rocketmq_protocol/protocol/header/
empty_header.rs

1// Copyright 2026 The RocketMQ Rust Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::collections::HashMap;
16
17use cheetah_string::CheetahString;
18use serde::Deserialize;
19use serde::Serialize;
20
21use crate::protocol::command_custom_header::CommandCustomHeader;
22#[derive(Debug, Default, Clone, PartialEq, Eq, Serialize, Deserialize)]
23pub struct EmptyHeader {}
24
25impl CommandCustomHeader for EmptyHeader {
26    fn to_map(&self) -> Option<HashMap<CheetahString, CheetahString>> {
27        Some(HashMap::new())
28    }
29}
30
31#[cfg(test)]
32mod tests {
33    use super::*;
34    use serde_json;
35
36    #[test]
37    fn test_empty_header_lifecycle() {
38        let header = EmptyHeader::default();
39
40        let json = serde_json::to_string(&header).unwrap();
41        assert_eq!(json, "{}");
42        let de: EmptyHeader = serde_json::from_str(&json).unwrap();
43        assert_eq!(header, de);
44        assert_eq!(header.to_map(), Some(HashMap::new()));
45    }
46}
rocketmq_protocol/protocol/header/empty_header.rs

rocketmq_protocol/protocol/header/
empty_header.rs
