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# Copyright (C) 2014 Canonical Ltd.
# Author: Colin Watson <cjwatson@ubuntu.com>
# 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 3 of the License.
#
# 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, see <http://www.gnu.org/licenses/>.
"""Helper functions to turn json-glib objects into Python objects."""
from __future__ import print_function
__metaclass__ = type
__all__ = [
'ClickJsonError',
'json_array_to_python',
'json_node_to_python',
'json_object_to_python',
]
from gi.repository import Json
class ClickJsonError(Exception):
pass
def json_array_to_python(array):
return [json_node_to_python(element) for element in array.get_elements()]
def json_object_to_python(obj):
ret = {}
for name in obj.get_members():
ret[name] = json_node_to_python(obj.get_member(name))
return ret
def json_node_to_python(node):
node_type = node.get_node_type()
if node_type == Json.NodeType.ARRAY:
return json_array_to_python(node.get_array())
elif node_type == Json.NodeType.OBJECT:
return json_object_to_python(node.get_object())
elif node_type == Json.NodeType.NULL:
return None
elif node_type == Json.NodeType.VALUE:
return node.get_value()
else:
raise ClickJsonError(
"Unknown JSON node type \"%s\"" % node_type.value_nick)
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