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//
// Channel.h
//
// Library: Foundation
// Package: Logging
// Module: Channel
//
// Definition of the Channel class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Channel_INCLUDED
#define Foundation_Channel_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Configurable.h"
#include "Poco/Mutex.h"
#include "Poco/RefCountedObject.h"
namespace Poco {
class Message;
class Foundation_API Channel: public Configurable, public RefCountedObject
/// The base class for all Channel classes.
///
/// Supports reference counting based garbage
/// collection and provides trivial implementations
/// of getProperty() and setProperty().
{
public:
Channel();
/// Creates the channel and initializes
/// the reference count to one.
virtual void open();
/// Does whatever is necessary to open the channel.
/// The default implementation does nothing.
virtual void close();
/// Does whatever is necessary to close the channel.
/// The default implementation does nothing.
virtual void log(const Message& msg) = 0;
/// Logs the given message to the channel. Must be
/// overridden by subclasses.
///
/// If the channel has not been opened yet, the log()
/// method will open it.
void setProperty(const std::string& name, const std::string& value);
/// Throws a PropertyNotSupportedException.
std::string getProperty(const std::string& name) const;
/// Throws a PropertyNotSupportedException.
protected:
virtual ~Channel();
private:
Channel(const Channel&);
Channel& operator = (const Channel&);
};
} // namespace Poco
#endif // Foundation_Channel_INCLUDED
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