## 前言
要想改造 sentinel-dashboard，需要修改 dashboard 的源码。（本文基于sentinel 1.8.0）
先通过 Github 拉取 Sentinel 源码，GitHub 地址：https://github.com/alibaba/Sentinel
导入 IDEA，下载依赖，进入 sentinel-dashboard 模块，所有的修改都在该模块下。
## 修改 POM
想要将 dashboard 的规则持久化到 Nacos，需要添加一个依赖，源码中已经添加，不过只在测试环境下打包进去了。
在 pom.xml 文件中找到以下依赖，去掉 scope 或注释掉。
```xml
<!-- for Nacos rule publisher sample -->
<dependency>
<groupId>com.alibaba.csp</groupId>
<artifactId>sentinel-datasource-nacos</artifactId>
<!-- <scope>test</scope> -->
</dependency>
```
## 修改配置文件
找到配置文件 application.properties 文件，在末尾添加一下配置：
```properties
#Nacos Configurations
sentinel.nacos.serverAddr=localhost:8848
sentinel.nacos.namespace=
sentinel.nacos.group-id=SENTINEL-GROUP
```
`sentinel.nacos.serverAddr` 是 Nacos 服务器地址，如果是集群则用逗号隔开。
## 修改后端代码
新建包 `com.alibaba.csp.sentinel.dashboard.rule.nacos`，并在该包下根据以下结构新建包。
```shell
├─auth #存放授权规则相关类
├─degrade #存放降级规则相关类
├─flow #存放限流规则相关类
├─gateway #存放网关限流规则相关类
│ ├─api
│ └─flow
├─param #存放热点规则相关类
└─system #存放系统规则相关类
```
直接在`com.alibaba.csp.sentinel.dashboard.rule.nacos`包下创建以下类：
1. NacosPropertiesConfig，存放前面配置文件中关于 Nacos 的配置
```java
@ConfigurationProperties("sentinel.nacos")
public class NacosPropertiesConfig {
private String serverAddr;
private String dataId;
private String groupId = "SENTINEL_GROUP"; // 默认分组
private String namespace;
public String getServerAddr() {
return serverAddr;
}
public void setServerAddr(String serverAddr) {
this.serverAddr = serverAddr;
}
public String getDataId() {
return dataId;
}
public void setDataId(String dataId) {
this.dataId = dataId;
}
public String getGroupId() {
return groupId;
}
public void setGroupId(String groupId) {
this.groupId = groupId;
}
public String getNamespace() {
return namespace;
}
public void setNamespace(String namespace) {
this.namespace = namespace;
}
}
```
2. NacosConfigUtil，存放一些常量，各种规则文件名后缀。
```java
public final class NacosConfigUtil {
public static final String GROUP_ID = "SENTINEL_GROUP";
public static final String FLOW_DATA_ID_POSTFIX = "-flow-rules";
public static final String DEGRADE_DATA_ID_POSTFIX = "-degrade-rules";
public static final String PARAM_FLOW_DATA_ID_POSTFIX = "-param-rules";
public static final String SYS_DATA_ID_POSTFIX = "-system-rules";
public static final String AUTH_DATA_ID_POSTFIX = "-auth-rules";
public static final String GATEWAY_FLOW_DATA_ID_POSTFIX = "-gateway-flow";
public static final String GATEWAY_API_DATA_ID_POSTFIX = "-gateway-api";
public static final String CLUSTER_MAP_DATA_ID_POSTFIX = "-cluster-map";
/**
* cc for `cluster-client`
*/
public static final String CLIENT_CONFIG_DATA_ID_POSTFIX = "-cc-config";
/**
* cs for `cluster-server`
*/
public static final String SERVER_TRANSPORT_CONFIG_DATA_ID_POSTFIX = "-cs-transport-config";
public static final String SERVER_FLOW_CONFIG_DATA_ID_POSTFIX = "-cs-flow-config";
public static final String SERVER_NAMESPACE_SET_DATA_ID_POSTFIX = "-cs-namespace-set";
private NacosConfigUtil() {}
}
```
3. NacosConfig
```java
@EnableConfigurationProperties(NacosPropertiesConfig.class)
@Configuration
public class NacosConfig {
//====================流控规则 Converter
@Bean
public Converter<List<FlowRuleEntity>, String> flowRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean
public Converter<String, List<FlowRuleEntity>> flowRuleEntityDecoder() {
return s -> JSON.parseArray(s, FlowRuleEntity.class);
}
//====================降级规则 Converter
@Bean
public Converter<List<DegradeRuleEntity>, String> degradeRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean
public Converter<String, List<DegradeRuleEntity>> degradeRuleEntityDecoder() {
return s -> JSON.parseArray(s, DegradeRuleEntity.class);
}
//====================热点规则 Converter
@Bean
public Converter<List<ParamFlowRuleEntity>, String> paramsRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean
public Converter<String, List<ParamFlowRuleEntity>> paramsRuleEntityDecoder() {
return s -> JSON.parseArray(s, ParamFlowRuleEntity.class);
}
//====================系统规则 Converter
@Bean
public Converter<List<SystemRuleEntity>, String> systemRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean
public Converter<String, List<SystemRuleEntity>> systemRuleEntityDecoder() {
return s -> JSON.parseArray(s, SystemRuleEntity.class);
}
//====================授权规则 Converter
@Bean
public Converter<List<AuthorityRuleEntity>, String> authRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean Converter<String,List<AuthorityRuleEntity>> authRuleEntityDecoder(){
return s-> JSON.parseArray(s, AuthorityRuleEntity.class);
}
//====================网关限流规则 Converter
@Bean
public Converter<List<GatewayFlowRuleEntity>, String> gatewayFlowRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean Converter<String,List<GatewayFlowRuleEntity>> gatewayFlowRuleEntityDecoder(){
return s-> JSON.parseArray(s, GatewayFlowRuleEntity.class);
}
//====================网关API限流规则 Converter
@Bean
public Converter<List<ApiDefinitionEntity>, String> gatewayApiRuleEntityEncoder() {
return JSON::toJSONString;
}
@Bean Converter<String,List<ApiDefinitionEntity>> gatewayApiRuleEntityDecoder(){
return s-> JSON.parseArray(s, ApiDefinitionEntity.class);
}
@Bean
public ConfigService nacosConfigService(NacosPropertiesConfig nacosPropertiesConfig) throws Exception {
Properties properties = new Properties();
properties.put(PropertyKeyConst.SERVER_ADDR, nacosPropertiesConfig.getServerAddr());
properties.put(PropertyKeyConst.NAMESPACE, nacosPropertiesConfig.getNamespace());
return ConfigFactory.createConfigService(properties);
}
}
```
### 创建授权规则与 Nacos 交互类
在前面创建的`auth`包下创建以下两个类：
`AuthorityRuleNacosProvider`，内容如下：
```java
@Component("authRuleNacosProvider")
public class AuthorityRuleNacosProvider implements DynamicRuleProvider<List<AuthorityRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(AuthorityRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<AuthorityRuleEntity>> converter;
@Override
public List<AuthorityRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.AUTH_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get auth rule from nacos, rules : {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`AuthorityRuleNacosPublisher`，内容如下：
```java
@Component("authRuleNacosPublisher")
public class AuthorityRuleNacosPublisher implements DynamicRulePublisher<List<AuthorityRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(AuthorityRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<AuthorityRuleEntity>, String> converter;
@Override
public void publish(String app, List<AuthorityRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publisher auth rules : {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.AUTH_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 创建降级规则与 Nacos 交互类
和前面一样，在前面创建的`degrade`包下创建以下两个类：
`DegradeRuleNacosProvider`，内容如下：
```java
@Component("degradeRuleNacosProvider")
public class DegradeRuleNacosProvider implements DynamicRuleProvider<List<DegradeRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(DegradeRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<DegradeRuleEntity>> converter;
@Override
public List<DegradeRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get degrade rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`DegradeRuleNacosPublisher`，内容如下：
```java
@Component("degradeRuleNacosPublisher")
public class DegradeRuleNacosPublisher implements DynamicRulePublisher<List<DegradeRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(DegradeRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<DegradeRuleEntity>, String> converter;
@Override
public void publish(String app, List<DegradeRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publish degrade rules: {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 创建流控规则与 Nacos 交互类
在前面创建的`flow`包下创建以下两个类：
`FlowRuleNacosProvider`，内容如下：
```java
@Component("flowRuleNacosProvider")
