【paddle.distributed.fleet】add data_generator in distributed.fleet.dat…

…aset (PaddlePaddle#27345)

python/paddle/distributed/__init__.py

@@ -31,8 +31,13 @@
 
 # dygraph parallel apis
 __all__ += [
-    "init_parallel_env", "get_rank", "get_world_size", "prepare_context",
-    "ParallelEnv", "InMemoryDataset", "QueueDataset"
+    "init_parallel_env",
+    "get_rank",
+    "get_world_size",
+    "prepare_context",
+    "ParallelEnv",
+    "InMemoryDataset",
+    "QueueDataset",
 ]
 
 # collective apis

python/paddle/distributed/fleet/__init__.py

@@ -18,6 +18,7 @@
 from .base.fleet_base import Fleet
 from .base.util_factory import UtilBase
 from .dataset import *
+from .data_generator import MultiSlotDataGenerator, MultiSlotStringDataGenerator
 #from . import metrics
 
 __all__ = [
@@ -26,6 +27,8 @@
     "UserDefinedRoleMaker",
     "PaddleCloudRoleMaker",
     "Fleet",
+    "MultiSlotDataGenerator",
+    "MultiSlotStringDataGenerator",
     "Role",
 ]
 

python/paddle/distributed/fleet/data_generator/__init__.py

@@ -0,0 +1,14 @@
+#   Copyright (c) 2020 PaddlePaddle Authors. 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
+
+from .data_generator import *