get optional user name mapper . when igfs is invoked from hadoop , user name is passed along the way to ensure that request will be performed with proper user context . user name is passed in a simple form and does n't contain any extended information , such as host , domain or kerberos realm . you may use name mapper to translate plain user name to full user name required by security engine of the underlying file system . for example you may want to use kerberosusernamemapper to user name from `` johndoe '' to `` johndoe@your.realm.com '' . concode_field_sep String[] cfgPaths concode_elem_sep long serialVersionUID concode_elem_sep UserNameMapper usrNameMapper concode_elem_sep String uri concode_field_sep void setUserNameMapper concode_elem_sep void setConfigPaths concode_elem_sep void writeExternal concode_elem_sep String[] getConfigPaths concode_elem_sep Object get concode_elem_sep void setUri concode_elem_sep void readExternal concode_elem_sep String getUri
UserNameMapper function ( ) { return usrNameMapper ; }