public class FlowRuleNacosProvider implements DynamicRuleProvider<List<FlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(FlowRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<FlowRuleEntity>> converter;
@Override
public List<FlowRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get flow rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`FlowRuleNacosPublisher`，内容如下：
```java
@Component("flowRuleNacosPublisher")
public class FlowRuleNacosPublisher implements DynamicRulePublisher<List<FlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(FlowRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<FlowRuleEntity>, String> converter;
@Override
public void publish(String app, List<FlowRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publish flow rules: {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 创建网关流控规则与 Nacos 交互类
在前面创建的`gateway.api`包下创建以下两个类：
`GatewayApiRuleNacosProvider`，内容如下：
```java
@Component("gatewayApiRuleNacosProvider")
public class GatewayApiRuleNacosProvider implements DynamicRuleProvider<List<ApiDefinitionEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(GatewayApiRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<ApiDefinitionEntity>> converter;
@Override
public List<ApiDefinitionEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.GATEWAY_API_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get gateway api rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`GatewayApiRuleNacosPublisher`，内容如下：
```java
@Component("gatewayApiRuleNacosPublisher")
public class GatewayApiRuleNacosPublisher implements DynamicRulePublisher<List<ApiDefinitionEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(GatewayApiRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<ApiDefinitionEntity>, String> converter;
@Override
public void publish(String app, List<ApiDefinitionEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publish gateway api rules: {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.GATEWAY_API_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
在`gateway.flow`包下创建以下两个类：
`GatewayFlowRuleNacosProvider`，内容如下：
```java
@Component("gatewayFlowRuleNacosProvider")
public class GatewayFlowRuleNacosProvider implements DynamicRuleProvider<List<GatewayFlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(GatewayFlowRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<GatewayFlowRuleEntity>> converter;
@Override
public List<GatewayFlowRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.GATEWAY_FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get gateway flow rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`GatewayFlowRuleNacosPublisher`，内容如下：
```java
@Component("gatewayFlowRuleNacosPublisher")
public class GatewayFlowRuleNacosPublisher implements DynamicRulePublisher<List<GatewayFlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(GatewayFlowRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<GatewayFlowRuleEntity>, String> converter;
@Override
public void publish(String app, List<GatewayFlowRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publish gateway flow rules: {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.GATEWAY_FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 创建热点规则与 Nacos 交互类
在前面创建的`param`包下新建以下两个类：
`ParamRuleNacosProvider`，内容如下：
```java
@Component("paramRuleNacosProvider")
public class ParamRuleNacosProvider implements DynamicRuleProvider<List<ParamFlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(ParamRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<ParamFlowRuleEntity>> converter;
@Override
public List<ParamFlowRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get param rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`ParamRuleNacosPublisher`，内容如下：
```java
@Component("paramRuleNacosPublisher")
public class ParamRuleNacosPublisher implements DynamicRulePublisher<List<ParamFlowRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(ParamRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<ParamFlowRuleEntity>, String> converter;
@Override
public void publish(String app, List<ParamFlowRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publish param rules: {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 创建系统规则与 Nacos 交互类
在前面创建的`system`包下新建以下两个类：
`SystemRuleNacosProvider`，内容如下：
```java
@Component("systemRuleNacosProvider")
public class SystemRuleNacosProvider implements DynamicRuleProvider<List<SystemRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(SystemRuleNacosProvider.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<String, List<SystemRuleEntity>> converter;
@Override
public List<SystemRuleEntity> getRules(String appName) throws Exception {
String rules = configService.getConfig(appName + NacosConfigUtil.SYS_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, 3000);
LOGGER.info("get system rules from nacos, rules: {}", rules);
if (StringUtil.isEmpty(rules)) {
return new ArrayList<>();
}
return converter.convert(rules);
}
}
```
`SystemRuleNacosPublisher`，内容如下：
```java
@Component("systemRuleNacosPublisher")
public class SystemRuleNacosPublisher implements DynamicRulePublisher<List<SystemRuleEntity>> {
private static final Logger LOGGER = LoggerFactory.getLogger(SystemRuleNacosPublisher.class);
@Autowired
private ConfigService configService;
@Autowired
private Converter<List<SystemRuleEntity>, String> converter;
@Override
public void publish(String app, List<SystemRuleEntity> rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}
String convertedRule = converter.convert(rules);
LOGGER.info("sentinel dashboard publisher system rule : {}", convertedRule);
configService.publishConfig(app + NacosConfigUtil.SYS_DATA_ID_POSTFIX,
NacosConfigUtil.GROUP_ID, convertedRule);
}
}
```
### 修改 Controller
1. 修改 `com.alibaba.csp.sentinel.dashboard.controller`包下的`AuthorityRuleController`，内容如下：
```java
@RestController
@RequestMapping(value = "/authority")
public class AuthorityRuleController {
private final Logger logger = LoggerFactory.getLogger(AuthorityRuleController.class);
@Autowired
private SentinelApiClient sentinelApiClient;
@Autowired
private RuleRepository<AuthorityRuleEntity, Long> repository;
@Autowired
@Qualifier("authRuleNacosProvider")
private DynamicRuleProvider<List<AuthorityRuleEntity>> ruleProvider;
@Autowired
@Qualifier("authRuleNacosPublisher")
private DynamicRulePublisher<List<AuthorityRuleEntity>> rulePublisher;
@GetMapping("/rules")
@AuthAction(PrivilegeType.READ_RULE)
public Result<List<AuthorityRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,
@RequestParam String ip,
@RequestParam Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app cannot be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip cannot be null or empty");
}
if (port == null || port <= 0) {
return Result.ofFail(-1, "Invalid parameter: port");
}
try {
// List<AuthorityRuleEntity> rules = sentinelApiClient.fetchAuthorityRulesOfMachine(app, ip, port);
List<AuthorityRuleEntity> rules = ruleProvider.getRules(app);
repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("Error when querying authority rules", throwable);
return Result.ofFail(-1, throwable.getMessage());
}
}
private <R> Result<R> checkEntityInternal(AuthorityRuleEntity entity) {
if (entity == null) {
return Result.ofFail(-1, "bad rule body");
}
if (StringUtil.isBlank(entity.getApp())) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isBlank(entity.getIp())) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (entity.getPort() == null || entity.getPort() <= 0) {
return Result.ofFail(-1, "port can't be null");
}
if (entity.getRule() == null) {
return Result.ofFail(-1, "rule can't be null");
}
if (StringUtil.isBlank(entity.getResource())) {
return Result.ofFail(-1, "resource name cannot be null or empty");
}
if (StringUtil.isBlank(entity.getLimitApp())) {
return Result.ofFail(-1, "limitApp should be valid");
}
if (entity.getStrategy() != RuleConstant.AUTHORITY_WHITE
&& entity.getStrategy() != RuleConstant.AUTHORITY_BLACK) {
