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// -*- C++ -*-
// Module: Log4CPLUS
// File: rootlogger.h
// Created: 6/2001
// Author: Tad E. Smith
//
//
// Copyright 2001-2010 Tad E. Smith
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/** @file */
#ifndef LOG4CPLUS_SPI_ROOT_LOGGER_HEADER_
#define LOG4CPLUS_SPI_ROOT_LOGGER_HEADER_
#include <log4cplus/config.hxx>
#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
#pragma once
#endif
#include <log4cplus/spi/loggerimpl.h>
namespace log4cplus {
namespace spi {
/**
* RootLogger sits at the top of the logger hierachy. It is a
* regular logger except that it provides several guarantees.
*
* First, it cannot be assigned a <code>NOT_SET_LOG_LEVEL</code>
* LogLevel. Second, since root logger cannot have a parent, the
* getChainedLogLevel method always returns the value of the
* ll field without walking the hierarchy.
*/
class LOG4CPLUS_EXPORT RootLogger : public LoggerImpl {
public:
// Ctors
/**
* The root logger names itself as "root". However, the root
* logger cannot be retrieved by name.
*/
RootLogger(Hierarchy& h, LogLevel ll);
// Methods
/**
* Return the assigned LogLevel value without walking the logger
* hierarchy.
*/
virtual LogLevel getChainedLogLevel() const;
/**
* Setting a NOT_SET_LOG_LEVEL value to the LogLevel of the root logger
* may have catastrophic results. We prevent this here.
*/
void setLogLevel(LogLevel ll);
};
} // end namespace spi
} // end namespace log4cplus
#endif // LOG4CPLUS_SPI_ROOT_LOGGER_HEADER_