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-rw-r--r--src/indexedstore.rs77
1 files changed, 0 insertions, 77 deletions
diff --git a/src/indexedstore.rs b/src/indexedstore.rs
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--- a/src/indexedstore.rs
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-//! An indexed, on-disk store for chunks on the server.
-
-use crate::chunk::{DataChunk, GenerationChunkError};
-use crate::chunkid::ChunkId;
-use crate::chunkmeta::ChunkMeta;
-use crate::index::{Index, IndexError};
-use crate::store::{Store, StoreError};
-use std::path::Path;
-
-/// A store for chunks and their metadata.
-///
-/// This combines Store and Index into one interface to make it easier
-/// to handle the server side storage of chunks.
-pub struct IndexedStore {
- store: Store,
- index: Index,
-}
-
-/// All the errors that may be returned for `IndexStore`.
-#[derive(Debug, thiserror::Error)]
-pub enum IndexedError {
- /// An error from Index.
- #[error(transparent)]
- IndexError(#[from] IndexError),
-
- /// Error regarding generation chunks.
- #[error(transparent)]
- GenerationChunkError(#[from] GenerationChunkError),
-
- /// An error from Store.
- #[error(transparent)]
- SqlError(#[from] StoreError),
-}
-
-impl IndexedStore {
- /// Create a new indexed store.
- pub fn new(dirname: &Path) -> Result<Self, IndexedError> {
- let store = Store::new(dirname);
- let index = Index::new(dirname)?;
- Ok(Self { store, index })
- }
-
- /// Save a chunk in the store.
- pub fn save(&mut self, chunk: &DataChunk) -> Result<ChunkId, IndexedError> {
- let id = ChunkId::new();
- self.store.save(&id, chunk)?;
- self.insert_meta(&id, chunk.meta())?;
- Ok(id)
- }
-
- fn insert_meta(&mut self, id: &ChunkId, meta: &ChunkMeta) -> Result<(), IndexedError> {
- self.index.insert_meta(id.clone(), meta.clone())?;
- Ok(())
- }
-
- /// Get a chunk from the store, given its id.
- pub fn load(&self, id: &ChunkId) -> Result<(DataChunk, ChunkMeta), IndexedError> {
- Ok((self.store.load(id)?, self.load_meta(id)?))
- }
-
- /// Get a chunk's metadata form the store, given its id.
- pub fn load_meta(&self, id: &ChunkId) -> Result<ChunkMeta, IndexedError> {
- Ok(self.index.get_meta(id)?)
- }
-
- /// Find chunks with a client-assigned label.
- pub fn find_by_label(&self, label: &str) -> Result<Vec<ChunkId>, IndexedError> {
- Ok(self.index.find_by_label(label)?)
- }
-
- /// Remove a chunk from the store.
- pub fn remove(&mut self, id: &ChunkId) -> Result<(), IndexedError> {
- self.index.remove_meta(id)?;
- self.store.delete(id)?;
- Ok(())
- }
-}