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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 std::collections::HashMap;
use cheetah_string::CheetahString;
use crate::consume_queue::consume_queue_ext::CqExtUnit;
/// A trait for filtering messages.
pub trait MessageFilter: Send + Sync {
/// Checks if the message is matched by the consume queue.
///
/// # Arguments
///
/// * `tags_code` - An optional tag code.
/// * `cq_ext_unit` - An optional reference to a `CqExtUnit`.
///
/// # Returns
///
/// * `true` if the message is matched, `false` otherwise.
fn is_matched_by_consume_queue(
&self,
tags_code: Option<i64>,
cq_ext_unit: Option<&CqExtUnit>,
) -> bool;
/// Checks if the message is matched by the commit log.
///
/// # Arguments
///
/// * `msg_buffer` - An optional mutable reference to a message buffer.
/// * `properties` - An optional reference to a map of properties.
///
/// # Returns
///
/// * `true` if the message is matched, `false` otherwise.
fn is_matched_by_commit_log(
&self,
msg_buffer: Option<&[u8]>,
properties: Option<&HashMap<CheetahString, CheetahString>>,
) -> bool;
}