Add an ApiCommandHandler to list all available commands and description (#491)
* Add a ApiCommandHandler which fetch all registered CommandHandlers so that user can get all available CommandHandlers by request /api * Add a customized CommandHandler demo
This commit is contained in:
逅弈
Eric Zhao
parent
13de41ba6f
commit
59d923ebc1
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@ -29,7 +29,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/client/fetchConfig")
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@CommandMapping(name = "cluster/client/fetchConfig", desc = "get cluster client config")
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public class FetchClusterClientConfigHandler implements CommandHandler<String> {
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@Override
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@ -33,7 +33,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/client/modifyConfig")
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@CommandMapping(name = "cluster/client/modifyConfig", desc = "modify cluster client config")
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public class ModifyClusterClientConfigHandler implements CommandHandler<String> {
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@Override
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@ -27,7 +27,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/flowRules")
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@CommandMapping(name = "cluster/server/flowRules", desc = "get cluster flow rules")
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public class FetchClusterFlowRulesCommandHandler implements CommandHandler<String> {
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@Override
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@ -27,7 +27,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.1
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*/
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@CommandMapping(name = "cluster/server/metricList")
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@CommandMapping(name = "cluster/server/metricList", desc = "get cluster server metrics")
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public class FetchClusterMetricCommandHandler implements CommandHandler<String> {
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@Override
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@ -27,7 +27,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/paramRules")
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@CommandMapping(name = "cluster/server/paramRules", desc = "get cluster server param flow rules")
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public class FetchClusterParamFlowRulesCommandHandler implements CommandHandler<String> {
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@Override
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@ -29,7 +29,7 @@ import com.alibaba.fastjson.JSONObject;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/fetchConfig")
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@CommandMapping(name = "cluster/server/fetchConfig", desc = "get cluster server config")
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public class FetchClusterServerConfigHandler implements CommandHandler<String> {
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@Override
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@ -35,7 +35,7 @@ import com.alibaba.fastjson.JSONObject;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/info")
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@CommandMapping(name = "cluster/server/info", desc = "get cluster server info")
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public class FetchClusterServerInfoCommandHandler implements CommandHandler<String> {
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@Override
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@ -32,7 +32,7 @@ import com.alibaba.fastjson.JSONArray;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/modifyFlowRules")
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@CommandMapping(name = "cluster/server/modifyFlowRules", desc = "modify cluster flow rules")
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public class ModifyClusterFlowRulesCommandHandler implements CommandHandler<String> {
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@Override
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@ -32,7 +32,7 @@ import com.alibaba.fastjson.JSONArray;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/modifyParamRules")
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@CommandMapping(name = "cluster/server/modifyParamRules", desc = "modify cluster param flow rules")
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public class ModifyClusterParamFlowRulesCommandHandler implements CommandHandler<String> {
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@Override
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@ -32,7 +32,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/modifyFlowConfig")
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@CommandMapping(name = "cluster/server/modifyFlowConfig", desc = "modify cluster server flow config")
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public class ModifyClusterServerFlowConfigHandler implements CommandHandler<String> {
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@Override
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@ -27,7 +27,7 @@ import com.alibaba.csp.sentinel.util.StringUtil;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/modifyTransportConfig")
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@CommandMapping(name = "cluster/server/modifyTransportConfig", desc = "modify cluster server transport config")
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public class ModifyClusterServerTransportConfigHandler implements CommandHandler<String> {
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@Override
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@ -33,7 +33,7 @@ import com.alibaba.fastjson.TypeReference;
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* @author Eric Zhao
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* @since 1.4.0
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*/
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@CommandMapping(name = "cluster/server/modifyNamespaceSet")
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@CommandMapping(name = "cluster/server/modifyNamespaceSet", desc = "modify server namespace set")
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public class ModifyServerNamespaceSetHandler implements CommandHandler<String> {
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@Override
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@ -29,6 +29,7 @@
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<module>sentinel-demo-parameter-flow-control</module>
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<module>sentinel-demo-slot-chain-spi</module>
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<module>sentinel-demo-cluster</module>
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<module>sentinel-demo-command-handler</module>
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</modules>
