4 # Copyright (C) 2007, 2008 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 """Serializer abstraction module
23 This module introduces a simple abstraction over the serialization
24 backend (currently json).
27 # pylint: disable-msg=C0103
29 # C0103: Invalid name, since pylint doesn't see that Dump points to a
30 # function and not a constant
36 # Check whether the simplejson module supports indentation
39 simplejson.dumps(1, indent=_JSON_INDENT)
43 _RE_EOLSP = re.compile('[ \t]+$', re.MULTILINE)
46 def DumpJson(data, indent=True):
47 """Serialize a given object.
49 @param data: the data to serialize
50 @param indent: whether to indent output (depends on simplejson version)
52 @return: the string representation of data
55 if not indent or _JSON_INDENT is None:
56 txt = simplejson.dumps(data)
58 txt = simplejson.dumps(data, indent=_JSON_INDENT)
60 txt = _RE_EOLSP.sub("", txt)
61 if not txt.endswith('\n'):
67 """Unserialize data from a string.
69 @param txt: the json-encoded form
71 @return: the original data
74 return simplejson.loads(txt)