create skeleton for server from design
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@ -1,245 +0,0 @@
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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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extern crate image;
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pub mod model {
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pub struct Sha256(pub [u8; 64]);
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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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pub mod protocol {
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use crate::model::*;
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use std::io;
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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, ProtocolError>;
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pub enum ProtocolError {
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BadRequest(String),
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FileNotFound(String),
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Conflict(String),
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InternalServerError(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, query: &[String]) -> ProtocolResult<Vec<Texture>>;
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fn get_texture_by_id(&mut self, id: String) -> ProtocolResult<Option<Texture>>;
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fn get_texture_by_name(&mut self, id: String) -> ProtocolResult<Option<Texture>>;
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fn get_texture_file(&mut self, hash: Sha256) -> ProtocolResult<Vec<u8>>;
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fn get_texture_preview(&mut self, hash: Sha256) -> ProtocolResult<Vec<u8>>;
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fn replace_texture(
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&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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) -> ProtocolResult<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) -> io::Result<()> {
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unimplemented!()
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}
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}
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pub mod persistency {
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use crate::model::*;
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use std::collections::HashMap;
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use std::io;
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use std::path::{Path, PathBuf};
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use std::sync::Arc;
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pub type TextureFileResult = Result< Arc<Vec<u8>> , TextureFileError>
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pub enum TextureFileError {
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NotFound,
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IOError(io::Error),
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ImgError(::image::Error),
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}
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pub struct DataStore {
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// private attributes
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// may change
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data_dir: PathBuf,
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texture: Vec<Texture>,
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preview_cache: HashMap<(TextureFormat, Sha256), Arc<Vec<u8>>>,
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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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unimplemented!()
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}
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pub fn garbage_collect(&mut self) -> io::Result<()> {
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unimplemented!()
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}
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pub fn query(&mut self, query: &self::search::Query) -> Vec<Texture> {
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unimplemented!();
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// calls self::search::search(... )
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}
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/// returns true if successful
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pub fn delete(&mut self, tex: &Texture) -> bool {
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unimplemented!();
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}
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pub fn insert(&mut self, tex: Texture) -> bool {
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unimplemented!();
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}
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pub fn by_name<'a>(&'a self, name: &str) -> &'a Texture {
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unimplemented!();
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}
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pub fn by_id<'a, 'b>(&'a self, id: &'b str) -> &'a Texture {
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unimplemented!();
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}
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pub fn has_hash(&self, hash: &Sha256) -> bool {
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unimplemented!();
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}
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pub fn get_texture_file(&mut self, hash: &Sha256) -> TextureFileResult {
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unimplemented!();
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}
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pub fn get_texture_preview(&mut self, hash: &Sha256) -> TextureFileResult {
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unimplemented!();
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}
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}
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pub use self::search::Query;
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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 = 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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unimplemented!()
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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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unimplemented!()
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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 { year: u16, month: u16, day: u16 },
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}
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}
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pub 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 fn generate_preview(
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input: &[u8],
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format: TextureFormat,
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config: &ConvertConfig,
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) -> ::image::ImageResult<Vec<u8>> {
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unimplemented!()
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}
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}
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}
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pub mod main {
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use crate::model::*;
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use crate::protocol::*;
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use std::sync::Arc;
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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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fn query(&mut self, query: &[String]) -> ProtocolResult<Vec<Texture>> {
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unimplemented!()
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}
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fn get_texture_by_id(&mut self, id: String) -> ProtocolResult<Option<Texture>> {
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unimplemented!()
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}
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fn get_texture_by_name(&mut self, id: String) -> ProtocolResult<Option<Texture>> {
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unimplemented!()
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}
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fn get_texture_file(&mut self, hash: Sha256) -> ProtocolResult<Arc<Vec<u8>>> {
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unimplemented!()
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}
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fn get_texture_preview(&mut self, hash: Sha256) -> ProtocolResult<Arc<Vec<u8>>> {
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unimplemented!()
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}
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fn replace_texture(
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&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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) -> ProtocolResult<ReplaceTextureStatus> {
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unimplemented!()
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}
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}
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pub fn main() {
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unimplemented!()
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}
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}
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