itkLoggerBase.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkLoggerBase.h,v $
  Language:  C++
  Date:      $Date: 2007/05/21 09:08:55 $
  Version:   $Revision: 1.7 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/

#ifndef __itkLoggerBase_h
#define __itkLoggerBase_h

#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkMultipleLogOutput.h"
#include "itkRealTimeClock.h"

namespace itk
{
class ITKCommon_EXPORT LoggerBase : public Object
{

public:
  
  typedef LoggerBase                Self;
  typedef Object                    Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkTypeMacro( LoggerBase, Object );

  typedef  MultipleLogOutput::OutputType   OutputType;
  
  typedef enum
    {
    MUSTFLUSH=0,
    FATAL,
    CRITICAL,
    WARNING,
    INFO,
    DEBUG,
    NOTSET
    } PriorityLevelType;

  itkSetStringMacro(Name);
  itkGetStringMacro(Name);
  
  typedef enum
    {
    REALVALUE=0,
    HUMANREADABLE
    } TimeStampFormatType;

  itkSetMacro( TimeStampFormat, TimeStampFormatType );
  itkGetConstReferenceMacro( TimeStampFormat, TimeStampFormatType );

    itkSetStringMacro( HumanReadableFormat );
    itkGetStringMacro( HumanReadableFormat );

  virtual std::string BuildFormattedEntry(PriorityLevelType level,
                                          std::string const & content);

  virtual void SetPriorityLevel( PriorityLevelType level )
    {
    m_PriorityLevel = level;
    }

  virtual PriorityLevelType GetPriorityLevel() const
    {
    return m_PriorityLevel;
    }

  virtual void SetLevelForFlushing( PriorityLevelType level )
    {
    m_LevelForFlushing = level;
    }
  
  virtual PriorityLevelType GetLevelForFlushing() const
    {
    return m_LevelForFlushing;
    }
  
  virtual void AddLogOutput( OutputType* output );

  
  virtual void Write(PriorityLevelType level, std::string const & content);
  void Debug ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::DEBUG, message ); 
    }
  void Info ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::INFO, message ); 
    }
  void Warning ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::WARNING, message ); 
    }
  void Critical ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::CRITICAL, message ); 
    }
  void Error ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::CRITICAL, message ); 
    }
  void Fatal ( std::string const& message ) 
    { 
    this->Write ( LoggerBase::FATAL, message ); 
    }

  virtual void Flush();
  
protected:
  
  LoggerBase();

  virtual ~LoggerBase();

  virtual void PrintSelf(std::ostream &os, Indent indent) const;

protected:
  
  PriorityLevelType m_PriorityLevel;
  
  PriorityLevelType m_LevelForFlushing;
  
  MultipleLogOutput::Pointer  m_Output;
  
  RealTimeClock::Pointer  m_Clock;
  
  TimeStampFormatType     m_TimeStampFormat;

  std::string             m_HumanReadableFormat;

private:
  
  std::string m_Name;
  
};  // class LoggerBase

} // namespace itk

#endif  // __itkLoggerBase_h

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