ADD file via upload

serializer.py

@@ -0,0 +1,61 @@
+# coding=utf-8
+# Copyright 2020 The OpenBMB team. All rights reserved.
+#
+# 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 json
+import pickle
+
+
+class Serializer:
+    def __init__(self) -> None:
+        pass
+
+    def serialize(self, obj) -> bytes:
+        raise NotImplementedError()
+
+    def deserialize(self, data: bytes):
+        raise NotImplementedError()
+
+
+class PickleSerializer(Serializer):
+    def __init__(self) -> None:
+        pass
+
+    def serialize(self, obj) -> bytes:
+        return pickle.dumps(obj)
+
+    def deserialize(self, data: bytes):
+        return pickle.loads(data)
+
+
+class JsonSerializer(Serializer):
+    def __init__(self) -> None:
+        pass
+
+    def serialize(self, obj) -> bytes:
+        return json.dumps(obj, ensure_ascii=False).encode("utf-8")
+
+    def deserialize(self, data: bytes):
+        return json.loads(data.decode("utf-8"))
+
+
+class RawSerializer(Serializer):
+    def __init__(self) -> None:
+        pass
+
+    def serialize(self, obj) -> bytes:
+        return obj
+
+    def deserialize(self, data: bytes):
+        return data