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Excititor VEX Evidence Chunk Service

Module

Excititor

Status

IMPLEMENTED

Description

Chunked evidence service for VEX data that splits large evidence payloads into manageable chunks for API transport and storage.

Implementation Details

  • Modules: src/Excititor/StellaOps.Excititor.WebService/Services/, src/Excititor/StellaOps.Excititor.WebService/Endpoints/
  • Key Classes:
    • VexEvidenceChunkService (src/Excititor/StellaOps.Excititor.WebService/Services/VexEvidenceChunkService.cs) - splits large VEX evidence payloads into chunks for transport
    • EvidenceEndpoints (src/Excititor/StellaOps.Excititor.WebService/Endpoints/EvidenceEndpoints.cs) - REST endpoints for evidence chunk operations
    • VexEvidenceChunkContracts (src/Excititor/StellaOps.Excititor.WebService/Contracts/VexEvidenceChunkContracts.cs) - API contracts for evidence chunks
    • VexEvidenceContracts (src/Excititor/StellaOps.Excititor.WebService/Contracts/VexEvidenceContracts.cs) - API contracts for evidence data
  • Interfaces: None (uses concrete service)
  • Source: Sprints 0119 (batch_14/file_19.md)

E2E Test Plan

  • Submit a large VEX evidence payload and verify VexEvidenceChunkService splits it into chunks within size limits
  • Retrieve chunked evidence via EvidenceEndpoints and verify all chunks can be reassembled into the original payload
  • Verify chunk ordering is preserved and each chunk includes a sequence number
  • Verify VexEvidenceChunkContracts response includes chunk count and total size metadata
  • Verify chunked transport handles partial failures gracefully (retry individual chunks)
  • Verify large evidence payloads (>10MB) are chunked without memory issues