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<dependencies>
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@ -0,0 +1,35 @@
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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>1.4.2-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>sentinel-demo-command-handler</artifactId>
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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-cluster-client-default</artifactId>
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<version>1.4.2-SNAPSHOT</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-cluster-server-default</artifactId>
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<version>1.4.2-SNAPSHOT</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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</dependency>
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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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<version>1.5.17.RELEASE</version>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,31 @@
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/*
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* Copyright 1999-2019 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.commandhandler;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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/**
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* @author houyi
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**/
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@SpringBootApplication(scanBasePackages = {"com.alibaba.csp.sentinel"})
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public class Application {
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public static void main(String[] args) {
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SpringApplication.run(Application.class, args);
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}
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}
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@ -0,0 +1,46 @@
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/*
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* Copyright 1999-2019 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.commandhandler;
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import com.alibaba.csp.sentinel.command.CommandHandler;
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import com.alibaba.csp.sentinel.command.CommandRequest;
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import com.alibaba.csp.sentinel.command.CommandResponse;
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import com.alibaba.csp.sentinel.command.annotation.CommandMapping;
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/**
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* Customized CommandHandler
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* This Class is a demo shows how to create a customized CommandHandler
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* <ul>
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* <li>1.Create a class which implements the {@link CommandHandler} interface </li>
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* <li>2.Use a {@link CommandMapping} to specify the url and desc of your CommandHandler </li>
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* <li>3.Implement your own handle method </li>
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* <li>4.Add your CommandHandler in com.alibaba.csp.sentinel.command.CommandHandler file which is stored in resources/META-INF/services/ </li>
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* </ul>
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* @author houyi
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**/
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@CommandMapping(name = "echo", desc = "echo service")
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public class EchoCommandHandler implements CommandHandler<String> {
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@Override
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public CommandResponse<String> handle(CommandRequest request) {
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String name = request.getParam("name");
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if(name==null || name.trim().length()==0){
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return CommandResponse.ofSuccess("Tell us what's your name by submit a name parameter");
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}
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return CommandResponse.ofSuccess("Hello: "+name);
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}
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}
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@ -0,0 +1,48 @@
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/*
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* Copyright 1999-2019 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.commandhandler;
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import com.alibaba.csp.sentinel.SphU;
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import com.alibaba.csp.sentinel.slots.block.BlockException;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.ResponseBody;
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/**
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* @author houyi
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**/
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@Controller
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public class MainController {
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/**
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* init sentinel
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* @return pass or block
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*/
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@GetMapping("/init")
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public @ResponseBody
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String init() {
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String retVal;
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String resource = "init";
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try{
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SphU.entry(resource);
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retVal = "pass";
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}catch (BlockException e){
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retVal = "block";
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}
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return retVal;
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}
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}
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@ -0,0 +1 @@
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com.alibaba.csp.sentinel.demo.commandhandler.EchoCommandHandler
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@ -30,7 +30,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 0.2.0
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*/
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@CommandMapping(name = "topParams")
