ENH: Classes for supporting Logging. These classes will facilitate de…

…bugging

     during development and will provide services for run-time tracing of
     program activities.

Code/Common/CMakeLists.txt

@@ -5,6 +5,7 @@ SET(ITKCommon_SRCS
   itkChainCodePath2D.cxx
   itkCommand.h itkCommand.cxx
   itkConditionVariable.cxx
+  itkConsoleLogOutput.cxx
   itkDataObject.cxx
   itkDecisionRuleBase.cxx
   itkDirectory.cxx
@@ -14,6 +15,7 @@ SET(ITKCommon_SRCS
   itkExceptionObject.cxx
   itkFastMutexLock.cxx
   itkFileOutputWindow.cxx
+  itkFileLogOutput.cxx
   itkGaussianKernelFunction.cxx
   itkHexahedronCellTopology.cxx
   itkIndent.cxx
@@ -23,12 +25,16 @@ SET(ITKCommon_SRCS
   itkKernelFunction.cxx
   itkLightObject.cxx
   itkLightProcessObject.cxx
+  itkLogger.cxx
+  itkLoggerManager.cxx
+  itkLoggerOutput.cxx
   itkMaximumDecisionRule.cxx
   itkMaximumRatioDecisionRule.cxx
   itkMeshRegion.cxx
   itkMinimumDecisionRule.cxx
   itkMultiThreader.cxx
   itkMutexLock.cxx
+  itkMultipleLogOutput.cxx
   itkNumericTraits.cxx
   itkNumericTraitsRGBPixel.cxx
   itkNumericTraitsVectorPixel.cxx
@@ -51,8 +57,10 @@ SET(ITKCommon_SRCS
   itkSimpleFastMutexLock.cxx
   itkSimpleFilterWatcher.cxx
   itkSimplexMeshGeometry.cxx
+  itkStdStreamLogOutput.cxx
   itkTextOutput.cxx
   itkTetrahedronCellTopology.cxx
+  itkThreadLogger.cxx
   itkTimeProbe.cxx
   itkTimeProbesCollectorBase.cxx
   itkTimeStamp.cxx

Code/Common/itkConsoleLogOutput.cxx

@@ -0,0 +1,81 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    itkConsoleLogOutput.cxx
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  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.
+
+=========================================================================*/
+
+#include<iostream>
+#include"itkConsoleLogOutput.h"
+
+
+namespace itk
+{
+
+SimpleFastMutexLock ConsoleLogOutput::m_Mutex;
+
+
+ConsoleLogOutput::ConsoleLogOutput()
+{
+  m_Mutex.Lock();
+  std::cout.precision(15);
+  m_Mutex.Unlock();
+}
+
+
+ConsoleLogOutput::~ConsoleLogOutput()
+{
+  m_Mutex.Lock();
+  std::cout.flush();
+  m_Mutex.Unlock();
+}
+
+
+/** flush a buffer */
+void ConsoleLogOutput::Flush()
+{
+  ConsoleLogOutput::m_Mutex.Lock();
+  std::cout.flush();
+  ConsoleLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to a buffer */
+void ConsoleLogOutput::Write(double timestamp)
+{
+  ConsoleLogOutput::m_Mutex.Lock();
+  std::cout << timestamp;
+  ConsoleLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to a buffer */
+void ConsoleLogOutput::Write(std::string const &content)
+{
+  ConsoleLogOutput::m_Mutex.Lock();
+  std::cout << content;
+  ConsoleLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to a buffer */
+void ConsoleLogOutput::Write(std::string const &content, double timestamp)
+{
+  ConsoleLogOutput::m_Mutex.Lock();
+  std::cout << timestamp << "  :  " << content;
+  ConsoleLogOutput::m_Mutex.Unlock();
+}
+
+
+}
+

Code/Common/itkConsoleLogOutput.h

@@ -0,0 +1,84 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    itkConsoleLogOutput.h
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  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 __itk_ConsoleLogOutput_h_
+#define __itk_ConsoleLogOutput_h_
+
+#include <string>
+
+#include "itkMacro.h"
+#include "itkObject.h"
+#include "itkObjectFactory.h"
+#include "itkSimpleFastMutexLock.h"
+#include "itkLogOutput.h"
+
+
+namespace itk
+{
+
+/** \class ConsoleLogOutput
+ *  \brief Class ConsoleLogOutput represents a standard output stream.
+ *  This class provides thread safety for the standard output stream.
+ *
+ * \author Hee-Su Kim, Compute Science Dept. Kyungpook National University,
+ *                     ISIS Center, Georgetown University.
+ *
+ *
+ *  \ingroup OSSystemObjects LoggingObjects                    
+ */
+
+class ConsoleLogOutput : public LogOutput
+{
+
+public:
+
+  typedef ConsoleLogOutput Self;
+  typedef LogOutput  Superclass;
+  typedef SmartPointer<Self>  Pointer;
+  typedef SmartPointer<const Self>  ConstPointer;
+
+  itkTypeMacro(ConsoleLogOutput, LogOutput);
+
+  itkNewMacro(ConsoleLogOutput);
+
+  /** flush a buffer */
+  virtual void Flush();
+
+  /** Write to a buffer */
+  virtual void Write(double timestamp);
+
+  /** Write to a buffer */
+  virtual void Write(std::string const &content);
+
+  /** Write to a buffer */
+  virtual void Write(std::string const &content, double timestamp);
+
+protected:
+  /** Constructor */
+  ConsoleLogOutput();
+
+  /** Destructor */
+  virtual ~ConsoleLogOutput();
+
+private:
+
+  static SimpleFastMutexLock m_Mutex;
+};
+
+}
+
+#endif //__itk_ConsoleLogOutput_h_

Code/Common/itkFileLogOutput.cxx

@@ -0,0 +1,98 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    itkFileLogOutput.cxx
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  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.
+
+=========================================================================*/
+
+#include<iostream>
+#include"itkFileLogOutput.h"
+
+
+namespace itk
+{
+
+/** Constructor */
+FileLogOutput::FileLogOutput()
+{
+  this->m_File = 0;
+}
+
+/** Destructor */
+FileLogOutput::~FileLogOutput()
+{
+  if( this->m_File )
+    {
+    this->m_File->close();
+    }
+}
+
+
+/** Set file stream */
+void FileLogOutput::SetFile( FileType & FileStream )
+{
+  this->m_File = &FileStream;
+  this->m_File->precision(15);
+}
+
+
+/** flush a buffer */
+void FileLogOutput::Flush()
+{
+  FileLogOutput::m_Mutex.Lock();
+  if( this->m_File )
+    {
+    this->m_File->flush();
+    }
+  FileLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to multiple outputs */
+void FileLogOutput::Write(double timestamp)
+{
+  FileLogOutput::m_Mutex.Lock();
+  if( this->m_File )
+    {
+    (*this->m_File) << timestamp;
+    }
+  FileLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to a buffer */
+void FileLogOutput::Write( const std::string & content )
+{
+  FileLogOutput::m_Mutex.Lock();
+  if( this->m_File )
+    {
+    (*this->m_File) << content;
+    }
+  FileLogOutput::m_Mutex.Unlock();
+}
+
+
+/** Write to a buffer */
+void FileLogOutput::Write( const std::string & content, double timestamp )
+{
+  FileLogOutput::m_Mutex.Lock();
+  if( this->m_File )
+    {
+    (*this->m_File) << timestamp << "  :  " << content;
+    }
+  FileLogOutput::m_Mutex.Unlock();
+}
+
+
+}
+