refreshes configuration using the specified proxy user prefix for properties . concode_field_sep ImpersonationProvider sip concode_elem_sep String CONF_HADOOP_PROXYUSER concode_field_sep DefaultImpersonationProvider getDefaultImpersonationProvider concode_elem_sep ImpersonationProvider getInstance concode_elem_sep void authorize concode_elem_sep void authorize
void function ( Configuration arg0 , String arg1 ) { Preconditions . checkArgument ( arg1 != null && ! arg1 . isEmpty ( ) , "srini_string" ) ; ImpersonationProvider loc0 = getInstance ( arg0 ) ; loc0 . init ( arg1 ) ; sip = loc0 ; ProxyServers . refresh ( arg0 ) ; }