new trunk (base for 1.5)

windows build only

Foundation/src/RotateStrategy.cpp

@@ -0,0 +1,135 @@
+//
+// RotateStrategy.cpp
+//
+// $Id: //poco/1.4/Foundation/src/RotateStrategy.cpp#1 $
+//
+// Library: Foundation
+// Package: Logging
+// Module:  FileChannel
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#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