////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2017 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 Max Neunhoeffer
////////////////////////////////////////////////////////////////////////////////

#ifndef APPLICATION_FEATURES_AQL_FEATURE_H
#define APPLICATION_FEATURES_AQL_FEATURE_H 1

#include "ApplicationFeatures/ApplicationFeature.h"

#include "Basics/Mutex.h"

namespace arangodb {
class AqlFeature final : public application_features::ApplicationFeature {
  static AqlFeature* _AQL;
  static Mutex _aqlFeatureMutex;
 public:
  explicit AqlFeature(application_features::ApplicationServer*);

 public:
  static AqlFeature* lease();
  static void unlease();
  void start() override final;
  void stop() override final;
 
 private:
  uint64_t _numberLeases;
  bool _isStopped;
};
}

#endif