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::core::FILE;
24use super::core::X_MS_VERSION_ID;
25use super::error::parse_error;
26use crate::raw::*;
27use crate::*;
28
29pub type AzdlsWriters = TwoWays<oio::OneShotWriter<AzdlsWriter>, oio::AppendWriter<AzdlsWriter>>;
30
31pub struct AzdlsWriter {
32    core: Arc<AzdlsCore>,
33
34    op: OpWrite,
35    path: String,
36}
37
38impl AzdlsWriter {
39    pub fn new(core: Arc<AzdlsCore>, op: OpWrite, path: String) -> Self {
40        AzdlsWriter { core, op, path }
41    }
42
43    fn parse_metadata(headers: &http::HeaderMap) -> Result<Metadata> {
44        let mut metadata = Metadata::default();
45
46        if let Some(last_modified) = parse_last_modified(headers)? {
47            metadata.set_last_modified(last_modified);
48        }
49        let etag = parse_etag(headers)?;
50        if let Some(etag) = etag {
51            metadata.set_etag(etag);
52        }
53        let version_id = parse_header_to_str(headers, X_MS_VERSION_ID)?;
54        if let Some(version_id) = version_id {
55            metadata.set_version(version_id);
56        }
57
58        Ok(metadata)
59    }
60}
61
62impl oio::OneShotWrite for AzdlsWriter {
63    async fn write_once(&self, bs: Buffer) -> Result<Metadata> {
64        let resp = self.core.azdls_create(&self.path, FILE, &self.op).await?;
65
66        let status = resp.status();
67        match status {
68            StatusCode::CREATED | StatusCode::OK => {}
69            _ => {
70                return Err(parse_error(resp).with_operation("Backend::azdls_create_request"));
71            }
72        }
73
74        let resp = self
75            .core
76            .azdls_update(&self.path, Some(bs.len() as u64), 0, bs)
77            .await?;
78
79        let status = resp.status();
80        match status {
81            StatusCode::OK | StatusCode::ACCEPTED => Ok(Metadata::default()),
82            _ => Err(parse_error(resp).with_operation("Backend::azdls_update_request")),
83        }
84    }
85}
86
87impl oio::AppendWrite for AzdlsWriter {
88    async fn offset(&self) -> Result<u64> {
89        let resp = self.core.azdls_get_properties(&self.path).await?;
90
91        let status = resp.status();
92        let headers = resp.headers();
93
94        match status {
95            StatusCode::OK => Ok(parse_content_length(headers)?.unwrap_or_default()),
96            StatusCode::NOT_FOUND => Ok(0),
97            _ => Err(parse_error(resp)),
98        }
99    }
100
101    async fn append(&self, offset: u64, size: u64, body: Buffer) -> Result<Metadata> {
102        if offset == 0 {
103            let resp = self.core.azdls_create(&self.path, FILE, &self.op).await?;
104            let status = resp.status();
105            match status {
106                StatusCode::CREATED | StatusCode::OK => {}
107                _ => {
108                    return Err(parse_error(resp).with_operation("Backend::azdls_create_request"));
109                }
110            }
111        }
112
113        let resp = self
114            .core
115            .azdls_update(&self.path, Some(size), offset, body)
116            .await?;
117
118        let mut meta = AzdlsWriter::parse_metadata(resp.headers())?;
119        let md5 = parse_content_md5(resp.headers())?;
120        if let Some(md5) = md5 {
121            meta.set_content_md5(md5);
122        }
123        let status = resp.status();
124        match status {
125            StatusCode::OK | StatusCode::ACCEPTED => Ok(meta),
126            _ => Err(parse_error(resp).with_operation("Backend::azdls_update_request")),
127        }
128    }
129}
opendal/services/azdls/writer.rs

opendal/services/azdls/
writer.rs
