Files
Borealis-Github-Replica/Data/Engine/services/assemblies/serialization.py

241 lines
7.9 KiB
Python

# ======================================================
# Data\Engine\services\assemblies\serialization.py
# Description: Converts assembly records to and from legacy JSON documents for import/export.
#
# API Endpoints (if applicable): None
# ======================================================
"""Legacy assembly serialization helpers."""
from __future__ import annotations
import json
from typing import Any, Dict, Mapping, Optional, Tuple, Union
from ...assembly_management.models import AssemblyDomain, AssemblyRecord
MAX_DOCUMENT_BYTES = 1_048_576 # 1 MiB safety limit for import payloads
class AssemblySerializationError(ValueError):
"""Raised when legacy assembly serialization/deserialization fails."""
LegacyDocument = Dict[str, Any]
def record_to_legacy_payload(
record: AssemblyRecord,
*,
domain: AssemblyDomain,
payload_text: str,
) -> Dict[str, Any]:
"""Convert an assembly record into an export-friendly legacy JSON payload."""
payload_body: Union[LegacyDocument, str]
try:
payload_body = json.loads(payload_text)
except json.JSONDecodeError:
payload_body = payload_text
return {
"assembly_guid": record.assembly_guid,
"domain": domain.value,
"assembly_kind": record.assembly_kind,
"assembly_type": record.assembly_type,
"version": record.version,
"display_name": record.display_name,
"summary": record.summary,
"category": record.category,
"metadata": dict(record.metadata or {}),
"tags": dict(record.tags or {}),
"payload": payload_body,
"payload_type": record.payload.payload_type.value,
"payload_guid": record.payload.assembly_guid,
"payload_checksum": record.payload.checksum,
"created_at": record.created_at.isoformat(),
"updated_at": record.updated_at.isoformat(),
}
def prepare_import_request(
document: Union[str, Mapping[str, Any]],
*,
domain: AssemblyDomain,
assembly_guid: Optional[str] = None,
metadata_override: Optional[Mapping[str, Any]] = None,
tags_override: Optional[Mapping[str, Any]] = None,
) -> Tuple[str, Dict[str, Any]]:
"""
Validate a legacy assembly document and convert it into a runtime payload suitable
for AssemblyRuntimeService create/update calls.
Returns the resolved assembly GUID plus the payload dictionary to pass into the runtime service.
"""
payload_json = _coerce_document(document)
_enforce_size_limit(payload_json)
assembly_kind = _infer_kind(payload_json)
if assembly_kind == "unknown":
raise AssemblySerializationError("Unable to determine assembly kind from legacy JSON document.")
metadata = _metadata_from_document(assembly_kind, payload_json, source_path=None)
if metadata_override:
metadata.update({k: v for k, v in metadata_override.items() if v is not None})
tags = dict(tags_override or {})
display_name = _coerce_str(
metadata.get("display_name")
or payload_json.get("name")
or payload_json.get("tab_name")
or "Imported Assembly"
)
summary = _coerce_optional_str(metadata.get("summary") or payload_json.get("description"))
category = _coerce_optional_str(metadata.get("category") or payload_json.get("category"))
assembly_type = _coerce_optional_str(metadata.get("assembly_type") or payload_json.get("type"))
version = _coerce_positive_int(payload_json.get("version"), default=1)
resolved_guid = _coerce_guid(assembly_guid)
payload = {
"assembly_guid": resolved_guid,
"domain": domain.value,
"assembly_kind": assembly_kind,
"display_name": display_name,
"summary": summary,
"category": category,
"assembly_type": assembly_type,
"version": version,
"metadata": metadata,
"tags": tags,
"payload": payload_json,
}
return resolved_guid, payload
# ----------------------------------------------------------------------
# Helpers
# ----------------------------------------------------------------------
def _coerce_document(document: Union[str, Mapping[str, Any]]) -> LegacyDocument:
if isinstance(document, Mapping):
return dict(document)
if isinstance(document, str):
try:
value = json.loads(document)
except json.JSONDecodeError as exc:
raise AssemblySerializationError("Import document is not valid JSON.") from exc
if not isinstance(value, Mapping):
raise AssemblySerializationError("Import document must decode to a JSON object.")
return dict(value)
raise AssemblySerializationError("Import document must be a JSON object or string.")
def _enforce_size_limit(document: Mapping[str, Any]) -> None:
encoded = json.dumps(document, separators=(",", ":")).encode("utf-8")
if len(encoded) > MAX_DOCUMENT_BYTES:
raise AssemblySerializationError(
f"Import document exceeds maximum allowed size of {MAX_DOCUMENT_BYTES} bytes."
)
def _infer_kind(document: Mapping[str, Any]) -> str:
kind_hint = _coerce_optional_str(document.get("assembly_kind") or document.get("kind"))
if kind_hint:
lowercase = kind_hint.lower()
if lowercase in {"script", "workflow", "ansible"}:
return lowercase
if "nodes" in document and "edges" in document:
return "workflow"
if "script" in document:
return "script"
if "playbook" in document or "tasks" in document or "roles" in document:
return "ansible"
return "unknown"
def _metadata_from_document(kind: str, document: Mapping[str, Any], source_path: Optional[str]) -> Dict[str, Any]:
metadata: Dict[str, Any] = {
"source_path": source_path,
"display_name": None,
"summary": None,
"category": None,
"assembly_type": None,
}
if kind == "workflow":
metadata.update(
{
"display_name": document.get("tab_name") or document.get("name"),
"summary": document.get("description"),
"category": "workflow",
"assembly_type": "workflow",
}
)
elif kind == "script":
metadata.update(
{
"display_name": document.get("name") or document.get("display_name"),
"summary": document.get("description"),
"category": (document.get("category") or "script"),
"assembly_type": (document.get("type") or "powershell"),
}
)
elif kind == "ansible":
metadata.update(
{
"display_name": document.get("name") or document.get("display_name"),
"summary": document.get("description"),
"category": "ansible",
"assembly_type": "ansible",
}
)
# Carry additional legacy fields through metadata for round-trip fidelity.
for key in ("sites", "variables", "files", "timeout_seconds", "script_encoding"):
if key in document:
metadata[key] = document[key]
metadata = {key: value for key, value in metadata.items() if value is not None}
return metadata
def _coerce_guid(value: Optional[str]) -> Optional[str]:
if value is None:
return None
text = str(value).strip()
return text or None
def _coerce_str(value: Any, default: str = "") -> str:
if value is None:
return default
text = str(value).strip()
return text if text else default
def _coerce_optional_str(value: Any) -> Optional[str]:
if value is None:
return None
text = str(value).strip()
return text or None
def _coerce_positive_int(value: Any, *, default: int) -> int:
try:
candidate = int(value)
if candidate > 0:
return candidate
except (TypeError, ValueError):
pass
return default
__all__ = [
"AssemblySerializationError",
"MAX_DOCUMENT_BYTES",
"prepare_import_request",
"record_to_legacy_payload",
]