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Gravitino is a high-performance, geo-distributed and federated metadata lake.

There is a newer version: 0.6.1-incubating

/*
 * 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.gravitino.server.authentication;

import java.util.List;
import org.apache.gravitino.Config;

public class ServerAuthenticator {

  private List authenticators;

  private ServerAuthenticator() {}

  private static class InstanceHolder {
    private static final ServerAuthenticator INSTANCE = new ServerAuthenticator();
  }

  /**
   * Get the singleton instance of the ServerAuthenticator.
   *
   * @return The singleton instance of the ServerAuthenticator.
   */
  public static ServerAuthenticator getInstance() {
    return ServerAuthenticator.InstanceHolder.INSTANCE;
  }

  /**
   * Initialize the server authenticator.
   *
   * @param config The configuration object to initialize the authenticator.
   */
  public void initialize(Config config) {
    // Create and initialize Authenticator related modules
    this.authenticators = AuthenticatorFactory.createAuthenticators(config);
    for (Authenticator authenticator : authenticators) {
      authenticator.initialize(config);
    }
  }

  public List authenticators() {
    return authenticators;
  }
}