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//
// RotateStrategy.cpp
//
// Library: Foundation
// Package: Logging
// Module: FileChannel
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/RotateStrategy.h"
#include "Poco/FileStream.h"
#include "Poco/DateTimeParser.h"
#include "Poco/DateTimeFormatter.h"
#include "Poco/DateTimeFormat.h"
namespace Poco {
//
// RotateStrategy
//
RotateStrategy::RotateStrategy()
{
}
RotateStrategy::~RotateStrategy()
{
}
//
// RotateByIntervalStrategy
//
const std::string RotateByIntervalStrategy::ROTATE_TEXT("# Log file created/rotated ");
RotateByIntervalStrategy::RotateByIntervalStrategy(const Timespan& span):
_span(span),
_lastRotate(0)
{
if (span.totalMicroseconds() <= 0) throw InvalidArgumentException("time span must be greater than zero");
}
RotateByIntervalStrategy::~RotateByIntervalStrategy()
{
}
bool RotateByIntervalStrategy::mustRotate(LogFile* pFile)
{
if (_lastRotate == 0 || pFile->size() == 0)
{
if (pFile->size() != 0)
{
Poco::FileInputStream istr(pFile->path());
std::string tag;
std::getline(istr, tag);
if (tag.compare(0, ROTATE_TEXT.size(), ROTATE_TEXT) == 0)
{
std::string timestamp(tag, ROTATE_TEXT.size());
int tzd;
_lastRotate = DateTimeParser::parse(DateTimeFormat::RFC1036_FORMAT, timestamp, tzd).timestamp();
}
else _lastRotate = pFile->creationDate();
}
else
{
_lastRotate.update();
std::string tag(ROTATE_TEXT);
DateTimeFormatter::append(tag, _lastRotate, DateTimeFormat::RFC1036_FORMAT);
pFile->write(tag);
}
}
Timestamp now;
return _span <= now - _lastRotate;
}
//
// RotateBySizeStrategy
//
RotateBySizeStrategy::RotateBySizeStrategy(UInt64 size): _size(size)
{
if (size == 0) throw InvalidArgumentException("size must be greater than zero");
}
RotateBySizeStrategy::~RotateBySizeStrategy()
{
}
bool RotateBySizeStrategy::mustRotate(LogFile* pFile)
{
return pFile->size() >= _size;
}
} // namespace Poco
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