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# Authors:
# Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2009 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 only
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Simple description of return values.
"""
from inspect import getdoc
from types import NoneType
from plugable import ReadOnly, lock
class Output(ReadOnly):
"""
Simple description of a member in the return value ``dict``.
"""
type = None
validate = None
doc = None
def __init__(self, name, type=None, doc=None):
self.name = name
if type is not None:
self.type = type
if doc is not None:
self.doc = doc
lock(self)
def __repr__(self):
return '%s(%r, %r, %r)' % (
self.__class__.__name__, self.name, self.type, self.doc,
)
class Entry(Output):
type = dict
doc = 'A dictionary representing an LDAP entry'
emsg = """%s.validate_output() => %s.validate():
output[%r][%d]: need a %r; got a %r: %r"""
class ListOfEntries(Output):
type = (list, tuple)
doc = 'A list of LDAP entries'
def validate(self, cmd, entries):
assert isinstance(entries, self.type)
for (i, entry) in enumerate(entries):
if not isinstance(entry, dict):
raise TypeError(emsg % (cmd.name, self.__class__.__name__,
self.name, i, dict, type(entry), entry)
)
result = Output('result', doc='All commands should at least have a result')
summary = Output('summary', (unicode, NoneType),
'User-friendly description of action performed'
)
value = Output('value', unicode,
"The primary_key value of the entry, e.g. 'jdoe' for a user"
)
standard = (result, summary)
standard_entry = (
Entry('result'),
value,
summary,
)
standard_list_of_entries = (
ListOfEntries('result'),
Output('count', int, 'Number of entries returned'),
Output('truncated', bool, 'True if not all results were returned'),
summary,
)
standard_delete = (
Output('result', bool, 'True means the operation was successful'),
value,
summary,
)
standard_value = standard_delete
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