risingwave_connector/source/nexmark/
split.rs

1// Copyright 2025 RisingWave Labs
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 risingwave_common::types::JsonbVal;
16use serde::{Deserialize, Serialize};
17
18use crate::error::ConnectorResult;
19use crate::source::{SplitId, SplitMetaData};
20
21#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Hash)]
22pub struct NexmarkSplit {
23    pub(crate) split_index: i32,
24    pub(crate) split_num: i32,
25    pub(crate) start_offset: Option<u64>,
26}
27
28impl SplitMetaData for NexmarkSplit {
29    fn id(&self) -> SplitId {
30        // TODO: should avoid constructing a string every time
31        format!("{}-{}", self.split_num, self.split_index).into()
32    }
33
34    fn restore_from_json(value: JsonbVal) -> ConnectorResult<Self> {
35        serde_json::from_value(value.take()).map_err(Into::into)
36    }
37
38    fn encode_to_json(&self) -> JsonbVal {
39        serde_json::to_value(self.clone()).unwrap().into()
40    }
41
42    fn update_offset(&mut self, last_seen_offset: String) -> ConnectorResult<()> {
43        self.start_offset = Some(last_seen_offset.as_str().parse::<u64>().unwrap());
44        Ok(())
45    }
46}
47
48impl NexmarkSplit {
49    pub fn new(split_index: i32, split_num: i32, start_offset: Option<u64>) -> NexmarkSplit {
50        NexmarkSplit {
51            split_index,
52            split_num,
53            start_offset,
54        }
55    }
56}
risingwave_connector/source/nexmark/split.rs

risingwave_connector/source/nexmark/
split.rs
