1804 lines
60 KiB
Rust
1804 lines
60 KiB
Rust
use std::collections::HashMap;
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use std::fs::{File, remove_file};
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use std::ops::Drop;
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use std::path::PathBuf;
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use std::result::Result as RResult;
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use std::sync::Arc;
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use std::sync::RwLock;
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use std::collections::BTreeMap;
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use std::io::{Seek, SeekFrom};
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use std::io::Write;
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use std::convert::From;
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use std::convert::Into;
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use std::sync::Mutex;
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use std::ops::Deref;
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use std::ops::DerefMut;
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use std::fmt::Formatter;
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use std::fmt::Debug;
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use std::fmt::Error as FMTError;
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use toml::{Table, Value};
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use regex::Regex;
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use glob::glob;
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use error::{ParserErrorKind, ParserError};
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use error::{StoreError, StoreErrorKind};
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use storeid::{StoreId, StoreIdIterator};
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use lazyfile::LazyFile;
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use hook::aspect::Aspect;
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use hook::accessor::{ MutableHookDataAccessor,
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NonMutableHookDataAccessor,
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StoreIdAccessor};
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use hook::position::HookPosition;
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use hook::Hook;
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/// The Result Type returned by any interaction with the store that could fail
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pub type Result<T> = RResult<T, StoreError>;
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#[derive(Debug, PartialEq)]
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enum StoreEntryStatus {
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Present,
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Borrowed
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}
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/// A store entry, depending on the option type it is either borrowed currently
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/// or not.
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#[derive(Debug)]
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struct StoreEntry {
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id: StoreId,
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file: LazyFile,
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status: StoreEntryStatus,
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}
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impl StoreEntry {
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fn new(id: StoreId) -> StoreEntry {
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StoreEntry {
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id: id.clone(),
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file: LazyFile::Absent(id),
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status: StoreEntryStatus::Present,
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}
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}
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/// The entry is currently borrowed, meaning that some thread is currently
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/// mutating it
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fn is_borrowed(&self) -> bool {
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self.status == StoreEntryStatus::Borrowed
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}
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fn get_entry(&mut self) -> Result<Entry> {
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if !self.is_borrowed() {
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let file = self.file.get_file_mut();
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if let Err(err) = file {
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if err.err_type() == StoreErrorKind::FileNotFound {
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Ok(Entry::new(self.id.clone()))
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} else {
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Err(err)
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}
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} else {
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// TODO:
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let mut file = file.unwrap();
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let entry = Entry::from_file(self.id.clone(), &mut file);
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file.seek(SeekFrom::Start(0)).ok();
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entry
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}
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} else {
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return Err(StoreError::new(StoreErrorKind::EntryAlreadyBorrowed, None))
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}
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}
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fn write_entry(&mut self, entry: &Entry) -> Result<()> {
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if self.is_borrowed() {
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use std::io::Write;
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let file = try!(self.file.create_file());
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assert_eq!(self.id, entry.location);
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try!(file.set_len(0)
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.map_err(|e| StoreError::new(StoreErrorKind::FileError, Some(Box::new(e)))));
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file.write_all(entry.to_str().as_bytes())
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.map_err(|e| StoreError::new(StoreErrorKind::FileError, Some(Box::new(e))))
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} else {
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Ok(())
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}
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}
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}
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/// The Store itself, through this object one can interact with IMAG's entries
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pub struct Store {
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location: PathBuf,
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/**
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* Configuration object of the store
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*/
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configuration: Option<Value>,
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/*
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* Registered hooks
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*/
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pre_create_aspects : Arc<Mutex<Vec<Aspect>>>,
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post_create_aspects : Arc<Mutex<Vec<Aspect>>>,
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pre_retrieve_aspects : Arc<Mutex<Vec<Aspect>>>,
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post_retrieve_aspects : Arc<Mutex<Vec<Aspect>>>,
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pre_update_aspects : Arc<Mutex<Vec<Aspect>>>,
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post_update_aspects : Arc<Mutex<Vec<Aspect>>>,
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pre_delete_aspects : Arc<Mutex<Vec<Aspect>>>,
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post_delete_aspects : Arc<Mutex<Vec<Aspect>>>,
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/**
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* Internal Path->File cache map
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*
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* Caches the files, so they remain flock()ed
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*
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* Could be optimized for a threadsafe HashMap
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*/
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entries: Arc<RwLock<HashMap<StoreId, StoreEntry>>>,
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}
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impl Store {
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/// Create a new Store object
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pub fn new(location: PathBuf, store_config: Option<Value>) -> Result<Store> {
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use std::fs::create_dir_all;
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use configuration::*;
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debug!("Validating Store configuration");
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if !config_is_valid(&store_config) {
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return Err(StoreError::new(StoreErrorKind::ConfigurationError, None));
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}
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debug!("Building new Store object");
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if !location.exists() {
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debug!("Creating store path");
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let c = create_dir_all(location.clone());
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if c.is_err() {
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debug!("Failed");
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return Err(StoreError::new(StoreErrorKind::StorePathCreate,
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Some(Box::new(c.unwrap_err()))));
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}
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} else {
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if location.is_file() {
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debug!("Store path exists as file");
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return Err(StoreError::new(StoreErrorKind::StorePathExists, None));
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}
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}
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let pre_create_aspects = get_pre_create_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let post_create_aspects = get_post_create_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let pre_retrieve_aspects = get_pre_retrieve_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let post_retrieve_aspects = get_post_retrieve_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let pre_update_aspects = get_pre_update_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let post_update_aspects = get_post_update_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let pre_delete_aspects = get_pre_delete_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let post_delete_aspects = get_post_delete_aspect_names(&store_config)
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.into_iter().map(|n| {
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let cfg = AspectConfig::get_for(&store_config, n.clone());
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Aspect::new(n, cfg)
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}).collect();
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let store = Store {
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location: location,
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configuration: store_config,
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pre_create_aspects : Arc::new(Mutex::new(pre_create_aspects)),
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post_create_aspects : Arc::new(Mutex::new(post_create_aspects)),
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pre_retrieve_aspects : Arc::new(Mutex::new(pre_retrieve_aspects)),
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post_retrieve_aspects : Arc::new(Mutex::new(post_retrieve_aspects)),
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pre_update_aspects : Arc::new(Mutex::new(pre_update_aspects)),
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post_update_aspects : Arc::new(Mutex::new(post_update_aspects)),
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pre_delete_aspects : Arc::new(Mutex::new(pre_delete_aspects)),
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post_delete_aspects : Arc::new(Mutex::new(post_delete_aspects)),
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entries: Arc::new(RwLock::new(HashMap::new())),
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};
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debug!("Store building succeeded");
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Ok(store)
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}
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/// Get the store configuration
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pub fn config(&self) -> Option<&Value> {
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self.configuration.as_ref()
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}
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fn storify_id(&self, id: StoreId) -> StoreId {
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debug!("Create new store id out of: {:?} and {:?}", self.location, id);
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let mut new_id = self.location.clone();
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new_id.push(id);
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debug!("Created: '{:?}'", new_id);
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new_id
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}
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/// Creates the Entry at the given location (inside the entry)
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pub fn create<'a>(&'a self, id: StoreId) -> Result<FileLockEntry<'a>> {
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let id = self.storify_id(id);
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if let Err(e) = self.execute_hooks_for_id(self.pre_create_aspects.clone(), &id) {
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return Err(e);
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}
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let hsmap = self.entries.write();
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if hsmap.is_err() {
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return Err(StoreError::new(StoreErrorKind::LockPoisoned, None))
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}
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let mut hsmap = hsmap.unwrap();
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if hsmap.contains_key(&id) {
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return Err(StoreError::new(StoreErrorKind::EntryAlreadyExists, None))
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}
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hsmap.insert(id.clone(), {
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let mut se = StoreEntry::new(id.clone());
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se.status = StoreEntryStatus::Borrowed;
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se
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});
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let mut fle = FileLockEntry::new(self, Entry::new(id.clone()), id);
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self.execute_hooks_for_mut_file(self.post_create_aspects.clone(), &mut fle)
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.map_err(|e| StoreError::new(StoreErrorKind::PostHookExecuteError, Some(Box::new(e))))
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.map(|_| fle)
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}
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/// Borrow a given Entry. When the `FileLockEntry` is either `update`d or
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/// dropped, the new Entry is written to disk
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pub fn retrieve<'a>(&'a self, id: StoreId) -> Result<FileLockEntry<'a>> {
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let id = self.storify_id(id);
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if let Err(e) = self.execute_hooks_for_id(self.pre_retrieve_aspects.clone(), &id) {
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return Err(e);
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}
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self.entries
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.write()
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.map_err(|_| StoreError::new(StoreErrorKind::LockPoisoned, None))
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.and_then(|mut es| {
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let mut se = es.entry(id.clone()).or_insert_with(|| StoreEntry::new(id.clone()));
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let entry = se.get_entry();
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se.status = StoreEntryStatus::Borrowed;
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entry
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})
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.map(|e| FileLockEntry::new(self, e, id))
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.and_then(|mut fle| {
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if let Err(e) = self.execute_hooks_for_mut_file(self.post_retrieve_aspects.clone(), &mut fle) {
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Err(StoreError::new(StoreErrorKind::HookExecutionError, Some(Box::new(e))))
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} else {
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Ok(fle)
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}
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})
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}
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/// Iterate over all StoreIds for one module name
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pub fn retrieve_for_module(&self, mod_name: &str) -> Result<StoreIdIterator> {
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let mut path = self.path().clone();
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path.push(mod_name);
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if let Some(path) = path.to_str() {
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let path = [ path, "/*" ].join("");
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debug!("glob()ing with '{}'", path);
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glob(&path[..])
