Logger.h

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/***************************************************************************
 *
 * Copyright (C) 2009-2011 Cassio Neri Moreira
 *
 * This file is part of the KeyValue library.
 *
 * The KeyValue library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * The KeyValue library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with KeyValue. If not, see <http://www.gnu.org/licenses/>.
 *
 * If you modify this library, or any covered work, by linking or combining
 * it with Excel (or a modified version of that program), containing parts
 * covered by the terms of End-User License Agreement for Microsoft
 * Software, the licensors of KeyValue grant you additional permission to
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 **************************************************************************/

#ifndef KEYVALUE_SYS_LOGGER_LOGGER_H_
#define KEYVALUE_SYS_LOGGER_LOGGER_H_

#include "keyvalue/value/PtrTraits.h"
#include "keyvalue/util/Global.h"
#include "keyvalue/value/Object.h"

namespace keyvalue {

// Forward declaration
class Message;

namespace logger {

class Logger :

  public value::Object {

public:

  enum Device {
    Console,  
    File,     
    Standard  
  };

  virtual unsigned int
  getLevel() const = 0;

  virtual void
  setLevel(unsigned int level) = 0;

  virtual bool
  log(const Message& message) = 0;

}; // class Logger

void
resetGlobal();

}  // namespace logger

namespace util {

template <>
Global<logger::Logger>::Global();

} // namespace util

namespace value {

template <>
struct PtrTraits<logger::Logger> {
  typedef ::boost::shared_ptr<logger::Logger> Type_;
};

} // namespace value

} // namespace keyvalue

#endif // KEYVALUE_SYS_LOGGER_LOGGER_H_