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@CommandMapping(name = "topParams", desc = "get topN param in specified resource, accept param: res={resourceName}&idx={paramIndex}&n={topN}")
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public class FetchTopParamsCommandHandler implements CommandHandler<String> {
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@Override
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@ -26,7 +26,7 @@ import com.alibaba.fastjson.JSON;
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* @author Eric Zhao
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* @since 0.2.0
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*/
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@CommandMapping(name = "getParamFlowRules")
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@CommandMapping(name = "getParamFlowRules", desc = "get param flow rules")
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public class GetParamFlowRulesCommandHandler implements CommandHandler<String> {
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@Override
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@ -33,7 +33,7 @@ import com.alibaba.fastjson.JSONArray;
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* @author Eric Zhao
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* @since 0.2.0
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*/
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@CommandMapping(name = "setParamFlowRules")
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@CommandMapping(name = "setParamFlowRules", desc = "set param flow rules, accept param: data={paramFlowRule Json}")
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public class ModifyParamFlowRulesCommandHandler implements CommandHandler<String> {
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private static WritableDataSource<List<ParamFlowRule>> paramFlowWds = null;
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@ -15,11 +15,7 @@
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*/
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package com.alibaba.csp.sentinel.command.annotation;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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import java.lang.annotation.*;
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/**
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* @author Eric Zhao
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@ -30,4 +26,7 @@ import java.lang.annotation.Target;
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public @interface CommandMapping {
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String name();
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String desc();
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}
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@ -0,0 +1,60 @@
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/*
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* Copyright 1999-2019 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.command.handler;
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import com.alibaba.csp.sentinel.command.CommandHandler;
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import com.alibaba.csp.sentinel.command.CommandHandlerProvider;
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import com.alibaba.csp.sentinel.command.CommandRequest;
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import com.alibaba.csp.sentinel.command.CommandResponse;
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import com.alibaba.csp.sentinel.command.annotation.CommandMapping;
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import com.alibaba.fastjson.JSONArray;
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import com.alibaba.fastjson.JSONObject;
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import java.util.Map;
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/**
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* <p>
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* List all available command handlers by request: </br>
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* {@code curl http://localhost:8719/api}
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* </p>
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* @author houyi
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**/
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@CommandMapping(name = "api", desc = "get all available command handlers")
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public class ApiCommandHandler implements CommandHandler<String> {
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@Override
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public CommandResponse<String> handle(CommandRequest request) {
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Map<String, CommandHandler> handlers = CommandHandlerProvider.getInstance().namedHandlers();
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JSONArray array = new JSONArray();
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if (handlers.isEmpty()) {
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return CommandResponse.ofSuccess(array.toJSONString());
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}
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for (CommandHandler handler : handlers.values()) {
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CommandMapping commandMapping = handler.getClass().getAnnotation(CommandMapping.class);
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if (commandMapping == null) {
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continue;
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}
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String api = commandMapping.name();
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String desc = commandMapping.desc();
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JSONObject obj = new JSONObject();
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obj.put("url", "/" + api);
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obj.put("desc", desc);
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array.add(obj);
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}
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return CommandResponse.ofSuccess(array.toJSONString());
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}
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}
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@ -26,7 +26,7 @@ import com.alibaba.csp.sentinel.util.HostNameUtil;
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*
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* @author Eric Zhao
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*/
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@CommandMapping(name = "basicInfo")
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@CommandMapping(name = "basicInfo", desc = "get sentinel config info")
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public class BasicInfoCommandHandler implements CommandHandler<String> {
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@Override
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@ -28,7 +28,7 @@ import com.alibaba.fastjson.JSON;
