dezoomify_rs/
errors.rs

1use std::error::Error;
2
3use reqwest::{self, header};
4use tokio::sync::mpsc::error::SendError;
5use crate::encoder::tile_buffer::TileBufferMsg;
6use custom_error::custom_error;
7
8custom_error! {
9    pub ZoomError
10    Networking{source: reqwest::Error} = "network error: {source}",
11    Dezoomer{source: DezoomerError} = "Dezoomer error: {source}",
12    NoLevels = "A zoomable image was found, but it did not contain any zoom level",
13    NoTile = "Could not get any tile for the image. See https://dezoomify-rs.ophir.dev/no-tile-error",
14    PartialDownload{successful_tiles: u64, total_tiles: u64, destination: String} =
15        "Only {successful_tiles} tiles out of {total_tiles} could be downloaded. \
16        The resulting image was still created in '{destination}'.",
17    Image{source: image::ImageError} = "invalid image error: {source}",
18    PostProcessing{source: Box<dyn Error>} = "unable to process the downloaded tile: {source}",
19    Io{source: std::io::Error} = "Input/Output error: {source}",
20    Yaml{source: serde_yaml::Error} = "Invalid YAML configuration file: {source}",
21    TileCopyError{x:u32, y:u32, twidth:u32, theight:u32, width:u32, height:u32} =
22                                "Unable to copy a {twidth}x{theight} tile \
23                                 at position {x},{y} \
24                                 on a canvas of size {width}x{height}",
25    MalformedTileStr{tile_str: String} = "Malformed tile string: '{tile_str}' \
26                                          expected 'x y url'",
27    NoSuchDezoomer{name: String} = "No such dezoomer: {name}",
28    InvalidHeaderName{source: header::InvalidHeaderName} = "Invalid header name: {source}",
29    InvalidHeaderValue{source: header::InvalidHeaderValue} = "Invalid header value: {source}",
30    AsyncError{source: tokio::task::JoinError} = "Unable get the result from a thread: {source}",
31    BufferToImage{source: BufferToImageError} = "{source}",
32    WriteError{source: SendError<TileBufferMsg>} = "Unable to write tile {source:?}",
33    PngError{source: png::EncodingError} = "PNG encoding error: {source}",
34}
35
36custom_error! {
37    pub BufferToImageError
38    Image{source: image::ImageError} = "invalid image error: {source}",
39    PostProcessing{e: Box<dyn Error + Send>} = "unable to process the downloaded tile: {e}",
40}
41
42custom_error! {pub DezoomerError
43    NeedsData{uri: String}           = "Need to download data from {uri}",
44    WrongDezoomer{name:&'static str} = "The '{name}' dezoomer cannot handle this URI",
45    DownloadError{msg: String} = "Unable to download required data: {msg}",
46    Other{source: Box<dyn Error>}    = "Unable to create the dezoomer: {source}"
47}
48
49impl DezoomerError {
50    pub fn wrap<E: Error + 'static>(err: E) -> DezoomerError {
51        DezoomerError::Other { source: err.into() }
52    }
53}
54
55pub fn image_error_to_io_error(err: image::ImageError) -> std::io::Error {
56    match err {
57        image::ImageError::IoError(e) => e,
58        e => make_io_err(e)
59    }
60}
61
62pub fn make_io_err<E>(e: E) -> std::io::Error
63    where E: Into<Box<dyn std::error::Error + Send + Sync>> {
64    std::io::Error::new(std::io::ErrorKind::Other, e)
65}
dezoomify_rs/errors.rs

dezoomify_rs/
errors.rs
