rocketmq_common/common/compression/
compressor.rs

1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements.  See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License.  You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17use bytes::Bytes;
18
19pub trait Compressor {
20    /// Compress message by different compressor.
21    ///
22    /// # Arguments
23    ///
24    /// * `src` - Bytes ready to compress.
25    /// * `level` - Compression level used to balance compression rate and time consumption.
26    ///
27    /// # Returns
28    ///
29    /// Compressed byte data or an `std::io::Error`.
30    fn compress(&self, src: &[u8], level: i32) -> rocketmq_error::RocketMQResult<Bytes>;
31
32    /// Decompress message by different compressor.
33    ///
34    /// # Arguments
35    ///
36    /// * `src` - Bytes ready to decompress.
37    ///
38    /// # Returns
39    ///
40    /// Decompressed byte data or an `std::io::Error`.
41    fn decompress(&self, src: &[u8]) -> rocketmq_error::RocketMQResult<Bytes>;
42}