add a db management client for later job management

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "deps/tugraph-db-client-java"]
 	path = deps/tugraph-db-client-java
 	url = https://github.com/TuGraph-family/tugraph-db-client-java.git
+[submodule "deps/tugraph-db-management"]
+	path = deps/tugraph-db-management
+	url = https://github.com/TuGraph-family/tugraph-db-management.git

src/BuildLGraphServer.cmake

@@ -25,7 +25,8 @@ endif ()
 include(cmake/GenerateProtobuf.cmake)
 GenerateProtobufCpp(${CMAKE_CURRENT_LIST_DIR}/protobuf
         PROTO_SRCS PROTO_HEADERS
-        ${CMAKE_CURRENT_LIST_DIR}/protobuf/ha.proto)
+        ${CMAKE_CURRENT_LIST_DIR}/protobuf/ha.proto
+        ${CMAKE_CURRENT_LIST_DIR}/protobuf/tugraph_db_management.proto)
 
 include_directories(${DEPS_INCLUDE_DIR})
 
@@ -44,14 +45,16 @@ add_library(${TARGET_SERVER_LIB} STATIC
         server/lgraph_server.cpp
         server/state_machine.cpp
         server/ha_state_machine.cpp
+        server/db_management_client.cpp
         import/import_online.cpp
         import/import_v2.cpp
         import/import_v3.cpp
         restful/server/rest_server.cpp
         restful/server/stdafx.cpp
         http/http_server.cpp
         http/import_manager.cpp
-        http/import_task.cpp)
+        http/import_task.cpp
+        ${PROTO_SRCS})
 
 target_compile_options(${TARGET_SERVER_LIB} PUBLIC
         -DGFLAGS_NS=${GFLAGS_NS}

src/protobuf/tugraph_db_management.proto

@@ -0,0 +1,137 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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";
+package com.antgroup.tugraph;
+
+option cc_generic_services = true;
+option java_outer_classname = "TuGraphDBManagement";
+
+enum ResponseCode {
+      SUCCESS = 0;
+      FAILED = 1;
+}
+
+message Job {
+      required string db_id = 1;
+      required int32 job_id = 2;
+      required int64 start_time = 3;
+      required string period = 4;
+      required string procedure_name = 5;
+      required string procedure_type = 6;
+      required string status = 7;
+      required int64 runtime = 8;
+      required string user = 9;
+      required int64 create_time = 10;
+}
+
+message JobResult {
+      required int32 job_id = 1;
+      required string result = 2;
+}
+
+message CreateJobRequest {
+      required int64 start_time = 1;
+      required string period = 2;
+      required string procedure_name = 3;
+      required string procedure_type = 4;
+      required string user = 5;
+      required int64 create_time = 6;
+}
+
+message CreateJobResponse {
+      required int32 job_id = 1;
+      required ResponseCode response_code = 2;
+}
+
+message ReadJobRequest {
+      optional int32 job_id = 1;
+}
+
+message ReadJobResponse {
+      repeated Job job = 2;
+      required ResponseCode response_code = 1;
+}
+
+message ReadJobResultRequest {
+      required int32 job_id = 1;
+}
+
+message ReadJobResultResponse {
+      required JobResult job_result = 1;
+      required ResponseCode response_code = 2;
+}
+
+message UpdateJobRequest {
+      required int32 job_id = 1;
+      required string status = 2;
+      optional int64 runtime = 3;
+      optional string result = 4;
+}
+
+message UpdateJobResponse {
+      required ResponseCode response_code = 1;
+}
+
+message DeleteJobRequest {
+      required int32 job_id = 1;
+}
+
+message DeleteJobResponse {
+      required ResponseCode response_code = 1;
+}
+
+message JobManagementRequest {
+      required string db_host = 1;
+      required string db_port = 2;
+      oneof Req {
+            CreateJobRequest create_job_request = 3;
+            ReadJobRequest read_job_request = 4;
+            ReadJobResultRequest read_job_result_request = 5;
+            UpdateJobRequest update_job_request = 6;
+            DeleteJobRequest delete_job_request = 7;
+      };
+};
+
+message JobManagementResponse {
+      required ResponseCode response_code = 1;
+      oneof Resp {
+            CreateJobResponse create_job_response = 2;
+            ReadJobResponse read_job_response = 3;
+            ReadJobResultResponse read_job_result_response = 4;
+            UpdateJobResponse update_job_response = 5;
+            DeleteJobResponse delete_job_response = 6;
+      };
+};
+
+message HeartbeatRequest {
+      required string request_msg = 1;
+      required int32 heartbeat_count = 2;
+};
+
+message HeartbeatResponse {
+      required string response_msg = 1;
+      required int32 heartbeat_count = 2;
+};
+
+service JobManagementService {
+      rpc handleRequest(JobManagementRequest) returns (JobManagementResponse);
+};
+
+service HeartbeatService {
+      rpc detectHeartbeat(HeartbeatRequest) returns (HeartbeatResponse);
+}