return Result.ofFail(-1, "Unknown strategy (must be blacklist or whitelist)");
}
return null;
}
@PostMapping("/rule")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<AuthorityRuleEntity> apiAddAuthorityRule(@RequestBody AuthorityRuleEntity entity) {
Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
entity.setId(null);
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("Failed to add authority rule", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
logger.info("Publish authority rules failed after rule add");
}
return Result.ofSuccess(entity);
}
@PutMapping("/rule/{id}")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<AuthorityRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,
@RequestBody AuthorityRuleEntity entity) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "Invalid id");
}
Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
entity.setId(id);
Date date = new Date();
entity.setGmtCreate(null);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
if (entity == null) {
return Result.ofFail(-1, "Failed to save authority rule");
}
} catch (Throwable throwable) {
logger.error("Failed to save authority rule", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
logger.info("Publish authority rules failed after rule update");
}
return Result.ofSuccess(entity);
}
@DeleteMapping("/rule/{id}")
@AuthAction(PrivilegeType.DELETE_RULE)
public Result<Long> apiDeleteRule(@PathVariable("id") Long id) {
if (id == null) {
return Result.ofFail(-1, "id cannot be null");
}
AuthorityRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
} catch (Exception e) {
return Result.ofFail(-1, e.getMessage());
}
if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
logger.error("Publish authority rules failed after rule delete");
}
return Result.ofSuccess(id);
}
private boolean publishRules(String app, String ip, Integer port) {
List<AuthorityRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
// return sentinelApiClient.setAuthorityRuleOfMachine(app, ip, port, rules);
try {
rulePublisher.publish(app, rules);
return true;
} catch (Exception e) {
return false;
}
}
}
```
主要是将`SentinelApiClient`相关调用改为我们前面创建的一系列`NacosProvider`和`NacosPublisher`类中的调用，与 Nacos 交互。
2. 修改 `com.alibaba.csp.sentinel.dashboard.controller`包下的`DegradeController`，内容如下：
```java
@RestController
@RequestMapping("/degrade")
public class DegradeController {
private final Logger logger = LoggerFactory.getLogger(DegradeController.class);
@Autowired
private RuleRepository<DegradeRuleEntity, Long> repository;
@Autowired
private SentinelApiClient sentinelApiClient;
@Autowired
@Qualifier("degradeRuleNacosProvider")
private DynamicRuleProvider<List<DegradeRuleEntity>> ruleProvider;
@Autowired
@Qualifier("degradeRuleNacosPublisher")
private DynamicRulePublisher<List<DegradeRuleEntity>> rulePublisher;
@GetMapping("/rules.json")
@AuthAction(PrivilegeType.READ_RULE)
public Result<List<DegradeRuleEntity>> apiQueryMachineRules(String app, String ip, Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
try {
// List<DegradeRuleEntity> rules = sentinelApiClient.fetchDegradeRuleOfMachine(app, ip, port);
List<DegradeRuleEntity> rules = ruleProvider.getRules(app);
rules = repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("queryApps error:", throwable);
return Result.ofThrowable(-1, throwable);
}
}
@PostMapping("/rule")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<DegradeRuleEntity> apiAddRule(@RequestBody DegradeRuleEntity entity) {
Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable t) {
logger.error("Failed to add new degrade rule, app={}, ip={}", entity.getApp(), entity.getIp(), t);
return Result.ofThrowable(-1, t);
}
if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
logger.warn("Publish degrade rules failed, app={}", entity.getApp());
}
return Result.ofSuccess(entity);
}
@PutMapping("/rule/{id}")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<DegradeRuleEntity> apiUpdateRule(@PathVariable("id") Long id,
@RequestBody DegradeRuleEntity entity) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "id can't be null or negative");
}
DegradeRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofFail(-1, "Degrade rule does not exist, id=" + id);
}
entity.setApp(oldEntity.getApp());
entity.setIp(oldEntity.getIp());
entity.setPort(oldEntity.getPort());
entity.setId(oldEntity.getId());
Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
entity.setGmtCreate(oldEntity.getGmtCreate());
entity.setGmtModified(new Date());
try {
entity = repository.save(entity);
} catch (Throwable t) {
logger.error("Failed to save degrade rule, id={}, rule={}", id, entity, t);
return Result.ofThrowable(-1, t);
}
if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
logger.warn("Publish degrade rules failed, app={}", entity.getApp());
}
return Result.ofSuccess(entity);
}
@DeleteMapping("/rule/{id}")
@AuthAction(PrivilegeType.DELETE_RULE)
public Result<Long> delete(@PathVariable("id") Long id) {
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
DegradeRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
} catch (Throwable throwable) {
logger.error("Failed to delete degrade rule, id={}", id, throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
logger.warn("Publish degrade rules failed, app={}", oldEntity.getApp());
}
return Result.ofSuccess(id);
}
private boolean publishRules(String app, String ip, Integer port) {
List<DegradeRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
// return sentinelApiClient.setDegradeRuleOfMachine(app, ip, port, rules);
try{
rulePublisher.publish(app, rules);
return true;
}catch (Exception e){
return false;
}
}
private <R> Result<R> checkEntityInternal(DegradeRuleEntity entity) {
if (StringUtil.isBlank(entity.getApp())) {
return Result.ofFail(-1, "app can't be blank");
}
if (StringUtil.isBlank(entity.getIp())) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (entity.getPort() == null || entity.getPort() <= 0) {
return Result.ofFail(-1, "invalid port: " + entity.getPort());
}
if (StringUtil.isBlank(entity.getLimitApp())) {
return Result.ofFail(-1, "limitApp can't be null or empty");
}
if (StringUtil.isBlank(entity.getResource())) {
return Result.ofFail(-1, "resource can't be null or empty");
}
Double threshold = entity.getCount();
if (threshold == null || threshold < 0) {
return Result.ofFail(-1, "invalid threshold: " + threshold);
}
Integer recoveryTimeoutSec = entity.getTimeWindow();
if (recoveryTimeoutSec == null || recoveryTimeoutSec <= 0) {
return Result.ofFail(-1, "recoveryTimeout should be positive");
}
Integer strategy = entity.getGrade();
if (strategy == null) {
return Result.ofFail(-1, "circuit breaker strategy cannot be null");
}
if (strategy < CircuitBreakerStrategy.SLOW_REQUEST_RATIO.getType()
|| strategy > RuleConstant.DEGRADE_GRADE_EXCEPTION_COUNT) {
return Result.ofFail(-1, "Invalid circuit breaker strategy: " + strategy);
}
if (entity.getMinRequestAmount() == null || entity.getMinRequestAmount() <= 0) {
return Result.ofFail(-1, "Invalid minRequestAmount");
}
if (entity.getStatIntervalMs() == null || entity.getStatIntervalMs() <= 0) {
return Result.ofFail(-1, "Invalid statInterval");
}
if (strategy == RuleConstant.DEGRADE_GRADE_RT) {
Double slowRatio = entity.getSlowRatioThreshold();
if (slowRatio == null) {
return Result.ofFail(-1, "SlowRatioThreshold is required for slow request ratio strategy");
} else if (slowRatio < 0 || slowRatio > 1) {
return Result.ofFail(-1, "SlowRatioThreshold should be in range: [0.0, 1.0]");
}
} else if (strategy == RuleConstant.DEGRADE_GRADE_EXCEPTION_RATIO) {
if (threshold > 1) {
return Result.ofFail(-1, "Ratio threshold should be in range: [0.0, 1.0]");
}
}
return null;
}
}
```
3. 修改 `com.alibaba.csp.sentinel.dashboard.controller.v2`包下的`FlowControllerV2`，内容如下：
```java
@RestController
@RequestMapping(value = "/v2/flow")
public class FlowControllerV2 {
