content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.apache.ambari.server.security.authentication.jwt;
  
  import static org.apache.ambari.server.configuration.AmbariServerConfigurationCategory.SSO_CONFIGURATION;
  
  import java.util.Collection;
  
  import org.apache.ambari.server.configuration.AmbariServerConfigurationProvider;
  import org.apache.ambari.server.events.publishers.AmbariEventPublisher;
  import org.apache.ambari.server.orm.entities.AmbariConfigurationEntity;
  
  import com.google.inject.Inject;
  import com.google.inject.Singleton;
  import com.google.inject.persist.jpa.AmbariJpaPersistService;
  
  /**
   * JwtAuthenticationPropertiesProvider manages a {@link JwtAuthenticationProperties} instance by
   * lazily loading the properties if needed and refreshing the properties if updates are made to the
   * sso-configuration category of the Ambari configuration data.
   * <p>
   * The {@link JwtAuthenticationProperties} are updated upon events received from the {@link AmbariEventPublisher}.
   */
  @Singleton
  public class JwtAuthenticationPropertiesProvider extends AmbariServerConfigurationProvider<JwtAuthenticationProperties> {
  
    @Inject
    public JwtAuthenticationPropertiesProvider(AmbariEventPublisher ambariEventPublisher, AmbariJpaPersistService ambariJpaPersistService) {
      super(SSO_CONFIGURATION, ambariEventPublisher, ambariJpaPersistService);
    }
  
    /**
     * Creates a JwtAuthenticationProperties from a list of {@link AmbariConfigurationEntity}s.
     *
     * @param configurationEntities a list of {@link AmbariConfigurationEntity}s
     * @return a filled in {@link JwtAuthenticationProperties}
     */
    @Override
    protected JwtAuthenticationProperties loadInstance(Collection<AmbariConfigurationEntity> configurationEntities) {
      return new JwtAuthenticationProperties(toProperties(configurationEntities));
    }
  }
  