Struct CorpusIndexImpl 

pub struct CorpusIndexImpl { /* private fields */ }

In-memory corpus index backed by a HashMap<file_hash, CorpusEntry>.

Search uses a linear scan with Hamming distance — sufficient for corpora up to ~100 K images. Interior mutability via RefCell keeps the port trait’s &self receiver while allowing mutation during add_to_index and build_index.

Implementations

impl CorpusIndexImpl

pub fn new() -> Self

Create an empty corpus index.

pub fn len(&self) -> usize

Return the number of entries currently in the index.

pub fn is_empty(&self) -> bool

Return true if the index contains no entries.

impl CorpusIndexImpl

pub fn add_entry_with_key(&self, entry: CorpusEntry)

Insert a pre-built CorpusEntry that already carries a SpectralKey. Used by higher-level pipelines that have already decoded the image and run spectral analysis.

Trait Implementations

impl CorpusIndex for CorpusIndexImpl

fn search( &self, payload: &Payload, _technique: StegoTechnique, max_results: usize, ) -> Result<Vec<CorpusEntry>, CorpusError>

Search the index for covers whose natural bit pattern already encodes (or closely encodes) payload using technique.

fn add_to_index(&self, path: &Path) -> Result<CorpusEntry, CorpusError>

Add the file at path to the index, computing its bit-pattern fingerprint.

fn build_index(&self, corpus_dir: &Path) -> Result<usize, CorpusError>

Scan corpus_dir recursively and build the full index.

fn search_for_model( &self, payload: &Payload, model_id: &str, resolution: (u32, u32), max_results: usize, ) -> Result<Vec<CorpusEntry>, CorpusError>

Search the index for covers that match payload and have a spectral_key whose model_id and resolution match the supplied values.

fn model_stats(&self) -> Vec<(SpectralKey, usize)>

Return a sorted list of (SpectralKey, count) pairs describing how many corpus entries are indexed per model/resolution combination.

impl Default for CorpusIndexImpl

fn default() -> Self

Returns the “default value” for a type.