時間的痕跡

在全局函數中完成 LoggerAppender 的初始化工作

initializeFactoryRegistry ();

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void ? initializeFactoryRegistry () {

??????? AppenderFactoryRegistry & reg = getAppenderFactoryRegistry ();

??????? auto_ptr < AppenderFactory > ptr1 ( new ? ConsoleAppenderFactory ());

??????? reg . put ( ptr1 );

??????? auto_ptr < AppenderFactory > ptr2 ( new ? NullAppenderFactory ());

??????? reg . put ( ptr2 );

??????? auto_ptr < AppenderFactory > ptr3 ( new ? FileAppenderFactory ());

??????? reg . put ( ptr3 );

??????? auto_ptr < AppenderFactory > ptr4 ( new ? RollingFileAppenderFactory ());

??????? reg . put ( ptr4 );

??????? auto_ptr < AppenderFactory > ptr5 ( new ? DailyRollingFileAppenderFactory ());

??????? reg . put ( ptr5 );

??????? auto_ptr < AppenderFactory > ptr6 ( new ? SocketAppenderFactory ());

??????? reg . put ( ptr6 );

#if defined( _WIN32 )

??????? auto_ptr < AppenderFactory > ptr7 ( new ? NTEventLogAppenderFactory ());

??????? reg . put ( ptr7 );

#elif defined( HAVE_SYSLOG_H )

??????? auto_ptr < AppenderFactory > ptr8 ( new ? SysLogAppenderFactory ());

??????? reg . put ( ptr8 );

#endif

??????? LayoutFactoryRegistry & reg2 = getLayoutFactoryRegistry ();

??????? auto_ptr < LayoutFactory > ptr21 ( new ? SimpleLayoutFactory ());

??????? reg2 . put ( ptr21 );

??????? auto_ptr < LayoutFactory > ptr22 ( new ? TTCCLayoutFactory ());

??????? reg2 . put ( ptr22 );

??????? auto_ptr < LayoutFactory > ptr23 ( new ? PatternLayoutFactory ());

??????? reg2 . put ( ptr23 );

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??????? FilterFactoryRegistry & reg3 = getFilterFactoryRegistry ();

??????? auto_ptr < FilterFactory > ptr31 ( new ? DenyAllFilterFactory ());

??????? reg3 . put ( ptr31 );

??????? auto_ptr < FilterFactory > ptr32 ( new ? LogLevelMatchFilterFactory ());

??????? reg3 . put ( ptr32 );

??????? auto_ptr < FilterFactory > ptr33 ( new ? LogLevelRangeFilterFactory ());

??????? reg3 . put ( ptr33 );

??????? auto_ptr < FilterFactory > ptr34 ( new ? StringMatchFilterFactory ());

??????? reg3 . put ( ptr34 );

}

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通過這種方式來實現 ?

????????????? AppenderFactoryRegistry

?????????????????? LayoutFactoryRegistry

?????????????????? FilterFactoryRegistry

?????????????????? 的初始化工作 – 如果要加入新的類型的數據的支持 , 需要將這部分的內容也要實現

???????

???? ???? 如何利用 Registry 中的內容來實現對象數據的創建 ?

注意

得到的指針內容都是 Factory 中定義的內容 ,

通過調用 Factory 方法來獲取具體的能夠使用的對象的實例