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Shaded version of Apache Hive JDBC driver for Presto

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/**
 * 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.hive.service.auth;

import javax.security.sasl.AuthenticationException;

import com.facebook.presto.hive.jdbc.$internal.org.apache.hadoop.hive.conf.HiveConf;
import com.facebook.presto.hive.jdbc.$internal.org.apache.hadoop.util.ReflectionUtils;

public class CustomAuthenticationProviderImpl
  implements PasswdAuthenticationProvider {

  Class customHandlerClass;
  PasswdAuthenticationProvider customProvider;

  @SuppressWarnings("unchecked")
  CustomAuthenticationProviderImpl () {
    HiveConf conf = new HiveConf();
    this.customHandlerClass = (Class)
        conf.getClass(
            HiveConf.ConfVars.HIVE_SERVER2_CUSTOM_AUTHENTICATION_CLASS.varname,
            PasswdAuthenticationProvider.class);
    this.customProvider =
        ReflectionUtils.newInstance(this.customHandlerClass, conf);
  }

  @Override
  public void Authenticate(String user, String  password)
      throws AuthenticationException {
    this.customProvider.Authenticate(user, password);
  }

}