erp5_wendelin_data_lake_ingestion: refactor get data stream script

queries
- new script to get data set number of files

bt5/erp5_wendelin_data_lake_ingestion/SkinTemplateItem/portal_skins/erp5_wendelin_data_lake/ERP5Site_getDataStreamCount.py

+"""
+This script is called from ebulk client to get count of Data Streams for a Data set.
+"""
+from erp5.component.module.Log import log
+
+portal = context.getPortalObject()
+
+try:
+  data_set = portal.data_set_module.get(data_set_reference)
+  if data_set is None or data_set.getReference().endswith("_invalid"):
+    return { "status_code": 0, "result": 0 }
+except Exception as e:
+  log("Unauthorized access to getDataStreamList: " + str(e))
+  return { "status_code": 1, "error_message": "401 - Unauthorized access. Please check your user credentials and try again." }
+
+data_set_uid = data_set.getUid()
+data_stream_list = context.DataSet_getDataStreamList(data_set_uid)
+
+return { "status_code": 0, "result": len(data_stream_list) }

bt5/erp5_wendelin_data_lake_ingestion/SkinTemplateItem/portal_skins/erp5_wendelin_data_lake/ERP5Site_getDataStreamCount.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>Script_magic</string> </key>
+            <value> <int>3</int> </value>
+        </item>
+        <item>
+            <key> <string>_bind_names</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>_asgns</string> </key>
+                        <value>
+                          <dictionary>
+                            <item>
+                                <key> <string>name_container</string> </key>
+                                <value> <string>container</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_context</string> </key>
+                                <value> <string>context</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_m_self</string> </key>
+                                <value> <string>script</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_subpath</string> </key>
+                                <value> <string>traverse_subpath</string> </value>
+                            </item>
+                          </dictionary>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string>data_set_reference</string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>ERP5Site_getDataStreamCount</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_wendelin_data_lake_ingestion/SkinTemplateItem/portal_skins/erp5_wendelin_data_lake/ERP5Site_getDataStreamList.py

 """
 This script is called from ebulk client to get list of Data Streams for a Data set.
 """
-
 import json
 from erp5.component.module.Log import log
 
+limit=[]
+if batch_size:
+  limit=[offset, batch_size]
+
 portal = context.getPortalObject()
 
 try:
   data_set = portal.data_set_module.get(data_set_reference)
-  if data_set is None or portal.ERP5Site_checkReferenceInvalidated(data_set):
-    return { "status_code": 0, "result": [] }
+  if data_set is None or data_set.getReference().endswith("_invalid"):
+    return json.dumps({ "status_code": 0, "result": [] })
 except Exception as e: # fails because unauthorized access
   log("Unauthorized access to getDataStreamList: " + str(e))
-  return { "status_code": 1, "error_message": "401 - Unauthorized access. Please check your user credentials and try again." }
+  return json.dumps({ "status_code": 1, "error_message": "401 - Unauthorized access. Please check your user credentials and try again." })
+
+data_set_uid = data_set.getUid()
+data_stream_list = context.DataSet_getDataStreamList(data_set_uid, limit)
 
 data_stream_dict = {}
-for stream in data_set.DataSet_getDataStreamList():
-  if stream and not portal.ERP5Site_checkReferenceInvalidated(stream) and stream.getValidationState() != "draft":
-    data_stream_info_dict = { 'id': 'data_stream_module/'+stream.getId(),
-                              'size': stream.getSize(),
-                              'hash': stream.getVersion() }
-    if stream.getReference() in data_stream_dict:
-      data_stream_dict[stream.getReference()]['data-stream-list'].append(data_stream_info_dict)
-      data_stream_dict[stream.getReference()]['large-hash'] = data_stream_dict[stream.getReference()]['large-hash'] + str(stream.getVersion())
-      data_stream_dict[stream.getReference()]['full-size'] = int(data_stream_dict[stream.getReference()]['full-size']) + int(stream.getSize())
+for stream_brain in data_stream_list:
+  reference = stream_brain.reference
+  version = stream_brain.version
+  size = stream_brain.size
+  data_stream_id = stream_brain.relative_url
+  data_stream_info_dict = {'id': data_stream_id,
+                           'size': size,
+                           'hash': version}
+  if reference in data_stream_dict:
+    data_stream_dict[reference]['data-stream-list'].append(data_stream_info_dict)
+    data_stream_dict[reference]['large-hash'] = data_stream_dict[reference]['large-hash'] + str(version)
+    data_stream_dict[reference]['full-size'] = int(data_stream_dict[reference]['full-size']) + int(size)
   else:
-      data_stream_dict[stream.getReference()] = { 'data-stream-list': [data_stream_info_dict],
-                                                  'id': 'data_stream_module/'+stream.getId(),
-                                                  'reference': stream.getReference(),
-                                                  'large-hash': stream.getVersion(),
-                                                  'full-size': stream.getSize() }
+    data_stream_dict[reference] = { 'data-stream-list': [data_stream_info_dict],
+                                    'id': data_stream_id,
+                                    'reference': reference,
+                                    'large-hash': version,
+                                    'full-size': size}
 
 result_dict = { 'status_code': 0, 'result': data_stream_dict.values()}
 return json.dumps(result_dict)

bt5/erp5_wendelin_data_lake_ingestion/SkinTemplateItem/portal_skins/erp5_wendelin_data_lake/ERP5Site_getDataStreamList.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>data_set_reference</string> </value>
+            <value> <string>data_set_reference, offset=0, batch_size=0, get_count=False</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>