LogFile.cpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2009
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 
00029 
00030 #include "LogFile.hpp"
00031 #include "Exception.hpp"
00032 
00033 #include <cmath>
00034 #include <sstream>
00035 
00036 LogFile* LogFile::mpInstance = NULL;
00037 
00038 LogFile::LogFile()
00039     : mFileSet(false),
00040       mInitTime(time(NULL)),
00041       mLevel(0),
00042       mPrecision(6)
00043 {
00044 }
00045 
00046 
00047 LogFile* LogFile::Instance()
00048 {
00049     if (mpInstance == NULL)
00050     {
00051         mpInstance = new LogFile; // default construtor which doesn't write
00052     }
00053     return mpInstance;
00054 }
00055 
00056 unsigned LogFile::Level()
00057 {
00058     if (mpInstance == NULL)
00059     {
00060         return 0;
00061     }
00062     else
00063     {
00064         return mpInstance->mLevel;
00065     }
00066 }
00067 
00068 
00069 void LogFile::Set(unsigned level, std::string directory, std::string fileName)
00070 {
00071     if (level > mMaxLoggingLevel)
00072     {
00073         std::stringstream string_stream;
00074         string_stream << "Requested level " << level
00075                       << " should have been less than or equal to " << mMaxLoggingLevel;
00076         EXCEPTION(string_stream.str());
00077     }
00078     mLevel = level;
00079 
00082 //    std::string file = "/home/chaste/Desktop/" + fileName;
00083 //    out_stream p_file(new std::ofstream(file.c_str()));
00084 //    mpOutStream = p_file;
00085 
00086     OutputFileHandler handler(directory, false);
00087     mpOutStream = handler.OpenOutputFile(fileName);
00088     mFileSet = true;
00089 
00090     // write header in the log file..?
00091 }
00092 
00093 unsigned LogFile::MaxLoggingLevel()
00094 {
00095     return mMaxLoggingLevel;
00096 }
00097 
00098 
00099 void LogFile::Close()
00100 {
00101     if (mpInstance)
00102     {
00103         mpInstance->mpOutStream->close();
00104         delete mpInstance;
00105         mpInstance = NULL;
00106     }
00107 }
00108 
00109 void LogFile::WriteHeader(std::string simulationType)
00110 {
00111     *this << "\nChaste: " << simulationType << " simulation, on " << ctime(&mInitTime) << "\n";
00112 }
00113 
00114 void LogFile::WriteElapsedTime(std::string pre)
00115 {
00116     double fsecs = difftime(time(NULL),mInitTime);
00117     long total_secs = static_cast<long>(floor(fsecs+0.5));
00118     int total_mins = total_secs/60;
00119 
00120     int secs = total_secs%60;
00121     int mins = total_mins%60;
00122     int hrs = total_mins/60;
00123 
00124     *this << pre << "Elapsed time is: " <<  hrs << "h " << mins << "m " << secs << "s\n";
00125 }
00126 
00127 bool LogFile::IsFileSet()
00128 {
00129     return mFileSet;
00130 }
00131 
00132 
00133 void LogFile::SetPrecision(unsigned precision)
00134 {
00135     assert(precision>0);
00136     mPrecision = precision;
00137 }

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