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.map(StoreIdIterator::new)
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.map_err(|e| StoreError::new(StoreErrorKind::GlobError, Some(Box::new(e))))
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} else {
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Err(StoreError::new(StoreErrorKind::EncodingError, None))
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}
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}
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/// Return the `FileLockEntry` and write to disk
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pub fn update<'a>(&'a self, mut entry: FileLockEntry<'a>) -> Result<()> {
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if let Err(e) = self.execute_hooks_for_mut_file(self.pre_update_aspects.clone(), &mut entry) {
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return Err(e);
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}
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if let Err(e) = self._update(&entry) {
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return Err(e);
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}
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self.execute_hooks_for_mut_file(self.post_update_aspects.clone(), &mut entry)
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}
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/// Internal method to write to the filesystem store.
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///
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/// # Assumptions
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/// This method assumes that entry is dropped _right after_ the call, hence
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/// it is not public.
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fn _update<'a>(&'a self, entry: &FileLockEntry<'a>) -> Result<()> {
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let hsmap = self.entries.write();
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if hsmap.is_err() {
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return Err(StoreError::new(StoreErrorKind::LockPoisoned, None))
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}
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let mut hsmap = hsmap.unwrap();
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let mut se = try!(hsmap.get_mut(&entry.key)
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.ok_or(StoreError::new(StoreErrorKind::IdNotFound, None)));
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assert!(se.is_borrowed(), "Tried to update a non borrowed entry.");
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debug!("Verifying Entry");
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try!(entry.entry.verify());
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debug!("Writing Entry");
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try!(se.write_entry(&entry.entry));
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se.status = StoreEntryStatus::Present;
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Ok(())
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}
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/// Retrieve a copy of a given entry, this cannot be used to mutate
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/// the one on disk
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pub fn retrieve_copy(&self, id: StoreId) -> Result<Entry> {
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let id = self.storify_id(id);
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let entries_lock = self.entries.write();
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if entries_lock.is_err() {
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return Err(StoreError::new(StoreErrorKind::LockPoisoned, None))
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}
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let entries = entries_lock.unwrap();
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// if the entry is currently modified by the user, we cannot drop it
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if entries.get(&id).map(|e| e.is_borrowed()).unwrap_or(false) {
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return Err(StoreError::new(StoreErrorKind::IdLocked, None));
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}
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StoreEntry::new(id).get_entry()
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}
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/// Delete an entry
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pub fn delete(&self, id: StoreId) -> Result<()> {
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let id = self.storify_id(id);
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if let Err(e) = self.execute_hooks_for_id(self.pre_delete_aspects.clone(), &id) {
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return Err(e);
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}
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let entries_lock = self.entries.write();
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if entries_lock.is_err() {
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return Err(StoreError::new(StoreErrorKind::LockPoisoned, None))
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}
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let mut entries = entries_lock.unwrap();
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// if the entry is currently modified by the user, we cannot drop it
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if entries.get(&id).map(|e| e.is_borrowed()).unwrap_or(false) {
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return Err(StoreError::new(StoreErrorKind::IdLocked, None));
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}
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// remove the entry first, then the file
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entries.remove(&id);
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if let Err(e) = remove_file(&id) {
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return Err(StoreError::new(StoreErrorKind::FileError, Some(Box::new(e))));
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}
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self.execute_hooks_for_id(self.post_delete_aspects.clone(), &id)
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}
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/// Gets the path where this store is on the disk
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pub fn path(&self) -> &PathBuf {
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&self.location
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}
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pub fn register_hook(&mut self,
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position: HookPosition,
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aspect_name: &String,
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mut h: Box<Hook>)
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-> Result<()>
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{
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debug!("Registering hook: {:?}", h);
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debug!(" in position: {:?}", position);
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debug!(" with aspect: {:?}", aspect_name);
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let guard = match position {
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HookPosition::PreCreate => self.pre_create_aspects.clone(),
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HookPosition::PostCreate => self.post_create_aspects.clone(),
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HookPosition::PreRetrieve => self.pre_retrieve_aspects.clone(),
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HookPosition::PostRetrieve => self.post_retrieve_aspects.clone(),
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HookPosition::PreUpdate => self.pre_update_aspects.clone(),
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HookPosition::PostUpdate => self.post_update_aspects.clone(),
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HookPosition::PreDelete => self.pre_delete_aspects.clone(),
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HookPosition::PostDelete => self.post_delete_aspects.clone(),
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};
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let guard = guard
