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;
  
  import com.alibaba.langengine.core.jtokkit.api.Encoding;
  import com.alibaba.langengine.core.jtokkit.api.EncodingType;
  import com.alibaba.langengine.core.jtokkit.api.ModelType;
  
  import java.util.Optional;
  
  /**
   * {@link #getEncoding(EncodingType)} or {@link #getEncoding(String)} method is called.
   * When one of these methods is called, the requested {@link EncodingType} is registered.
   */
  final class LazyEncodingRegistry extends AbstractEncodingRegistry {
  
      @Override
      public Encoding getEncoding(final EncodingType encodingType) {
          addEncoding(encodingType);
          return super.getEncoding(encodingType);
      }
  
      @Override
      public Optional<Encoding> getEncoding(final String encodingName) {
          EncodingType.fromName(encodingName).ifPresent(this::addEncoding);
  
          return super.getEncoding(encodingName);
      }
  
      @Override
      public Encoding getEncodingForModel(final ModelType modelType) {
          addEncoding(modelType.getEncodingType());
          return super.getEncodingForModel(modelType);
      }
  }
  