PersistStateUtils

Utility class for managing state persistence.

Features:

  • Memoized storage instances per (signalId, bucketName) pair
  • Custom adapter support
  • Atomic read/write operations

Storage layout: ./dump/state/<signalId>/<bucketName>.json

Used by StatePersistInstance for crash-safe state persistence.

constructor();
PersistStateInstanceCtor: any

Constructor used to create per-context state instances. Replaceable via usePersistStateAdapter() / useJson() / useDummy().

getStateStorage: any

Memoized factory creating one IPersistStateInstance per (signalId, bucketName) pair.

waitForInit: (signalId: string, bucketName: string, initial: boolean) => Promise<void>

Initializes the state storage for the given context. Skips initialization when initial is false (used to gate first-time setup).

readStateData: (signalId: string, bucketName: string) => Promise<StateData>

Reads persisted state for the given context. Lazily initializes the instance on first access.

writeStateData: (data: StateData, signalId: string, bucketName: string, when: Date) => Promise<void>

Writes state for the given context. Lazily initializes the instance on first access.

useDummy: () => void

Switches to PersistStateDummyInstance (all operations are no-ops).

useJson: () => void

Switches to the default file-based PersistStateInstance.

clear: () => void

Clears the memoized instance cache. Call when process.cwd() changes between strategy iterations.

dispose: (signalId: string, bucketName: string) => void

Drops the memoized instance for the given context. Call when a signal is removed to clean up its associated storage entry.

usePersistStateAdapter(Ctor: TPersistStateInstanceCtor): void;

Registers a custom IPersistStateInstance constructor. Clears the memoization cache so subsequent calls use the new adapter.