use future in channel && remove type def

core/configure/CMakeLists.txt

@@ -39,6 +39,9 @@ py_grpc_proto_compile(multi_lang_general_model_service_py_proto SRCS proto/multi
 add_custom_target(multi_lang_general_model_service_py_proto_init ALL COMMAND ${CMAKE_COMMAND} -E touch __init__.py)
 add_dependencies(multi_lang_general_model_service_py_proto multi_lang_general_model_service_py_proto_init)
 
+py_grpc_proto_compile(general_python_service_py_proto SRCS proto/general_python_service.proto)
+add_custom_target(general_python_service_py_proto_init ALL COMMAND ${CMAKE_COMMAND} -E touch __init__.py)
+add_dependencies(general_python_service_py_proto general_python_service_py_proto_init)
 if (CLIENT)
 py_proto_compile(sdk_configure_py_proto SRCS proto/sdk_configure.proto)
 add_custom_target(sdk_configure_py_proto_init ALL COMMAND ${CMAKE_COMMAND} -E touch __init__.py)
@@ -60,6 +63,12 @@ add_custom_command(TARGET multi_lang_general_model_service_py_proto POST_BUILD
                 COMMAND cp *.py ${PADDLE_SERVING_BINARY_DIR}/python/paddle_serving_client/proto
                 COMMENT "Copy generated multi_lang_general_model_service proto file into directory paddle_serving_client/proto."
                 WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+
+add_custom_command(TARGET general_python_service_py_proto POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E make_directory ${PADDLE_SERVING_BINARY_DIR}/python/paddle_serving_client/proto
+        COMMAND cp *.py ${PADDLE_SERVING_BINARY_DIR}/python/paddle_serving_client/proto
+        COMMENT "Copy generated general_python_service proto file into directory paddle_serving_client/proto."
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
 endif()
 
 if (APP)
@@ -79,9 +88,6 @@ py_proto_compile(pyserving_channel_py_proto SRCS proto/pyserving_channel.proto)
 add_custom_target(pyserving_channel_py_proto_init ALL COMMAND ${CMAKE_COMMAND} -E touch __init__.py)
 add_dependencies(pyserving_channel_py_proto pyserving_channel_py_proto_init)
 
-py_grpc_proto_compile(general_python_service_py_proto SRCS proto/general_python_service.proto)
-add_custom_target(general_python_service_py_proto_init ALL COMMAND ${CMAKE_COMMAND} -E touch __init__.py)
-add_dependencies(general_python_service_py_proto general_python_service_py_proto_init)
 if (NOT WITH_GPU)
 add_custom_command(TARGET server_config_py_proto POST_BUILD
 		COMMAND ${CMAKE_COMMAND} -E make_directory ${PADDLE_SERVING_BINARY_DIR}/python/paddle_serving_server/proto

python/paddle_serving_server/general_python_service.proto → core/configure/proto/general_python_service.proto

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 syntax = "proto2";
+package baidu.paddle_serving.pyserving;
 
 service GeneralPythonService {
   rpc inference(Request) returns (Response) {}
@@ -21,11 +22,15 @@ service GeneralPythonService {
 message Request {
   repeated bytes feed_insts = 1;
   repeated string feed_var_names = 2;
+  repeated bytes shape = 3;
+  repeated string type = 4;
 }
 
 message Response {
   repeated bytes fetch_insts = 1;
   repeated string fetch_var_names = 2;
-  required int32 is_error = 3;
+  required int32 ecode = 3;
   optional string error_info = 4;
+  repeated bytes shape = 5;
+  repeated string type = 6;
 }

python/paddle_serving_server/python_service_channel.proto → core/configure/proto/pyserving_channel.proto

@@ -13,17 +13,19 @@
 // limitations under the License.
 
