* </pre>
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*
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* @author cdfive
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*/
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public class DemoConsumer {
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public static void main(String[] args) throws Exception {
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ApplicationConfig application = new ApplicationConfig().setAppName("DemoConsumer");
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ConsumerConfig<DemoService> consumerConfig = new ConsumerConfig<DemoService>()
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.setApplication(application)
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.setInterfaceId(DemoService.class.getName())
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.setProtocol("bolt")
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.setDirectUrl("bolt://127.0.0.1:12001")
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.setInvokeType(RpcConstants.INVOKER_TYPE_SYNC);
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// 设置是否启用Sentinel,默认启用
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// 也可在rpc-config.json全局设置
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// consumerConfig.setParameter("sofa.rpc.sentinel.enabled", "false");
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DemoService helloService = consumerConfig.refer();
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System.out.println("DemoConsumer started!");
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long sleepMs = 5;
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int total = 5000;
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int index = 0;
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System.out.println("Total call " + total + " times and sleep " + sleepMs + "ms after each call.");
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while (true) {
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try {
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index++;
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String result = helloService.sayHello(index, "SOFARPC", 2020);
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System.out.println("[" + index + "][Consumer]receive response: " + result);
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} catch (Exception e) {
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System.out.println("[" + index + "][Consumer]receive exception: " + e.getMessage());
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}
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TimeUnit.MILLISECONDS.sleep(sleepMs);
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if (index == total) {
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break;
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}
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}
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System.out.println("DemoConsumer exit!");
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System.exit(0);
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}
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}
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/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (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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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.demo.sofa.rpc;
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import com.alibaba.csp.sentinel.demo.sofa.rpc.service.DemoService;
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import com.alibaba.csp.sentinel.demo.sofa.rpc.service.impl.DemoServiceImpl;
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import com.alipay.sofa.rpc.config.ProviderConfig;
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import com.alipay.sofa.rpc.config.ServerConfig;
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/**
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* Demo provider of SOFARPC
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*
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* Interact with Sentinel Dashboard, add the following VM arguments:
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* <pre>
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* -Dproject.name=DemoProvider -Dcsp.sentinel.dashboard.server=localhost:8080
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* </pre>
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*
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* @author cdfive
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*/
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public class DemoProvider {
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public static void main(String[] args) {
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ServerConfig serverConfig = new ServerConfig()
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.setProtocol("bolt")
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.setPort(12001)
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.setDaemon(false);
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ProviderConfig<DemoService> providerConfig = new ProviderConfig<DemoService>()
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.setInterfaceId(DemoService.class.getName())
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.setRef(new DemoServiceImpl())
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.setServer(serverConfig);
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// 设置是否启用Sentinel,默认启用
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// 也可在rpc-config.json全局设置
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// providerConfig.setParameter("sofa.rpc.sentinel.enabled", "false");
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providerConfig.export();
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System.out.println("DemoProvider started!");
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}
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}
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/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (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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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.demo.sofa.rpc.service;
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/**
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* @author cdfive
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*/
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public interface DemoService {
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String sayHello(Integer index, String name, int year);
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}
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/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (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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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.demo.sofa.rpc.service.impl;
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import com.alibaba.csp.sentinel.demo.sofa.rpc.service.DemoService;
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import java.util.concurrent.ThreadLocalRandom;
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import java.util.concurrent.TimeUnit;
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/**
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* @author cdfive
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*/
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public class DemoServiceImpl implements DemoService {
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@Override
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public String sayHello(Integer index, String name, int year) {
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System.out.println("[" + index + "][Provider]receive request: " + name + "," + year);
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int sleepMs = ThreadLocalRandom.current().nextInt(50);
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try {
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TimeUnit.MILLISECONDS.sleep(sleepMs);
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} catch (InterruptedException e) {
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System.err.println(e.getMessage());
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}
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return "Hello " + name + " " + year + "[" + sleepMs + "ms]";
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}
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
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<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
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<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
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<layout class="org.apache.log4j.PatternLayout">
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<param name="ConversionPattern" value="%d %t %5p [%c:%M:%L] - %m%n"/>
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</layout>
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</appender>
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<root>
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<level value="INFO"/>
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<appender-ref ref="CONSOLE"/>
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</root>
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</log4j:configuration>
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@@ -0,0 +1,6 @@
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{
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"rpc.config.order": 999,
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"logger.impl": "com.alipay.sofa.rpc.log.SLF4JLoggerImpl",
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// 是否启用Sentinel,不设置默认为true
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"sofa.rpc.sentinel.enabled": true
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}
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