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.deref()
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.lock()
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.map_err(|_| StoreError::new(StoreErrorKind::LockError, None));
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if guard.is_err() {
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return Err(StoreError::new(StoreErrorKind::HookRegisterError,
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Some(Box::new(guard.err().unwrap()))));
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}
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let mut guard = guard.unwrap();
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for mut aspect in guard.deref_mut() {
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if aspect.name().clone() == aspect_name.clone() {
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self.get_config_for_hook(h.name()).map(|config| h.set_config(config));
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aspect.register_hook(h);
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return Ok(());
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}
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}
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|
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let annfe = StoreError::new(StoreErrorKind::AspectNameNotFoundError, None);
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return Err(StoreError::new(StoreErrorKind::HookRegisterError, Some(Box::new(annfe))));
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}
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|
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fn get_config_for_hook(&self, name: &str) -> Option<&Value> {
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match &self.configuration {
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&Some(Value::Table(ref tabl)) => {
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tabl.get("hooks")
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.map(|hook_section| {
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match hook_section {
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&Value::Table(ref tabl) => tabl.get(name),
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_ => None
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}
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})
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.unwrap_or(None)
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},
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_ => None,
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}
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}
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|
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fn execute_hooks_for_id(&self,
|
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aspects: Arc<Mutex<Vec<Aspect>>>,
|
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id: &StoreId)
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-> Result<()>
|
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{
|
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let guard = aspects.deref().lock();
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if guard.is_err() { return Err(StoreError::new(StoreErrorKind::PreHookExecuteError, None)) }
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guard.unwrap().deref().iter()
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.fold(Ok(()), |acc, aspect| {
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debug!("[Aspect][exec]: {:?}", aspect);
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acc.and_then(|_| (aspect as &StoreIdAccessor).access(id))
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})
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.map_err(|e| StoreError::new(StoreErrorKind::PreHookExecuteError, Some(Box::new(e))))
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}
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|
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fn execute_hooks_for_mut_file(&self,
|
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aspects: Arc<Mutex<Vec<Aspect>>>,
|
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fle: &mut FileLockEntry)
|
|
-> Result<()>
|
|
{
|
|
let guard = aspects.deref().lock();
|
|
if guard.is_err() { return Err(StoreError::new(StoreErrorKind::PreHookExecuteError, None)) }
|
|
|
|
guard.unwrap().deref().iter()
|
|
.fold(Ok(()), |acc, aspect| {
|
|
debug!("[Aspect][exec]: {:?}", aspect);
|
|
acc.and_then(|_| aspect.access_mut(fle))
|
|
})
|
|
.map_err(|e| StoreError::new(StoreErrorKind::PreHookExecuteError, Some(Box::new(e))))
|
|
}
|
|
|
|
}
|
|
|
|
impl Debug for Store {
|
|
|
|
fn fmt(&self, fmt: &mut Formatter) -> RResult<(), FMTError> {
|
|
try!(write!(fmt, " --- Store ---\n"));
|
|
try!(write!(fmt, "\n"));
|
|
try!(write!(fmt, " - location : {:?}\n", self.location));
|
|
try!(write!(fmt, " - configuration : {:?}\n", self.configuration));
|
|
try!(write!(fmt, " - pre_create_aspects : {:?}\n", self.pre_create_aspects ));
|
|
try!(write!(fmt, " - post_create_aspects : {:?}\n", self.post_create_aspects ));
|
|
try!(write!(fmt, " - pre_retrieve_aspects : {:?}\n", self.pre_retrieve_aspects ));
|
|
try!(write!(fmt, " - post_retrieve_aspects : {:?}\n", self.post_retrieve_aspects ));
|
|
try!(write!(fmt, " - pre_update_aspects : {:?}\n", self.pre_update_aspects ));
|
|
try!(write!(fmt, " - post_update_aspects : {:?}\n", self.post_update_aspects ));
|
|
try!(write!(fmt, " - pre_delete_aspects : {:?}\n", self.pre_delete_aspects ));
|
|
try!(write!(fmt, " - post_delete_aspects : {:?}\n", self.post_delete_aspects ));
|
|
try!(write!(fmt, "\n"));
|
|
try!(write!(fmt, "Entries:\n"));
|
|
try!(write!(fmt, "{:?}", self.entries));
|
|
try!(write!(fmt, "\n"));
|
|
Ok(())
|
|
}
|
|
|
|
}
|
|
|
|
impl Drop for Store {
|
|
|
|
/**
|
|
* Unlock all files on drop
|
|
*
|
|
* TODO: Unlock them
|
|
*/
|
|
fn drop(&mut self) {
|
|
debug!("Dropping store");
|
|
}
|
|
|
|
}
|
|
|
|
/// A struct that allows you to borrow an Entry
|
|
pub struct FileLockEntry<'a> {
|
|
store: &'a Store,
|
|
entry: Entry,
|
|
key: StoreId,
|
|
}
|
|
|
|
impl<'a> FileLockEntry<'a, > {
|
|
fn new(store: &'a Store, entry: Entry, key: StoreId) -> FileLockEntry<'a> {
|
|
FileLockEntry {
|
|
store: store,
|
|
entry: entry,
|
|
key: key,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> ::std::ops::Deref for FileLockEntry<'a> {
|
|
type Target = Entry;
|
|
|
|
fn deref(&self) -> &Self::Target {
|
|
&self.entry
|
|
}
|
|
}
|
|
|
|
impl<'a> ::std::ops::DerefMut for FileLockEntry<'a> {
|
|
fn deref_mut(&mut self) -> &mut Self::Target {
|
|
&mut self.entry
|
|
}
|
|
}
|
|
|
|
impl<'a> Drop for FileLockEntry<'a> {
|
|
/// This will silently ignore errors, use `Store::update` if you want to catch the errors
|
|
fn drop(&mut self) {
|
|
let _ = self.store._update(self);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* EntryContent type
|
|
*/
|
|
pub type EntryContent = String;
|
|
|
|
/**
|
|
* EntryHeader
|
|
*
|
|
* This is basically a wrapper around toml::Table which provides convenience to the user of the
|
|
* librray.
|
|
*/
|
|
#[derive(Debug, Clone)]
|
|
pub struct EntryHeader {
|
|
header: Value,
|
|
}
|
|
|
|
pub type EntryResult<V> = RResult<V, ParserError>;
|
|
|
|
#[derive(Debug, Clone, PartialEq, Eq)]
|
|
enum Token {
|
|
Key(String),
|
|
Index(usize),
|
|
}
|
|
|
|
/**
|
|
* Wrapper type around file header (TOML) object
|
|
*/
|
|
impl EntryHeader {
|
|
|
|
pub fn new() -> EntryHeader {
|
|
EntryHeader {
|
|
header: build_default_header()
|
|
}
|
|
}
|
|
|
|
pub fn header(&self) -> &Value {
|
|
&self.header
|
|
}
|
|
|
|
fn from_table(t: Table) -> EntryHeader {
|
|
EntryHeader {
|
|
header: Value::Table(t)
|
|
}
|
|
}
|
|
|
|
pub fn parse(s: &str) -> EntryResult<EntryHeader> {
|
|
use toml::Parser;
|
|
|
|
let mut parser = Parser::new(s);
|
|
parser.parse()
|
|
.ok_or(ParserError::new(ParserErrorKind::TOMLParserErrors, None))
|
|
.and_then(verify_header_consistency)
|
|
.map(EntryHeader::from_table)
|
|
}
|
|
|
|
pub fn verify(&self) -> Result<()> {
|
|
match &self.header {
|
|
&Value::Table(ref t) => verify_header(&t),
|
|
_ => Err(StoreError::new(StoreErrorKind::HeaderTypeFailure, None)),
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Insert a header field by a string-spec
|
|
*
|
|
* ```ignore
|
|
* insert("something.in.a.field", Boolean(true));
|
|
* ```
|
|
*
|
|
* If an array field was accessed which is _out of bounds_ of the array available, the element
|
|
* is appended to the array.
