/*
 * Copyright 2010 Google Inc.
 *
 * 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.
 */

// Author: jmaessen@google.com (Jan Maessen)

#ifndef NET_INSTAWEB_HTMLPARSE_PUBLIC_FILE_STATISTICS_LOG_H_
#define NET_INSTAWEB_HTMLPARSE_PUBLIC_FILE_STATISTICS_LOG_H_

#include "net/instaweb/htmlparse/public/statistics_log.h"
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/file_system.h"

namespace net_instaweb {

class MessageHandler;

// Statistics logger that sends its output to a file.
class FileStatisticsLog : public StatisticsLog {
 public:
  // Note: calling context responsible for closing & cleaning up file.
  explicit FileStatisticsLog(FileSystem::OutputFile* file,
                             MessageHandler* message_handler);
  virtual ~FileStatisticsLog();
  virtual void LogStat(const char *statName, int value);

 private:
  FileSystem::OutputFile* file_;
  MessageHandler* message_handler_;

  DISALLOW_COPY_AND_ASSIGN(FileStatisticsLog);
};

}  // namespace net_instaweb

#endif  // NET_INSTAWEB_HTMLPARSE_PUBLIC_FILE_STATISTICS_LOG_H_