risingwave_object_store/object/opendal_engine/
webhdfs.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 std::sync::Arc;
16
17use opendal::Operator;
18use opendal::layers::LoggingLayer;
19use opendal::services::Webhdfs;
20use risingwave_common::config::ObjectStoreConfig;
21
22use super::{MediaType, OpendalObjectStore};
23use crate::object::ObjectResult;
24use crate::object::object_metrics::ObjectStoreMetrics;
25use crate::object::opendal_engine::ATOMIC_WRITE_DIR;
26
27impl OpendalObjectStore {
28    /// create opendal webhdfs engine.
29    pub fn new_webhdfs_engine(
30        endpoint: String,
31        root: String,
32        config: Arc<ObjectStoreConfig>,
33        metrics: Arc<ObjectStoreMetrics>,
34    ) -> ObjectResult<Self> {
35        // Create webhdfs backend builder.
36        let mut builder = Webhdfs::default();
37        // Set the name node for webhdfs.
38        builder = builder.endpoint(&endpoint);
39        // Set the root for hdfs, all operations will happen under this root.
40        // NOTE: the root must be absolute path.
41        builder = builder.root(&root);
42
43        let atomic_write_dir = format!("{}/{}", root, ATOMIC_WRITE_DIR);
44        builder = builder.atomic_write_dir(&atomic_write_dir);
45        let op: Operator = Operator::new(builder)?
46            .layer(LoggingLayer::default())
47            .finish();
48        Ok(Self {
49            op,
50            media_type: MediaType::Webhdfs,
51            config,
52            metrics,
53        })
54    }
55}
risingwave_object_store/object/opendal_engine/webhdfs.rs

risingwave_object_store/object/opendal_engine/
webhdfs.rs
