trustgraph/trustgraph-flow/trustgraph/librarian/librarian.py
2025-05-04 19:52:13 +01:00

106 lines
3 KiB
Python

from .. schema import LibrarianRequest, LibrarianResponse, Error, Triple
from .. knowledge import hash
from .. exceptions import RequestError
from . table_store import TableStore
from . blob_store import BlobStore
import base64
import uuid
class Librarian:
def __init__(
self,
cassandra_host, cassandra_user, cassandra_password,
minio_host, minio_access_key, minio_secret_key,
bucket_name, keyspace, load_document, load_text,
):
self.blob_store = BlobStore(
minio_host, minio_access_key, minio_secret_key, bucket_name
)
self.table_store = TableStore(
cassandra_host, cassandra_user, cassandra_password, keyspace
)
self.load_document = load_document
self.load_text = load_text
async def add_document(self, request):
if request.document_metadata.kind not in (
"text/plain", "application/pdf"
):
raise RequestError(
"Invalid document kind: " + request.document_metadata.kind
)
if self.table_store.document_exists(
request.document_metadata.user,
request.document_metadata.id
):
raise RuntimeError("Document already exists")
# Create object ID for blob
object_id = uuid.uuid4()
self.blob_store.add(object_id, base64.b64decode(request.content),
request.document_metadata.kind)
self.table_store.add_document(request.document_metadata, object_id)
# if document.kind == "application/pdf":
# await self.load_document(document)
# elif document.kind == "text/plain":
# await self.load_text(document)
print("Add complete", flush=True)
return LibrarianResponse(
error = None,
document_metadata = None,
content = None,
document_metadatas = None,
processing_metadatas = None,
)
async def remove_document(self, request):
raise RuntimeError("Not implemented")
async def update_document(self, request):
raise RuntimeError("Not implemented")
async def get_document_metadata(self, request):
raise RuntimeError("Not implemented")
async def get_document_content(self, request):
raise RuntimeError("Not implemented")
async def add_processing(self, request):
raise RuntimeError("Not implemented")
async def remove_processing(self, request):
raise RuntimeError("Not implemented")
async def list_documents(self, request):
raise RuntimeError("Not implemented")
async def list_processing(self, request):
raise RuntimeError("Not implemented")
async def list(self, user, collection):
raise RuntimeError("Not implemented")
info = self.table_store.list(user, collection)
print(">>", info)
return LibrarianResponse(
error = None,
document = None,
info = info,
)