Example #1
0
def report_deprecated_feature(logger, msg, *args, **kwargs):
    """Call this function when a deprecated feature is used.

    If the system is configured for fatal deprecations then the message
    is logged at the 'critical' level and :class:`DeprecatedConfig` will
    be raised.

    Otherwise, the message will be logged (once) at the 'warn' level.

    :raises: :class:`DeprecatedConfig` if the system is configured for
             fatal deprecations.
    """
    stdmsg = _("Deprecated: %s") % msg
    CONF.register_opts(deprecated_opts)
    if CONF.fatal_deprecations:
        logger.critical(stdmsg, *args, **kwargs)
        raise DeprecatedConfig(msg=stdmsg)

    # Using a list because a tuple with dict can't be stored in a set.
    sent_args = _deprecated_messages_sent.setdefault(msg, list())

    if args in sent_args:
        # Already logged this message, so don't log it again.
        return

    sent_args.append(args)
    logger.warn(stdmsg, *args, **kwargs)
Example #2
0
def print_list(objs, fields, formatters=None, sortby_index=0,
               mixed_case_fields=None, field_labels=None):
    """Print a list or objects as a table, one row per object.

    :param objs: iterable of :class:`Resource`
    :param fields: attributes that correspond to columns, in order
    :param formatters: `dict` of callables for field formatting
    :param sortby_index: index of the field for sorting table rows
    :param mixed_case_fields: fields corresponding to object attributes that
        have mixed case names (e.g., 'serverId')
    :param field_labels: Labels to use in the heading of the table, default to
        fields.
    """
    formatters = formatters or {}
    mixed_case_fields = mixed_case_fields or []
    field_labels = field_labels or fields
    if len(field_labels) != len(fields):
        raise ValueError(_("Field labels list %(labels)s has different number "
                           "of elements than fields list %(fields)s"),
                         {'labels': field_labels, 'fields': fields})

    if sortby_index is None:
        kwargs = {}
    else:
        kwargs = {'sortby': field_labels[sortby_index]}
    pt = prettytable.PrettyTable(field_labels)
    pt.align = 'l'

    for o in objs:
        row = []
        for field in fields:
            if field in formatters:
                row.append(formatters[field](o))
            else:
                if field in mixed_case_fields:
                    field_name = field.replace(' ', '_')
                else:
                    field_name = field.lower().replace(' ', '_')
                data = getattr(o, field_name, '')
                row.append(data)
        pt.add_row(row)

    if six.PY3:
        print(encodeutils.safe_encode(pt.get_string(**kwargs)).decode())
    else:
        print(encodeutils.safe_encode(pt.get_string(**kwargs)))
Example #3
0
 def __init__(self, missing):
     self.missing = missing
     msg = _("Missing arguments: %s") % ", ".join(missing)
     super(MissingArgs, self).__init__(msg)