sl4f_lib/file/
types.rs

1// Copyright 2019 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4use serde::{Deserialize, Serialize};
5
6/// Enum for supported file related commands.
7pub enum FileMethod {
8    DeleteFile,
9    MakeDir,
10    ReadFile,
11    WriteFile,
12    Stat,
13}
14
15impl std::str::FromStr for FileMethod {
16    type Err = anyhow::Error;
17
18    fn from_str(method: &str) -> Result<Self, Self::Err> {
19        match method {
20            "DeleteFile" => Ok(FileMethod::DeleteFile),
21            "MakeDir" => Ok(FileMethod::MakeDir),
22            "ReadFile" => Ok(FileMethod::ReadFile),
23            "WriteFile" => Ok(FileMethod::WriteFile),
24            "Stat" => Ok(FileMethod::Stat),
25            _ => return Err(format_err!("Invalid File Facade method: {}", method)),
26        }
27    }
28}
29
30#[derive(Serialize, Deserialize, Debug)]
31pub enum DeleteFileResult {
32    NotFound,
33    Success,
34}
35
36#[derive(Serialize, Deserialize, Debug)]
37pub enum MakeDirResult {
38    AlreadyExists,
39    Success,
40}
41
42#[derive(Serialize, Deserialize, Debug)]
43pub enum WriteFileResult {
44    Success,
45}
46
47#[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
48pub enum StatResult {
49    NotFound,
50    Success(Metadata),
51}
52
53#[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
54pub struct Metadata {
55    pub kind: NodeKind,
56    pub size: u64,
57}
58
59#[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
60#[serde(rename_all = "snake_case")]
61pub enum NodeKind {
62    Directory,
63    File,
64    Other,
65}
66
67#[cfg(test)]
68mod tests {
69    use super::*;
70    use serde_json::{json, to_value};
71
72    #[test]
73    fn serialize_stat_result_not_found() {
74        assert_eq!(to_value(StatResult::NotFound).unwrap(), json!("NotFound"));
75    }
76
77    #[test]
78    fn serialize_stat_result_success() {
79        assert_eq!(
80            to_value(StatResult::Success(Metadata { kind: NodeKind::File, size: 42 })).unwrap(),
81            json!({
82                "Success": {
83                    "kind": "file",
84                    "size": 42,
85                },
86            })
87        );
88    }
89}
sl4f_lib/file/types.rs

sl4f_lib/file/
types.rs
