add endpoint to return data_sources and develope to search by data so…

…urce

omero_search_engine/api/v1/resources/urls.py

@@ -24,6 +24,7 @@
     search_resource_annotation,
     build_error_message,
     adjust_query_for_container,
+    get_data_sources
 )
 from omero_search_engine.api.v1.resources.resource_analyser import (
     search_value_for_resource,
@@ -45,6 +46,12 @@
 def index():
     return "OMERO search engine (API V1)"
 
+@resources.route("/data_resources/", methods=["GET"])
+def return_data_resources():
+    """
+    used to return the available data resources
+    """
+    return jsonify(get_data_sources())
 
 @resources.route("/<resource_table>/searchannotation_page/", methods=["POST"])
 def search_resource_page(resource_table):

omero_search_engine/api/v1/resources/utils.py

@@ -1074,6 +1074,7 @@ def search_resource_annotation(
     bookmark=None,
     pagination_dict=None,
     return_containers=False,
+    data_source=None
 ):
     """
     @table_: the resource table, e.g. image. project, etc.
@@ -1106,6 +1107,22 @@ def search_resource_annotation(
             return build_error_message(
                 "{query} is not a valid query".format(query=query)
             )
+        if data_source and data_source.lower()!= "all" :
+            clause={}
+            clause["name"]="data_source"
+            clause["value"]=data_source
+            clause["operator"]="equals"
+            #'resource': 'image'
+
+            if main_attributes and len(main_attributes) > 0:
+                if main_attributes.get("and_main_attributes"):
+                    main_attributes.get("and_main_attributes").append(clause)
+                else:
+                    main_attributes["and_main_attributes"]=[clause]
+            else:
+                main_attributes={}
+                main_attributes["and_main_attributes"] = [clause]
+
         and_filters = query_details.get("and_filters")
         or_filters = query_details.get("or_filters")
         case_sensitive = query_details.get("case_sensitive")
@@ -1254,3 +1271,9 @@ def adjust_query_for_container(query):
 
         for filter in new_or_filters:
             or_filters.append(filter)
+
+def get_data_sources():
+    data_sources=[]
+    for data_source in search_omero_app.config.database_connectors.keys():
+        data_sources.append(data_source)
+    return data_sources