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.model.fastchat.completion.chat;
  
  import com.fasterxml.jackson.annotation.JsonIgnore;
  import com.fasterxml.jackson.annotation.JsonProperty;
  import lombok.Data;
  import lombok.NoArgsConstructor;
  import lombok.NonNull;
  
  import java.util.function.Function;
  
  @Data
  @NoArgsConstructor
  public class ChatFunction {
  
      /**
       * The name of the function being called.
       */
      @NonNull
      private String name;
  
      /**
       * A description of what the function does, used by the model to choose when and how to call the function.
       */
      private String description;
  
      /**
       * The parameters the functions accepts.
       */
      @JsonProperty("parameters")
      private Class<?> parametersClass;
  
      @JsonIgnore
      private Function<Object, Object> executor;
  
      public static Builder builder() {
          return new Builder();
      }
  
      public static class Builder {
          private String name;
          private String description;
          private Class<?> parameters;
          private Function<Object, Object> executor;
  
          public Builder name(String name) {
              this.name = name;
              return this;
          }
  
          public Builder description(String description) {
              this.description = description;
              return this;
          }
  
          public <T> Builder executor(Class<T> requestClass, Function<T, Object> executor) {
              this.parameters = requestClass;
              this.executor = (Function<Object, Object>) executor;
              return this;
          }
  
          public ChatFunction build() {
              ChatFunction chatFunction = new ChatFunction();
              chatFunction.setName(name);
              chatFunction.setDescription(description);
              chatFunction.setParametersClass(parameters);
              chatFunction.setExecutor(executor);
              return chatFunction;
          }
      }
  }