vim server_architektur; first draft of pseudo rust.
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// main author: Robin Willmann
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// date : see git.
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// WIP, changes welcome
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mod model {
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pub struct Sha256(pub [64;u8]);
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pub struct Texture {
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pub id : String,
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pub name : String,
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pub tags : Vec<String>,
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pub format : TextureFormat,
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pub resolution : (usize, usize),
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pub texture_hash : Sha256
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}
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pub enum TextureFormat {
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PNG,
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JPG
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}
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}
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mod protocol {
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use crate::model::*;
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pub enum ReplaceTextureStatus {
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// Call Again With Texture Binary
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NeedTextureData,
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// Done.
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Ok,
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}
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pub type ProtocolResult<T> = Result<T, NetworkError>;
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pub enum ProtocolError {
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BadRequest(pub String),
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FileNotFound(pub String),
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Conflict(pub String),
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InternalServerError(pub std::io::Error),
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NotImplemented,
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}
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pub trait ProtocolHandler : Send + Sync {
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fn query(mut self, &[String]) ->
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ProtocolError<Vec<Texture>>;
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fn get_texture_by_id(mut self, id : String) ->
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ProtocolError<Option<Texture>>;
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fn get_texture_by_name(mut self, id : String) ->
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ProtocolError<Option<Texture>>;
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fn get_texture_file(mut self, hash : Sha256) ->
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ProtocolError<Vec<u8>>;
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fn get_texture_preview(mut self, hash : Sha256) ->
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ProtocolError<Vec<u8>>;
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fn replace_texture(mut self,
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delete : Option<Texture>,
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insert : Option<Texture>,
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insert_texture_data : Option<Vec<u8>>
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) -> ProtocolError<ReplaceTextureStatus>;
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}
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pub struct ProtocolConfig {
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pub port : u16,
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}
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pub fn listen_forever(handler : &ProtocolHandler) -> {
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unimplemend!()
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}
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}
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mod persistency {
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use std::io;
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pub struct DataStore {
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// private attributes
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}
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impl DataStore {
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pub fn new(path : Path) -> io::Result<DataStore> {
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unimplemend!()
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}
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pub fn garbage_collect() -> io::Result<()> {
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unimplemend!()
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}
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// TODO: think
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}
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mod search {
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use crate::model::*;
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pub struct Query {
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filters : Vec<QueryFilterModifier>,
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}
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pub type QueryParserResult<T> = Result<Query, QuerySyntaxError>;
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pub enum QuerySyntaxError {
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UnknownFilter,
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}
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impl Query {
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pub fn parse(input : &[String]) -> QueryParserResult{
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unimplemend!()
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}
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}
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pub fn search(input : &[Texture], query : &Query) -> Vec<Texture> {
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}
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//private
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enum QueryFilterModifier{
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None(QueryFilter),
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Not(QueryFilter),
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}
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//private
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enum QueryFilter {
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TagName(String),
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InName(String),
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MinResolution(usize),
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BeforeDate {
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year : u16,
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month : u16,
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day : u16,
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}
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}
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}
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}
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mod image_convert {
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use crate::model::*;
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pub struct ConvertConfig {
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pub desired_size : (usize, usize),
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}
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pub generate_preview(
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input : Vec<u8>,
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format : Format
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config : ConvertConfig,
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) -> ::image::ImageResult<Vec<u8>>;
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}
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mod main {
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struct ServerState {
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// private attributes
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}
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impl ProtocolHandler for ServerState {
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// ....
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}
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pub fn main(){
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unimplemend!()
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}
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}
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