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.jtokkit.api;
  
  import java.util.Arrays;
  import java.util.Map;
  import java.util.Optional;
  import java.util.function.Function;
  import java.util.stream.Collectors;
  
  public enum EncodingType {
      R50K_BASE("r50k_base"),
      P50K_BASE("p50k_base"),
      P50K_EDIT("p50k_edit"),
      CL100K_BASE("cl100k_base"),
      QWEN("qwen")
      ;
  
      private static final Map<String, EncodingType> nameToEncodingType = Arrays.stream(values())
              .collect(Collectors.toMap(EncodingType::getName, Function.identity()));
  
      private final String name;
  
      EncodingType(final String name) {
          this.name = name;
      }
  
      public String getName() {
          return name;
      }
  
      public static Optional<EncodingType> fromName(final String name) {
          return Optional.ofNullable(nameToEncodingType.get(name));
      }
  }
  