haystack/examples/pipelines/indexing_pipeline_with_meta.py
Massimiliano Pippi e1ec4e5e4d
refact!: Remove symbols under the haystack.document_stores namespace (#6714)
* remove symbols under the haystack.document_stores namespace

* Update haystack/document_stores/types/protocol.py

Co-authored-by: Silvano Cerza <3314350+silvanocerza@users.noreply.github.com>

* fix

* same for retrievers

* leftovers

* more leftovers

* add relnote

* leftovers

* one more

* fix examples

---------

Co-authored-by: Silvano Cerza <3314350+silvanocerza@users.noreply.github.com>
2024-01-10 21:20:42 +01:00

45 lines
2.1 KiB
Python

from typing import Dict, Any
from pathlib import Path
from datetime import datetime
from haystack import Pipeline
from haystack.components.others import Multiplexer
from haystack.components.converters import PyPDFToDocument, TextFileToDocument
from haystack.components.preprocessors import DocumentCleaner, DocumentSplitter
from haystack.components.routers import FileTypeRouter
from haystack.components.joiners import DocumentJoiner
from haystack.components.writers import DocumentWriter
from haystack.document_stores.in_memory import InMemoryDocumentStore
document_store = InMemoryDocumentStore()
p = Pipeline()
p.add_component(instance=FileTypeRouter(mime_types=["text/plain", "application/pdf"]), name="file_type_router")
p.add_component(instance=Multiplexer(Dict[str, Any]), name="metadata_multiplexer")
p.add_component(instance=TextFileToDocument(), name="text_file_converter")
p.add_component(instance=PyPDFToDocument(), name="pdf_file_converter")
p.add_component(instance=DocumentJoiner(), name="joiner")
p.add_component(instance=DocumentCleaner(), name="cleaner")
p.add_component(instance=DocumentSplitter(split_by="sentence", split_length=250, split_overlap=30), name="splitter")
p.add_component(instance=DocumentWriter(document_store=document_store), name="writer")
p.connect("file_type_router.text/plain", "text_file_converter.sources")
p.connect("file_type_router.application/pdf", "pdf_file_converter.sources")
p.connect("metadata_multiplexer", "text_file_converter.meta")
p.connect("metadata_multiplexer", "pdf_file_converter.meta")
p.connect("text_file_converter.documents", "joiner.documents")
p.connect("pdf_file_converter.documents", "joiner.documents")
p.connect("joiner.documents", "cleaner.documents")
p.connect("cleaner.documents", "splitter.documents")
p.connect("splitter.documents", "writer.documents")
result = p.run(
{
"file_type_router": {"sources": list(Path(".").iterdir())},
"metadata_multiplexer": {"value": {"date_added": datetime.now().isoformat()}},
}
)
assert all("date_added" in doc.meta for doc in document_store.filter_documents())