 syntax = "proto2";
+package baidu.paddle_serving.pyserving;
 
 message ChannelData {
   repeated Inst insts = 1;
   required int32 id = 2;
-  optional string type = 3
-      [ default = "CD" ]; // CD(channel data), CF(channel futures)
-  required int32 is_error = 4;
+  required int32 type = 3 [ default = 0 ];
+  required int32 ecode = 4;
   optional string error_info = 5;
 }
 
 message Inst {
   required bytes data = 1;
   required string name = 2;
+  required bytes shape = 3;
+  required string type = 4;
 }

python/examples/fit_a_line/test_py_client.py

@@ -30,8 +30,7 @@ lp = LineProfiler()
 lp_wrapper = lp(client.predict)
 
 for i in range(1):
-    fetch_map = lp_wrapper(
-        feed={"x": x}, fetch_with_type={"combine_op_output": "float"})
+    fetch_map = lp_wrapper(feed={"x": x}, fetch=["combine_op_output"])
     # fetch_map = client.predict(
     # feed={"x": x}, fetch_with_type={"combine_op_output": "float"})
     print(fetch_map)

python/examples/fit_a_line/test_py_server.py

@@ -16,29 +16,26 @@
 from paddle_serving_server.pyserver import Op
 from paddle_serving_server.pyserver import Channel
 from paddle_serving_server.pyserver import PyServer
-from paddle_serving_server import python_service_channel_pb2
 import numpy as np
 import logging
 
 logging.basicConfig(
     format='%(asctime)s %(levelname)-8s [%(filename)s:%(lineno)d] %(message)s',
     datefmt='%Y-%m-%d %H:%M',
+    #level=logging.DEBUG)
     level=logging.INFO)
 
-# channel data: {name(str): data(bytes)}
+# channel data: {name(str): data(narray)}
 
 
 class CombineOp(Op):
     def preprocess(self, input_data):
         cnt = 0
-        for op_name, data in input_data.items():
+        for op_name, channeldata in input_data.items():
             logging.debug("CombineOp preprocess: {}".format(op_name))
-            cnt += np.frombuffer(data.insts[0].data, dtype='float')
-        data = python_service_channel_pb2.ChannelData()
-        inst = python_service_channel_pb2.Inst()
-        inst.data = np.ndarray.tobytes(cnt)
-        inst.name = "combine_op_output"
-        data.insts.append(inst)
+            data = channeldata.parse()
+            cnt += data["prediction"]
+        data = {"combine_op_output": cnt}
         return data
 
     def postprocess(self, output_data):
@@ -47,12 +44,8 @@ class CombineOp(Op):
 
 class UciOp(Op):
     def postprocess(self, output_data):
-        data = python_service_channel_pb2.ChannelData()
-        inst = python_service_channel_pb2.Inst()
-        pred = np.array(output_data["price"][0][0], dtype='float')
-        inst.data = np.ndarray.tobytes(pred)
-        inst.name = "prediction"
-        data.insts.append(inst)
+        pred = np.array(output_data["price"][0][0], dtype='float32')
+        data = {"prediction": pred}
         return data
 
 
@@ -60,12 +53,10 @@ read_channel = Channel(name="read_channel")
 combine_channel = Channel(name="combine_channel")
 out_channel = Channel(name="out_channel")
 
-cnn_op = UciOp(
-    name="cnn",
+uci1_op = UciOp(
+    name="uci1",
     input=read_channel,
-    in_dtype='float',
     outputs=[combine_channel],
-    out_dtype='float',
     server_model="./uci_housing_model",
     server_port="9393",
     device="cpu",
@@ -73,15 +64,13 @@ cnn_op = UciOp(
     server_name="127.0.0.1:9393",
     fetch_names=["price"],
     concurrency=1,
-    timeout=0.01,
+    timeout=0.1,
     retry=2)
 
