/** @file

    A brief file description

    @section license License

    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.
*/

#ifndef ATS_REWRITE_DRIVER_FACTORY_H_
#define ATS_REWRITE_DRIVER_FACTORY_H_

#include <set>

#include "net/instaweb/system/public/system_rewrite_driver_factory.h"
#include "net/instaweb/util/public/md5_hasher.h"
#include "net/instaweb/util/public/scoped_ptr.h"


namespace net_instaweb {


  class AbstractSharedMem;
  //class NgxMessageHandler;
  //class NgxRewriteOptions;
  class AtsServerContext;
  class AtsThreadSystem;
  class GoogleMessageHandler;
  //class NgxUrlAsyncFetcher;
  class SharedCircularBuffer;
  class SharedMemRefererStatistics;
  class SharedMemStatistics;
  class SlowWorker;
  class StaticAssetManager;
  class Statistics;
  class StaticAssetManager;
  //class SystemCaches;

class AtsRewriteDriverFactory : public SystemRewriteDriverFactory {
 public:
  explicit AtsRewriteDriverFactory(const ProcessContext& process_context,
				   AtsThreadSystem* thread_system,
				   StringPiece hostname, int port);
  virtual ~AtsRewriteDriverFactory();

  virtual Hasher* NewHasher();
  virtual MessageHandler* DefaultHtmlParseMessageHandler();
  virtual MessageHandler* DefaultMessageHandler();
  virtual FileSystem* DefaultFileSystem();
  virtual Timer* DefaultTimer();
  virtual NamedLockManager* DefaultLockManager();
  virtual RewriteOptions* NewRewriteOptions();
  virtual ServerContext* NewDecodingServerContext();

  virtual bool UseBeaconResultsInFilters() const {
    return true;
  }

  //virtual void InitStaticAssetManager(StaticAssetManager* static_js_manager);

  // Initializes all the statistics objects created transitively by
  // AtsRewriteDriverFactory, including nginx-specific and
  // platform-independent statistics.
  static void InitStats(Statistics* statistics);

  virtual net_instaweb::QueuedWorkerPool* CreateWorkerPool(WorkerPoolCategory pool,
                                                           StringPiece name);
  virtual void NonStaticInitStats(Statistics* statistics) {
    InitStats(statistics);
  }

  AtsServerContext* MakeAtsServerContext();
  ServerContext* NewServerContext();
  //AbstractSharedMem* shared_mem_runtime() const {
  //  return shared_mem_runtime_.get();
  //}

  // Starts pagespeed threads if they've not been started already.  Must be
  // called after the caller has finished any forking it intends to do.
  void StartThreads();
  bool use_per_vhost_statistics() const {
    return use_per_vhost_statistics_;
  }
  void set_use_per_vhost_statistics(bool x) {
    use_per_vhost_statistics_ = x;
  }

 protected:
 private:
  //scoped_ptr<AbstractSharedMem> shared_mem_runtime_;
  GoogleMessageHandler* ats_message_handler_;
  GoogleMessageHandler* ats_html_parse_message_handler_;
  bool use_per_vhost_statistics_;
  bool threads_started_;
};

}  // namespace net_instaweb

#endif // ATS_REWRITE_DRIVER_FACTORY_H_
