Struct FsLoader 

pub struct FsLoader { /* private fields */ }

File-system loader.

This is a special JSON-LD document loader that can load document from the file system by attaching a directory to specific URLs.

Loaded documents are not cached: a new file system read is made each time an URL is loaded even if it has already been queried before.

Implementations

impl FsLoader

pub fn new() -> Self

Creates a new file system loader with the given content parser.

pub fn mount<P: AsRef<Path>>(&mut self, url: IriBuf, path: P)

Bind the given IRI prefix to the given path.

Any document with an IRI matching the given prefix will be loaded from the referenced local directory.

pub fn filepath(&self, url: Iri<&str>) -> Option<PathBuf>

Returns the local file path associated to the given url if any.

The URL must match a mount point at a path boundary (mounting http://example.com/a does not capture http://example.com/abc), and the path is built only from single normal components: URLs containing . or .. segments (or segments the platform would split further, like \ on Windows) return None.

This bounds the constructed path to the mounted directory. It does not follow the file system: a symbolic link inside the mount can still point outside it, so mount only directories whose contents you trust.

Trait Implementations

impl Default for FsLoader

fn default() -> Self

Returns the “default value” for a type.

impl Loader for FsLoader

type Error = Error

Loader-specific error type.

async fn load( &self, url: Iri<&str>, ) -> Result<RemoteDocument<IriBuf>, LoadError<Self::Error>>

Loads the document behind the given IRI.

async fn load_with<V>( &self, vocabulary: &mut V, url: V::Iri, ) -> LoadingResult<V::Iri, Self::Error>

where V: IriVocabularyMut, V::Iri: Clone + Eq + Hash,

Loads the document behind the given IRI, using the given vocabulary.