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.celeborn.common.network.sasl.anonymous;
  
  import static org.apache.celeborn.common.network.sasl.SaslUtils.*;
  
  import java.security.Provider;
  import java.security.Security;
  
  /**
   * This is a Java Security Provider that adds support for the ANONYMOUS SASL mechanism. It allows
   * for the registration of SASL client and server factories for ANONYMOUS authentication.
   *
   * <p>This provider registers the necessary SASL factories to enable ANONYMOUS SASL mechanism
   * authentication.
   */
  public final class AnonymousSaslProvider extends Provider {
  
    private static boolean init = false;
  
    private AnonymousSaslProvider() {
      super("AnonymousSasl", 1.0, "ANONYMOUS SASL MECHANISM PROVIDER");
      put("SaslClientFactory." + ANONYMOUS, AnonymousSaslClientFactory.class.getName());
      put("SaslServerFactory." + ANONYMOUS, AnonymousSaslServerFactory.class.getName());
    }
  
    public static synchronized void initializeIfNeeded() {
      if (!init) {
        AnonymousSaslProvider provider = new AnonymousSaslProvider();
        Security.addProvider(provider);
        init = true;
      }
    }
  }
  