risingwave_stream/from_proto/
changelog.rs

1// Copyright 2024 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_pb::stream_plan::ChangeLogNode;
16use risingwave_storage::StateStore;
17
18use super::ExecutorBuilder;
19use crate::error::StreamResult;
20use crate::executor::{ChangeLogExecutor, Executor};
21use crate::task::ExecutorParams;
22
23pub struct ChangeLogExecutorBuilder;
24
25impl_stream_node_body!(Changelog(ChangeLogNode) => ChangeLogExecutorBuilder);
26
27impl ExecutorBuilder for ChangeLogExecutorBuilder {
28    type Node = ChangeLogNode;
29
30    async fn new_boxed_executor(
31        params: ExecutorParams,
32        node: &Self::Node,
33        _store: impl StateStore,
34    ) -> StreamResult<Executor> {
35        let [input]: [_; 1] = params.input.try_into().unwrap();
36
37        let vnodes = params
38            .vnode_bitmap
39            .expect("vnodes not set for changelog executor");
40        let vnode_count = params.actor_context.vnode_count;
41        let distribution_keys = node
42            .distribution_keys
43            .iter()
44            .map(|k| *k as usize)
45            .collect::<Vec<_>>();
46        let exec = ChangeLogExecutor::new(
47            params.actor_context,
48            input,
49            node.need_op,
50            vnode_count,
51            vnodes,
52            distribution_keys,
53        );
54        Ok((params.info, exec).into())
55    }
56}
risingwave_stream/from_proto/changelog.rs

risingwave_stream/from_proto/
changelog.rs
