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 com.datastax.dse.driver.internal.core.auth;
  
  import com.datastax.oss.driver.api.core.auth.AuthenticationException;
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.config.DriverOption;
  import com.datastax.oss.driver.api.core.metadata.EndPoint;
  import java.util.ArrayList;
  import java.util.List;
  
  public class AuthUtils {
    /**
     * Utility function that checks for the existence of settings and throws an exception if they
     * aren't present
     *
     * @param config Current working driver configuration
     * @param authenticatorName name of authenticator for logging purposes
     * @param endPoint the host we are attempting to authenticate to
     * @param options a list of DriverOptions to check to see if they are present
     */
    public static void validateConfigPresent(
        DriverExecutionProfile config,
        String authenticatorName,
        EndPoint endPoint,
        DriverOption... options) {
      List<DriverOption> missingOptions = new ArrayList<>();
      for (DriverOption option : options) {
  
        if (!config.isDefined(option)) {
          missingOptions.add(option);
        }
        if (missingOptions.size() > 0) {
          String message =
              "Missing required configuration options for authenticator " + authenticatorName + ":";
          for (DriverOption missingOption : missingOptions) {
            message = message + " " + missingOption.getPath();
          }
          throw new AuthenticationException(endPoint, message);
        }
      }
    }
  }
  