is the way of code is correct or not to get the logged username in plone

[sreenath167]

 @memoize
    def _data(self):
        """ """
        context = aq_inner(self.context)
        catalog = getToolByName(context, 'portal_catalog')
        path = context.getPhysicalPath()
        mt =  getToolByName(self, 'portal_membership')
        if  mt.isAnonymousUser():
            return ''
        else:
            member = mt.getAuthenticatedMember()
            #path += '/'+'MyMicroSites'+'/'+ member.getUserName()+'Home'
            path += '/'+'MyMicroSites'+'/'+ 'sreenath'+'Home'
            #path += '/'+  member.getUserName() + 'MyContacts' + '/' +  member.getUserName() + 'Contacts' + '/advcntsearch'
            path += '/'+ 'sreenath' + 'MyContacts' + '/' + 'sreenath' + 'Contacts' + '/advcntsearch'

        if path == '':
            return ''

        return path