Merge pull request #7 from IBM/notebooks

Notebooks

doframework/core/storage.py

@@ -15,6 +15,8 @@
 #
 
 from dataclasses import dataclass, field
+from typing import Optional
+from itertools import islice
 import os
 import json
 from pathlib import Path
@@ -151,4 +153,27 @@ def count(self,bucket,extension):
             objects = [f for f in Path(bucket).rglob('*') if Path(f).suffix in [f'.{extension}']]
             n = len(objects)
 
-        return n
+        return n
+
+    def get_all(self,bucket,extension,limit: Optional[int]=None):        
+        assert bucket in self.storage_buckets.values(), \
+        'The bucket you provided is not on the storage bucket list. Find the list by running storage.buckets().'
+        assert extension in ['json','csv'], \
+        'get_all method retrieves either json or csv files in given bucket. provide either extension=`json` or extension=`csv`.'
+
+        objects = []
+
+        if bucket in self.storage_buckets.values():       
+            if 's3' in self.configs:
+                if limit:
+                    objects = [f for f in _get_s3_object(self.configs).Bucket(bucket).objects.all().limit(limit) if f.key.endswith(extension)]
+                else:
+                    objects = [f for f in _get_s3_object(self.configs).Bucket(bucket).objects.all() if f.key.endswith(extension)]
+            if 'local' in self.configs:
+                if limit:
+                    objects = [f for f in islice(Path(bucket).iterdir(),limit) if Path(f).suffix in [f'.{extension}']]
+                else:
+                    objects = [f for f in Path(bucket).rglob('*') if Path(f).suffix in [f'.{extension}']]
+
+        return objects
+