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			128 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			128 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//
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// EventLogChannel.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/EventLogChannel.h#1 $
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//
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// Library: Foundation
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// Package: Logging
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// Module:  EventLogChannel
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//
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// Definition of the EventLogChannel class specific to WIN32.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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// 
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_EventLogChannel_INCLUDED
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#define Foundation_EventLogChannel_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Channel.h"
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#include "Poco/UnWindows.h"
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namespace Poco {
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class Foundation_API EventLogChannel: public Channel
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	/// This Windows-only channel works with the Windows NT Event Log
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	/// service.
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	///
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	/// To work properly, the EventLogChannel class requires that either
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	/// the PocoFoundation.dll or the PocoMsg.dll Dynamic Link Library
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	/// containing the message definition resources can be found in $PATH.
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{
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public:
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	EventLogChannel();
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		/// Creates the EventLogChannel.
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		/// The name of the current application (or more correctly,
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		/// the name of its executable) is taken as event source name.
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	EventLogChannel(const std::string& name);
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		/// Creates the EventLogChannel with the given event source name.
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	EventLogChannel(const std::string& name, const std::string& host);
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		/// Creates an EventLogChannel with the given event source
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		/// name that routes messages to the given host.
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	void open();
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		/// Opens the EventLogChannel. If necessary, the
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		/// required registry entries to register a
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		/// message resource DLL are made.
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	void close();
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		/// Closes the EventLogChannel.
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	void log(const Message& msg);
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		/// Logs the given message to the Windows Event Log.
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		///
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		/// The message type and priority are mapped to
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		/// appropriate values for Event Log type and category.
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	void setProperty(const std::string& name, const std::string& value);
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		/// Sets or changes a configuration property. 
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		///
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		/// The following properties are supported:
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		///
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		///   * name:    The name of the event source.
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		///   * loghost: The name of the host where the Event Log service is running.
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		///              The default is "localhost".
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		///   * host:    same as host.
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		///   * logfile: The name of the log file. The default is "Application".
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	std::string getProperty(const std::string& name) const;
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		/// Returns the value of the given property.
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	static const std::string PROP_NAME;
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	static const std::string PROP_HOST;
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	static const std::string PROP_LOGHOST;
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	static const std::string PROP_LOGFILE;
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protected:
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	~EventLogChannel();
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	static int getType(const Message& msg);
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	static int getCategory(const Message& msg);
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	void setUpRegistry() const;
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#if defined(POCO_WIN32_UTF8)
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	static std::wstring findLibrary(const wchar_t* name);
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#else
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	static std::string findLibrary(const char* name);
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#endif
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private:
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	std::string _name;
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	std::string _host;
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	std::string _logFile;
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	HANDLE      _h;
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};
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} // namespace Poco
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#endif // Foundation_EventLogChannel_INCLUDED
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