private final Logger logger = LoggerFactory.getLogger(FlowControllerV2.class);
@Autowired
private InMemoryRuleRepositoryAdapter<FlowRuleEntity> repository;
// @Autowired
// @Qualifier("flowRuleDefaultProvider")
// private DynamicRuleProvider<List<FlowRuleEntity>> ruleProvider;
// @Autowired
// @Qualifier("flowRuleDefaultPublisher")
// private DynamicRulePublisher<List<FlowRuleEntity>> rulePublisher;
//===============================注入Nacos Provider和 Publisher
@Autowired
@Qualifier("flowRuleNacosProvider")
private DynamicRuleProvider<List<FlowRuleEntity>> ruleProvider;
@Autowired
@Qualifier("flowRuleNacosPublisher")
private DynamicRulePublisher<List<FlowRuleEntity>> rulePublisher;
@GetMapping("/rules")
@AuthAction(PrivilegeType.READ_RULE)
public Result<List<FlowRuleEntity>> apiQueryMachineRules(@RequestParam String app) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
try {
List<FlowRuleEntity> rules = ruleProvider.getRules(app);
if (rules != null && !rules.isEmpty()) {
for (FlowRuleEntity entity : rules) {
entity.setApp(app);
if (entity.getClusterConfig() != null && entity.getClusterConfig().getFlowId() != null) {
entity.setId(entity.getClusterConfig().getFlowId());
}
}
}
rules = repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("Error when querying flow rules", throwable);
return Result.ofThrowable(-1, throwable);
}
}
private <R> Result<R> checkEntityInternal(FlowRuleEntity entity) {
if (entity == null) {
return Result.ofFail(-1, "invalid body");
}
if (StringUtil.isBlank(entity.getApp())) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isBlank(entity.getLimitApp())) {
return Result.ofFail(-1, "limitApp can't be null or empty");
}
if (StringUtil.isBlank(entity.getResource())) {
return Result.ofFail(-1, "resource can't be null or empty");
}
if (entity.getGrade() == null) {
return Result.ofFail(-1, "grade can't be null");
}
if (entity.getGrade() != 0 && entity.getGrade() != 1) {
return Result.ofFail(-1, "grade must be 0 or 1, but " + entity.getGrade() + " got");
}
if (entity.getCount() == null || entity.getCount() < 0) {
return Result.ofFail(-1, "count should be at lease zero");
}
if (entity.getStrategy() == null) {
return Result.ofFail(-1, "strategy can't be null");
}
if (entity.getStrategy() != 0 && StringUtil.isBlank(entity.getRefResource())) {
return Result.ofFail(-1, "refResource can't be null or empty when strategy!=0");
}
if (entity.getControlBehavior() == null) {
return Result.ofFail(-1, "controlBehavior can't be null");
}
int controlBehavior = entity.getControlBehavior();
if (controlBehavior == 1 && entity.getWarmUpPeriodSec() == null) {
return Result.ofFail(-1, "warmUpPeriodSec can't be null when controlBehavior==1");
}
if (controlBehavior == 2 && entity.getMaxQueueingTimeMs() == null) {
return Result.ofFail(-1, "maxQueueingTimeMs can't be null when controlBehavior==2");
}
if (entity.isClusterMode() && entity.getClusterConfig() == null) {
return Result.ofFail(-1, "cluster config should be valid");
}
return null;
}
@PostMapping("/rule")
@AuthAction(value = AuthService.PrivilegeType.WRITE_RULE)
public Result<FlowRuleEntity> apiAddFlowRule(@RequestBody FlowRuleEntity entity) {
Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
entity.setId(null);
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
entity.setLimitApp(entity.getLimitApp().trim());
entity.setResource(entity.getResource().trim());
try {
entity = repository.save(entity);
publishRules(entity.getApp());
} catch (Throwable throwable) {
logger.error("Failed to add flow rule", throwable);
return Result.ofThrowable(-1, throwable);
}
return Result.ofSuccess(entity);
}
@PutMapping("/rule/{id}")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<FlowRuleEntity> apiUpdateFlowRule(@PathVariable("id") Long id,
@RequestBody FlowRuleEntity entity) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "Invalid id");
}
FlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofFail(-1, "id " + id + " does not exist");
}
if (entity == null) {
return Result.ofFail(-1, "invalid body");
}
entity.setApp(oldEntity.getApp());
entity.setIp(oldEntity.getIp());
entity.setPort(oldEntity.getPort());
Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
entity.setId(id);
Date date = new Date();
entity.setGmtCreate(oldEntity.getGmtCreate());
entity.setGmtModified(date);
try {
entity = repository.save(entity);
if (entity == null) {
return Result.ofFail(-1, "save entity fail");
}
publishRules(oldEntity.getApp());
} catch (Throwable throwable) {
logger.error("Failed to update flow rule", throwable);
return Result.ofThrowable(-1, throwable);
}
return Result.ofSuccess(entity);
}
@DeleteMapping("/rule/{id}")
@AuthAction(PrivilegeType.DELETE_RULE)
public Result<Long> apiDeleteRule(@PathVariable("id") Long id) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "Invalid id");
}
FlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
publishRules(oldEntity.getApp());
} catch (Exception e) {
return Result.ofFail(-1, e.getMessage());
}
return Result.ofSuccess(id);
}
private void publishRules(/*@NonNull*/ String app) throws Exception {
List<FlowRuleEntity> rules = repository.findAllByApp(app);
rulePublisher.publish(app, rules);
//发布后暂定一会，防止立即查询 仍然是旧数据
TimeUnit.MILLISECONDS.sleep(500);
}
}
```
4. 修改 `com.alibaba.csp.sentinel.dashboard.controller.gateway`包下的`GatewayApiController`，内容如下：
```java
@RestController
@RequestMapping(value = "/gateway/api")
public class GatewayApiController {
private final Logger logger = LoggerFactory.getLogger(GatewayApiController.class);
@Autowired
private InMemApiDefinitionStore repository;
// @Autowired
// private SentinelApiClient sentinelApiClient;
@Autowired
@Qualifier("gatewayApiRuleNacosProvider")
private DynamicRuleProvider<List<ApiDefinitionEntity>> provider;
@Autowired
@Qualifier("gatewayApiRuleNacosPublisher")
private DynamicRulePublisher<List<ApiDefinitionEntity>> publisher;
@GetMapping("/list.json")
@AuthAction(AuthService.PrivilegeType.READ_RULE)
public Result<List<ApiDefinitionEntity>> queryApis(String app, String ip, Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
try {
// List<ApiDefinitionEntity> apis = sentinelApiClient.fetchApis(app, ip, port).get();
List<ApiDefinitionEntity> apis = provider.getRules(app);
repository.saveAll(apis);
return Result.ofSuccess(apis);
} catch (Throwable throwable) {
logger.error("queryApis error:", throwable);
return Result.ofThrowable(-1, throwable);
}
}
@PostMapping("/new.json")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<ApiDefinitionEntity> addApi(HttpServletRequest request, @RequestBody AddApiReqVo reqVo) {
String app = reqVo.getApp();
if (StringUtil.isBlank(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
ApiDefinitionEntity entity = new ApiDefinitionEntity();
entity.setApp(app.trim());
String ip = reqVo.getIp();
if (StringUtil.isBlank(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
entity.setIp(ip.trim());
Integer port = reqVo.getPort();
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
entity.setPort(port);
// API名称
String apiName = reqVo.getApiName();
if (StringUtil.isBlank(apiName)) {
return Result.ofFail(-1, "apiName can't be null or empty");
}
entity.setApiName(apiName.trim());
// 匹配规则列表
List<ApiPredicateItemVo> predicateItems = reqVo.getPredicateItems();
if (CollectionUtils.isEmpty(predicateItems)) {
return Result.ofFail(-1, "predicateItems can't empty");
}
List<ApiPredicateItemEntity> predicateItemEntities = new ArrayList<>();
for (ApiPredicateItemVo predicateItem : predicateItems) {
ApiPredicateItemEntity predicateItemEntity = new ApiPredicateItemEntity();
// 匹配模式
Integer matchStrategy = predicateItem.getMatchStrategy();
if (!Arrays.asList(URL_MATCH_STRATEGY_EXACT, URL_MATCH_STRATEGY_PREFIX, URL_MATCH_STRATEGY_REGEX).contains(matchStrategy)) {
return Result.ofFail(-1, "invalid matchStrategy: " + matchStrategy);
}
predicateItemEntity.setMatchStrategy(matchStrategy);
