add interface GetConfig()/SetConfig() (#877)

* #665 add interface GetConfig()/SetConfig()

* #665 remove test code

sdk/grpc/ClientProxy.cpp

@@ -456,4 +456,24 @@ ClientProxy::DropPartition(const PartitionParam& partition_param) {
     }
 }
 
+Status
+ClientProxy::GetConfig(const std::string& node_name, std::string& value) const {
+    try {
+        return client_ptr_->Cmd(value, "get_config " + node_name);
+    } catch (std::exception& ex) {
+        return Status(StatusCode::UnknownError, "Fail to get config: " + node_name);
+    }
+}
+
+Status
+ClientProxy::SetConfig(const std::string& node_name, const std::string& value) const {
+    try {
+        std::string dummy;
+        return client_ptr_->Cmd(dummy, "set_config " + node_name + " " + value);
+    } catch (std::exception& ex) {
+        return Status(StatusCode::UnknownError, "Fail to set config: " + node_name);
+    }
+}
+
+
 }  // namespace milvus

sdk/grpc/ClientProxy.h

@@ -104,10 +104,14 @@ class ClientProxy : public Connection {
     Status
     DropPartition(const PartitionParam& partition_param) override;
 
- private:
-    std::shared_ptr<::grpc::Channel> channel_;
+    Status
+    GetConfig(const std::string& node_name, std::string& value) const override;
+
+    Status
+    SetConfig(const std::string& node_name, const std::string& value) const override;
 
  private:
+    std::shared_ptr<::grpc::Channel> channel_;
     std::shared_ptr<GrpcClient> client_ptr_;
     bool connected_ = false;
 };

sdk/include/MilvusApi.h

@@ -444,6 +444,32 @@ class Connection {
      */
     virtual Status
     DropPartition(const PartitionParam& param) = 0;
+
+    /**
+     * @brief Get config method
+     *
+     * This method is used to set config.
+     *
+     * @param node_name, config node name.
+     * @param value, config value.
+     *
+     * @return Indicate if this operation is successful.
+     */
+    virtual Status
+    GetConfig(const std::string& node_name, std::string& value) const = 0;
+
+    /**
+     * @brief Set config method
+     *
+     * This method is used to set config.
+     *
+     * @param node_name, config node name.
+     * @param value, config value.
+     *
+     * @return Indicate if this operation is successful.
+     */
+    virtual Status
+    SetConfig(const std::string& node_name, const std::string& value) const = 0;
 };
 
 }  // namespace milvus

sdk/interface/ConnectionImpl.cpp

@@ -161,4 +161,13 @@ ConnectionImpl::DropPartition(const PartitionParam& param) {
     return client_proxy_->DropPartition(param);
 }
 
+Status
+ConnectionImpl::GetConfig(const std::string& node_name, std::string& value) const {
+    return client_proxy_->GetConfig(node_name, value);
+}
+
+Status
+ConnectionImpl::SetConfig(const std::string& node_name, const std::string& value) const {
+    return client_proxy_->SetConfig(node_name, value);
+}
 }  // namespace milvus

sdk/interface/ConnectionImpl.h

@@ -106,7 +106,13 @@ class ConnectionImpl : public Connection {
     Status
     DropPartition(const PartitionParam& param) override;
 
- private:
+    Status
+    GetConfig(const std::string& node_name, std::string& value) const override;
+
+    Status
+    SetConfig(const std::string& node_name, const std::string& value) const override;
+
+private:
     std::shared_ptr<ClientProxy> client_proxy_;
 };