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refactor: make grpc service able to be added dynamically (#3160)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // 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. | ||
|
|
||
| use std::collections::HashMap; | ||
| use std::net::SocketAddr; | ||
| use std::sync::Arc; | ||
|
|
||
| use servers::grpc::builder::GrpcServerBuilder; | ||
| use servers::grpc::{GrpcServer, GrpcServerConfig}; | ||
| use servers::http::HttpServerBuilder; | ||
| use servers::metrics_handler::MetricsHandler; | ||
| use servers::server::{ServerHandler, ServerHandlers}; | ||
| use snafu::ResultExt; | ||
|
|
||
| use crate::config::DatanodeOptions; | ||
| use crate::error::{ParseAddrSnafu, Result}; | ||
| use crate::region_server::RegionServer; | ||
|
|
||
| const DATANODE_GRPC_SERVICE_NAME: &str = "DATANODE_GRPC_SERVICE"; | ||
| const DATANODE_HTTP_SERVICE_NAME: &str = "DATANODE_HTTP_SERVICE"; | ||
|
|
||
| pub struct DatanodeServiceBuilder<'a> { | ||
| opts: &'a DatanodeOptions, | ||
| grpc_server: Option<GrpcServer>, | ||
| enable_http_service: bool, | ||
| } | ||
|
|
||
| impl<'a> DatanodeServiceBuilder<'a> { | ||
| pub fn new(opts: &'a DatanodeOptions) -> Self { | ||
| Self { | ||
| opts, | ||
| grpc_server: None, | ||
| enable_http_service: false, | ||
| } | ||
| } | ||
|
|
||
| pub fn with_grpc_server(self, grpc_server: GrpcServer) -> Self { | ||
| Self { | ||
| grpc_server: Some(grpc_server), | ||
| ..self | ||
| } | ||
| } | ||
|
|
||
| pub fn with_default_grpc_server(mut self, region_server: &RegionServer) -> Self { | ||
| let grpc_server = Self::grpc_server_builder(self.opts, region_server).build(); | ||
| self.grpc_server = Some(grpc_server); | ||
| self | ||
| } | ||
|
|
||
| pub fn enable_http_service(self) -> Self { | ||
| Self { | ||
| enable_http_service: true, | ||
| ..self | ||
| } | ||
| } | ||
|
|
||
| pub fn build(mut self) -> Result<ServerHandlers> { | ||
| let mut services = HashMap::new(); | ||
|
|
||
| if let Some(grpc_server) = self.grpc_server.take() { | ||
| let addr: SocketAddr = self.opts.rpc_addr.parse().context(ParseAddrSnafu { | ||
| addr: &self.opts.rpc_addr, | ||
| })?; | ||
| let handler: ServerHandler = (Box::new(grpc_server), addr); | ||
| services.insert(DATANODE_GRPC_SERVICE_NAME.to_string(), handler); | ||
| } | ||
|
|
||
| if self.enable_http_service { | ||
| let http_server = HttpServerBuilder::new(self.opts.http.clone()) | ||
| .with_metrics_handler(MetricsHandler) | ||
| .with_greptime_config_options(self.opts.to_toml_string()) | ||
| .build(); | ||
| let addr: SocketAddr = self.opts.http.addr.parse().context(ParseAddrSnafu { | ||
| addr: &self.opts.http.addr, | ||
| })?; | ||
| let handler: ServerHandler = (Box::new(http_server), addr); | ||
| services.insert(DATANODE_HTTP_SERVICE_NAME.to_string(), handler); | ||
| } | ||
|
|
||
| Ok(services) | ||
| } | ||
|
|
||
| pub fn grpc_server_builder( | ||
| opts: &DatanodeOptions, | ||
| region_server: &RegionServer, | ||
| ) -> GrpcServerBuilder { | ||
| let config = GrpcServerConfig { | ||
| max_recv_message_size: opts.rpc_max_recv_message_size.as_bytes() as usize, | ||
| max_send_message_size: opts.rpc_max_send_message_size.as_bytes() as usize, | ||
| }; | ||
|
|
||
| GrpcServerBuilder::new(config, region_server.runtime()) | ||
| .flight_handler(Arc::new(region_server.clone())) | ||
| .region_server_handler(Arc::new(region_server.clone())) | ||
| } | ||
| } |
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