opendal/services/azdls/
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 http::StatusCode;
21
22use super::core::AzdlsCore;
23use super::error::parse_error;
24use crate::raw::*;
25use crate::*;
26
27pub type AzdlsWriters = TwoWays<oio::OneShotWriter<AzdlsWriter>, oio::AppendWriter<AzdlsWriter>>;
28
29pub struct AzdlsWriter {
30    core: Arc<AzdlsCore>,
31
32    op: OpWrite,
33    path: String,
34}
35
36impl AzdlsWriter {
37    pub fn new(core: Arc<AzdlsCore>, op: OpWrite, path: String) -> Self {
38        AzdlsWriter { core, op, path }
39    }
40}
41
42impl oio::OneShotWrite for AzdlsWriter {
43    async fn write_once(&self, bs: Buffer) -> Result<Metadata> {
44        let mut req =
45            self.core
46                .azdls_create_request(&self.path, "file", &self.op, Buffer::new())?;
47
48        self.core.sign(&mut req).await?;
49
50        let resp = self.core.send(req).await?;
51
52        let status = resp.status();
53        match status {
54            StatusCode::CREATED | StatusCode::OK => {}
55            _ => {
56                return Err(parse_error(resp).with_operation("Backend::azdls_create_request"));
57            }
58        }
59
60        let mut req = self
61            .core
62            .azdls_update_request(&self.path, Some(bs.len() as u64), 0, bs)?;
63
64        self.core.sign(&mut req).await?;
65
66        let resp = self.core.send(req).await?;
67
68        let status = resp.status();
69        match status {
70            StatusCode::OK | StatusCode::ACCEPTED => Ok(Metadata::default()),
71            _ => Err(parse_error(resp).with_operation("Backend::azdls_update_request")),
72        }
73    }
74}
75
76impl oio::AppendWrite for AzdlsWriter {
77    async fn offset(&self) -> Result<u64> {
78        let resp = self.core.azdls_get_properties(&self.path).await?;
79
80        let status = resp.status();
81        let headers = resp.headers();
82
83        match status {
84            StatusCode::OK => Ok(parse_content_length(headers)?.unwrap_or_default()),
85            StatusCode::NOT_FOUND => Ok(0),
86            _ => Err(parse_error(resp)),
87        }
88    }
89
90    async fn append(&self, offset: u64, size: u64, body: Buffer) -> Result<Metadata> {
91        if offset == 0 {
92            let mut req =
93                self.core
94                    .azdls_create_request(&self.path, "file", &self.op, Buffer::new())?;
95
96            self.core.sign(&mut req).await?;
97
98            let resp = self.core.send(req).await?;
99
100            let status = resp.status();
101            match status {
102                StatusCode::CREATED | StatusCode::OK => {}
103                _ => {
104                    return Err(parse_error(resp).with_operation("Backend::azdls_create_request"));
105                }
106            }
107        }
108
109        let mut req = self
110            .core
111            .azdls_update_request(&self.path, Some(size), offset, body)?;
112
113        self.core.sign(&mut req).await?;
114
115        let resp = self.core.send(req).await?;
116
117        let status = resp.status();
118        match status {
119            StatusCode::OK | StatusCode::ACCEPTED => Ok(Metadata::default()),
120            _ => Err(parse_error(resp).with_operation("Backend::azdls_update_request")),
121        }
122    }
123}
opendal/services/azdls/writer.rs

opendal/services/azdls/
writer.rs