// 匹配串
String pattern = predicateItem.getPattern();
if (StringUtil.isBlank(pattern)) {
return Result.ofFail(-1, "pattern can't be null or empty");
}
predicateItemEntity.setPattern(pattern);
predicateItemEntities.add(predicateItemEntity);
}
entity.setPredicateItems(new LinkedHashSet<>(predicateItemEntities));
// 检查API名称不能重复
List<ApiDefinitionEntity> allApis = repository.findAllByMachine(MachineInfo.of(app.trim(), ip.trim(), port));
if (allApis.stream().map(o -> o.getApiName()).anyMatch(o -> o.equals(apiName.trim()))) {
return Result.ofFail(-1, "apiName exists: " + apiName);
}
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("add gateway api error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishApis(app, ip, port)) {
logger.warn("publish gateway apis fail after add");
}
return Result.ofSuccess(entity);
}
@PostMapping("/save.json")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<ApiDefinitionEntity> updateApi(@RequestBody UpdateApiReqVo reqVo) {
String app = reqVo.getApp();
if (StringUtil.isBlank(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
Long id = reqVo.getId();
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
ApiDefinitionEntity entity = repository.findById(id);
if (entity == null) {
return Result.ofFail(-1, "api does not exist, id=" + id);
}
// 匹配规则列表
List<ApiPredicateItemVo> predicateItems = reqVo.getPredicateItems();
if (CollectionUtils.isEmpty(predicateItems)) {
return Result.ofFail(-1, "predicateItems can't empty");
}
List<ApiPredicateItemEntity> predicateItemEntities = new ArrayList<>();
for (ApiPredicateItemVo predicateItem : predicateItems) {
ApiPredicateItemEntity predicateItemEntity = new ApiPredicateItemEntity();
// 匹配模式
int matchStrategy = predicateItem.getMatchStrategy();
if (!Arrays.asList(URL_MATCH_STRATEGY_EXACT, URL_MATCH_STRATEGY_PREFIX, URL_MATCH_STRATEGY_REGEX).contains(matchStrategy)) {
return Result.ofFail(-1, "Invalid matchStrategy: " + matchStrategy);
}
predicateItemEntity.setMatchStrategy(matchStrategy);
// 匹配串
String pattern = predicateItem.getPattern();
if (StringUtil.isBlank(pattern)) {
return Result.ofFail(-1, "pattern can't be null or empty");
}
predicateItemEntity.setPattern(pattern);
predicateItemEntities.add(predicateItemEntity);
}
entity.setPredicateItems(new LinkedHashSet<>(predicateItemEntities));
Date date = new Date();
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("update gateway api error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishApis(app, entity.getIp(), entity.getPort())) {
logger.warn("publish gateway apis fail after update");
}
return Result.ofSuccess(entity);
}
@PostMapping("/delete.json")
@AuthAction(AuthService.PrivilegeType.DELETE_RULE)
public Result<Long> deleteApi(Long id) {
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
ApiDefinitionEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
} catch (Throwable throwable) {
logger.error("delete gateway api error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishApis(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
logger.warn("publish gateway apis fail after delete");
}
return Result.ofSuccess(id);
}
private boolean publishApis(String app, String ip, Integer port) {
List<ApiDefinitionEntity> apis = repository.findAllByMachine(MachineInfo.of(app, ip, port));
try {
publisher.publish(app, apis);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
```
5. 修改 `com.alibaba.csp.sentinel.dashboard.controller.gateway`包下的`GatewayFlowRuleController`，内容如下：
```java
@RestController
@RequestMapping(value = "/gateway/flow")
public class GatewayFlowRuleController {
private final Logger logger = LoggerFactory.getLogger(GatewayFlowRuleController.class);
@Autowired
private InMemGatewayFlowRuleStore repository;
//
// @Autowired
// private SentinelApiClient sentinelApiClient;
@Autowired
@Qualifier("gatewayFlowRuleNacosProvider")
private DynamicRuleProvider<List<GatewayFlowRuleEntity>> provider;
@Autowired
@Qualifier("gatewayFlowRuleNacosPublisher")
private DynamicRulePublisher<List<GatewayFlowRuleEntity>> publisher;
@GetMapping("/list.json")
@AuthAction(AuthService.PrivilegeType.READ_RULE)
public Result<List<GatewayFlowRuleEntity>> queryFlowRules(String app, String ip, Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
try {
// List<GatewayFlowRuleEntity> rules = sentinelApiClient.fetchGatewayFlowRules(app, ip, port).get();
List<GatewayFlowRuleEntity> rules = provider.getRules(app);
repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("query gateway flow rules error:", throwable);
return Result.ofThrowable(-1, throwable);
}
}
@PostMapping("/new.json")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<GatewayFlowRuleEntity> addFlowRule(@RequestBody AddFlowRuleReqVo reqVo) {
String app = reqVo.getApp();
if (StringUtil.isBlank(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
GatewayFlowRuleEntity entity = new GatewayFlowRuleEntity();
entity.setApp(app.trim());
String ip = reqVo.getIp();
if (StringUtil.isBlank(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
entity.setIp(ip.trim());
Integer port = reqVo.getPort();
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
entity.setPort(port);
// API类型, Route ID或API分组
Integer resourceMode = reqVo.getResourceMode();
if (resourceMode == null) {
return Result.ofFail(-1, "resourceMode can't be null");
}
if (!Arrays.asList(RESOURCE_MODE_ROUTE_ID, RESOURCE_MODE_CUSTOM_API_NAME).contains(resourceMode)) {
return Result.ofFail(-1, "invalid resourceMode: " + resourceMode);
}
entity.setResourceMode(resourceMode);
// API名称
String resource = reqVo.getResource();
if (StringUtil.isBlank(resource)) {
return Result.ofFail(-1, "resource can't be null or empty");
}
entity.setResource(resource.trim());
// 针对请求属性
GatewayParamFlowItemVo paramItem = reqVo.getParamItem();
if (paramItem != null) {
GatewayParamFlowItemEntity itemEntity = new GatewayParamFlowItemEntity();
entity.setParamItem(itemEntity);
// 参数属性 0-ClientIP 1-Remote Host 2-Header 3-URL参数 4-Cookie
Integer parseStrategy = paramItem.getParseStrategy();
if (!Arrays.asList(PARAM_PARSE_STRATEGY_CLIENT_IP, PARAM_PARSE_STRATEGY_HOST, PARAM_PARSE_STRATEGY_HEADER
, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) {
return Result.ofFail(-1, "invalid parseStrategy: " + parseStrategy);
}
itemEntity.setParseStrategy(paramItem.getParseStrategy());
// 当参数属性为2-Header 3-URL参数 4-Cookie时，参数名称必填
if (Arrays.asList(PARAM_PARSE_STRATEGY_HEADER, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) {
// 参数名称
String fieldName = paramItem.getFieldName();
if (StringUtil.isBlank(fieldName)) {
return Result.ofFail(-1, "fieldName can't be null or empty");
}
itemEntity.setFieldName(paramItem.getFieldName());
}
String pattern = paramItem.getPattern();
// 如果匹配串不为空，验证匹配模式
if (StringUtil.isNotEmpty(pattern)) {
itemEntity.setPattern(pattern);
Integer matchStrategy = paramItem.getMatchStrategy();
if (!Arrays.asList(PARAM_MATCH_STRATEGY_EXACT, PARAM_MATCH_STRATEGY_CONTAINS, PARAM_MATCH_STRATEGY_REGEX).contains(matchStrategy)) {
return Result.ofFail(-1, "invalid matchStrategy: " + matchStrategy);
}
itemEntity.setMatchStrategy(matchStrategy);
}
}
// 阈值类型 0-线程数 1-QPS
Integer grade = reqVo.getGrade();
if (grade == null) {
return Result.ofFail(-1, "grade can't be null");
}
if (!Arrays.asList(FLOW_GRADE_THREAD, FLOW_GRADE_QPS).contains(grade)) {
return Result.ofFail(-1, "invalid grade: " + grade);
}
entity.setGrade(grade);
// QPS阈值
Double count = reqVo.getCount();
if (count == null) {
return Result.ofFail(-1, "count can't be null");
}
if (count < 0) {
return Result.ofFail(-1, "count should be at lease zero");
}
entity.setCount(count);
// 间隔
Long interval = reqVo.getInterval();
if (interval == null) {
return Result.ofFail(-1, "interval can't be null");
}
if (interval <= 0) {
return Result.ofFail(-1, "interval should be greater than zero");
}
entity.setInterval(interval);
// 间隔单位
