读取配置文件动态创建对象 [C++] (3) 博客分类： OO CC++C#
源代码续
void
log4cplus :: PropertyConfigurator :: configureAppenders ()
{
Properties appenderProperties =
properties . getPropertySubset ( LOG4CPLUS_TEXT ( "appender." ));
// 根据 Appenders 文本获取相关的数据
vector < tstring > appendersProps = appenderProperties . propertyNames ();
for ( vector < tstring >:: iterator it = appendersProps . begin ();
it != appendersProps . end ();
++ it )
{
if ( (* it ). find ( LOG4CPLUS_TEXT ( '.' ) ) == tstring :: npos ) {
// 实现基本的数据采集获取功能
tstring factoryName = appenderProperties . getProperty (* it );
// 解析获得创建实例所需使用的有关 Factory 的方法
AppenderFactory * factory = getAppenderFactoryRegistry (). get ( factoryName );
// 通过工厂名称来获得相关的工厂方法
if ( factory == 0) {
tstring err =
LOG4CPLUS_TEXT ( "PropertyConfigurator::configureAppenders()- Cannot find AppenderFactory: " );
getLogLog (). error ( err + factoryName );
continue ;
}
Properties properties =
appenderProperties . getPropertySubset ((* it ) + LOG4CPLUS_TEXT ( "." ));
try {
// 创建相关的对象链接
SharedAppenderPtr appender = factory -> createObject ( properties );
if ( appender . get () == 0) {
tstring err =
LOG4CPLUS_TEXT ( "PropertyConfigurator::configureAppenders()- Failed to create appender: " );
getLogLog (). error ( err + * it );
}
// 实现对属性值的处理
else {
appender -> setName (* it );
appenders [* it ] = appender ;
}
}
catch ( std :: exception & e ) {
tstring err =
LOG4CPLUS_TEXT ( "PropertyConfigurator::configureAppenders()- Error while creating Appender: " );
getLogLog (). error ( err + LOG4CPLUS_C_STR_TO_TSTRING ( e . what ()));
}
}
} // end for loop
}
void
log4cplus :: PropertyConfigurator :: configureAdditivity ()
{
Properties additivityProperties =
properties . getPropertySubset ( LOG4CPLUS_TEXT ( "additivity." ));
vector < tstring > additivitysProps = additivityProperties . propertyNames ();
for ( vector < tstring >:: iterator it = additivitysProps . begin ();
it != additivitysProps . end ();
++ it )
{
Logger logger = getLogger (* it );
tstring actualValue = additivityProperties . getProperty (* it );
tstring value = toLower ( actualValue );
if ( value == LOG4CPLUS_TEXT ( "true" )) {
logger . setAdditivity ( true );
}
else if ( value == LOG4CPLUS_TEXT ( "false" )) {
logger . setAdditivity ( false );
}
else {
getLogLog (). warn ( LOG4CPLUS_TEXT ( "Invalid Additivity value: "" )
+ actualValue
+ LOG4CPLUS_TEXT ( """ ));
}
}
}