add front demo in this project
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LFtid1056/cloudfront/code/log4cplus/loglevel.h
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LFtid1056/cloudfront/code/log4cplus/loglevel.h
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// -*- C++ -*-
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// Module: Log4CPLUS
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// File: loglevel.h
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// Created: 6/2001
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// Author: Tad E. Smith
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//
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//
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// Copyright 2001-2017 Tad E. Smith
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/** @file
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* This header defines the LogLevel type.
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*/
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#ifndef LOG4CPLUS_LOGLEVEL_HEADER_
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#define LOG4CPLUS_LOGLEVEL_HEADER_
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#include <log4cplus/config.hxx>
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#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
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#pragma once
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#endif
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#include <vector>
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#include <log4cplus/tstring.h>
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namespace log4cplus {
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/**
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* \typedef int LogLevel
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* Defines the minimum set of priorities recognized by the system,
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* that is {@link #FATAL_LOG_LEVEL}, {@link #ERROR_LOG_LEVEL}, {@link
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* #WARN_LOG_LEVEL}, {@link #INFO_LOG_LEVEL}, {@link #DEBUG_LOG_LEVEL},
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* and {@link #TRACE_LOG_LEVEL}.
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*/
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typedef int LogLevel;
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/** \var const LogLevel OFF_LOG_LEVEL
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* The <code>OFF_LOG_LEVEL</code> LogLevel is used during configuration to
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* turn off logging. */
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const LogLevel OFF_LOG_LEVEL = 60000;
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/** \var const LogLevel FATAL_LOG_LEVEL
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* The <code>FATAL_LOG_LEVEL</code> LogLevel designates very severe error
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* events that will presumably lead the application to abort. */
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const LogLevel FATAL_LOG_LEVEL = 50000;
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/** \var const LogLevel ERROR_LOG_LEVEL
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* The <code>ERROR_LOG_LEVEL</code> LogLevel designates error events that
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* might still allow the application to continue running. */
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const LogLevel ERROR_LOG_LEVEL = 40000;
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/** \var const LogLevel WARN_LOG_LEVEL
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* The <code>WARN_LOG_LEVEL</code> LogLevel designates potentially harmful
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* situations. */
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const LogLevel WARN_LOG_LEVEL = 30000;
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/** \var const LogLevel INFO_LOG_LEVEL
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* The <code>INFO_LOG_LEVEL</code> LogLevel designates informational
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* messages that highlight the progress of the application at
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* coarse-grained level. */
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const LogLevel INFO_LOG_LEVEL = 20000;
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/** \var const LogLevel DEBUG_LOG_LEVEL
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* The <code>DEBUG_LOG_LEVEL</code> LogLevel designates fine-grained
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* informational events that are most useful to debug an application. */
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const LogLevel DEBUG_LOG_LEVEL = 10000;
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/** \var const LogLevel TRACE_LOG_LEVEL
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* The <code>TRACE_LOG_LEVEL</code> LogLevel is used to "trace" entry
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* and exiting of methods. */
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const LogLevel TRACE_LOG_LEVEL = 0;
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/** \var const LogLevel ALL_LOG_LEVEL
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* The <code>ALL_LOG_LEVEL</code> LogLevel is used during configuration to
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* turn on all logging. */
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const LogLevel ALL_LOG_LEVEL = TRACE_LOG_LEVEL;
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/** \var const LogLevel NOT_SET_LOG_LEVEL
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* The <code>NOT_SET_LOG_LEVEL</code> LogLevel is used to indicated that
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* no particular LogLevel is desired and that the default should be used.
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*/
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const LogLevel NOT_SET_LOG_LEVEL = -1;
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/**
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* This method type defined the signature of methods that convert LogLevels
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* into strings.
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*
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* <b>Note:</b> Must return an empty <code>tstring</code> for unrecognized values.
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*/
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typedef log4cplus::tstring const & (*LogLevelToStringMethod)(LogLevel);
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/**
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* This method type defined the signature of methods that convert strings
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* into LogLevels.
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*
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* <b>Note:</b> Must return <code>NOT_SET_LOG_LEVEL</code> for unrecognized values.
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*/
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typedef LogLevel (*StringToLogLevelMethod)(const log4cplus::tstring&);
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/**
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* This class is used to "manage" LogLevel definitions. This class is also
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* how "derived" LogLevels are created. Here are the steps to creating a
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* "derived" LogLevel:
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* <ol>
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* <li>Create a LogLevel constant (greater than 0)</li>
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* <li>Define a string to represent that constant</li>
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* <li>Implement a LogLevelToStringMethod method.</li>
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* <li>Implement a StringToLogLevelMethod method.</li>
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* <li>create a "static initializer" that registers those 2 methods
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* with the LogLevelManager singleton.</li>
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* </ol>
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*/
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class LOG4CPLUS_EXPORT LogLevelManager {
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public:
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LogLevelManager();
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~LogLevelManager();
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/**
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* This method is called by all Layout classes to convert a LogLevel
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* into a string.
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*
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* Note: It traverses the list of <code>LogLevelToStringMethod</code>
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* to do this, so all "derived" LogLevels are recognized as well.
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*/
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log4cplus::tstring const & toString(LogLevel ll) const;
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/**
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* This method is called by all classes internally to log4cplus to
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* convert a string into a LogLevel.
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*
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* Note: It traverses the list of <code>StringToLogLevelMethod</code>
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* to do this, so all "derived" LogLevels are recognized as well.
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*/
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LogLevel fromString(const log4cplus::tstring& arg) const;
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/**
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* When creating a "derived" LogLevel, a <code>LogLevelToStringMethod</code>
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* should be defined and registered with the LogLevelManager by calling
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* this method.
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*
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* @see pushFromStringMethod
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*/
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void pushToStringMethod(LogLevelToStringMethod newToString);
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/**
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* When creating a "derived" LogLevel, a <code>StringToLogLevelMethod</code>
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* should be defined and registered with the LogLevelManager by calling
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* this method.
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*
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* @see pushToStringMethod
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*/
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void pushFromStringMethod(StringToLogLevelMethod newFromString);
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private:
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// Data
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struct LogLevelToStringMethodRec
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{
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LogLevelToStringMethodRec ();
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LogLevelToStringMethodRec (LogLevelToStringMethod);
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LogLevelToStringMethod func;
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};
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typedef std::vector<LogLevelToStringMethodRec> LogLevelToStringMethodList;
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LogLevelToStringMethodList toStringMethods;
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typedef std::vector<StringToLogLevelMethod> StringToLogLevelMethodList;
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StringToLogLevelMethodList fromStringMethods;
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// Disable Copy
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LogLevelManager(const LogLevelManager&);
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LogLevelManager& operator=(const LogLevelManager&);
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};
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/**
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* Returns the singleton LogLevelManager.
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*/
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LOG4CPLUS_EXPORT LogLevelManager& getLogLevelManager();
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}
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#endif // LOG4CPLUS_LOGLEVEL_HEADER_
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