implements serialize and deserialize for RaftMetrics.

CHANGELOG.md

@@ -4,6 +4,10 @@ This changelog follows the patterns described here: https://keepachangelog.com/e
 
 ## [unreleased]
 
+## 0.5.5
+### changed
+- Added `#[derive(Serialize, Deserialize)]` to `RaftMetrics`, `State`.
+
 ## 0.5.4
 ### fixed
 - Fixed [#82](https://github.com/async-raft/async-raft/issues/82) where client reads were not behaving correctly for single node clusters. Single node integration tests have been updated to ensure this functionality is working as needed.

async-raft/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "async-raft"
-version = "0.5.4"
+version = "0.5.5"
 edition = "2018"
 authors = ["Anthony Dodd <Dodd.AnthonyJosiah@gmail.com>"]
 categories = ["algorithms", "asynchronous", "data-structures"]

async-raft/src/core/mod.rs

@@ -12,6 +12,7 @@ use std::sync::Arc;
 
 use futures::future::{AbortHandle, Abortable};
 use futures::stream::FuturesOrdered;
+use serde::{Deserialize, Serialize};
 use tokio::stream::StreamExt;
 use tokio::sync::{broadcast, mpsc, oneshot, watch};
 use tokio::task::JoinHandle;
@@ -434,7 +435,7 @@ pub(self) enum SnapshotUpdate {
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 /// All possible states of a Raft node.
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub enum State {
     /// The node is completely passive; replicating entries, but neither voting nor timing out.
     NonVoter,

async-raft/src/metrics.rs

@@ -7,12 +7,14 @@
 //! Metrics are observed on a running Raft node via the `Raft::metrics()` method, which will
 //! return a stream of metrics.
 
+use serde::{Deserialize, Serialize};
+
 use crate::core::State;
 use crate::raft::MembershipConfig;
 use crate::NodeId;
 
 /// A set of metrics describing the current state of a Raft node.
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RaftMetrics {
     /// The ID of the Raft node.
     pub id: NodeId,