content: /*
   * Copyright 1999-2023 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.config.server.configuration;
  
  import com.alibaba.nacos.config.server.filter.CircuitFilter;
  import com.alibaba.nacos.config.server.filter.NacosWebFilter;
  import com.alibaba.nacos.core.code.ControllerMethodsCache;
  import com.alibaba.nacos.core.web.NacosWebBean;
  import com.alibaba.nacos.persistence.configuration.condition.ConditionDistributedEmbedStorage;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
  import org.springframework.boot.web.servlet.FilterRegistrationBean;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Conditional;
  import org.springframework.context.annotation.Configuration;
  
  import javax.annotation.PostConstruct;
  
  /**
   * Nacos Config {@link Configuration} includes required Spring components.
   *
   * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
   * @since 0.2.2
   */
  @Configuration
  @NacosWebBean
  public class NacosConfigConfiguration {
      
      private final ControllerMethodsCache methodsCache;
      
      public NacosConfigConfiguration(ControllerMethodsCache methodsCache) {
          this.methodsCache = methodsCache;
      }
      
      @PostConstruct
      public void init() {
          methodsCache.initClassMethod("com.alibaba.nacos.config.server.controller");
      }
      
      @Bean
      @ConditionalOnProperty(name = "nacos.web.charset.filter", havingValue = "nacos", matchIfMissing = true)
      public FilterRegistrationBean<NacosWebFilter> nacosWebFilterRegistration() {
          FilterRegistrationBean<NacosWebFilter> registration = new FilterRegistrationBean<>();
          registration.setFilter(nacosWebFilter());
          registration.addUrlPatterns("/v1/cs/*");
          registration.setName("nacosWebFilter");
          registration.setOrder(1);
          return registration;
      }
      
      @Bean
      public NacosWebFilter nacosWebFilter() {
          return new NacosWebFilter();
      }
      
      @Conditional(ConditionDistributedEmbedStorage.class)
      @Bean
      public FilterRegistrationBean<CircuitFilter> transferToLeaderRegistration() {
          FilterRegistrationBean<CircuitFilter> registration = new FilterRegistrationBean<>();
          registration.setFilter(transferToLeader());
          registration.addUrlPatterns("/v1/cs/*");
          registration.setName("curcuitFilter");
          registration.setOrder(6);
          return registration;
      }
      
      @Conditional(ConditionDistributedEmbedStorage.class)
      @Bean
      public CircuitFilter transferToLeader() {
          return new CircuitFilter();
      }
      
  }
  