rocketmq-protocol 1.0.0

// 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::RequestHeaderCodec;
use serde::Deserialize;
use serde::Serialize;

use crate::protocol::header::message_operation_header::TopicRequestHeaderTrait;
use crate::rpc::topic_request_header::TopicRequestHeader;

const fn default_committed() -> bool {
    true
}

#[derive(Debug, Clone, Serialize, Deserialize, RequestHeaderCodec)]
#[header(
    type_id = "rocketmq_protocol::protocol::header::get_max_offset_request_header::GetMaxOffsetRequestHeader",
    java_class = "org.apache.rocketmq.remoting.protocol.header.GetMaxOffsetRequestHeader"
)]
#[serde(rename_all = "camelCase")]
pub struct GetMaxOffsetRequestHeader {
    #[header(required)]
    pub topic: CheetahString,

    #[header(required)]
    pub queue_id: i32,

    #[serde(default = "default_committed")]
    #[header(default_with = "default_committed", default_semantic = "literal:true")]
    pub committed: bool,

    #[serde(flatten)]
    #[header(flatten, presence = "always")]
    pub topic_request_header: Option<TopicRequestHeader>,
}

impl TopicRequestHeaderTrait for GetMaxOffsetRequestHeader {
    fn set_lo(&mut self, lo: Option<bool>) {
        if let Some(header) = self.topic_request_header.as_mut() {
            header.lo = lo;
        }
    }

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

    fn set_broker_name(&mut self, broker_name: CheetahString) {
        if let Some(header) = self.topic_request_header.as_mut() {
            if let Some(rpc_header) = header.rpc_request_header.as_mut() {
                rpc_header.broker_name = Some(broker_name);
            }
        }
    }

    fn namespace(&self) -> Option<&str> {
        self.topic_request_header
            .as_ref()
            .and_then(|h| h.rpc_request_header.as_ref())
            .and_then(|r| r.namespace.as_deref())
    }

    fn set_namespace(&mut self, namespace: CheetahString) {
        if let Some(header) = self.topic_request_header.as_mut() {
            if let Some(rpc_header) = header.rpc_request_header.as_mut() {
                rpc_header.namespace = Some(namespace);
            }
        }
    }

    fn namespaced(&self) -> Option<bool> {
        self.topic_request_header
            .as_ref()
            .and_then(|h| h.rpc_request_header.as_ref())
            .and_then(|r| r.namespaced)
    }

    fn set_namespaced(&mut self, namespaced: bool) {
        if let Some(header) = self.topic_request_header.as_mut() {
            if let Some(rpc_header) = header.rpc_request_header.as_mut() {
                rpc_header.namespaced = Some(namespaced);
            }
        }
    }

    fn oneway(&self) -> Option<bool> {
        self.topic_request_header
            .as_ref()
            .and_then(|h| h.rpc_request_header.as_ref())
            .and_then(|r| r.oneway)
    }

    fn set_oneway(&mut self, oneway: bool) {
        if let Some(header) = self.topic_request_header.as_mut() {
            if let Some(rpc_header) = header.rpc_request_header.as_mut() {
                rpc_header.oneway = Some(oneway);
            }
        }
    }

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

    fn set_queue_id(&mut self, queue_id: i32) {
        self.queue_id = queue_id;
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn serde_defaults_committed_to_java_default() {
        let header: GetMaxOffsetRequestHeader = serde_json::from_str(r#"{"topic":"topic-a","queueId":1}"#).unwrap();

        assert!(header.committed);
    }

    #[test]
    fn nested_setters_are_noops_without_an_rpc_envelope() {
        let mut header = GetMaxOffsetRequestHeader {
            topic: CheetahString::from("topic-a"),
            queue_id: 1,
            committed: true,
            topic_request_header: None,
        };

        header.set_lo(Some(true));
        header.set_broker_name(CheetahString::from("broker-a"));
        header.set_namespace(CheetahString::from("namespace-a"));
        header.set_namespaced(true);
        header.set_oneway(true);

        assert_eq!(header.lo(), None);
        assert_eq!(header.broker_name(), None);
        assert_eq!(header.namespace(), None);
        assert_eq!(header.namespaced(), None);
        assert_eq!(header.oneway(), None);
    }
}