add slog

.github/workflows/ci.yml

@@ -9,6 +9,8 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
 
     - name: Set up Rust
       uses: actions-rs/toolchain@v1
@@ -26,6 +28,9 @@ jobs:
 
     - name: Check Linting
       run: cargo clippy -- -D warnings
+
+    - name: Unit test
+      run: cargo test
 
     - name: Build project
       run: cargo build

Cargo.toml

@@ -19,6 +19,9 @@ bincode = "1.3.1"
 serde = { version = "1.0", features = ["derive"] }
 hex = "0.4"
 sha2 = "0.10.8"
+slog = "2.7.0"
+slog-term = "2.9.1"
+chrono = "0.4"
 
 [[example]]
 name = "simple_run"

examples/simple_run.rs

@@ -4,6 +4,8 @@
 
 // make this file executable with `chmod +x examples/simple_run.rs`
 
+use raft_rs::log::get_logger;
+use slog::{error, info};
 use std::collections::HashMap;
 use std::thread;
 use tokio::runtime::Runtime;
@@ -60,8 +62,10 @@ async fn main() {
 }
 
 async fn client_request(client_id: u32, data: u32) {
+    let log = get_logger();
+
     let server_address = "127.0.0.1"; // Assuming server 1 is the leader
-    let network_manager = TCPManager::new(server_address.to_string(), 5001);
+    let network_manager = TCPManager::new(server_address.to_string(), 5001, log.clone());
 
     let request_data = vec![
         client_id.to_be_bytes().to_vec(),
@@ -75,12 +79,12 @@ async fn client_request(client_id: u32, data: u32) {
         .send(server_address, "5001", &request_data)
         .await
     {
-        eprintln!("Failed to send client request: {}", e);
+        error!(log, "Failed to send client request: {}", e);
     }
 
     // sleep for a while to allow the server to process the request
     tokio::time::sleep(Duration::from_secs(5)).await;
 
     let response = network_manager.receive().await.unwrap();
-    println!("Received response: {:?}", response);
+    info!(log, "Received response: {:?}", response);
 }

src/lib.rs

@@ -1,3 +1,4 @@
+pub mod log;
 pub mod network;
 pub mod server;
 pub mod storage;

src/log.rs

@@ -0,0 +1,31 @@
+use chrono::prelude::*;
+use slog::{o, Drain, Logger};
+
+pub fn get_logger() -> Logger {
+    let decorator = slog_term::PlainSyncDecorator::new(std::io::stdout());
+    let drain = slog_term::FullFormat::new(decorator)
+        .use_custom_timestamp(|io| write!(io, "{}", Utc::now().format("%Y-%m-%d %H:%M:%S")))
+        .build()
+        .fuse();
+
+    Logger::root(drain, o!())
+}
+
+#[cfg(test)]
+mod tests {
+    use slog::{crit, debug, error, info, trace, warn};
+
+    use crate::log::get_logger;
+
+    #[tokio::test]
+    async fn test_slog() {
+        let log = get_logger();
+
+        trace!(log, "trace log message");
+        debug!(log, "debug log message");
+        info!(log, "info log message");
+        warn!(log, "warn log message");
+        error!(log, "error log message");
+        crit!(log, "crit log message");
+    }
+}

src/network.rs

@@ -5,6 +5,7 @@
 use crate::parse_ip_address;
 use async_trait::async_trait;
 use futures::future::join_all;
+use slog::info;
 use std::error::Error;
 use std::net::SocketAddr;
 use std::sync::Arc;
@@ -36,15 +37,17 @@ pub struct TCPManager {
     port: u16,
     listener: Arc<Mutex<Option<TcpListener>>>,
     is_open: Arc<Mutex<bool>>,
+    log: slog::Logger,
 }
 
 impl TCPManager {
-    pub fn new(address: String, port: u16) -> Self {
+    pub fn new(address: String, port: u16, log: slog::Logger) -> Self {
         TCPManager {
             address,
             port,
             listener: Arc::new(Mutex::new(None)),
             is_open: Arc::new(Mutex::new(false)),
+            log,
         }
     }
 
@@ -114,7 +117,7 @@ impl NetworkLayer for TCPManager {
         let listener = TcpListener::bind(addr).await?;
         *self.listener.lock().await = Some(listener);
         *is_open = true;
-        println!("Listening on {}", addr);
+        info!(self.log, "Listening on {}", addr);
         Ok(())
     }
 
@@ -125,18 +128,27 @@ impl NetworkLayer for TCPManager {
         }
         *self.listener.lock().await = None;
         *is_open = false;
-        println!("Listener closed");
+        info!(self.log, "Listener closed");
         Ok(())
     }
 }
 
 #[cfg(test)]
 mod tests {
+    use slog::{o, Drain};
+
     use super::*;
 
+    fn get_logger() -> slog::Logger {
+        let decorator = slog_term::PlainSyncDecorator::new(std::io::stdout());
+        let drain = slog_term::FullFormat::new(decorator).build().fuse();
+        let log = slog::Logger::root(drain, o!());
+        return log;
+    }
+
     #[tokio::test]
     async fn test_send() {
-        let network = TCPManager::new("127.0.0.1".to_string(), 8082);
+        let network = TCPManager::new("127.0.0.1".to_string(), 8082, get_logger());
         let data = vec![1, 2, 3];
         network.open().await.unwrap();
         let network_clone = network.clone();