added Poco::EventChannel class

Foundation/Makefile

@@ -13,7 +13,7 @@ objects = ArchiveStrategy Ascii ASCIIEncoding AsyncChannel \
 	BinaryReader BinaryWriter Bugcheck ByteOrder Channel Checksum Clock Configurable ConsoleChannel \
 	Condition CountingStream DateTime LocalDateTime DateTimeFormat DateTimeFormatter DateTimeParser \
 	Debugger DeflatingStream DigestEngine DigestStream DirectoryIterator DirectoryWatcher \
-	Environment Event Error EventArgs ErrorHandler Exception FIFOBufferStream FPEnvironment File \
+	Environment Event EventChannel Error EventArgs ErrorHandler Exception FIFOBufferStream FPEnvironment File \
 	FileChannel Formatter FormattingChannel Glob HexBinaryDecoder LineEndingConverter \
 	HexBinaryEncoder InflatingStream Latin1Encoding Latin2Encoding Latin9Encoding LogFile \
 	Logger LoggingFactory LoggingRegistry LogStream NamedEvent NamedMutex NullChannel \

Foundation/include/Poco/EventChannel.h

@@ -0,0 +1,56 @@
+//
+// EventChannel.h
+//
+// $Id$
+//
+// Library: Foundation
+// Package: Logging
+// Module:  EventChannel
+//
+// Definition of the EventChannel class.
+//
+// Copyright (c) 2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_EventChannel_INCLUDED
+#define Foundation_EventChannel_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/Channel.h"
+#include "Poco/Message.h"
+#include "Poco/BasicEvent.h"
+
+
+namespace Poco {
+
+
+class Foundation_API EventChannel: public Channel
+	/// The EventChannel fires the messageLogged event for every log message
+	/// received. This can be used to hook custom log message processing into
+	/// the logging framework. 
+{
+public:
+	Poco::BasicEvent<const Message> messageLogged;
+		/// Fired when a message is logged by calling the log() method.
+
+	EventChannel();
+		/// Creates the EventChannel.
+
+	void log(const Message& msg);
+		/// Fires the messageLogged event.
+
+protected:
+	~EventChannel();
+		/// Destroys the EventChannel.
+};
+
+
+} // namespace Poco
+
+
+#endif // Foundation_EventChannel_INCLUDED

Foundation/src/EventChannel.cpp

@@ -0,0 +1,39 @@
+//
+// EventChannel.cpp
+//
+// $Id$
+//
+// Library: Foundation
+// Package: Logging
+// Module:  EventChannel
+//
+// Copyright (c) 2015, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/EventChannel.h"
+
+
+namespace Poco {
+
+
+EventChannel::EventChannel()
+{
+}
+
+
+EventChannel::~EventChannel()
+{
+}
+
+
+void EventChannel::log(const Message& msg)
+{
+	messageLogged(this, msg);
+}
+
+
+} // namespace Poco

Foundation/src/LoggingFactory.cpp

@@ -22,6 +22,7 @@
 #include "Poco/FormattingChannel.h"
 #include "Poco/SplitterChannel.h"
 #include "Poco/NullChannel.h"
+#include "Poco/EventChannel.h"
 #if defined(POCO_OS_FAMILY_UNIX) && !defined(POCO_NO_SYSLOGCHANNEL)
 #include "Poco/SyslogChannel.h"
 #endif
@@ -103,6 +104,7 @@ void LoggingFactory::registerBuiltins()
 	_channelFactory.registerClass("SplitterChannel", new Instantiator<SplitterChannel, Channel>);
 #endif
 	_channelFactory.registerClass("NullChannel", new Instantiator<NullChannel, Channel>);
+	_channelFactory.registerClass("EventChannel", new Instantiator<EventChannel, Channel>);
 
 #if defined(POCO_OS_FAMILY_UNIX)
 #ifndef POCO_NO_SYSLOGCHANNEL