From 05630758f25d958bf60fde4df5f80a89e4a9a0ac Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Thu, 29 Mar 2018 22:57:28 +0100 Subject: Use static JSONEncoders using json.dumps with custom options requires us to create a new JSONEncoder on each call. It's more efficient to create one upfront and reuse it. --- synapse/util/frozenutils.py | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'synapse/util/frozenutils.py') diff --git a/synapse/util/frozenutils.py b/synapse/util/frozenutils.py index 6322f0f55c..f497b51f4a 100644 --- a/synapse/util/frozenutils.py +++ b/synapse/util/frozenutils.py @@ -14,6 +14,7 @@ # limitations under the License. from frozendict import frozendict +import simplejson as json def freeze(o): @@ -49,3 +50,21 @@ def unfreeze(o): pass return o + + +def _handle_frozendict(obj): + """Helper for EventEncoder. Makes frozendicts serializable by returning + the underlying dict + """ + if type(obj) is frozendict: + # fishing the protected dict out of the object is a bit nasty, + # but we don't really want the overhead of copying the dict. + return obj._dict + raise TypeError('Object of type %s is not JSON serializable' % + obj.__class__.__name__) + + +# A JSONEncoder which is capable of encoding frozendics without barfing +frozendict_json_encoder = json.JSONEncoder( + default=_handle_frozendict, +) -- cgit 1.4.1