content: /*
   * Copyright 2017-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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 org.activiti.cloud.services.common.security.jwt;
  
  import java.security.Principal;
  import java.util.Optional;
  import java.util.function.Function;
  import org.springframework.lang.NonNull;
  import org.springframework.security.oauth2.jwt.Jwt;
  import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;
  
  public class JwtAccessTokenProvider {
  
      private final Function<Jwt, JwtAdapter> function;
  
      public JwtAccessTokenProvider(Function<Jwt, JwtAdapter> supplier) {
          this.function = supplier;
      }
  
      public JwtAdapter accessToken(@NonNull Jwt jwt) {
          return function.apply(jwt);
      }
  
      public Optional<JwtAdapter> accessToken(@NonNull Principal principal) {
          return Optional
              .of(principal)
              .filter(JwtAuthenticationToken.class::isInstance)
              .map(JwtAuthenticationToken.class::cast)
              .map(jwtAuthenticationToken -> accessToken(jwtAuthenticationToken.getToken()));
      }
  }
  