Allow LDAPObject classes (and sub-classes) to be serialized into a JSON
string using:
json.dumps(obj, default=ipalib.util.json_serialize)
Pavel
From 209162028b58ba8cc59e8c90409082eb8478a0dd Mon Sep 17 00:00:00 2001
From: Pavel Zuna <pz...@redhat.com>
Date: Mon, 9 Aug 2010 16:45:26 -0400
Subject: [PATCH 1/4] Make LDAPObject classes JSON serializable.
---
ipalib/plugins/baseldap.py | 17 +++++++++++++++++
ipalib/util.py | 6 ++++++
2 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/ipalib/plugins/baseldap.py b/ipalib/plugins/baseldap.py
index 11fd18e..52f32e3 100644
--- a/ipalib/plugins/baseldap.py
+++ b/ipalib/plugins/baseldap.py
@@ -21,6 +21,7 @@ Base classes for LDAP plugins.
"""
import re
+import json
from ipalib import crud, errors, uuid
from ipalib import Method, Object
@@ -29,6 +30,7 @@ from ipalib.base import NameSpace
from ipalib.cli import to_cli, from_cli
from ipalib import output
from ipalib.text import _
+from ipalib.util import json_serialize
def validate_add_attribute(ugettext, attr):
@@ -121,6 +123,21 @@ class LDAPObject(Object):
}
)
+ # list of attributes we want exported to JSON
+ json_friendly_attributes = (
+ 'parent_object', 'container_dn', 'object_name', 'object_name_plural',
+ 'object_class', 'object_class_config', 'default_attributes', 'label',
+ 'hidden_attributes', 'uuid_attribute', 'attribute_members', 'name',
+ 'takes_params',
+ )
+ def __json__(self):
+ json_dict = dict(
+ (a, getattr(self, a)) for a in self.json_friendly_attributes
+ )
+ json_dict['primary_key'] = self.primary_key.name
+ json_dict['methods'] = [m for m in self.methods]
+ return json_dict
+
# Options used by create and update.
_attr_options = (
diff --git a/ipalib/util.py b/ipalib/util.py
index 570d66e..ba111d4 100644
--- a/ipalib/util.py
+++ b/ipalib/util.py
@@ -31,6 +31,12 @@ from ipalib import errors
from ipapython import dnsclient
+def json_serialize(obj):
+ if not callable(getattr(obj, '__json__', None)):
+ # raise TypeError('%r is not JSON serializable')
+ return ''
+ return obj.__json__()
+
def get_current_principal():
try:
return
unicode(krbV.default_context().default_ccache().principal().name)
--
1.7.1.1
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