rocketmq-remoting 0.9.0

// Copyright 2023 The RocketMQ Rust Authors
//
// 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 cheetah_string::CheetahString;
use rocketmq_macros::RequestHeaderCodecV2;
use serde::Deserialize;
use serde::Serialize;

use crate::protocol::header::message_operation_header::TopicRequestHeaderTrait;
use crate::protocol::header::namesrv::topic_operation_header::TopicRequestHeader;
use crate::rpc::rpc_request_header::RpcRequestHeader;

#[derive(Clone, Debug, Serialize, Deserialize, Default, RequestHeaderCodecV2)]
#[serde(rename_all = "camelCase")]
pub struct GetTopicStatsInfoRequestHeader {
    #[required]
    pub topic: CheetahString,

    #[serde(flatten)]
    pub topic_request_header: Option<TopicRequestHeader>,
}

impl TopicRequestHeaderTrait for GetTopicStatsInfoRequestHeader {
    fn set_lo(&mut self, lo: Option<bool>) {
        self.topic_request_header
            .get_or_insert_with(TopicRequestHeader::default)
            .lo = lo;
    }

    fn lo(&self) -> Option<bool> {
        self.topic_request_header.as_ref().and_then(|header| header.lo)
    }

    fn set_topic(&mut self, topic: CheetahString) {
        self.topic = topic;
    }

    fn topic(&self) -> &CheetahString {
        &self.topic
    }

    fn broker_name(&self) -> Option<&CheetahString> {
        self.topic_request_header
            .as_ref()
            .and_then(|header| header.rpc.as_ref())
            .and_then(|rpc| rpc.broker_name.as_ref())
    }

    fn set_broker_name(&mut self, broker_name: CheetahString) {
        self.topic_request_header
            .get_or_insert_with(TopicRequestHeader::default)
            .rpc
            .get_or_insert_with(RpcRequestHeader::default)
            .broker_name = Some(broker_name);
    }

    fn namespace(&self) -> Option<&str> {
        self.topic_request_header
            .as_ref()
            .and_then(|header| header.rpc.as_ref())
            .and_then(|rpc| rpc.namespace.as_deref())
    }

    fn set_namespace(&mut self, namespace: CheetahString) {
        self.topic_request_header
            .get_or_insert_with(TopicRequestHeader::default)
            .rpc
            .get_or_insert_with(RpcRequestHeader::default)
            .namespace = Some(namespace);
    }

    fn namespaced(&self) -> Option<bool> {
        self.topic_request_header
            .as_ref()
            .and_then(|header| header.rpc.as_ref())
            .and_then(|rpc| rpc.namespaced)
    }

    fn set_namespaced(&mut self, namespaced: bool) {
        self.topic_request_header
            .get_or_insert_with(TopicRequestHeader::default)
            .rpc
            .get_or_insert_with(RpcRequestHeader::default)
            .namespaced = Some(namespaced);
    }

    fn oneway(&self) -> Option<bool> {
        self.topic_request_header
            .as_ref()
            .and_then(|header| header.rpc.as_ref())
            .and_then(|rpc| rpc.oneway)
    }

    fn set_oneway(&mut self, oneway: bool) {
        self.topic_request_header
            .get_or_insert_with(TopicRequestHeader::default)
            .rpc
            .get_or_insert_with(RpcRequestHeader::default)
            .oneway = Some(oneway);
    }

    fn queue_id(&self) -> i32 {
        -1
    }

    fn set_queue_id(&mut self, _queue_id: i32) {}
}

#[cfg(test)]
mod tests {
    use cheetah_string::CheetahString;

    use super::*;

    #[test]
    fn get_topic_stats_info_request_header_serializes_correctly() {
        let header = GetTopicStatsInfoRequestHeader {
            topic: CheetahString::from_static_str("test_topic"),
            topic_request_header: None,
        };
        let serialized = serde_json::to_string(&header).unwrap();
        let expected = r#"{"topic":"test_topic"}"#;
        assert_eq!(serialized, expected);
    }

    #[test]
    fn get_topic_stats_info_request_header_deserializes_correctly() {
        let data = r#"{"topic":"test_topic"}"#;
        let header: GetTopicStatsInfoRequestHeader = serde_json::from_str(data).unwrap();
        assert_eq!(header.topic, CheetahString::from_static_str("test_topic"));
        assert!(header.topic_request_header.is_some());
    }

    #[test]
    fn get_topic_stats_info_request_header_handles_missing_optional_fields() {
        let data = r#"{"topic":"test_topic"}"#;
        let header: GetTopicStatsInfoRequestHeader = serde_json::from_str(data).unwrap();
        assert_eq!(header.topic, CheetahString::from_static_str("test_topic"));
        assert!(header.topic_request_header.is_some());
    }

    #[test]
    fn get_topic_stats_info_request_header_handles_invalid_data() {
        let data = r#"{"topic":12345}"#;
        let result: Result<GetTopicStatsInfoRequestHeader, _> = serde_json::from_str(data);
        assert!(result.is_err());
    }
}