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// Copyright (c) 2010, Razvan Petru
// All rights reserved.
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice, this
// list of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
// * The name of the contributors may not be used to endorse or promote products
// derived from this software without specific prior written permission.
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
#include "logger/qslog.h"
#include "logger/qslogdest.h"
#include <QMutex>
#include <QList>
#include <QDateTime>
#include <QtGlobal>
#include <cassert>
#include <cstdlib>
#include <stdexcept>
namespace QsLogging
{
typedef QList<Destination*> DestinationList;
static const char TraceString[] = "TRACE";
static const char DebugString[] = "DEBUG";
static const char InfoString[] = "INFO";
static const char WarnString[] = "WARN";
static const char ErrorString[] = "ERROR";
static const char FatalString[] = "FATAL";
// not using Qt::ISODate because we need the milliseconds too
static const QString fmtDateTime("yyyy-MM-dd hh:mm:ss.zzz");
static const char* LevelToText(Level theLevel)
{
switch( theLevel )
{
case TraceLevel:
return TraceString;
case DebugLevel:
return DebugString;
case InfoLevel:
return InfoString;
case WarnLevel:
return WarnString;
case ErrorLevel:
return ErrorString;
case FatalLevel:
return FatalString;
default:
{
assert(!"bad log level");
return InfoString;
}
}
}
class LoggerImpl
{
public:
LoggerImpl() :
level(InfoLevel)
{
}
QMutex logMutex;
Level level;
DestinationList destList;
};
Logger::Logger() :
d(new LoggerImpl)
{
}
Logger::~Logger()
{
delete d;
}
void Logger::addDestination(Destination* destination)
{
assert(destination);
d->destList.push_back(destination);
}
void Logger::setLoggingLevel(Level newLevel)
{
d->level = newLevel;
}
Level Logger::loggingLevel() const
{
return d->level;
}
//! creates the complete log message and passes it to the logger
void Logger::Helper::writeToLog()
{
const char* const levelName = LevelToText(level);
const QString completeMessage(QString("%1 %2 %3")
.arg(levelName, 5)
.arg(QDateTime::currentDateTime().toString(fmtDateTime))
.arg(buffer)
);
Logger& logger = Logger::instance();
QMutexLocker lock(&logger.d->logMutex);
logger.write(completeMessage);
}
Logger::Helper::~Helper()
{
try
{
writeToLog();
}
catch(std::exception& e)
{
// you shouldn't throw exceptions from a sink
Q_UNUSED(e);
assert(!"exception in logger helper destructor");
throw;
}
}
//! sends the message to all the destinations
void Logger::write(const QString& message)
{
for(DestinationList::iterator it = d->destList.begin(),
endIt = d->destList.end();it != endIt;++it)
{
if( !(*it) )
{
assert(!"null log destination");
continue;
}
(*it)->write(message);
}
}
} // end namespace
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