Merge pull request #190 from guru4elephant/add_serve_launch

add one line command for serve

python/paddle_serving_server/serve.py

+# Copyright (c) 2019 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.
+"""
+Usage:
+    Host a trained paddle model with one line command
+    Example:
+        python -m paddle_serving_server.serve model 9292
+"""
+
+def start_standard_model(model_folder, port, thread_num):
+    import paddle_serving_server as serving
+    op_maker = serving.OpMaker()
+    read_op = op_maker.create('general_reader')
+    general_infer_op = op_maker.create('general_infer')
+    general_response_op = op_maker.create('general_response')
+
+    op_seq_maker = serving.OpSeqMaker()
+    op_seq_maker.add_op(read_op)
+    op_seq_maker.add_op(general_infer_op)
+    op_seq_maker.add_op(general_response_op)
+
+    server = Server()
+    server.set_op_sequence(op_seq_maker.get_op_sequence())
+    server.set_num_thread(thread_num)
+
+    server.load_model_config(model_folder)
+    port = port
+    server.prepare_server(workdir="workdir", port=port, device="cpu")
+    server.run_server()
+
+if __name__ == "__main__":
+    if len(sys.argv) != 4:
+        print("{} model_folder port thread".format(sys.argv[0]))
+        sys.exit(0)
+    start_standard_model(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))