adding debug logs

scan_explorer_service/manifest_factory.py

@@ -3,6 +3,7 @@
 from scan_explorer_service.models import Article, Page, Collection
 from typing import Union
 from itertools import chain
+from scan_explorer_service.views.view_utils import logger
 
 class ManifestFactoryExtended(ManifestFactory):
     """ Extended manifest factory.
@@ -12,30 +13,37 @@ class ManifestFactoryExtended(ManifestFactory):
     """
 
     def create_manifest(self, item: Union[Article, Collection]):
+        logger.debug(f"Creating manifest for item: {item}") 
         manifest = self.manifest(
             ident=f'{item.id}/manifest.json', label=item.id)
         manifest.description = item.id
         manifest.add_sequence(self.create_sequence(item))
         for range in self.create_range(item):
             manifest.add_range(range)
-
+        logger.debug(f"Manifest created: {manifest}") 
         return manifest
 
     def create_sequence(self, item: Union[Article, Collection]):
+        logger.debug(f"Creating sequence for item: {item}") 
         sequence: Sequence = self.sequence()
+        logger.debug(f"Sequence is: {sequence}. Adding canvases to sequence.") 
         for page in item.pages:
+            logger.debug(f"Adding canvas to sequence: {page}.") 
             sequence.add_canvas(self.get_or_create_canvas(page))
-
+
+        logger.debug(f"Final sequence created: {sequence}") 
         return sequence
 
     def create_range(self, item: Union[Article, Collection]):
+        logger.debug(f"Creating range for item: {item}") 
         if isinstance(item, Collection):
             return list(chain(*[self.create_range(article) for article in item.articles]))
 
         range: Range = self.range(ident=item.bibcode, label=item.bibcode)
         for page in item.pages:
+            logger.debug(f"Adding canvas to range: {page}.") 
             range.add_canvas(self.get_or_create_canvas(page))
-
+        logger.debug(f"Range created: {[range]}") 
         return [range]
 
     def get_canvas_dict(self) -> Dict[str, Canvas]:
@@ -44,6 +52,7 @@ def get_canvas_dict(self) -> Dict[str, Canvas]:
         return self.canvas_dict
 
     def get_or_create_canvas(self, page: Page):
+        logger.debug(f"Getting or creating canvas for page: {page}") 
         canvas_dict = self.get_canvas_dict()
         if(page.id in canvas_dict.keys()):
             return canvas_dict[page.id]
@@ -61,24 +70,29 @@ def get_or_create_canvas(self, page: Page):
         annotation.on = canvas.id
         canvas.add_annotation(annotation)
         canvas_dict[page.id] = canvas
+
+        logger.debug(f"Canvas created: {canvas}") 
         return canvas
 
     def create_image_annotation(self, page: Page):
+        logger.debug(f"Creating image annotation for page: {page}") 
         annotation: Annotation = self.annotation(ident=str(page.id))
         image: Image = annotation.image(
             ident=page.image_path, label=f'p. {page.label}', iiif=True)
 
         # Override default image quality and format set by prezi
         image.id = image.id.replace(f'/default.jpg', f'/{page.image_color_quality}.tif')
-
+        logger.debug(f"Image id: {image.id}") 
         image.format = page.format
         image.height = page.height
         image.width = page.width
-
+        logger.debug(f"Image annotation created: {annotation}") 
         return annotation
 
     def add_search_service(self, manifest: Manifest, search_url: str):
+        logger.debug(f"Adding search services for manifest {manifest} and search url {search_url}") 
         context = 'http://iiif.io/api/search/1/context.json'
         profile = 'http://iiif.io/api/search/1/search'
 
         manifest.add_service(ident=search_url, context=context, profile=profile)
+        logger.debug(f"Adding search services for manifest {manifest} and search url {search_url}") 

scan_explorer_service/utils/utils.py

@@ -1,12 +1,16 @@
 
 from flask import current_app, url_for
+from scan_explorer_service.views.view_utils import logger
+
 
 def url_for_proxy(endpoint: str, **values):
     values['_external'] = False
 
     server, prefix = proxy_url()
+    logger.debug(f"Server is {server} and prefix is {prefix}.") 
     path = url_for(endpoint, **values).lstrip('/')
 
+    logger.debug(f"Url is {server}/{prefix}/{path}.") 
     return f'{server}/{prefix}/{path}'
 
 def proxy_url():

scan_explorer_service/views/manifest.py

@@ -7,6 +7,7 @@
 from scan_explorer_service.open_search import EsFields, text_search_highlight
 from scan_explorer_service.utils.utils import proxy_url, url_for_proxy
 from typing import Union
+from scan_explorer_service.views.view_utils import logger
 
 
 bp_manifest = Blueprint('manifest', __name__, url_prefix='/manifest')
@@ -26,18 +27,26 @@ def before_request():
 @bp_manifest.route('/<string:id>/manifest.json', methods=['GET'])
 def get_manifest(id: str):
     """ Creates an IIIF manifest from an article or Collection"""
+
+    logger.debug(f"Fetching manifest for item with id : {id}") 
     with current_app.session_scope() as session:
+        logger.debug(f"Fetching item (Article/Collection).") 
         item: Union[Article, Collection] = (
             session.query(Article).filter(Article.id == id).one_or_none()
             or session.query(Collection).filter(Collection.id == id).one_or_none())
 
         if item:
+            logger.debug(f"Item successfully fetched. Creating manifest for item: {item}") 
             manifest = manifest_factory.create_manifest(item)
+            logger.debug(f"Getting url for proxy for endpoint manifest.search and id {id}") 
             search_url = url_for_proxy('manifest.search', id=id)
+            logger.debug(f"Getting url for proxy for endpoint manifest.search and id {id}")  
             manifest_factory.add_search_service(manifest, search_url)
+            logger.debug(f"Manifest generated successfully for ID: {id}")
 
             return manifest.toJSON(top=True)
         else:
+            logger.debug(f"Item not found for article with id: {id}") 
             return jsonify(exception='Article not found'), 404
 
 

scan_explorer_service/views/view_utils.py

@@ -1,4 +1,14 @@
 import enum
+import os
+from adsmutils import setup_logging, load_config
+
+# ============================= INITIALIZATION ==================================== #
+
+proj_home = os.path.realpath(os.path.dirname(__file__))
+config = load_config(proj_home=proj_home)
+logger = setup_logging('view_utils.py', proj_home=proj_home,
+                        level=config.get('LOGGING_LEVEL', 'DEBUG'),
+                        attach_stdout=config.get('LOG_STDOUT', False))
 
 class ApiErrors(enum.Enum):
     SearchError = 1