Parser factory chooses parser class based on filepath 🟥

backend/condition/parsing/factory.py

@@ -0,0 +1,4 @@
+from backend.condition.parsing.parser import Parser
+
+def select_parser(filepath: str) -> Parser:
+    raise NotImplementedError

backend/condition/parsing/lbwf_parser.py

@@ -0,0 +1,8 @@
+from typing import BinaryIO, Any
+
+from backend.condition.parsing.parser import Parser
+
+class LbwfParser(Parser):
+
+    def parse(self, file_stream: BinaryIO) -> Any:
+        raise NotImplementedError

backend/condition/parsing/parser.py

@@ -0,0 +1,8 @@
+from abc import ABC, abstractmethod
+from typing import BinaryIO, Any
+
+class Parser(ABC):
+
+    @abstractmethod
+    def parse(self, file_stream: BinaryIO) -> Any:
+        pass

backend/condition/processor.py

@@ -3,4 +3,10 @@ from typing import BinaryIO, List
 from utils.logger import setup_logger
 
 def process_file(file_stream: BinaryIO, source_key: str) -> None:
-    print(f"[processor] Received file: {source_key}")
+    print(f"[processor] Received file: {source_key}")
+
+    # Instantiation
+    
+
+    # Orchestration
+

backend/condition/tests/parsing/test_parsing_factory.py

@@ -0,0 +1,12 @@
+from backend.condition.parsing.factory import select_parser
+
+def test_selects_lbwf_parser():
+    # arrange
+    file_path_str = "uploads/lbwf/Example Asset Data.xlsx"
+    expected_class_name = "LbwfParser"
+
+    # act
+    actual_class_name = select_parser(file_path_str).__class__.__name__
+
+    # assert
+    assert expected_class_name == actual_class_name

pytest.ini

@@ -1,4 +1,4 @@
 [pytest]
 pythonpath = .
 addopts = --cov-report term-missing --cov=etl/epc --cov=recommendations --cov=backend --cov=etl/epc_clean --cov=etl/spatial
-testpaths = recommendations/tests backend/tests etl/epc/tests etl/epc_clean/tests etl/spatial/tests
+testpaths = recommendations/tests backend/tests etl/epc/tests etl/epc_clean/tests etl/spatial/tests backend/condition/tests