class PMAConfigGenerator():
    def __init__(self, instname=''):
        self.log = logging.getLogger('sflog')
        if not instname:
            raise ValueError('instname cannot be empty')

        if not os.path.isfile('pma-' + instname + '.ini'):
            raise FileNotFoundError('Could not find instance configuration file')
        else:
            self.instname = 'pma-' + instname
            self.cfgfile = self.instname + '.ini'

        self.log.debug('PMAConfigGenerator instance for %s initiated' % self.instname)

        try:
            self.cfg = ConfigParser()
            self.cfg.read(self.cfgfile)
        except Exception, e:
            self.log.critical('Unable to parse config file %s (%s)' % (self.cfgfile, e))
            sys.exit(0)

    def __str__(self):
        return u'PMAConfigGenerator instance for %s' % self.instname

    def __repr__(self):
        return u'PMAConfigGenerator instance for %s' % self.instname