xCommonLib/base/
status.rs

1use std::error::Error;
2use std::fmt::{self, Display, Formatter};
3
4use serde::{Deserialize, Serialize};
5
6use crate::serial::request_message::RequestMessage;
7
8#[derive(Debug, Serialize, Deserialize)]
9pub struct Status {
10    pub err_code: i32,
11    pub err_msg: String,
12    #[serde(skip)]
13    pub(crate) cached_size: protobuf::rt::CachedSize,
14}
15
16impl Status {
17    pub fn new(err_code: i32, err_msg: String) -> Status {
18        Status {
19            err_code,
20            err_msg,
21            cached_size: protobuf::rt::CachedSize::new(),
22        }
23    }
24
25    pub fn error(err_msg: String) -> Status {
26        Status {
27            err_code: 1,
28            err_msg,
29            cached_size: protobuf::rt::CachedSize::new(),
30        }
31    }
32    
33
34    pub fn is_erorr(&self) -> bool {
35        self.err_code != 0
36    }
37
38    pub fn compute_size_with_tag_and_len_return_buffer(&self) -> Vec<u8> {
39        let size = self.compute_size_with_tag_and_len();
40        let mut buffer: Vec<u8> = Vec::with_capacity(size as usize);
41        let mut os = protobuf::CodedOutputStream::vec(&mut buffer);
42        self.serial_with_tag_and_len(&mut os);
43        drop(os);
44        buffer
45    }
46}
47
48impl Display for Status {
49    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
50        write!(f, "err_code:{}, err_msg: {}", self.err_code, self.err_msg)
51    }
52}
53
54impl Error for Status {}
55
56impl Default for Status {
57    fn default() -> Self {
58        Status {
59            err_code: 0,
60            err_msg: String::default(),
61            cached_size: protobuf::rt::CachedSize::new(),
62        }
63    }
64}
65
66impl RequestMessage for Status {
67    fn compute_size(&self) -> u64 {
68        let mut my_size = 0;
69        my_size += protobuf::rt::int32_size(1, self.err_code);
70
71        my_size += protobuf::rt::string_size(2, &self.err_msg);
72
73        self.cached_size.set(my_size as u32);
74        my_size
75    }
76
77    fn serial_with_output_stream(
78        &self,
79        os: &mut protobuf::CodedOutputStream<'_>,
80    ) -> Result<(), Status> {
81        os.write_int32(1, self.err_code).unwrap();
82
83        os.write_string(2, &self.err_msg).unwrap();
84
85        Ok(())
86    }
87
88    fn parse_from_input_stream(
89        &mut self,
90        is: &mut protobuf::CodedInputStream<'_>,
91    ) -> Result<(), Status> {
92        while let Some(tag) = is.read_raw_tag_or_eof().unwrap() {
93            match tag {
94                8 => {
95                    self.err_code = is.read_int32().unwrap();
96                }
97                18 => {
98                    self.err_msg = is.read_string().unwrap();
99                }
100                _ => {}
101            }
102        }
103        Ok(())
104    }
105}