content: /*
   * Copyright 2013-2023 the original author or authors.
   *
   * 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
   *
   *      https://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.cloud.circuitbreaker.sentinel.feign;
  
  import java.lang.reflect.Method;
  import java.util.Map;
  
  import feign.Feign;
  import feign.Target;
  
  import org.springframework.cloud.client.circuitbreaker.AbstractCircuitBreakerFactory;
  import org.springframework.cloud.openfeign.CircuitBreakerNameResolver;
  
  import static com.alibaba.cloud.circuitbreaker.sentinel.feign.CircuitBreakerRuleChangeListener.getConfigurations;
  
  /**
   * Feign client circuit breaker name resolver.
   *
   * @author freeman
   * @since 2021.0.1.0
   * @see CircuitBreakerNameResolver
   */
  @SuppressWarnings("rawtypes")
  public class FeignClientCircuitNameResolver implements CircuitBreakerNameResolver {
  
  	private final Map configurations;
  
  	public FeignClientCircuitNameResolver(AbstractCircuitBreakerFactory factory) {
  		configurations = getConfigurations(factory);
  	}
  
  	@Override
  	public String resolveCircuitBreakerName(String feignClientName, Target<?> target,
  			Method method) {
  		String key = getKey(feignClientName, target, method);
  
  		if (configurations != null && configurations.containsKey(key)) {
  			return key;
  		}
  
  		return feignClientName;
  	}
  
  	private String getKey(String feignClientName, Target<?> target, Method method) {
  		String key = Feign.configKey(target.type(), method);
  		return feignClientName + key.substring(key.indexOf('#'));
  	}
  
  }
  