opendal_core/services/tikv/
writer.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::*;
21use crate::raw::oio;
22use crate::*;
23
24pub struct TikvWriter {
25    core: Arc<TikvCore>,
26    path: String,
27    buffer: oio::QueueBuf,
28}
29
30impl TikvWriter {
31    pub fn new(core: Arc<TikvCore>, path: String) -> Self {
32        Self {
33            core,
34            path,
35            buffer: oio::QueueBuf::new(),
36        }
37    }
38}
39
40impl oio::Write for TikvWriter {
41    async fn write(&mut self, bs: Buffer) -> Result<()> {
42        self.buffer.push(bs);
43        Ok(())
44    }
45
46    async fn close(&mut self) -> Result<Metadata> {
47        let buf = self.buffer.clone().collect();
48        let length = buf.len() as u64;
49        self.core.set(&self.path, buf).await?;
50
51        let meta = Metadata::new(EntryMode::from_path(&self.path)).with_content_length(length);
52        Ok(meta)
53    }
54
55    async fn abort(&mut self) -> Result<()> {
56        self.buffer.clear();
57        Ok(())
58    }
59}
opendal_core/services/tikv/writer.rs

opendal_core/services/tikv/
writer.rs