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/**
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* @author jialiang.linjl
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*/
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@CommandMapping(name = "getRules")
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@CommandMapping(name = "getRules", desc = "get all active rules by type, request param: type={ruleType}")
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public class FetchActiveRuleCommandHandler implements CommandHandler<String> {
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@Override
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@ -28,7 +28,7 @@ import com.alibaba.fastjson.JSON;
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/**
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* @author qinan.qn
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*/
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@CommandMapping(name = "clusterNodeById")
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@CommandMapping(name = "clusterNodeById", desc = "get clusterNode VO by id, request param: id={resourceName}")
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public class FetchClusterNodeByIdCommandHandler implements CommandHandler<String> {
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@Override
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@ -29,7 +29,7 @@ import com.alibaba.csp.sentinel.slots.clusterbuilder.ClusterBuilderSlot;
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/**
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* @author qinan.qn
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*/
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@CommandMapping(name = "cnode")
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@CommandMapping(name = "cnode", desc = "get clusterNode metrics by id, request param: id={resourceName}")
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public class FetchClusterNodeHumanCommandHandler implements CommandHandler<String> {
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private final static String FORMAT = "%-4s%-80s%-10s%-10s%-10s%-11s%-9s%-6s%-10s%-11s%-9s%-11s";
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@ import com.alibaba.fastjson.JSON;
|
|||
/**
|
||||
* @author leyou
|
||||
*/
|
||||
@CommandMapping(name = "jsonTree")
|
||||
@CommandMapping(name = "jsonTree", desc = "get tree node VO start from root node")
|
||||
public class FetchJsonTreeCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -29,7 +29,7 @@ import com.alibaba.csp.sentinel.slots.clusterbuilder.ClusterBuilderSlot;
|
|||
/**
|
||||
* @author qinan.qn
|
||||
*/
|
||||
@CommandMapping(name = "origin")
|
||||
@CommandMapping(name = "origin", desc = "get origin clusterNode by id, request param: id={resourceName}")
|
||||
public class FetchOriginCommandHandler implements CommandHandler<String> {
|
||||
|
||||
private final static String FORMAT = "%-4s%-80s%-10s%-10s%-11s%-9s%-6s%-10s%-11s%-9s";
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@ import com.alibaba.fastjson.JSONArray;
|
|||
/**
|
||||
* @author jialiang.linjl
|
||||
*/
|
||||
@CommandMapping(name = "clusterNode")
|
||||
@CommandMapping(name = "clusterNode", desc = "get all clusterNode VO, use type=notZero to ignore those nodes with totalRequest <=0")
|
||||
public class FetchSimpleClusterNodeCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ import com.alibaba.fastjson.JSONObject;
|
|||
/**
|
||||
* @author jialiang.linjl
|
||||
*/
|
||||
@CommandMapping(name = "systemStatus")
|
||||
@CommandMapping(name = "systemStatus", desc = "get system status")
|
||||
public class FetchSystemStatusCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ import com.alibaba.csp.sentinel.node.Node;
|
|||
/**
|
||||
* @author qinan.qn
|
||||
*/
|
||||
@CommandMapping(name = "tree")
|
||||
@CommandMapping(name = "tree", desc = "get metrics in tree mode, use id to specify detailed tree root")
|
||||
public class FetchTreeCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -41,7 +41,7 @@ import static com.alibaba.csp.sentinel.transport.util.WritableDataSourceRegistry
|
|||
* @author jialiang.linjl
|
||||
* @author Eric Zhao
|
||||
*/
|
||||
@CommandMapping(name = "setRules")
|
||||
@CommandMapping(name = "setRules", desc = "modify the rules, accept param: type={ruleType}&data={ruleJson}")
|
||||
public class ModifyRulesCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ import com.alibaba.csp.sentinel.command.annotation.CommandMapping;
|
|||
/**
|
||||
* @author youji.zj
|
||||
*/
|
||||
@CommandMapping(name = "getSwitch")
|
||||
@CommandMapping(name = "getSwitch", desc = "get sentinel switch status")
|
||||
public class OnOffGetCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@ import com.alibaba.csp.sentinel.Constants;
|
|||
/**
|
||||
* @author youji.zj
|
||||
*/
|
||||
@CommandMapping(name = "setSwitch")
|
||||
@CommandMapping(name = "setSwitch", desc = "set sentinel switch, accept param: value={true|false}")
|
||||
public class OnOffSetCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@ import com.alibaba.csp.sentinel.node.metric.MetricWriter;
|
|||
* @author leyou
|
||||
* @author Eric Zhao
|
||||
*/
|
||||
@CommandMapping(name = "metric")
|
||||
@CommandMapping(name = "metric", desc = "get and aggregate metrics, accept param: startTime={startTime}&endTime={endTime}&maxLines={maxLines}&identify={resourceName}")
|
||||
public class SendMetricCommandHandler implements CommandHandler<String> {
|
||||
|
||||
private MetricSearcher searcher;
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@ import com.alibaba.csp.sentinel.command.annotation.CommandMapping;
|
|||
* @author jialiang.linjl
|
||||
* @author Eric Zhao
|
||||
*/
|
||||
@CommandMapping(name = "version")
|
||||
@CommandMapping(name = "version", desc = "get sentinel version")
|
||||
public class VersionCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ import com.alibaba.fastjson.JSONObject;
|
|||
* @author Eric Zhao
|
||||
* @since 1.4.0
|
||||
*/
|
||||
@CommandMapping(name = "getClusterMode")
|
||||
@CommandMapping(name = "getClusterMode", desc = "get cluster mode status")
|
||||
public class FetchClusterModeCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ import com.alibaba.csp.sentinel.log.RecordLog;
|
|||
* @author Eric Zhao
|
||||
* @since 1.4.0
|
||||
*/
|
||||
@CommandMapping(name = "setClusterMode")
|
||||
@CommandMapping(name = "setClusterMode", desc = "set cluster mode, accept param: mode={0|1} 0:client mode 1:server mode")
|
||||
public class ModifyClusterModeCommandHandler implements CommandHandler<String> {
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -13,4 +13,5 @@ com.alibaba.csp.sentinel.command.handler.OnOffSetCommandHandler
|
|||
com.alibaba.csp.sentinel.command.handler.SendMetricCommandHandler
|
||||
com.alibaba.csp.sentinel.command.handler.VersionCommandHandler
|
||||
com.alibaba.csp.sentinel.command.handler.cluster.FetchClusterModeCommandHandler
|
||||
com.alibaba.csp.sentinel.command.handler.cluster.ModifyClusterModeCommandHandler
|
||||
com.alibaba.csp.sentinel.command.handler.cluster.ModifyClusterModeCommandHandler
|
||||
com.alibaba.csp.sentinel.command.handler.ApiCommandHandler
|
||||
Loading…
Reference in New Issue