3 files changed, 90 insertions, 0 deletions
diff --git a/synapse/storage/engines/__init__.py b/synapse/storage/engines/__init__.py
new file mode 100644
index 0000000000..709b6f88ac
--- /dev/null
+++ b/synapse/storage/engines/__init__.py
@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 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 .maria import MariaEngine
+from .sqlite3 import Sqlite3Engine
+
+
+SUPPORTED_MODULE = {
+    "sqlite3": Sqlite3Engine,
+    "mysql.connector": MariaEngine,
+}
+
+
+def create_engine(name):
+    engine_class = SUPPORTED_MODULE.get(name, None)
+
+    if engine_class:
+        module = __import__(name)
+        return engine_class(module)
+
+    raise RuntimeError(
+        "Unsupported database engine '%s'" % (name,)
+    )
diff --git a/synapse/storage/engines/maria.py b/synapse/storage/engines/maria.py
new file mode 100644
index 0000000000..df47763647
--- /dev/null
+++ b/synapse/storage/engines/maria.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 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.
+
+
+import types
+
+
+class MariaEngine(object):
+    def __init__(self, database_module):
+        self.module = database_module
+
+    def convert_param_style(self, sql):
+        return sql.replace("?", "%s")
+
+    def encode_parameter(self, param):
+        if isinstance(param, types.BufferType):
+            return str(param)
+        return param
diff --git a/synapse/storage/engines/sqlite3.py b/synapse/storage/engines/sqlite3.py
new file mode 100644
index 0000000000..639cdea41d
--- /dev/null
+++ b/synapse/storage/engines/sqlite3.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 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.
+
+
+class Sqlite3Engine(object):
+    def __init__(self, database_module):
+        self.module = database_module
+
+    def convert_param_style(self, sql):
+        return sql
+
+    def encode_parameter(self, param):
+        return param