|
|
*
|
|
* Inserts a Boolean in the section "something" -> "in" -> "a" -> "field"
|
|
* A JSON equivalent would be
|
|
*
|
|
* {
|
|
* something: {
|
|
* in: {
|
|
* a: {
|
|
* field: true
|
|
* }
|
|
* }
|
|
* }
|
|
* }
|
|
*
|
|
* Returns true if header field was set, false if there is already a value
|
|
*/
|
|
pub fn insert(&mut self, spec: &str, v: Value) -> Result<bool> {
|
|
self.insert_with_sep(spec, '.', v)
|
|
}
|
|
|
|
pub fn insert_with_sep(&mut self, spec: &str, sep: char, v: Value) -> Result<bool> {
|
|
let tokens = EntryHeader::tokenize(spec, sep);
|
|
if tokens.is_err() { // return parser error if any
|
|
return tokens.map(|_| false);
|
|
}
|
|
let tokens = tokens.unwrap();
|
|
|
|
let destination = tokens.iter().last();
|
|
if destination.is_none() {
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathSyntaxError, None));
|
|
}
|
|
let destination = destination.unwrap();
|
|
|
|
let path_to_dest = tokens[..(tokens.len() - 1)].into(); // N - 1 tokens
|
|
let value = EntryHeader::walk_header(&mut self.header, path_to_dest); // walk N-1 tokens
|
|
if value.is_err() {
|
|
return value.map(|_| false);
|
|
}
|
|
let mut value = value.unwrap();
|
|
|
|
// There is already an value at this place
|
|
if EntryHeader::extract(value, destination).is_ok() {
|
|
return Ok(false);
|
|
}
|
|
|
|
match destination {
|
|
&Token::Key(ref s) => { // if the destination shall be an map key
|
|
match value {
|
|
/*
|
|
* Put it in there if we have a map
|
|
*/
|
|
&mut Value::Table(ref mut t) => {
|
|
t.insert(s.clone(), v);
|
|
}
|
|
|
|
/*
|
|
* Fail if there is no map here
|
|
*/
|
|
_ => return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None)),
|
|
}
|
|
},
|
|
|
|
&Token::Index(i) => { // if the destination shall be an array
|
|
match value {
|
|
|
|
/*
|
|
* Put it in there if we have an array
|
|
*/
|
|
&mut Value::Array(ref mut a) => {
|
|
a.push(v); // push to the end of the array
|
|
|
|
// if the index is inside the array, we swap-remove the element at this
|
|
// index
|
|
if a.len() < i {
|
|
a.swap_remove(i);
|
|
}
|
|
},
|
|
|
|
/*
|
|
* Fail if there is no array here
|
|
*/
|
|
_ => return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None)),
|
|
}
|
|
},
|
|
}
|
|
|
|
Ok(true)
|
|
}
|
|
|
|
/**
|
|
* Set a header field by a string-spec
|
|
*
|
|
* ```ignore
|
|
* set("something.in.a.field", Boolean(true));
|
|
* ```
|
|
*
|
|
* Sets a Boolean in the section "something" -> "in" -> "a" -> "field"
|
|
* A JSON equivalent would be
|
|
*
|
|
* {
|
|
* something: {
|
|
* in: {
|
|
* a: {
|
|
* field: true
|
|
* }
|
|
* }
|
|
* }
|
|
* }
|
|
*
|
|
* If there is already a value at this place, this value will be overridden and the old value
|
|
* will be returned
|
|
*/
|
|
pub fn set(&mut self, spec: &str, v: Value) -> Result<Option<Value>> {
|
|
self.set_with_sep(spec, '.', v)
|
|
}
|
|
|
|
pub fn set_with_sep(&mut self, spec: &str, sep: char, v: Value) -> Result<Option<Value>> {
|
|
let tokens = EntryHeader::tokenize(spec, sep);
|
|
if tokens.is_err() { // return parser error if any
|
|
return Err(tokens.unwrap_err());
|
|
}
|
|
let tokens = tokens.unwrap();
|
|
debug!("tokens = {:?}", tokens);
|
|
|
|
let destination = tokens.iter().last();
|
|
if destination.is_none() {
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathSyntaxError, None));
|
|
}
|
|
let destination = destination.unwrap();
|
|
debug!("destination = {:?}", destination);
|
|
|
|
let path_to_dest = tokens[..(tokens.len() - 1)].into(); // N - 1 tokens
|
|
let value = EntryHeader::walk_header(&mut self.header, path_to_dest); // walk N-1 tokens
|
|
if value.is_err() {
|
|
return Err(value.unwrap_err());
|
|
}
|
|
let mut value = value.unwrap();
|
|
debug!("walked value = {:?}", value);
|
|
|
|
match destination {
|
|
&Token::Key(ref s) => { // if the destination shall be an map key->value
|
|
match value {
|
|
/*
|
|
* Put it in there if we have a map
|
|
*/
|
|
&mut Value::Table(ref mut t) => {
|
|
debug!("Matched Key->Table");
|
|
return Ok(t.insert(s.clone(), v));
|
|
}
|
|
|
|
/*
|
|
* Fail if there is no map here
|
|
*/
|
|
_ => {
|
|
debug!("Matched Key->NON-Table");
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None));
|
|
}
|
|
}
|
|
},
|
|
|
|
&Token::Index(i) => { // if the destination shall be an array
|
|
match value {
|
|
|
|
/*
|
|
* Put it in there if we have an array
|
|
*/
|
|
&mut Value::Array(ref mut a) => {
|
|
debug!("Matched Index->Array");
|
|
a.push(v); // push to the end of the array
|
|
|
|
// if the index is inside the array, we swap-remove the element at this
|
|
// index
|
|
if a.len() > i {
|
|
debug!("Swap-Removing in Array {:?}[{:?}] <- {:?}", a, i, a[a.len()-1]);
|
|
return Ok(Some(a.swap_remove(i)));
|
|
}
|
|
|
|
debug!("Appended");
|
|
return Ok(None);
|
|
},
|
|
|
|
/*
|
|
* Fail if there is no array here
|
|
*/
|
|
_ => {
|
|
debug!("Matched Index->NON-Array");
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None));
|
|
},
|
|
}
|
|
},
|
|
}
|
|
|
|
Ok(None)
|
|
}
|
|
|
|
/**
|
|
* Read a header field by a string-spec
|
|
*
|
|
* ```ignore
|
|
* let value = read("something.in.a.field");
|
|
* ```
|
|
*
|
|
* Reads a Value in the section "something" -> "in" -> "a" -> "field"
|
|
* A JSON equivalent would be
|
|
*
|
|
* {
|
|
* something: {
|
|
* in: {
|
|
* a: {
|
|
* field: true
|
|
* }
|
|
* }
|
|
* }
|
|
* }
|
|
*
|
|
* If there is no a value at this place, None will be returned. This also holds true for Arrays
|
|
* which are accessed at an index which is not yet there, even if the accessed index is much
|
|
* larger than the array length.
|
|
*/
|
|
pub fn read(&self, spec: &str) -> Result<Option<Value>> {
|
|
self.read_with_sep(spec, '.')
