übernahme Code Shortcut
This commit is contained in:
georg0480
253
CuteLogger/src/RollingFileAppender.cpp
Normal file
253
CuteLogger/src/RollingFileAppender.cpp
Normal file
@@ -0,0 +1,253 @@
|
||||
#include <QDateTime>
|
||||
#include <QDir>
|
||||
#include <QFileInfo>
|
||||
|
||||
#include "RollingFileAppender.h"
|
||||
|
||||
|
||||
RollingFileAppender::RollingFileAppender(const QString& fileName)
|
||||
: FileAppender(fileName)
|
||||
, m_frequency(DailyRollover)
|
||||
, m_logFilesLimit(0)
|
||||
{}
|
||||
|
||||
|
||||
void RollingFileAppender::append(const QDateTime& timeStamp, Logger::LogLevel logLevel, const char* file, int line,
|
||||
const char* function, const QString& category, const QString& message)
|
||||
{
|
||||
if (!m_rollOverTime.isNull() && QDateTime::currentDateTime() > m_rollOverTime)
|
||||
rollOver();
|
||||
|
||||
FileAppender::append(timeStamp, logLevel, file, line, function, category, message);
|
||||
}
|
||||
|
||||
|
||||
RollingFileAppender::DatePattern RollingFileAppender::datePattern() const
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
return m_frequency;
|
||||
}
|
||||
|
||||
|
||||
QString RollingFileAppender::datePatternString() const
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
return m_datePatternString;
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::setDatePattern(DatePattern datePattern)
|
||||
{
|
||||
switch (datePattern)
|
||||
{
|
||||
case MinutelyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-MM-dd-hh-mm"));
|
||||
break;
|
||||
case HourlyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-MM-dd-hh"));
|
||||
break;
|
||||
case HalfDailyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-MM-dd-a"));
|
||||
break;
|
||||
case DailyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-MM-dd"));
|
||||
break;
|
||||
case WeeklyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-ww"));
|
||||
break;
|
||||
case MonthlyRollover:
|
||||
setDatePatternString(QLatin1String("'.'yyyy-MM"));
|
||||
break;
|
||||
default:
|
||||
Q_ASSERT_X(false, "DailyRollingFileAppender::setDatePattern()", "Invalid datePattern constant");
|
||||
setDatePattern(DailyRollover);
|
||||
};
|
||||
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
m_frequency = datePattern;
|
||||
|
||||
computeRollOverTime();
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::setDatePattern(const QString& datePattern)
|
||||
{
|
||||
setDatePatternString(datePattern);
|
||||
computeFrequency();
|
||||
|
||||
computeRollOverTime();
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::setDatePatternString(const QString& datePatternString)
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
m_datePatternString = datePatternString;
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::computeFrequency()
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
|
||||
const QDateTime startTime(QDate(1999, 1, 1), QTime(0, 0));
|
||||
const QString startString = startTime.toString(m_datePatternString);
|
||||
|
||||
if (startString != startTime.addSecs(60).toString(m_datePatternString))
|
||||
m_frequency = MinutelyRollover;
|
||||
else if (startString != startTime.addSecs(60 * 60).toString(m_datePatternString))
|
||||
m_frequency = HourlyRollover;
|
||||
else if (startString != startTime.addSecs(60 * 60 * 12).toString(m_datePatternString))
|
||||
m_frequency = HalfDailyRollover;
|
||||
else if (startString != startTime.addDays(1).toString(m_datePatternString))
|
||||
m_frequency = DailyRollover;
|
||||
else if (startString != startTime.addDays(7).toString(m_datePatternString))
|
||||
m_frequency = WeeklyRollover;
|
||||
else if (startString != startTime.addMonths(1).toString(m_datePatternString))
|
||||
m_frequency = MonthlyRollover;
|
||||
else
|
||||
{
|
||||
Q_ASSERT_X(false, "DailyRollingFileAppender::computeFrequency", "The pattern '%1' does not specify a frequency");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::removeOldFiles()
|
||||
{
|
||||
if (m_logFilesLimit <= 1)
|
||||
return;
|
||||
|
||||
QFileInfo fileInfo(fileName());
|
||||
QDir logDirectory(fileInfo.absoluteDir());
|
||||
logDirectory.setFilter(QDir::Files);
|
||||
logDirectory.setNameFilters(QStringList() << fileInfo.fileName() + "*");
|
||||