Integer intervalUnit = reqVo.getIntervalUnit();
if (intervalUnit == null) {
return Result.ofFail(-1, "intervalUnit can't be null");
}
if (!Arrays.asList(INTERVAL_UNIT_SECOND, INTERVAL_UNIT_MINUTE, INTERVAL_UNIT_HOUR, INTERVAL_UNIT_DAY).contains(intervalUnit)) {
return Result.ofFail(-1, "Invalid intervalUnit: " + intervalUnit);
}
entity.setIntervalUnit(intervalUnit);
// 流控方式 0-快速失败 2-匀速排队
Integer controlBehavior = reqVo.getControlBehavior();
if (controlBehavior == null) {
return Result.ofFail(-1, "controlBehavior can't be null");
}
if (!Arrays.asList(CONTROL_BEHAVIOR_DEFAULT, CONTROL_BEHAVIOR_RATE_LIMITER).contains(controlBehavior)) {
return Result.ofFail(-1, "invalid controlBehavior: " + controlBehavior);
}
entity.setControlBehavior(controlBehavior);
if (CONTROL_BEHAVIOR_DEFAULT == controlBehavior) {
// 0-快速失败, 则Burst size必填
Integer burst = reqVo.getBurst();
if (burst == null) {
return Result.ofFail(-1, "burst can't be null");
}
if (burst < 0) {
return Result.ofFail(-1, "invalid burst: " + burst);
}
entity.setBurst(burst);
} else if (CONTROL_BEHAVIOR_RATE_LIMITER == controlBehavior) {
// 1-匀速排队, 则超时时间必填
Integer maxQueueingTimeoutMs = reqVo.getMaxQueueingTimeoutMs();
if (maxQueueingTimeoutMs == null) {
return Result.ofFail(-1, "maxQueueingTimeoutMs can't be null");
}
if (maxQueueingTimeoutMs < 0) {
return Result.ofFail(-1, "invalid maxQueueingTimeoutMs: " + maxQueueingTimeoutMs);
}
entity.setMaxQueueingTimeoutMs(maxQueueingTimeoutMs);
}
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("add gateway flow rule error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(app, ip, port)) {
logger.warn("publish gateway flow rules fail after add");
}
return Result.ofSuccess(entity);
}
@PostMapping("/save.json")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<GatewayFlowRuleEntity> updateFlowRule(@RequestBody UpdateFlowRuleReqVo reqVo) {
String app = reqVo.getApp();
if (StringUtil.isBlank(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
Long id = reqVo.getId();
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
GatewayFlowRuleEntity entity = repository.findById(id);
if (entity == null) {
return Result.ofFail(-1, "gateway flow rule does not exist, id=" + id);
}
// 针对请求属性
GatewayParamFlowItemVo paramItem = reqVo.getParamItem();
if (paramItem != null) {
GatewayParamFlowItemEntity itemEntity = new GatewayParamFlowItemEntity();
entity.setParamItem(itemEntity);
// 参数属性 0-ClientIP 1-Remote Host 2-Header 3-URL参数 4-Cookie
Integer parseStrategy = paramItem.getParseStrategy();
if (!Arrays.asList(PARAM_PARSE_STRATEGY_CLIENT_IP, PARAM_PARSE_STRATEGY_HOST, PARAM_PARSE_STRATEGY_HEADER
, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) {
return Result.ofFail(-1, "invalid parseStrategy: " + parseStrategy);
}
itemEntity.setParseStrategy(paramItem.getParseStrategy());
// 当参数属性为2-Header 3-URL参数 4-Cookie时，参数名称必填
if (Arrays.asList(PARAM_PARSE_STRATEGY_HEADER, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) {
// 参数名称
String fieldName = paramItem.getFieldName();
if (StringUtil.isBlank(fieldName)) {
return Result.ofFail(-1, "fieldName can't be null or empty");
}
itemEntity.setFieldName(paramItem.getFieldName());
}
String pattern = paramItem.getPattern();
// 如果匹配串不为空，验证匹配模式
if (StringUtil.isNotEmpty(pattern)) {
itemEntity.setPattern(pattern);
Integer matchStrategy = paramItem.getMatchStrategy();
if (!Arrays.asList(PARAM_MATCH_STRATEGY_EXACT, PARAM_MATCH_STRATEGY_CONTAINS, PARAM_MATCH_STRATEGY_REGEX).contains(matchStrategy)) {
return Result.ofFail(-1, "invalid matchStrategy: " + matchStrategy);
}
itemEntity.setMatchStrategy(matchStrategy);
}
} else {
entity.setParamItem(null);
}
// 阈值类型 0-线程数 1-QPS
Integer grade = reqVo.getGrade();
if (grade == null) {
return Result.ofFail(-1, "grade can't be null");
}
if (!Arrays.asList(FLOW_GRADE_THREAD, FLOW_GRADE_QPS).contains(grade)) {
return Result.ofFail(-1, "invalid grade: " + grade);
}
entity.setGrade(grade);
// QPS阈值
Double count = reqVo.getCount();
if (count == null) {
return Result.ofFail(-1, "count can't be null");
}
if (count < 0) {
return Result.ofFail(-1, "count should be at lease zero");
}
entity.setCount(count);
// 间隔
Long interval = reqVo.getInterval();
if (interval == null) {
return Result.ofFail(-1, "interval can't be null");
}
if (interval <= 0) {
return Result.ofFail(-1, "interval should be greater than zero");
}
entity.setInterval(interval);
// 间隔单位
Integer intervalUnit = reqVo.getIntervalUnit();
if (intervalUnit == null) {
return Result.ofFail(-1, "intervalUnit can't be null");
}
if (!Arrays.asList(INTERVAL_UNIT_SECOND, INTERVAL_UNIT_MINUTE, INTERVAL_UNIT_HOUR, INTERVAL_UNIT_DAY).contains(intervalUnit)) {
return Result.ofFail(-1, "Invalid intervalUnit: " + intervalUnit);
}
entity.setIntervalUnit(intervalUnit);
// 流控方式 0-快速失败 2-匀速排队
Integer controlBehavior = reqVo.getControlBehavior();
if (controlBehavior == null) {
return Result.ofFail(-1, "controlBehavior can't be null");
}
if (!Arrays.asList(CONTROL_BEHAVIOR_DEFAULT, CONTROL_BEHAVIOR_RATE_LIMITER).contains(controlBehavior)) {
return Result.ofFail(-1, "invalid controlBehavior: " + controlBehavior);
}
entity.setControlBehavior(controlBehavior);
if (CONTROL_BEHAVIOR_DEFAULT == controlBehavior) {
// 0-快速失败, 则Burst size必填
Integer burst = reqVo.getBurst();
if (burst == null) {
return Result.ofFail(-1, "burst can't be null");
}
if (burst < 0) {
return Result.ofFail(-1, "invalid burst: " + burst);
}
entity.setBurst(burst);
} else if (CONTROL_BEHAVIOR_RATE_LIMITER == controlBehavior) {
// 2-匀速排队, 则超时时间必填
Integer maxQueueingTimeoutMs = reqVo.getMaxQueueingTimeoutMs();
if (maxQueueingTimeoutMs == null) {
return Result.ofFail(-1, "maxQueueingTimeoutMs can't be null");
}
if (maxQueueingTimeoutMs < 0) {
return Result.ofFail(-1, "invalid maxQueueingTimeoutMs: " + maxQueueingTimeoutMs);
}
entity.setMaxQueueingTimeoutMs(maxQueueingTimeoutMs);
}
Date date = new Date();
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("update gateway flow rule error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(app, entity.getIp(), entity.getPort())) {
logger.warn("publish gateway flow rules fail after update");
}
return Result.ofSuccess(entity);
}
@PostMapping("/delete.json")
@AuthAction(AuthService.PrivilegeType.DELETE_RULE)
public Result<Long> deleteFlowRule(Long id) {
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
GatewayFlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
} catch (Throwable throwable) {
logger.error("delete gateway flow rule error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
logger.warn("publish gateway flow rules fail after delete");
}
return Result.ofSuccess(id);
}
private boolean publishRules(String app, String ip, Integer port) {
List<GatewayFlowRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
try {
publisher.publish(app, rules);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
```
6. 修改 `com.alibaba.csp.sentinel.dashboard.controller`包下的`ParamFlowRuleController`，内容如下：
```java
@RestController
@RequestMapping(value = "/paramFlow")
public class ParamFlowRuleController {
private final Logger logger = LoggerFactory.getLogger(ParamFlowRuleController.class);
@Autowired
private SentinelApiClient sentinelApiClient;
@Autowired
private AppManagement appManagement;
@Autowired
private RuleRepository<ParamFlowRuleEntity, Long> repository;
@Autowired
@Qualifier("paramRuleNacosProvider")
private DynamicRuleProvider<List<ParamFlowRuleEntity>> ruleProvider;
@Autowired
@Qualifier("paramRuleNacosPublisher")
private DynamicRulePublisher<List<ParamFlowRuleEntity>> rulePublisher;
private boolean checkIfSupported(String app, String ip, int port) {
try {
return Optional.ofNullable(appManagement.getDetailApp(app))
.flatMap(e -> e.getMachine(ip, port))
.flatMap(m -> VersionUtils.parseVersion(m.getVersion())
.map(v -> v.greaterOrEqual(version020)))
.orElse(true);
// If error occurred or cannot retrieve machine info, return true.