|
|
}
|
|
|
|
pub fn read_with_sep(&self, spec: &str, splitchr: char) -> Result<Option<Value>> {
|
|
let tokens = EntryHeader::tokenize(spec, splitchr);
|
|
if tokens.is_err() { // return parser error if any
|
|
return Err(tokens.unwrap_err());
|
|
}
|
|
let tokens = tokens.unwrap();
|
|
|
|
let mut header_clone = self.header.clone(); // we clone as READing is simpler this way
|
|
let value = EntryHeader::walk_header(&mut header_clone, tokens); // walk N-1 tokens
|
|
if value.is_err() {
|
|
let e = value.unwrap_err();
|
|
return match e.err_type() {
|
|
// We cannot find the header key, as there is no path to it
|
|
StoreErrorKind::HeaderKeyNotFound => Ok(None),
|
|
_ => Err(e),
|
|
};
|
|
}
|
|
Ok(Some(value.unwrap().clone()))
|
|
}
|
|
|
|
pub fn delete(&mut self, spec: &str) -> Result<Option<Value>> {
|
|
let tokens = EntryHeader::tokenize(spec, '.');
|
|
if tokens.is_err() { // return parser error if any
|
|
return Err(tokens.unwrap_err());
|
|
}
|
|
let tokens = tokens.unwrap();
|
|
|
|
let destination = tokens.iter().last();
|
|
if destination.is_none() {
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathSyntaxError, None));
|
|
}
|
|
let destination = destination.unwrap();
|
|
debug!("destination = {:?}", destination);
|
|
|
|
let path_to_dest = tokens[..(tokens.len() - 1)].into(); // N - 1 tokens
|
|
let value = EntryHeader::walk_header(&mut self.header, path_to_dest); // walk N-1 tokens
|
|
if value.is_err() {
|
|
return Err(value.unwrap_err());
|
|
}
|
|
let mut value = value.unwrap();
|
|
debug!("walked value = {:?}", value);
|
|
|
|
match destination {
|
|
&Token::Key(ref s) => { // if the destination shall be an map key->value
|
|
match value {
|
|
&mut Value::Table(ref mut t) => {
|
|
debug!("Matched Key->Table, removing {:?}", s);
|
|
return Ok(t.remove(s));
|
|
},
|
|
_ => {
|
|
debug!("Matched Key->NON-Table");
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None));
|
|
}
|
|
}
|
|
},
|
|
|
|
&Token::Index(i) => { // if the destination shall be an array
|
|
match value {
|
|
&mut Value::Array(ref mut a) => {
|
|
// if the index is inside the array, we swap-remove the element at this
|
|
// index
|
|
if a.len() > i {
|
|
debug!("Removing in Array {:?}[{:?}]", a, i);
|
|
return Ok(Some(a.remove(i)));
|
|
} else {
|
|
return Ok(None);
|
|
}
|
|
},
|
|
_ => {
|
|
debug!("Matched Index->NON-Array");
|
|
return Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None));
|
|
},
|
|
}
|
|
},
|
|
}
|
|
|
|
Ok(None)
|
|
}
|
|
|
|
fn tokenize(spec: &str, splitchr: char) -> Result<Vec<Token>> {
|
|
use std::str::FromStr;
|
|
|
|
spec.split(splitchr)
|
|
.map(|s| {
|
|
usize::from_str(s)
|
|
.map(Token::Index)
|
|
.or_else(|_| Ok(Token::Key(String::from(s))))
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
fn walk_header(v: &mut Value, tokens: Vec<Token>) -> Result<&mut Value> {
|
|
use std::vec::IntoIter;
|
|
|
|
fn walk_iter<'a>(v: Result<&'a mut Value>, i: &mut IntoIter<Token>) -> Result<&'a mut Value> {
|
|
let next = i.next();
|
|
v.and_then(move |value| {
|
|
if let Some(token) = next {
|
|
walk_iter(EntryHeader::extract(value, &token), i)
|
|
} else {
|
|
Ok(value)
|
|
}
|
|
})
|
|
}
|
|
|
|
walk_iter(Ok(v), &mut tokens.into_iter())
|
|
}
|
|
|
|
fn extract_from_table<'a>(v: &'a mut Value, s: &String) -> Result<&'a mut Value> {
|
|
match v {
|
|
&mut Value::Table(ref mut t) => {
|
|
t.get_mut(&s[..])
|
|
.ok_or(StoreError::new(StoreErrorKind::HeaderKeyNotFound, None))
|
|
},
|
|
_ => Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None)),
|
|
}
|
|
}
|
|
|
|
fn extract_from_array(v: &mut Value, i: usize) -> Result<&mut Value> {
|
|
match v {
|
|
&mut Value::Array(ref mut a) => {
|
|
if a.len() < i {
|
|
Err(StoreError::new(StoreErrorKind::HeaderKeyNotFound, None))
|
|
} else {
|
|
Ok(&mut a[i])
|
|
}
|
|
},
|
|
_ => Err(StoreError::new(StoreErrorKind::HeaderPathTypeFailure, None)),
|
|
}
|
|
}
|
|
|
|
fn extract<'a>(v: &'a mut Value, token: &Token) -> Result<&'a mut Value> {
|
|
match token {
|
|
&Token::Key(ref s) => EntryHeader::extract_from_table(v, s),
|
|
&Token::Index(i) => EntryHeader::extract_from_array(v, i),
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
impl Into<Table> for EntryHeader {
|
|
|
|
fn into(self) -> Table {
|
|
match self.header {
|
|
Value::Table(t) => t,
|
|
_ => panic!("EntryHeader is not a table!"),
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
impl From<Table> for EntryHeader {
|
|
|
|
fn from(t: Table) -> EntryHeader {
|
|
EntryHeader { header: Value::Table(t) }
|
|
}
|
|
|
|
}
|
|
|
|
fn build_default_header() -> Value { // BTreeMap<String, Value>
|
|
let mut m = BTreeMap::new();
|
|
|
|
m.insert(String::from("imag"), {
|
|
let mut imag_map = BTreeMap::<String, Value>::new();
|
|
|
|
imag_map.insert(String::from("version"), Value::String(String::from(version!())));
|
|
imag_map.insert(String::from("links"), Value::Array(vec![]));
|
|
|
|
Value::Table(imag_map)
|
|
});
|
|
|
|
Value::Table(m)
|
|
}
|
|
fn verify_header(t: &Table) -> Result<()> {
|
|
if !has_main_section(t) {
|
|
Err(StoreError::from(ParserError::new(ParserErrorKind::MissingMainSection, None)))
|
|
} else if !has_imag_version_in_main_section(t) {
|
|
Err(StoreError::from(ParserError::new(ParserErrorKind::MissingVersionInfo, None)))
|
|
} else if !has_only_tables(t) {
|
|
debug!("Could not verify that it only has tables in its base table");
|
|
Err(StoreError::from(ParserError::new(ParserErrorKind::NonTableInBaseTable, None)))
|
|
} else {
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
fn verify_header_consistency(t: Table) -> EntryResult<Table> {
|
|
if let Err(e) = verify_header(&t) {
|
|
Err(ParserError::new(ParserErrorKind::HeaderInconsistency, Some(Box::new(e))))
|
|
} else {
|
|
Ok(t)
|
|
}
|
|
}
|
|
|
|
fn has_only_tables(t: &Table) -> bool {
|
|
debug!("Verifying that table has only tables");
|
|
t.iter().all(|(_, x)| if let &Value::Table(_) = x { true } else { false })
|
|
}
|
|
|
|
fn has_main_section(t: &Table) -> bool {
|
|
t.contains_key("imag") &&
|
|
match t.get("imag") {
|
|
Some(&Value::Table(_)) => true,
|
|
Some(_) => false,
|
|
None => false,
|
|
}
|
|
}
|
|
|
|
fn has_imag_version_in_main_section(t: &Table) -> bool {
|
|
use semver::Version;
|
|
|
|
match t.get("imag").unwrap() {
|
|
&Value::Table(ref sec) => {
|
|
sec.get("version")
|
|
.and_then(|v| {
|
|
match v {
|
|
&Value::String(ref s) => {
|
|
Some(Version::parse(&s[..]).is_ok())
|
|
},
|
|
_ => Some(false),
|
|
}
|
|
})
|
|
.unwrap_or(false)
|
|
}
|
|
_ => false,
|
|
}
|
|
}
|
|
|
|
/**
|
|
* An Entry of the store
|
|
*
|
|
* Contains location, header and content part.
|
|
*/
|
|
#[derive(Debug, Clone)]
|
|
pub struct Entry {
|
|
location: StoreId,
|
|
header: EntryHeader,
|
|
content: EntryContent,
|
|
}
|
|
|
|
impl Entry {
|
|
|
|
pub fn new(loc: StoreId) -> Entry {
|
|
Entry {
|
|
location: loc,
|
|
header: EntryHeader::new(),
|
|
content: EntryContent::new()
|
|
}
|
|
}
|
|
|
|
pub fn from_file(loc: StoreId, file: &mut File) -> Result<Entry> {
|
|
let text = {
|
|
use std::io::Read;
|
|
let mut s = String::new();
|
|
try!(file.read_to_string(&mut s));
|
|
s
|
|
};
|
|
Self::from_str(loc, &text[..])