-bow_op = UciOp(
-    name="bow",
+uci2_op = UciOp(
+    name="uci2",
     input=read_channel,
-    in_dtype='float',
     outputs=[combine_channel],
-    out_dtype='float',
     server_model="./uci_housing_model",
     server_port="9292",
     device="cpu",
@@ -95,9 +84,7 @@ bow_op = UciOp(
 combine_op = CombineOp(
     name="combine",
     input=combine_channel,
-    in_dtype='float',
     outputs=[out_channel],
-    out_dtype='float',
     concurrency=1,
     timeout=-1,
     retry=1)
@@ -109,8 +96,8 @@ pyserver = PyServer(profile=False, retry=1)
 pyserver.add_channel(read_channel)
 pyserver.add_channel(combine_channel)
 pyserver.add_channel(out_channel)
-pyserver.add_op(cnn_op)
-pyserver.add_op(bow_op)
+pyserver.add_op(uci1_op)
+pyserver.add_op(uci2_op)
 pyserver.add_op(combine_op)
 pyserver.prepare_server(port=8080, worker_num=2)
 pyserver.run_server()

python/paddle_serving_client/general_python_service.proto

-// 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
-// limitations under the License.
-
-syntax = "proto2";
-
-service GeneralPythonService {
-  rpc inference(Request) returns (Response) {}
-}
-
-message Request {
-  repeated bytes feed_insts = 1;
-  repeated string feed_var_names = 2;
-}
-
-message Response {
-  repeated bytes fetch_insts = 1;
-  repeated string fetch_var_names = 2;
-}

python/paddle_serving_client/pyclient.py

@@ -13,8 +13,8 @@
 # limitations under the License.
 # pylint: disable=doc-string-missing
 import grpc
-import general_python_service_pb2
-import general_python_service_pb2_grpc
+from .proto import general_python_service_pb2
+from .proto import general_python_service_pb2_grpc
 import numpy as np
 
 
@@ -33,24 +33,27 @@ class PyClient(object):
             if not isinstance(data, np.ndarray):
                 raise TypeError(
                     "only numpy array type is supported temporarily.")
-            data2bytes = np.ndarray.tobytes(data)
             req.feed_var_names.append(name)
-            req.feed_insts.append(data2bytes)
+            req.feed_insts.append(data.tobytes())
+            req.shape.append(np.array(data.shape, dtype="int32").tobytes())
+            req.type.append(str(data.dtype))
         return req
 
-    def predict(self, feed, fetch_with_type):
+    def predict(self, feed, fetch):
         if not isinstance(feed, dict):
             raise TypeError(
                 "feed must be dict type with format: {name: value}.")
-        if not isinstance(fetch_with_type, dict):
+        if not isinstance(fetch, list):
             raise TypeError(
-                "fetch_with_type must be dict type with format: {name : type}.")
+                "fetch_with_type must be list type with format: [name].")
         req = self._pack_data_for_infer(feed)
         resp = self._stub.inference(req)
         fetch_map = {}
         for idx, name in enumerate(resp.fetch_var_names):
-            if name not in fetch_with_type:
+            if name not in fetch:
                 continue
             fetch_map[name] = np.frombuffer(
-                resp.fetch_insts[idx], dtype=fetch_with_type[name])
+                resp.fetch_insts[idx], dtype=resp.type[idx])
+            fetch_map[name].shape = np.frombuffer(
+                resp.shape[idx], dtype="int32")
         return fetch_map

python/paddle_serving_server/serve.py

@@ -49,6 +49,10 @@ def parse_args():  # pylint: disable=doc-string-missing
         type=int,
         default=512 * 1024 * 1024,
         help="Limit sizes of messages")
+    parser.add_argument(
+        "--use_multilang",
+        action='store_true',
+        help="Use Multi-language-service")
     return parser.parse_args()
 
 
@@ -63,6 +67,7 @@ def start_standard_model():  # pylint: disable=doc-string-missing
     ir_optim = args.ir_optim
     max_body_size = args.max_body_size
     use_mkl = args.use_mkl
+    use_multilang = args.use_multilang
 
     if model == "":
         print("You must specify your serving model")
@@ -79,6 +84,11 @@ def start_standard_model():  # pylint: disable=doc-string-missing
     op_seq_maker.add_op(general_infer_op)
     op_seq_maker.add_op(general_response_op)
 
+    server = None
+    if use_multilang:
+        server = serving.MultiLangServer()
+        server.set_op_sequence(op_seq_maker.get_op_sequence())
+    else:
         server = serving.Server()
         server.set_op_sequence(op_seq_maker.get_op_sequence())
         server.set_num_threads(thread_num)