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Diffstat (limited to 'ext/Log4Qt/src/dailyrollingfileappender.cpp')
| -rwxr-xr-x | ext/Log4Qt/src/dailyrollingfileappender.cpp | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/ext/Log4Qt/src/dailyrollingfileappender.cpp b/ext/Log4Qt/src/dailyrollingfileappender.cpp new file mode 100755 index 0000000..a385d10 --- /dev/null +++ b/ext/Log4Qt/src/dailyrollingfileappender.cpp @@ -0,0 +1,352 @@ +/****************************************************************************** + * + * package: + * file: dailyrollingfileappender.cpp + * created: September 2007 + * author: Martin Heinrich + * + * + * Copyright 2007 Martin Heinrich + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ******************************************************************************/ + + + +/****************************************************************************** + * Dependencies + ******************************************************************************/ + + +#include "dailyrollingfileappender.h" + +#include <QtCore/QDebug> +#include <QtCore/QFile> +#include <QtCore/QMetaEnum> +#include <QtCore/QTextCodec> +#include "helpers/datetime.h" +#include "layout.h" +#include "loggingevent.h" + + + +namespace Log4Qt +{ + + + /************************************************************************** + * Declarations + **************************************************************************/ + + + + /************************************************************************** + * C helper functions + **************************************************************************/ + + + + /************************************************************************** + * Class implementation: DailyRollingFileAppender + **************************************************************************/ + + + DailyRollingFileAppender::DailyRollingFileAppender(QObject *pParent) : + FileAppender(pParent), + mDatePattern() + { + setDatePattern(DAILY_ROLLOVER); + } + + + DailyRollingFileAppender::DailyRollingFileAppender(Layout *pLayout, + const QString &rFileName, + const QString &rDatePattern, + QObject *pParent) : + FileAppender(pLayout, rFileName, pParent), + mDatePattern() + { + setDatePattern(rDatePattern); + } + + + DailyRollingFileAppender::~DailyRollingFileAppender() + { + close(); + } + + + void DailyRollingFileAppender::setDatePattern(DatePattern datePattern) + { + switch (datePattern) + { + case MINUTELY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-MM-dd-hh-mm")); + break; + case HOURLY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-MM-dd-hh")); + break; + case HALFDAILY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-MM-dd-a")); + break; + case DAILY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-MM-dd")); + break; + case WEEKLY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-ww")); + break; + case MONTHLY_ROLLOVER: + setDatePattern(QLatin1String("'.'yyyy-MM")); + break; + default: + Q_ASSERT_X(false, "DailyRollingFileAppender::setDatePattern()", "Invalid datePattern constant"); + setDatePattern(DAILY_ROLLOVER); + }; + } + + + void DailyRollingFileAppender::activateOptions() + { + QMutexLocker locker(&mObjectGuard); + + computeFrequency(); + if (!mActiveDatePattern.isEmpty()) + { + computeRollOverTime(); + FileAppender::activateOptions(); + } + } + + + void DailyRollingFileAppender::append(const LoggingEvent &rEvent) + { + // Q_ASSERT_X(, "DailyRollingFileAppender::append()", "Lock must be held by caller") + + if (QDateTime::currentDateTime() > mRollOverTime) + rollOver(); + FileAppender::append(rEvent); + } + + + bool DailyRollingFileAppender::checkEntryConditions() const + { + // Q_ASSERT_X(, "DailyRollingFileAppender::checkEntryConditions()", "Lock must be held by caller") + + if (mActiveDatePattern.isEmpty()) + { + LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Use of appender '%1' without having a valid date pattern set"), + APPENDER_USE_INVALID_PATTERN_ERROR); + e << name(); + logger()->error(e); + return false; + } + + return FileAppender::checkEntryConditions(); + } + + +#ifndef QT_NO_DEBUG_STREAM + QDebug DailyRollingFileAppender::debug(QDebug &rDebug) const + { + QString layout_name; + if (layout()) + layout_name = layout()->name(); + QString codec_name; + if (encoding()) + codec_name = QLatin1String(encoding()->name()); + + rDebug.nospace() << "DailyRollingFileAppender(" + << "name:" << name() << " " + << "activedatepattern:" << mActiveDatePattern << " " + << "appendfile:" << appendFile() << " " + << "bufferedio:" << bufferedIo() << " " + << "datepattern:" << datePattern() << " " + << "encoding:" << codec_name << " " + << "frequency:" << frequencyToString() << " " + << "file:" << file() << " " + << "filter:" << firstFilter() << " " + << "immediateflush:" << immediateFlush() << " " + << "isactive:" << isActive() << " " + << "isclosed:" << isClosed() << " " + << "layout:" << layout_name << " " + << "referencecount:" << referenceCount() << " " + << "rollovertime:" << mRollOverTime + << "threshold:" << threshold().toString() + << "writer:" << writer() + << ")"; + return rDebug.space(); + } +#endif // QT_NO_DEBUG_STREAM + + + void DailyRollingFileAppender::computeFrequency() + { + // Q_ASSERT_X(, "DailyRollingFileAppender::computeFrequency()", "Lock must be held by caller") + + const DateTime start_time(QDate(1999, 1, 1), QTime(0, 0)); + const QString start_string = start_time.toString(mDatePattern); + mActiveDatePattern.clear(); + + if (start_string != static_cast<DateTime>(start_time.addSecs(60)).toString(mDatePattern)) + mFrequency = MINUTELY_ROLLOVER; + else if (start_string != static_cast<DateTime>(start_time.addSecs(60 * 60)).toString(mDatePattern)) + mFrequency = HOURLY_ROLLOVER; + else if (start_string != static_cast<DateTime>(start_time.addSecs(60 * 60 * 12)).toString(mDatePattern)) + mFrequency = HALFDAILY_ROLLOVER; + else if (start_string != static_cast<DateTime>(start_time.addDays(1)).toString(mDatePattern)) + mFrequency = DAILY_ROLLOVER; + else if (start_string != static_cast<DateTime>(start_time.addDays(7)).toString(mDatePattern)) + mFrequency = WEEKLY_ROLLOVER; + else if (start_string != static_cast<DateTime>(start_time.addMonths(1)).toString(mDatePattern)) + mFrequency = MONTHLY_ROLLOVER; + else + { + LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("The pattern '%1' does not specify a frequency for appender '%2'"), + APPENDER_INVALID_PATTERN_ERROR); + e << mDatePattern << name(); + logger()->error(e); + return; + } + + mActiveDatePattern = mDatePattern; + logger()->trace("Frequency set to %2 using date pattern %1", + mActiveDatePattern, + frequencyToString()); + } + + + void DailyRollingFileAppender::computeRollOverTime() + { + // Q_ASSERT_X(, "DailyRollingFileAppender::computeRollOverTime()", "Lock must be held by caller") + Q_ASSERT_X(!mActiveDatePattern.isEmpty(), "DailyRollingFileAppender::computeRollOverTime()", "No active date pattern"); + + QDateTime now = QDateTime::currentDateTime(); + QDate now_date = now.date(); + QTime now_time = now.time(); + QDateTime start; + + switch (mFrequency) + { + case MINUTELY_ROLLOVER: + { + start = QDateTime(now_date, + QTime(now_time.hour(), + now_time.minute(), + 0, 0)); + mRollOverTime = start.addSecs(60); + } + break; + case HOURLY_ROLLOVER: + { + start = QDateTime(now_date, + QTime(now_time.hour(), + 0, 0, 0)); + mRollOverTime = start.addSecs(60*60); + } + break; + case HALFDAILY_ROLLOVER: + { + int hour = now_time.hour(); + if (hour >= 12) + hour = 12; + else + hour = 0; + start = QDateTime(now_date, + QTime(hour, 0, 0, 0)); + mRollOverTime = start.addSecs(60*60*12); + } + break; + case DAILY_ROLLOVER: + { + start = QDateTime(now_date, + QTime(0, 0, 0, 0)); + mRollOverTime = start.addDays(1); + } + break; + case WEEKLY_ROLLOVER: + { + // QT numbers the week days 1..7. The week starts on Monday. + // Change it to being numbered 0..6, starting with Sunday. + int day = now_date.dayOfWeek(); + if (day == Qt::Sunday) + day = 0; + start = QDateTime(now_date, + QTime(0, 0, 0, 0)).addDays(-1 * day); + mRollOverTime = start.addDays(7); + } + break; + case MONTHLY_ROLLOVER: + { + start = QDateTime(QDate(now_date.year(), + now_date.month(), + 1), + QTime(0, 0, 0, 0)); + mRollOverTime = start.addMonths(1); + } + break; + default: + Q_ASSERT_X(false, "DailyRollingFileAppender::computeInterval()", "Invalid datePattern constant"); + mRollOverTime = QDateTime::fromTime_t(0); + } + + mRollOverSuffix = static_cast<DateTime>(start).toString(mActiveDatePattern); + Q_ASSERT_X(static_cast<DateTime>(now).toString(mActiveDatePattern) == mRollOverSuffix, + "DailyRollingFileAppender::computeRollOverTime()", "File name changes within interval"); + Q_ASSERT_X(mRollOverSuffix != static_cast<DateTime>(mRollOverTime).toString(mActiveDatePattern), + "DailyRollingFileAppender::computeRollOverTime()", "File name does not change with rollover"); + + logger()->trace("Computing roll over time from %1: The interval start time is %2. The roll over time is %3", + now, + start, + mRollOverTime); + } + + + QString DailyRollingFileAppender::frequencyToString() const + { + QMetaEnum meta_enum = metaObject()->enumerator(metaObject()->indexOfEnumerator("DatePattern")); + return QLatin1String(meta_enum.valueToKey(mFrequency)); + } + + + void DailyRollingFileAppender::rollOver() + { + // Q_ASSERT_X(, "DailyRollingFileAppender::rollOver()", "Lock must be held by caller") + Q_ASSERT_X(!mActiveDatePattern.isEmpty(), "DailyRollingFileAppender::rollOver()", "No active date pattern"); + + QString roll_over_suffix = mRollOverSuffix; + computeRollOverTime(); + if (roll_over_suffix == mRollOverSuffix) + return; + + closeFile(); + + QString target_file_name = file() + roll_over_suffix; + QFile f(target_file_name); + if (f.exists() && !removeFile(f)) + return; + f.setFileName(file()); + if (!renameFile(f, target_file_name)) + return; + openFile(); + } + + + + /************************************************************************** + * Implementation: Operators, Helper + **************************************************************************/ + + +} // namespace Log4Qt |