|
|
}
|
|
|
|
pub fn from_str(loc: StoreId, s: &str) -> Result<Entry> {
|
|
debug!("Building entry from string");
|
|
lazy_static! {
|
|
static ref RE: Regex = Regex::new(r"(?smx)
|
|
^---$
|
|
(?P<header>.*) # Header
|
|
^---$\n
|
|
(?P<content>.*) # Content
|
|
").unwrap();
|
|
}
|
|
|
|
let matches = RE.captures(s);
|
|
|
|
if matches.is_none() {
|
|
return Err(StoreError::new(StoreErrorKind::MalformedEntry, None));
|
|
}
|
|
|
|
let matches = matches.unwrap();
|
|
|
|
let header = matches.name("header");
|
|
let content = matches.name("content").unwrap_or("");
|
|
|
|
if header.is_none() {
|
|
return Err(StoreError::new(StoreErrorKind::MalformedEntry, None));
|
|
}
|
|
|
|
debug!("Header and content found. Yay! Building Entry object now");
|
|
Ok(Entry {
|
|
location: loc,
|
|
header: try!(EntryHeader::parse(header.unwrap())),
|
|
content: content.into(),
|
|
})
|
|
}
|
|
|
|
pub fn to_str(&self) -> String {
|
|
format!("---{header}---\n{content}",
|
|
header = ::toml::encode_str(&self.header.header),
|
|
content = self.content)
|
|
}
|
|
|
|
pub fn get_location(&self) -> &StoreId {
|
|
&self.location
|
|
}
|
|
|
|
pub fn get_header(&self) -> &EntryHeader {
|
|
&self.header
|
|
}
|
|
|
|
pub fn get_header_mut(&mut self) -> &mut EntryHeader {
|
|
&mut self.header
|
|
}
|
|
|
|
pub fn get_content(&self) -> &EntryContent {
|
|
&self.content
|
|
}
|
|
|
|
pub fn get_content_mut(&mut self) -> &mut EntryContent {
|
|
&mut self.content
|
|
}
|
|
|
|
pub fn verify(&self) -> Result<()> {
|
|
self.header.verify()
|
|
}
|
|
|
|
}
|
|
|
|
|
|
#[cfg(test)]
|
|
mod test {
|
|
extern crate env_logger;
|
|
|
|
use std::collections::BTreeMap;
|
|
use super::EntryHeader;
|
|
use super::Token;
|
|
|
|
use toml::Value;
|
|
|
|
#[test]
|
|
fn test_imag_section() {
|
|
use super::has_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
map.insert("imag".into(), Value::Table(BTreeMap::new()));
|
|
|
|
assert!(has_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_imag_invalid_section_type() {
|
|
use super::has_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
map.insert("imag".into(), Value::Boolean(false));
|
|
|
|
assert!(!has_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_imag_abscent_main_section() {
|
|
use super::has_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
map.insert("not_imag".into(), Value::Boolean(false));
|
|
|
|
assert!(!has_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_main_section_without_version() {
|
|
use super::has_imag_version_in_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
map.insert("imag".into(), Value::Table(BTreeMap::new()));
|
|
|
|
assert!(!has_imag_version_in_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_main_section_with_version() {
|
|
use super::has_imag_version_in_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
let mut sub = BTreeMap::new();
|
|
sub.insert("version".into(), Value::String("0.0.0".into()));
|
|
map.insert("imag".into(), Value::Table(sub));
|
|
|
|
assert!(has_imag_version_in_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_main_section_with_version_in_wrong_type() {
|
|
use super::has_imag_version_in_main_section;
|
|
|
|
let mut map = BTreeMap::new();
|
|
let mut sub = BTreeMap::new();
|
|
sub.insert("version".into(), Value::Boolean(false));
|
|
map.insert("imag".into(), Value::Table(sub));
|
|
|
|
assert!(!has_imag_version_in_main_section(&map));
|
|
}
|
|
|
|
#[test]
|
|
fn test_verification_good() {
|
|
use super::verify_header_consistency;
|
|
|
|
let mut header = BTreeMap::new();
|
|
let sub = {
|
|
let mut sub = BTreeMap::new();
|
|
sub.insert("version".into(), Value::String(String::from("0.0.0")));
|
|
|
|
Value::Table(sub)
|
|
};
|
|
|
|
header.insert("imag".into(), sub);
|
|
|
|
assert!(verify_header_consistency(header).is_ok());
|
|
}
|
|
|
|
#[test]
|
|
fn test_verification_invalid_versionstring() {
|
|
use super::verify_header_consistency;
|
|
|
|
let mut header = BTreeMap::new();
|
|
let sub = {
|
|
let mut sub = BTreeMap::new();
|
|
sub.insert("version".into(), Value::String(String::from("000")));
|
|
|
|
Value::Table(sub)
|
|
};
|
|
|
|
header.insert("imag".into(), sub);
|
|
|
|
assert!(!verify_header_consistency(header).is_ok());
|
|
}
|
|
|
|
|
|
#[test]
|
|
fn test_verification_current_version() {
|
|
use super::verify_header_consistency;
|
|
|
|
let mut header = BTreeMap::new();
|
|
let sub = {
|
|
let mut sub = BTreeMap::new();
|
|
sub.insert("version".into(), Value::String(String::from(version!())));
|
|
|
|
Value::Table(sub)
|
|
};
|
|
|
|
header.insert("imag".into(), sub);
|
|
|
|
assert!(verify_header_consistency(header).is_ok());
|
|
}
|
|
|
|
static TEST_ENTRY : &'static str = "---
|
|
[imag]
|
|
version = \"0.0.3\"
|
|
---
|
|
Hai";
|
|
|
|
#[test]
|
|
fn test_entry_from_str() {
|
|
use super::Entry;
|
|
use std::path::PathBuf;
|
|
println!("{}", TEST_ENTRY);
|
|
let entry = Entry::from_str(PathBuf::from("/test/foo~1.3"),
|
|
TEST_ENTRY).unwrap();
|
|
|
|
assert_eq!(entry.content, "Hai");
|
|
}
|
|
|
|
#[test]
|
|
fn test_entry_to_str() {
|
|
use super::Entry;
|
|
use std::path::PathBuf;
|
|
println!("{}", TEST_ENTRY);
|
|
let entry = Entry::from_str(PathBuf::from("/test/foo~1.3"),
|
|
TEST_ENTRY).unwrap();
|
|
let string = entry.to_str();
|
|
|
|
assert_eq!(TEST_ENTRY, string);
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_simple() {
|
|
let tokens = EntryHeader::tokenize("a", '.').unwrap();
|
|
assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
|
|
assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
|
|
"'a' token was expected, {:?} was parsed", tokens.iter().next());
|
|
|
|
let mut header = BTreeMap::new();
|
|
header.insert(String::from("a"), Value::Integer(1));
|
|
|
|
let mut v_header = Value::Table(header);
|
|
let res = EntryHeader::walk_header(&mut v_header, tokens);
|
|
assert_eq!(&mut Value::Integer(1), res.unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_with_array() {
|
|
let tokens = EntryHeader::tokenize("a.0", '.').unwrap();
|
|
assert!(tokens.len() == 2, "2 token was expected, {} were parsed", tokens.len());
|
|
assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
|
|
"'a' token was expected, {:?} was parsed", tokens.iter().next());
|
|
|
|
let mut header = BTreeMap::new();
|
|
let ary = Value::Array(vec![Value::Integer(1)]);
|
|
header.insert(String::from("a"), ary);
|
|
|
|
|
|
let mut v_header = Value::Table(header);
|
|
let res = EntryHeader::walk_header(&mut v_header, tokens);
|
|
assert_eq!(&mut Value::Integer(1), res.unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_extract_array() {
|
|
let tokens = EntryHeader::tokenize("a", '.').unwrap();
|
|
assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
|
|
assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
|
|
"'a' token was expected, {:?} was parsed", tokens.iter().next());
|
|
|
|
let mut header = BTreeMap::new();
|
|
let ary = Value::Array(vec![Value::Integer(1)]);
|
|
header.insert(String::from("a"), ary);
|
|
|
|
let mut v_header = Value::Table(header);
|
|
let res = EntryHeader::walk_header(&mut v_header, tokens);
|
|
assert_eq!(&mut Value::Array(vec![Value::Integer(1)]), res.unwrap());
|
|
}
|
|
|
|
/**
|
|
* Creates a big testing header.
