Skeleton for metadata service (#398)

Summary:
Pull Request resolved: #398

This will be used to upload and host checksum data for now, and could be extended to hosting other data in the future.

Differential Revision: D38516464

fbshipit-source-id: d239af1ebae21856c2fb800b81224e7f32a2d814

onedocker/repository/onedocker_metadata_service.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+from typing import Any, Dict
+
+from fbpcp.service.storage import StorageService
+from onedocker.entity.object_metadata import PackageMetadata
+
+
+class OneDockerMetadataService:
+    def __init__(
+        self,
+        storage_svc: StorageService,
+    ) -> None:
+        self.storage_svc = storage_svc
+
+    def set_metadata(self, package_path: str, metadata_dict: Dict[Any, Any]) -> None:
+        raise NotImplementedError
+
+    def get_metadata(self, package_path: str) -> PackageMetadata:
+        raise NotImplementedError

onedocker/repository/onedocker_repository_service.py

@@ -4,10 +4,11 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
-from typing import Optional
+from typing import Any, Dict, Optional
 
 from fbpcp.service.storage import StorageService
 from onedocker.entity.object_metadata import PackageMetadata
+from onedocker.repository.onedocker_metadata_service import OneDockerMetadataService
 from onedocker.repository.onedocker_package import OneDockerPackageRepository
 
 DEFAULT_PROD_VERSION = "latest"
@@ -23,6 +24,7 @@ def __init__(
         self.package_repo = OneDockerPackageRepository(
             storage_svc, package_repository_path
         )
+        self.metadata_svc = OneDockerMetadataService(storage_svc)
 
     def upload(
         self,
@@ -46,17 +48,18 @@ def _set_metadata(
         self,
         package_name: str,
         version: str,
-        metadata: PackageMetadata,
+        metadata_dict: Dict[Any, Any],
     ) -> None:
-        # TODO: T127441856 handle storing metadata
-        raise NotImplementedError
+        path = self.package_repo._build_package_path(package_name, version)
+        self.metadata_svc.set_metadata(path, metadata_dict)
 
     def _get_metadata(
         self,
         package_name: str,
         version: str,
     ) -> PackageMetadata:
-        raise NotImplementedError
+        path = self.package_repo._build_package_path(package_name, version)
+        return self.metadata_svc.get_metadata(path)
 
     def archive_package(self, package_name: str, version: str) -> None:
         # TODO: Archive or delete checksum file associated with the archived package if exists.

onedocker/tests/repository/test_onedocker_metadata_service.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+
+import unittest
+from unittest.mock import patch
+
+from onedocker.repository.onedocker_metadata_service import OneDockerMetadataService
+
+
+class TestOneDockerMetadataService(unittest.TestCase):
+    @patch("onedocker.repository.onedocker_metadata_service.StorageService")
+    def setUp(self, mockStorageService):
+        self.metadata_svc = OneDockerMetadataService(mockStorageService)
+
+    def test_set_metadata(self):
+        pass
+
+    def test_get_metadata(self):
+        pass

onedocker/tests/repository/test_onedocker_repository_service.py

@@ -4,6 +4,8 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
+import json
+
 import unittest
 from unittest.mock import MagicMock, patch
 
@@ -18,17 +20,21 @@ class TestOneDockerRepositoryService(unittest.TestCase):
     TEST_PACKAGE_NAME = TEST_PACKAGE_PATH.split("/")[-1]
     TEST_PACKAGE_VERSION = "1.0"
 
+    @patch("onedocker.repository.onedocker_repository_service.OneDockerMetadataService")
     @patch(
         "onedocker.repository.onedocker_repository_service.OneDockerPackageRepository"
     )
-    @patch("fbpcp.service.storage_s3.S3StorageService")
-    def setUp(self, mockStorageService, mockPackageRepoCall) -> None:
+    @patch("onedocker.repository.onedocker_repository_service.StorageService")
+    def setUp(self, mockStorageService, mockPackageRepo, mockMetadataService) -> None:
         package_repo_path = "/package_repo_path/"
         self.package_repo = MagicMock()
-        mockPackageRepoCall.return_value = self.package_repo
+        self.metadata_svc = MagicMock()
+        mockPackageRepo.return_value = self.package_repo
+        mockMetadataService.return_value = self.metadata_svc
         self.repo_service = OneDockerRepositoryService(
             mockStorageService, package_repo_path
         )
+        self.storage_svc = mockStorageService
 
     def test_onedocker_repo_service_upload(self) -> None:
         # Arrange
@@ -85,3 +91,30 @@ def test_onedocker_repo_service_upload_to_latest(self) -> None:
         self.package_repo.upload.assert_called_with(
             self.TEST_PACKAGE_PATH, DEFAULT_PROD_VERSION, source_path
         )
+
+    def test_onedocker_repo_service_set_metadata(self) -> None:
+        # Arrange
+        metadata_dict = {"checksum": "checksum_data", "not_a_valid_field": "some_data"}
+        path = "test_metadata_path"
+        self.package_repo._build_package_path.return_value = path
+        # Act
+        self.repo_service._set_metadata(
+            self.TEST_PACKAGE_NAME, self.TEST_PACKAGE_VERSION, metadata_dict
+        )
+        # Assert
+        self.metadata_svc.set_metadata.assert_called_once_with(path, metadata_dict)
+
+    def test_onedocker_repo_service_get_metadata(self) -> None:
+        # Arrange
+        metadata_dict = {"checksum": "checksum_data"}
+        metadata_json = json.dumps(metadata_dict)
+        path = "test_metadata_path"
+        self.package_repo._build_package_path.return_value = path
+        self.storage_svc.read.return_value = metadata_json
+        # Act
+        self.repo_service._get_metadata(
+            self.TEST_PACKAGE_NAME, self.TEST_PACKAGE_VERSION
+        )
+        # Assert
+        self.metadata_svc.get_metadata.assert_called_once_with(path)
+        # TODO: add result validation after implementing get_metadata