File indexing completed on 2024-05-12 05:09:25

 /***************************************************************************
     Copyright (C) 2023 Robby Stephenson <robby@periapsis.org>
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   This program 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 2 of        *
  *   the License or (at your option) version 3 or any later version        *
  *   accepted by the membership of KDE e.V. (or its successor approved     *
  *   by the membership of KDE e.V.), which shall act as a proxy            *
  *   defined in Section 14 of version 3 of the license.                    *
  *                                                                         *
  *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>. *
  *                                                                         *
  ***************************************************************************/
 
 #include "logger.h"
 
 #include <QTextCodec>
 
 namespace {
   const int MAX_LINES_BEFORE_FLUSH = 1000;
 }
 using Tellico::Logger;
 
 Logger* Logger::self() {
   static Logger logger;
   return &logger;
 }
 
 Logger::Logger(QObject* parent_) : QObject(parent_) {
   m_oldHandler = qInstallMessageHandler([](QtMsgType type, const QMessageLogContext& ctx, const QString& msg) {
                                           Logger::self()->log(type, ctx, msg);
                                         });
   qSetMessagePattern(QStringLiteral("[%{time hh:mm:ss}] %{if-debug}[ %{file}:%{line} "
                                     " %{function} ] %{endif}%{if-warning}WARNING %{endif}%{message}"));
 }
 
 Logger::~Logger() {
   if(m_logStream) {
     m_logStream->flush();
   }
   qInstallMessageHandler(m_oldHandler);
 }
 
 void Logger::log(const QString& msg_) {
   static int lineCounter = 0;
   if(!m_logStream) return;
 
   QMutexLocker lock(&m_mutex);
   ++lineCounter;
   if(lineCounter > MAX_LINES_BEFORE_FLUSH) {
     lineCounter = 1;
     m_logStream->flush();
   }
 
   (*m_logStream) << msg_ << "\n";
 }
 
 void Logger::log(QtMsgType type_, const QMessageLogContext& ctx_, const QString& msg_) {
   if(!m_logStream) {
     // if there's no logging output defined, revert to previous behavior
     // but swallow info messages if they're in Tellico's category
     if(type_ != QtInfoMsg || strcmp(ctx_.category, "tellico") != 0) {
       m_oldHandler(type_, ctx_, msg_);
      }
     return;
   }
 
   const auto& logMsg = qFormatLogMessage(type_, ctx_, msg_);
   log(logMsg);
   // also include default handling of warning and critical messages
   if(type_ != QtInfoMsg && type_ != QtDebugMsg) {
     m_oldHandler(type_, ctx_, msg_);
   }
 }
 
 void Logger::setLogFile(const QString& logFile_) {
   QMutexLocker lock(&m_mutex);
   if(m_logStream) {
     m_logStream.reset(nullptr);
     m_logFile.close();
   }
 
   if(logFile_.isEmpty()) {
     return;
   }
 
   if(logFile_ == QLatin1String("-")) {
     m_logFile.open(stdout, QIODevice::WriteOnly);
   } else {
     m_logFile.setFileName(logFile_);
     m_logFile.open(QIODevice::WriteOnly);
   }
 
   m_logStream.reset(new QTextStream(&m_logFile));
   m_logStream->setCodec(QTextCodec::codecForName("UTF-8"));
 }
 
 QString Logger::logFile() const {
   return m_logFile.fileName();
 }
 
 void Logger::flush() {
   if(m_logStream) m_logStream->flush();
 }