import org.codehaus.plexus.logging.LogEnabled; //导入依赖的package包/类
@Override
public void initialize() throws InitializationException {
    if (apolloDataSourceProviderPresent) {
        try {
            m_delegate = (DataSourceProvider)(Class.forName(apolloDataSourceProviderClass).newInstance());
        } catch (Throwable ex) {
            m_logger.error("Loading apollo datasource provider failed", ex);
        }
    }
    if (m_delegate == null) {
        m_delegate = createDefaultDataSourceProvider();
    }
    if (m_delegate instanceof LogEnabled) {
        ((LogEnabled)m_delegate).enableLogging(m_logger);
    }
    logger.info("[initialize][DataSourceProvider]{}", m_delegate);
}