QFileInfoList logFiles = logDirectory.entryInfoList();
|
||||
|
||||
QMap<QDateTime, QString> fileDates;
|
||||
for (int i = 0; i < logFiles.length(); ++i)
|
||||
{
|
||||
QString name = logFiles[i].fileName();
|
||||
QString suffix = name.mid(name.indexOf(fileInfo.fileName()) + fileInfo.fileName().length());
|
||||
QDateTime fileDateTime = QDateTime::fromString(suffix, datePatternString());
|
||||
|
||||
if (fileDateTime.isValid())
|
||||
fileDates.insert(fileDateTime, logFiles[i].absoluteFilePath());
|
||||
}
|
||||
|
||||
QList<QString> fileDateNames = fileDates.values();
|
||||
for (int i = 0; i < fileDateNames.length() - m_logFilesLimit + 1; ++i)
|
||||
QFile::remove(fileDateNames[i]);
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::computeRollOverTime()
|
||||
{
|
||||
Q_ASSERT_X(!m_datePatternString.isEmpty(), "DailyRollingFileAppender::computeRollOverTime()", "No active date pattern");
|
||||
|
||||
QDateTime now = QDateTime::currentDateTime();
|
||||
QDate nowDate = now.date();
|
||||
QTime nowTime = now.time();
|
||||
QDateTime start;
|
||||
|
||||
switch (m_frequency)
|
||||
{
|
||||
case MinutelyRollover:
|
||||
{
|
||||
start = QDateTime(nowDate, QTime(nowTime.hour(), nowTime.minute(), 0, 0));
|
||||
m_rollOverTime = start.addSecs(60);
|
||||
}
|
||||
break;
|
||||
case HourlyRollover:
|
||||
{
|
||||
start = QDateTime(nowDate, QTime(nowTime.hour(), 0, 0, 0));
|
||||
m_rollOverTime = start.addSecs(60*60);
|
||||
}
|
||||
break;
|
||||
case HalfDailyRollover:
|
||||
{
|
||||
int hour = nowTime.hour();
|
||||
if (hour >= 12)
|
||||
hour = 12;
|
||||
else
|
||||
hour = 0;
|
||||
start = QDateTime(nowDate, QTime(hour, 0, 0, 0));
|
||||
m_rollOverTime = start.addSecs(60*60*12);
|
||||
}
|
||||
break;
|
||||
case DailyRollover:
|
||||
{
|
||||
start = QDateTime(nowDate, QTime(0, 0, 0, 0));
|
||||
m_rollOverTime = start.addDays(1);
|
||||
}
|
||||
break;
|
||||
case WeeklyRollover:
|
||||
{
|
||||
// Qt numbers the week days 1..7. The week starts on Monday.
|
||||
// Change it to being numbered 0..6, starting with Sunday.
|
||||
int day = nowDate.dayOfWeek();
|
||||
if (day == Qt::Sunday)
|
||||
day = 0;
|
||||
start = QDateTime(nowDate, QTime(0, 0, 0, 0)).addDays(-1 * day);
|
||||
m_rollOverTime = start.addDays(7);
|
||||
}
|
||||
break;
|
||||
case MonthlyRollover:
|
||||
{
|
||||
start = QDateTime(QDate(nowDate.year(), nowDate.month(), 1), QTime(0, 0, 0, 0));
|
||||
m_rollOverTime = start.addMonths(1);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
Q_ASSERT_X(false, "DailyRollingFileAppender::computeInterval()", "Invalid datePattern constant");
|
||||
#if QT_VERSION >= 0x050800
|
||||
m_rollOverTime = QDateTime::fromSecsSinceEpoch(0);
|
||||
#else
|
||||
m_rollOverTime = QDateTime::fromTime_t(0);
|
||||
#endif
|
||||
}
|
||||
|
||||
m_rollOverSuffix = start.toString(m_datePatternString);
|
||||
Q_ASSERT_X(now.toString(m_datePatternString) == m_rollOverSuffix,
|
||||
"DailyRollingFileAppender::computeRollOverTime()", "File name changes within interval");
|
||||
Q_ASSERT_X(m_rollOverSuffix != m_rollOverTime.toString(m_datePatternString),
|
||||
"DailyRollingFileAppender::computeRollOverTime()", "File name does not change with rollover");
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::rollOver()
|
||||
{
|
||||
Q_ASSERT_X(!m_datePatternString.isEmpty(), "DailyRollingFileAppender::rollOver()", "No active date pattern");
|
||||
|
||||
QString rollOverSuffix = m_rollOverSuffix;
|
||||
computeRollOverTime();
|
||||
if (rollOverSuffix == m_rollOverSuffix)
|
||||
return;
|
||||
|
||||
closeFile();
|
||||
|
||||
QString targetFileName = fileName() + rollOverSuffix;
|
||||
QFile f(targetFileName);
|
||||
if (f.exists() && !f.remove())
|
||||
return;
|
||||
f.setFileName(fileName());
|
||||
if (!f.rename(targetFileName))
|
||||
return;
|
||||
|
||||
openFile();
|
||||
removeOldFiles();
|
||||
}
|
||||
|
||||
|
||||
void RollingFileAppender::setLogFilesLimit(int limit)
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
m_logFilesLimit = limit;
|
||||
}
|
||||
|
||||
|
||||
int RollingFileAppender::logFilesLimit() const
|
||||
{
|
||||
QMutexLocker locker(&m_rollingMutex);
|
||||
return m_logFilesLimit;
|
||||
}
|
||||
Reference in New Issue
Block a user