} catch (Exception ex) {
return true;
}
}
@GetMapping("/rules")
@AuthAction(PrivilegeType.READ_RULE)
public Result<List<ParamFlowRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,
@RequestParam String ip,
@RequestParam Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app cannot be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip cannot be null or empty");
}
if (port == null || port <= 0) {
return Result.ofFail(-1, "Invalid parameter: port");
}
if (!checkIfSupported(app, ip, port)) {
return unsupportedVersion();
}
try {
// return sentinelApiClient.fetchParamFlowRulesOfMachine(app, ip, port)
// .thenApply(repository::saveAll)
// .thenApply(Result::ofSuccess)
// .get();
List<ParamFlowRuleEntity> rules = ruleProvider.getRules(app);
repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (ExecutionException ex) {
logger.error("Error when querying parameter flow rules", ex.getCause());
if (isNotSupported(ex.getCause())) {
return unsupportedVersion();
} else {
return Result.ofThrowable(-1, ex.getCause());
}
} catch (Throwable throwable) {
logger.error("Error when querying parameter flow rules", throwable);
return Result.ofFail(-1, throwable.getMessage());
}
}
private boolean isNotSupported(Throwable ex) {
return ex instanceof CommandNotFoundException;
}
@PostMapping("/rule")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<ParamFlowRuleEntity> apiAddParamFlowRule(@RequestBody ParamFlowRuleEntity entity) {
Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) {
return unsupportedVersion();
}
entity.setId(null);
entity.getRule().setResource(entity.getResource().trim());
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
publishRules(entity.getApp(), entity.getIp(), entity.getPort());
return Result.ofSuccess(entity);
} catch (ExecutionException ex) {
logger.error("Error when adding new parameter flow rules", ex.getCause());
if (isNotSupported(ex.getCause())) {
return unsupportedVersion();
} else {
return Result.ofThrowable(-1, ex.getCause());
}
} catch (Throwable throwable) {
logger.error("Error when adding new parameter flow rules", throwable);
return Result.ofFail(-1, throwable.getMessage());
}
}
private <R> Result<R> checkEntityInternal(ParamFlowRuleEntity entity) {
if (entity == null) {
return Result.ofFail(-1, "bad rule body");
}
if (StringUtil.isBlank(entity.getApp())) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isBlank(entity.getIp())) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (entity.getPort() == null || entity.getPort() <= 0) {
return Result.ofFail(-1, "port can't be null");
}
if (entity.getRule() == null) {
return Result.ofFail(-1, "rule can't be null");
}
if (StringUtil.isBlank(entity.getResource())) {
return Result.ofFail(-1, "resource name cannot be null or empty");
}
if (entity.getCount() < 0) {
return Result.ofFail(-1, "count should be valid");
}
if (entity.getGrade() != RuleConstant.FLOW_GRADE_QPS) {
return Result.ofFail(-1, "Unknown mode (blockGrade) for parameter flow control");
}
if (entity.getParamIdx() == null || entity.getParamIdx() < 0) {
return Result.ofFail(-1, "paramIdx should be valid");
}
if (entity.getDurationInSec() <= 0) {
return Result.ofFail(-1, "durationInSec should be valid");
}
if (entity.getControlBehavior() < 0) {
return Result.ofFail(-1, "controlBehavior should be valid");
}
return null;
}
@PutMapping("/rule/{id}")
@AuthAction(AuthService.PrivilegeType.WRITE_RULE)
public Result<ParamFlowRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,
@RequestBody ParamFlowRuleEntity entity) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "Invalid id");
}
ParamFlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofFail(-1, "id " + id + " does not exist");
}
Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}
if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) {
return unsupportedVersion();
}
entity.setId(id);
Date date = new Date();
entity.setGmtCreate(oldEntity.getGmtCreate());
entity.setGmtModified(date);
try {
entity = repository.save(entity);
publishRules(entity.getApp(), entity.getIp(), entity.getPort());
return Result.ofSuccess(entity);
} catch (ExecutionException ex) {
logger.error("Error when updating parameter flow rules, id=" + id, ex.getCause());
if (isNotSupported(ex.getCause())) {
return unsupportedVersion();
} else {
return Result.ofThrowable(-1, ex.getCause());
}
} catch (Throwable throwable) {
logger.error("Error when updating parameter flow rules, id=" + id, throwable);
return Result.ofFail(-1, throwable.getMessage());
}
}
@DeleteMapping("/rule/{id}")
@AuthAction(PrivilegeType.DELETE_RULE)
public Result<Long> apiDeleteRule(@PathVariable("id") Long id) {
if (id == null) {
return Result.ofFail(-1, "id cannot be null");
}
ParamFlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort());
return Result.ofSuccess(id);
} catch (ExecutionException ex) {
logger.error("Error when deleting parameter flow rules", ex.getCause());
if (isNotSupported(ex.getCause())) {
return unsupportedVersion();
} else {
return Result.ofThrowable(-1, ex.getCause());
}
} catch (Throwable throwable) {
logger.error("Error when deleting parameter flow rules", throwable);
return Result.ofFail(-1, throwable.getMessage());
}
}
private void publishRules(String app, String ip, Integer port) throws Exception {
List<ParamFlowRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
// return sentinelApiClient.setParamFlowRuleOfMachine(app, ip, port, rules);
rulePublisher.publish(app, rules);
}
private <R> Result<R> unsupportedVersion() {
return Result.ofFail(4041,
"Sentinel client not supported for parameter flow control (unsupported version or dependency absent)");
}
private final SentinelVersion version020 = new SentinelVersion().setMinorVersion(2);
}
```
7. 修改 `com.alibaba.csp.sentinel.dashboard.controller`包下的`SystemController`，内容如下：
```java
@RestController
@RequestMapping("/system")
public class SystemController {
private final Logger logger = LoggerFactory.getLogger(SystemController.class);
@Autowired
private RuleRepository<SystemRuleEntity, Long> repository;
@Autowired
private SentinelApiClient sentinelApiClient;
@Autowired
@Qualifier("systemRuleNacosProvider")
private DynamicRuleProvider<List<SystemRuleEntity>> ruleProvider;
@Autowired
@Qualifier("systemRuleNacosPublisher")
private DynamicRulePublisher<List<SystemRuleEntity>> rulePublisher;
private <R> Result<R> checkBasicParams(String app, String ip, Integer port) {
if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
if (StringUtil.isEmpty(ip)) {
return Result.ofFail(-1, "ip can't be null or empty");
}
if (port == null) {
return Result.ofFail(-1, "port can't be null");
}
if (port <= 0 || port > 65535) {
return Result.ofFail(-1, "port should be in (0, 65535)");
}
return null;
}
@GetMapping("/rules.json")
@AuthAction(PrivilegeType.READ_RULE)
public Result<List<SystemRuleEntity>> apiQueryMachineRules(String app, String ip,
Integer port) {
Result<List<SystemRuleEntity>> checkResult = checkBasicParams(app, ip, port);
if (checkResult != null) {
return checkResult;
}
try {
// List<SystemRuleEntity> rules = sentinelApiClient.fetchSystemRuleOfMachine(app, ip, port);
List<SystemRuleEntity> rules = ruleProvider.getRules(app);
rules = repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("Query machine system rules error", throwable);
return Result.ofThrowable(-1, throwable);
}
}
private int countNotNullAndNotNegative(Number... values) {
int notNullCount = 0;
for (int i = 0; i < values.length; i++) {
if (values[i] != null && values[i].doubleValue() >= 0) {
notNullCount++;
}
}
return notNullCount;
}
@RequestMapping("/new.json")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<SystemRuleEntity> apiAdd(String app, String ip, Integer port,
Double highestSystemLoad, Double highestCpuUsage, Long avgRt,
Long maxThread, Double qps) {
Result<SystemRuleEntity> checkResult = checkBasicParams(app, ip, port);
if (checkResult != null) {
return checkResult;
}
int notNullCount = countNotNullAndNotNegative(highestSystemLoad, avgRt, maxThread, qps, highestCpuUsage);
if (notNullCount != 1) {
return Result.ofFail(-1, "only one of [highestSystemLoad, avgRt, maxThread, qps,highestCpuUsage] "
+ "value must be set > 0, but " + notNullCount + " values get");
}
if (null != highestCpuUsage && highestCpuUsage > 1) {
return Result.ofFail(-1, "highestCpuUsage must between [0.0, 1.0]");
