opendal/services/alluxio/
lister.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with 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,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::sync::Arc;
19
20use super::core::AlluxioCore;
21use crate::raw::oio::Entry;
22use crate::raw::*;
23use crate::ErrorKind;
24use crate::Result;
25
26pub struct AlluxioLister {
27    core: Arc<AlluxioCore>,
28
29    path: String,
30}
31
32impl AlluxioLister {
33    pub(super) fn new(core: Arc<AlluxioCore>, path: &str) -> Self {
34        AlluxioLister {
35            core,
36            path: path.to_string(),
37        }
38    }
39}
40
41impl oio::PageList for AlluxioLister {
42    async fn next_page(&self, ctx: &mut oio::PageContext) -> Result<()> {
43        let result = self.core.list_status(&self.path).await;
44
45        match result {
46            Ok(file_infos) => {
47                ctx.done = true;
48
49                for file_info in file_infos {
50                    let path: String = file_info.path.clone();
51                    let path = if file_info.folder {
52                        format!("{}/", path)
53                    } else {
54                        path
55                    };
56                    ctx.entries.push_back(Entry::new(
57                        &build_rel_path(&self.core.root, &path),
58                        file_info.try_into()?,
59                    ));
60                }
61
62                Ok(())
63            }
64            Err(e) => {
65                if e.kind() == ErrorKind::NotFound {
66                    ctx.done = true;
67                    return Ok(());
68                }
69                Err(e)
70            }
71        }
72    }
73}
opendal/services/alluxio/lister.rs

opendal/services/alluxio/
lister.rs