|
|
*
|
|
* JSON equivalent:
|
|
*
|
|
* ```json
|
|
* {
|
|
* "a": {
|
|
* "array": [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
|
|
* },
|
|
* "b": {
|
|
* "array": [ "string1", "string2", "string3", "string4" ]
|
|
* },
|
|
* "c": {
|
|
* "array": [ 1, "string2", 3, "string4" ]
|
|
* },
|
|
* "d": {
|
|
* "array": [
|
|
* {
|
|
* "d1": 1
|
|
* },
|
|
* {
|
|
* "d2": 2
|
|
* },
|
|
* {
|
|
* "d3": 3
|
|
* },
|
|
* ],
|
|
*
|
|
* "something": "else",
|
|
*
|
|
* "and": {
|
|
* "something": {
|
|
* "totally": "different"
|
|
* }
|
|
* }
|
|
* }
|
|
* }
|
|
* ```
|
|
*
|
|
* The sections "a", "b", "c", "d" are created in the respective helper functions
|
|
* create_header_section_a, create_header_section_b, create_header_section_c and
|
|
* create_header_section_d.
|
|
*
|
|
* These functions can also be used for testing.
|
|
*
|
|
*/
|
|
fn create_header() -> Value {
|
|
let a = create_header_section_a();
|
|
let b = create_header_section_b();
|
|
let c = create_header_section_c();
|
|
let d = create_header_section_d();
|
|
|
|
let mut header = BTreeMap::new();
|
|
header.insert(String::from("a"), a);
|
|
header.insert(String::from("b"), b);
|
|
header.insert(String::from("c"), c);
|
|
header.insert(String::from("d"), d);
|
|
|
|
Value::Table(header)
|
|
}
|
|
|
|
fn create_header_section_a() -> Value {
|
|
// 0..10 is exclusive 10
|
|
let a_ary = Value::Array((0..10).map(|x| Value::Integer(x)).collect());
|
|
|
|
let mut a_obj = BTreeMap::new();
|
|
a_obj.insert(String::from("array"), a_ary);
|
|
Value::Table(a_obj)
|
|
}
|
|
|
|
fn create_header_section_b() -> Value {
|
|
let b_ary = Value::Array((0..9)
|
|
.map(|x| Value::String(format!("string{}", x)))
|
|
.collect());
|
|
|
|
let mut b_obj = BTreeMap::new();
|
|
b_obj.insert(String::from("array"), b_ary);
|
|
Value::Table(b_obj)
|
|
}
|
|
|
|
fn create_header_section_c() -> Value {
|
|
let c_ary = Value::Array(
|
|
vec![
|
|
Value::Integer(1),
|
|
Value::String(String::from("string2")),
|
|
Value::Integer(3),
|
|
Value::String(String::from("string4"))
|
|
]);
|
|
|
|
let mut c_obj = BTreeMap::new();
|
|
c_obj.insert(String::from("array"), c_ary);
|
|
Value::Table(c_obj)
|
|
}
|
|
|
|
fn create_header_section_d() -> Value {
|
|
let d_ary = Value::Array(
|
|
vec![
|
|
{
|
|
let mut tab = BTreeMap::new();
|
|
tab.insert(String::from("d1"), Value::Integer(1));
|
|
tab
|
|
},
|
|
{
|
|
let mut tab = BTreeMap::new();
|
|
tab.insert(String::from("d2"), Value::Integer(2));
|
|
tab
|
|
},
|
|
{
|
|
let mut tab = BTreeMap::new();
|
|
tab.insert(String::from("d3"), Value::Integer(3));
|
|
tab
|
|
},
|
|
].into_iter().map(Value::Table).collect());
|
|
|
|
let and_obj = Value::Table({
|
|
let mut tab = BTreeMap::new();
|
|
let something_tab = Value::Table({
|
|
let mut tab = BTreeMap::new();
|
|
tab.insert(String::from("totally"), Value::String(String::from("different")));
|
|
tab
|
|
});
|
|
tab.insert(String::from("something"), something_tab);
|
|
tab
|
|
});
|
|
|
|
let mut d_obj = BTreeMap::new();
|
|
d_obj.insert(String::from("array"), d_ary);
|
|
d_obj.insert(String::from("something"), Value::String(String::from("else")));
|
|
d_obj.insert(String::from("and"), and_obj);
|
|
Value::Table(d_obj)
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_big_a() {
|
|
test_walk_header_extract_section("a", &create_header_section_a());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_big_b() {
|
|
test_walk_header_extract_section("b", &create_header_section_b());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_big_c() {
|
|
test_walk_header_extract_section("c", &create_header_section_c());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_big_d() {
|
|
test_walk_header_extract_section("d", &create_header_section_d());
|
|
}
|
|
|
|
fn test_walk_header_extract_section(secname: &str, expected: &Value) {
|
|
let tokens = EntryHeader::tokenize(secname, '.').unwrap();
|
|
assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
|
|
assert!(tokens.iter().next().unwrap() == &Token::Key(String::from(secname)),
|
|
"'{}' token was expected, {:?} was parsed", secname, tokens.iter().next());
|
|
|
|
let mut header = create_header();
|
|
let res = EntryHeader::walk_header(&mut header, tokens);
|
|
assert_eq!(expected, res.unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_walk_header_extract_numbers() {
|
|
test_extract_number("a", 0, 0);
|
|
test_extract_number("a", 1, 1);
|
|
test_extract_number("a", 2, 2);
|
|
test_extract_number("a", 3, 3);
|
|
test_extract_number("a", 4, 4);
|
|
test_extract_number("a", 5, 5);
|
|
test_extract_number("a", 6, 6);
|
|
test_extract_number("a", 7, 7);
|
|
test_extract_number("a", 8, 8);
|
|
test_extract_number("a", 9, 9);
|
|
|
|
test_extract_number("c", 0, 1);
|
|
test_extract_number("c", 2, 3);
|
|
}
|
|
|
|
fn test_extract_number(sec: &str, idx: usize, exp: i64) {
|
|
let tokens = EntryHeader::tokenize(&format!("{}.array.{}", sec, idx)[..], '.').unwrap();
|
|
assert!(tokens.len() == 3, "3 token was expected, {} were parsed", tokens.len());
|
|
{
|
|
let mut iter = tokens.iter();
|
|
|
|
let tok = iter.next().unwrap();
|
|
let exp = Token::Key(String::from(sec));
|
|
assert!(tok == &exp, "'{}' token was expected, {:?} was parsed", sec, tok);
|
|
|
|
let tok = iter.next().unwrap();
|
|
let exp = Token::Key(String::from("array"));
|
|
assert!(tok == &exp, "'array' token was expected, {:?} was parsed", tok);
|
|
|
|
let tok = iter.next().unwrap();
|
|
let exp = Token::Index(idx);
|
|
assert!(tok == &exp, "'{}' token was expected, {:?} was parsed", idx, tok);
|
|
}
|
|
|
|
let mut header = create_header();
|
|
let res = EntryHeader::walk_header(&mut header, tokens);
|
|
assert_eq!(&mut Value::Integer(exp), res.unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_header_read() {
|
|
let v = create_header();
|
|
let h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("a") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Array(_))) = h.read("a.array") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.array.1") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.array.9") { true } else { false });
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("c") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Array(_))) = h.read("c.array") { true } else { false });
|
|
assert!(if let Ok(Some(Value::String(_))) = h.read("c.array.1") { true } else { false });
|
|
assert!(if let Ok(None) = h.read("c.array.9") { true } else { false });
|
|
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("d.array.0.d1") { true } else { false });
|
|
assert!(if let Ok(None) = h.read("d.array.0.d2") { true } else { false });