}
SystemRuleEntity entity = new SystemRuleEntity();
entity.setApp(app.trim());
entity.setIp(ip.trim());
entity.setPort(port);
// -1 is a fake value
if (null != highestSystemLoad) {
entity.setHighestSystemLoad(highestSystemLoad);
} else {
entity.setHighestSystemLoad(-1D);
}
if (null != highestCpuUsage) {
entity.setHighestCpuUsage(highestCpuUsage);
} else {
entity.setHighestCpuUsage(-1D);
}
if (avgRt != null) {
entity.setAvgRt(avgRt);
} else {
entity.setAvgRt(-1L);
}
if (maxThread != null) {
entity.setMaxThread(maxThread);
} else {
entity.setMaxThread(-1L);
}
if (qps != null) {
entity.setQps(qps);
} else {
entity.setQps(-1D);
}
Date date = new Date();
entity.setGmtCreate(date);
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("Add SystemRule error", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(app, ip, port)) {
logger.warn("Publish system rules fail after rule add");
}
return Result.ofSuccess(entity);
}
@GetMapping("/save.json")
@AuthAction(PrivilegeType.WRITE_RULE)
public Result<SystemRuleEntity> apiUpdateIfNotNull(Long id, String app, Double highestSystemLoad,
Double highestCpuUsage, Long avgRt, Long maxThread, Double qps) {
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
SystemRuleEntity entity = repository.findById(id);
if (entity == null) {
return Result.ofFail(-1, "id " + id + " dose not exist");
}
if (StringUtil.isNotBlank(app)) {
entity.setApp(app.trim());
}
if (highestSystemLoad != null) {
if (highestSystemLoad < 0) {
return Result.ofFail(-1, "highestSystemLoad must >= 0");
}
entity.setHighestSystemLoad(highestSystemLoad);
}
if (highestCpuUsage != null) {
if (highestCpuUsage < 0) {
return Result.ofFail(-1, "highestCpuUsage must >= 0");
}
if (highestCpuUsage > 1) {
return Result.ofFail(-1, "highestCpuUsage must <= 1");
}
entity.setHighestCpuUsage(highestCpuUsage);
}
if (avgRt != null) {
if (avgRt < 0) {
return Result.ofFail(-1, "avgRt must >= 0");
}
entity.setAvgRt(avgRt);
}
if (maxThread != null) {
if (maxThread < 0) {
return Result.ofFail(-1, "maxThread must >= 0");
}
entity.setMaxThread(maxThread);
}
if (qps != null) {
if (qps < 0) {
return Result.ofFail(-1, "qps must >= 0");
}
entity.setQps(qps);
}
Date date = new Date();
entity.setGmtModified(date);
try {
entity = repository.save(entity);
} catch (Throwable throwable) {
logger.error("save error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) {
logger.info("publish system rules fail after rule update");
}
return Result.ofSuccess(entity);
}
@RequestMapping("/delete.json")
@AuthAction(PrivilegeType.DELETE_RULE)
public Result<?> delete(Long id) {
if (id == null) {
return Result.ofFail(-1, "id can't be null");
}
SystemRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofSuccess(null);
}
try {
repository.delete(id);
} catch (Throwable throwable) {
logger.error("delete error:", throwable);
return Result.ofThrowable(-1, throwable);
}
if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) {
logger.info("publish system rules fail after rule delete");
}
return Result.ofSuccess(id);
}
private boolean publishRules(String app, String ip, Integer port) {
List<SystemRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
// return sentinelApiClient.setSystemRuleOfMachine(app, ip, port, rules);
try {
rulePublisher.publish(app, rules);
return true;
} catch (Exception e) {
return false;
}
}
}
```
## 修改前端代码
1. 找到`webapp/resources/app/scripts/directives/sidebar/sidebar.html`文件，找到以下代码：
```html
<li ui-sref-active="active" ng-if="!entry.isGateway">
<a ui-sref="dashboard.flowV1({app: entry.app})">
<i class="glyphicon glyphicon-filter"></i> 流控规则</a>
</li>
```
修改为：
```html
<!-- 修改 dashboard.flowV1 为 dashboard.flow-->
<li ui-sref-active="active" ng-if="!entry.isGateway">
<a ui-sref="dashboard.flow({app: entry.app})">
<i class="glyphicon glyphicon-filter"></i> 流控规则</a>
</li>
```
2. 找到`webapp/resources/app/scripts/services/flow_service_v1.js`文件，找到以下代码：
```js
this.newRule = function (rule) {
var param = {
resource: rule.resource,
limitApp: rule.limitApp,
grade: rule.grade,
count: rule.count,
strategy: rule.strategy,
refResource: rule.refResource,
controlBehavior: rule.controlBehavior,
warmUpPeriodSec: rule.warmUpPeriodSec,
maxQueueingTimeMs: rule.maxQueueingTimeMs,
app: rule.app,
ip: rule.ip,
port: rule.port
};
return $http({
url: '/v1/flow/rule',
data: rule,
method: 'POST'
});
};
```
修改为：
```js
this.newRule = function (rule) {
var param = {
resource: rule.resource,
limitApp: rule.limitApp,
grade: rule.grade,
count: rule.count,
strategy: rule.strategy,
refResource: rule.refResource,
controlBehavior: rule.controlBehavior,
warmUpPeriodSec: rule.warmUpPeriodSec,
maxQueueingTimeMs: rule.maxQueueingTimeMs,
app: rule.app,
ip: rule.ip,
port: rule.port
};
return $http({
url: '/v2/flow/rule',
data: rule,
method: 'POST'
});
};
```
主要是将 url 里的 v1 改为 v2。
3. 找到`webapp/resources/app/scripts/controllers/identity.js`文件，找到以下代码：
```js
function saveFlowRule() {
if (!FlowService.checkRuleValid(flowRuleDialogScope.currentRule)) {
return;
}
FlowService.newRule(flowRuleDialogScope.currentRule).success(function (data) {
if (data.code === 0) {
flowRuleDialog.close();
let url = '/dashboard/flow/' + $scope.app;
$location.path(url);
} else {
alert('失败：' + data.msg);
}
}).error((data, header, config, status) => {
alert('未知错误');
});
}
```
修改为：
```js
function saveFlowRule() {
if (!FlowService.checkRuleValid(flowRuleDialogScope.currentRule)) {
return;
}
FlowService.newRule(flowRuleDialogScope.currentRule).success(function (data) {
if (data.code === 0) {
flowRuleDialog.close();
let url = '/dashboard/v2/flow/' + $scope.app;
$location.path(url);
} else {
alert('失败：' + data.msg);
}
}).error((data, header, config, status) => {
alert('未知错误');
});
}
```
主要是将跳转到 v1 版本的流控界面改为跳转到 v2 版本的流控界面。
4. 找到`webapp/resources/app/views/flow_v2.html`文件，找到以下代码：
```html
<a class="btn btn-default-inverse" style="float: right; margin-right: 10px;" ui-sref="dashboard.flowV1({app: app})">
回到单机页面
</a>
```
将其注释掉或删掉。
## 修改的文件总览
| 分类 | 完整文件名 |
| ---- | ------------------------------------------------------------ |
| 后端 | pom.xml |
| 后端 | application.properties |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosPropertiesConfig |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfig |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.auth.AuthorityRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.auth.AuthorityRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade.DegradeRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade.DegradeRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.flow.FlowRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.flow.FlowRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api.GatewayApiRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api.GatewayApiRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow.GatewayFlowRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow.GatewayFlowRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.param.ParamRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.param.ParamRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.system.SystemRuleNacosProvider |
| 后端 | com.alibaba.csp.sentinel.dashboard.rule.nacos.system.SystemRuleNacosPublisher |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.gateway.GatewayApiController |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.gateway.GatewayFlowRuleController |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2 |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.DegradeController |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController |
| 后端 | com.alibaba.csp.sentinel.dashboard.controller.SystemController |
| 前端 | webapp/resources/app/scripts/directives/sidebar/sidebar.html |
| 前端 | webapp/resources/app/scripts/services/flow_service_v1.js |
| 前端 | webapp/resources/app/scripts/controllers/identity.js |
| 前端 | webapp/resources/app/views/flow_v2.html |
至此改造基本完毕。
## 编译打包测试
### 编译前端
进入项目 webapp/resources 目录，
运行
```shell
npm install
```
### 编译打包后端
进入项目 sentienl-dashboard 目录，
运行
```shell
mvn clean package
```
> 如果报错，则进入上级目录 sentinel ，执行 mvn install 后重新打包。
之后会在 target 目录下生成 sentinel-dashboard.jar 。
通过以下命令运行
```shell
java -Dserver.port=8888 -Dcsp.sentinel.dashboard.server=localhost:8888 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard.jar
```
改造完毕。
改造sentinel-dashboard，使用Nacos持久化规则（详细）
