Invalidate retry cache in both directions

synapse/replication/expire_cache.py

@@ -0,0 +1,60 @@
+# Copyright 2016 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from synapse.http.server import respond_with_json_bytes, request_handler
+from synapse.http.servlet import parse_json_object_from_request
+
+from twisted.web.resource import Resource
+from twisted.web.server import NOT_DONE_YET
+
+
+class ExpireCacheResource(Resource):
+    """
+    HTTP endpoint for expiring storage caches.
+
+    POST /_synapse/replication/expire_cache HTTP/1.1
+    Content-Type: application/json
+
+    {
+        "invalidate": [
+            {
+                "name": "func_name",
+                "keys": ["key1", "key2"]
+            }
+        ]
+    }
+    """
+
+    def __init__(self, hs):
+        Resource.__init__(self)  # Resource is old-style, so no super()
+
+        self.store = hs.get_datastore()
+        self.version_string = hs.version_string
+        self.clock = hs.get_clock()
+
+    def render_POST(self, request):
+        self._async_render_POST(request)
+        return NOT_DONE_YET
+
+    @request_handler()
+    def _async_render_POST(self, request):
+        content = parse_json_object_from_request(request)
+
+        for row in content["invalidate"]:
+            name = row["name"]
+            keys = tuple(row["keys"])
+
+            getattr(self.store, name).invalidate(keys)
+
+        respond_with_json_bytes(request, 200, "{}")