LogRecord.h

/*
 * Copyright (C) 2005-2012 by Dr. Marc Boris Duerner
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * As a special exception, you may use this file as part of a free
 * software library without restriction. Specifically, if other files
 * instantiate templates or use macros or inline functions from this
 * file, or you compile this file and link it with other files to
 * produce an executable, this file does not by itself cause the
 * resulting executable to be covered by the GNU General Public
 * License. This exception does not however invalidate any other
 * reasons why the executable file might be covered by the GNU Library
 * General Public License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef Pt_System_LogRecord_h
#define Pt_System_LogRecord_h

#include <Pt/System/Api.h>
#include <Pt/System/LogLevel.h>
#include <Pt/SourceInfo.h>
#include <Pt/NonCopyable.h>
#include <string>
#include <iostream>
#include <sstream>

namespace Pt {

namespace System {

class LogRecord : protected Pt::NonCopyable
{
    public:
        explicit LogRecord(const LogLevel& level)
        : _level(level)
        , _source("unknown", "unknown", "unknown")
        { }

        ~LogRecord()
        {}

        void clear()
        {
            _text.str( std::string() );
            _text.clear();
        }

        std::string text() const
        { return _text.str(); }

        LogLevel logLevel() const
        { return _level; }

        const Pt::SourceInfo& sourceInfo() const
        { return _source; }

        template <typename T>
        LogRecord& operator<<(const T& value)
        {
            _text << value;
            return *this;
        }

        LogRecord& operator<<( std::ostream& (*op)(std::ostream&) )
        {
            _text << op;
            return *this;
        }

        LogRecord& operator<<( std::ios& (*op)(std::ios&) )
        {
            _text << op;
            return *this;
        }

        LogRecord& operator<<( std::ios_base& (*op)(std::ios_base&) )
        {
            _text << op;
            return *this;
        }

        LogRecord& operator<<( const Pt::SourceInfo& si )
        {
            _source = si;
            return *this;
        }

    private:
        std::ostringstream _text;
        LogLevel           _level;
        Pt::SourceInfo     _source;
};

} // namespace System

} // namespace Pt

#endif // Pt_System_LogRecord_h