|
|
assert!(if let Ok(None) = h.read("d.array.0.d3") { true } else { false });
|
|
|
|
assert!(if let Ok(None) = h.read("d.array.1.d1") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("d.array.1.d2") { true } else { false });
|
|
assert!(if let Ok(None) = h.read("d.array.1.d3") { true } else { false });
|
|
|
|
assert!(if let Ok(None) = h.read("d.array.2.d1") { true } else { false });
|
|
assert!(if let Ok(None) = h.read("d.array.2.d2") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("d.array.2.d3") { true } else { false });
|
|
|
|
assert!(if let Ok(Some(Value::String(_))) = h.read("d.something") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("d.and") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("d.and.something") { true } else { false });
|
|
assert!(if let Ok(Some(Value::String(_))) = h.read("d.and.something.totally") { true } else { false });
|
|
}
|
|
|
|
#[test]
|
|
fn test_header_set_override() {
|
|
let _ = env_logger::init();
|
|
let v = create_header();
|
|
let mut h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
println!("Testing index 0");
|
|
assert_eq!(h.read("a.array.0").unwrap().unwrap(), Value::Integer(0));
|
|
|
|
println!("Altering index 0");
|
|
assert_eq!(h.set("a.array.0", Value::Integer(42)).unwrap().unwrap(), Value::Integer(0));
|
|
|
|
println!("Values now: {:?}", h);
|
|
|
|
println!("Testing all indexes");
|
|
assert_eq!(h.read("a.array.0").unwrap().unwrap(), Value::Integer(42));
|
|
assert_eq!(h.read("a.array.1").unwrap().unwrap(), Value::Integer(1));
|
|
assert_eq!(h.read("a.array.2").unwrap().unwrap(), Value::Integer(2));
|
|
assert_eq!(h.read("a.array.3").unwrap().unwrap(), Value::Integer(3));
|
|
assert_eq!(h.read("a.array.4").unwrap().unwrap(), Value::Integer(4));
|
|
assert_eq!(h.read("a.array.5").unwrap().unwrap(), Value::Integer(5));
|
|
assert_eq!(h.read("a.array.6").unwrap().unwrap(), Value::Integer(6));
|
|
assert_eq!(h.read("a.array.7").unwrap().unwrap(), Value::Integer(7));
|
|
assert_eq!(h.read("a.array.8").unwrap().unwrap(), Value::Integer(8));
|
|
assert_eq!(h.read("a.array.9").unwrap().unwrap(), Value::Integer(9));
|
|
}
|
|
|
|
#[test]
|
|
fn test_header_set_new() {
|
|
let _ = env_logger::init();
|
|
let v = create_header();
|
|
let mut h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
assert!(h.read("a.foo").is_ok());
|
|
assert!(h.read("a.foo").unwrap().is_none());
|
|
|
|
{
|
|
let v = h.set("a.foo", Value::Integer(42));
|
|
assert!(v.is_ok());
|
|
assert!(v.unwrap().is_none());
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("a") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.foo") { true } else { false });
|
|
}
|
|
|
|
{
|
|
let v = h.set("new", Value::Table(BTreeMap::new()));
|
|
assert!(v.is_ok());
|
|
assert!(v.unwrap().is_none());
|
|
|
|
let v = h.set("new.subset", Value::Table(BTreeMap::new()));
|
|
assert!(v.is_ok());
|
|
assert!(v.unwrap().is_none());
|
|
|
|
let v = h.set("new.subset.dest", Value::Integer(1337));
|
|
assert!(v.is_ok());
|
|
assert!(v.unwrap().is_none());
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("new") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("new.subset") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("new.subset.dest") { true } else { false });
|
|
}
|
|
}
|
|
|
|
|
|
#[test]
|
|
fn test_header_insert_override() {
|
|
let _ = env_logger::init();
|
|
let v = create_header();
|
|
let mut h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
println!("Testing index 0");
|
|
assert_eq!(h.read("a.array.0").unwrap().unwrap(), Value::Integer(0));
|
|
|
|
println!("Altering index 0");
|
|
assert_eq!(h.insert("a.array.0", Value::Integer(42)).unwrap(), false);
|
|
println!("...should have failed");
|
|
|
|
println!("Testing all indexes");
|
|
assert_eq!(h.read("a.array.0").unwrap().unwrap(), Value::Integer(0));
|
|
assert_eq!(h.read("a.array.1").unwrap().unwrap(), Value::Integer(1));
|
|
assert_eq!(h.read("a.array.2").unwrap().unwrap(), Value::Integer(2));
|
|
assert_eq!(h.read("a.array.3").unwrap().unwrap(), Value::Integer(3));
|
|
assert_eq!(h.read("a.array.4").unwrap().unwrap(), Value::Integer(4));
|
|
assert_eq!(h.read("a.array.5").unwrap().unwrap(), Value::Integer(5));
|
|
assert_eq!(h.read("a.array.6").unwrap().unwrap(), Value::Integer(6));
|
|
assert_eq!(h.read("a.array.7").unwrap().unwrap(), Value::Integer(7));
|
|
assert_eq!(h.read("a.array.8").unwrap().unwrap(), Value::Integer(8));
|
|
assert_eq!(h.read("a.array.9").unwrap().unwrap(), Value::Integer(9));
|
|
}
|
|
|
|
#[test]
|
|
fn test_header_insert_new() {
|
|
let _ = env_logger::init();
|
|
let v = create_header();
|
|
let mut h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
assert!(h.read("a.foo").is_ok());
|
|
assert!(h.read("a.foo").unwrap().is_none());
|
|
|
|
{
|
|
let v = h.insert("a.foo", Value::Integer(42));
|
|
assert!(v.is_ok());
|
|
assert_eq!(v.unwrap(), true);
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("a") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.foo") { true } else { false });
|
|
}
|
|
|
|
{
|
|
let v = h.insert("new", Value::Table(BTreeMap::new()));
|
|
assert!(v.is_ok());
|
|
assert_eq!(v.unwrap(), true);
|
|
|
|
let v = h.insert("new.subset", Value::Table(BTreeMap::new()));
|
|
assert!(v.is_ok());
|
|
assert_eq!(v.unwrap(), true);
|
|
|
|
let v = h.insert("new.subset.dest", Value::Integer(1337));
|
|
assert!(v.is_ok());
|
|
assert_eq!(v.unwrap(), true);
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("new") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("new.subset") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("new.subset.dest") { true } else { false });
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_header_delete() {
|
|
let _ = env_logger::init();
|
|
let v = create_header();
|
|
let mut h = match v {
|
|
Value::Table(t) => EntryHeader::from_table(t),
|
|
_ => panic!("create_header() doesn't return a table!"),
|
|
};
|
|
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.read("a") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Array(_))) = h.read("a.array") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.array.1") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(_))) = h.read("a.array.9") { true } else { false });
|
|
|
|
assert!(if let Ok(Some(Value::Integer(1))) = h.delete("a.array.1") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Integer(9))) = h.delete("a.array.8") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Array(_))) = h.delete("a.array") { true } else { false });
|
|
assert!(if let Ok(Some(Value::Table(_))) = h.delete("a") { true } else { false });
|
|
|
|
}
|
|
|
|
}
|
|
|