content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org and other contributors.                    ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.limiter.metric;
  
  import java.lang.reflect.Method;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.miaixz.bus.core.xyz.MethodKit;
  import org.miaixz.bus.core.xyz.ObjectKit;
  import org.miaixz.bus.core.xyz.StringKit;
  import org.miaixz.bus.limiter.Provider;
  import org.miaixz.bus.limiter.magic.StrategyMode;
  
  /**
   * FALLBACK 模式处理
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  public class FallbackProvider implements Provider {
  
      private final Map<String, Method> map = new ConcurrentHashMap<>();
  
      @Override
      public StrategyMode get() {
          return StrategyMode.FALLBACK;
      }
  
      @Override
      public Object process(Object bean, Method method, Object[] args) {
          // 合成方法名称
          String fallbackMethodName = StringKit.format("{}Fallback", method.getName());
  
          Method fallbackMethod;
          // 缓存操作
          if (map.containsKey(fallbackMethodName)) {
              fallbackMethod = map.get(fallbackMethodName);
          } else {
              fallbackMethod = MethodKit.getMethod(bean.getClass(), fallbackMethodName, method.getParameterTypes());
              map.put(fallbackMethodName, fallbackMethod);
          }
  
          if (ObjectKit.isNull(fallbackMethod)) {
              throw new RuntimeException(StringKit.format(
                      "Can't find fallback method [{}] in bean [{}]",
                      fallbackMethodName,
                      bean.getClass().getName()));
          }
  
          return MethodKit.invoke(bean, fallbackMethod, args);
      }
  
  }
  