text: ////////////////////////////////////////////////////////////////////////////////
  /// DISCLAIMER
  ///
  /// Copyright 2016 ArangoDB GmbH, Cologne, Germany
  ///
  /// Licensed 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.
  ///
  /// Copyright holder is ArangoDB GmbH, Cologne, Germany
  ///
  /// @author Dr. Frank Celler
  ////////////////////////////////////////////////////////////////////////////////
  
  #ifndef APPLICATION_FEATURES_INIT_DATABASE_FEATURE_H
  #define APPLICATION_FEATURES_INIT_DATABASE_FEATURE_H 1
  
  #include "ApplicationFeatures/ApplicationFeature.h"
  
  namespace arangodb {
  class InitDatabaseFeature final
      : public application_features::ApplicationFeature {
   public:
    InitDatabaseFeature(application_features::ApplicationServer* server,
                   std::vector<std::string> const& nonServerFeatures);
  
   public:
    std::string const& defaultPassword() const { return _password; }
    bool isInitDatabase() const { return _initDatabase; }
    bool restoreAdmin() const { return _restoreAdmin; }
  
   private:
    bool _initDatabase = false;
    bool _restoreAdmin = false;
    std::string _password;
  
   public:
    void collectOptions(std::shared_ptr<options::ProgramOptions>) override final;
    void validateOptions(std::shared_ptr<options::ProgramOptions>) override final;
    void prepare() override final;
  
   private:
    void checkEmptyDatabase();
    std::string readPassword(std::string const&);
  
   private:
    bool _seenPassword = false;
    std::vector<std::string> _nonServerFeatures;
  };
  }
  
  #endif
  