content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * 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.langengine.core.chain;
  
  import com.alibaba.langengine.core.callback.ExecutionContext;
  import lombok.Data;
  
  import java.util.List;
  import java.util.Map;
  import java.util.function.Consumer;
  import java.util.function.Function;
  
  /**
   * Chain transform chain output.
   * 链变换链输出。
   *
   * @author xiaoxuan.lp
   */
  @Data
  public class TransformChain extends Chain {
  
      private List<String> inputVariables;
  
      private List<String> outputVariables;
  
      private Function<Map<String, Object>, Map<String, Object>> transform;
  
      @Override
      public Map<String, Object> call(Map<String, Object> inputs, ExecutionContext executionContext, Consumer<String> consumer, Map<String, Object> extraAttributes) {
          return transform.apply(inputs);
      }
  
      @Override
      public List<String> getInputKeys() {
          return inputVariables;
      }
  
      @Override
      public List<String> getOutputKeys() {
          return outputVariables;
      }
  }
  