lib/logstash/inputs/mongoprofile.rb in logstash-input-mongoprofile-0.1.6 vs lib/logstash/inputs/mongoprofile.rb in logstash-input-mongoprofile-0.1.7

@@ -98,11 +98,15 @@
       yield @parser.parse(document)
     end
   end
 
   def get_last_document_date
-    @documents[-1]['ts']
+    if @documents != nil
+      @documents[-1]['ts']
+    else
+      nil
+    end
   end
 
   private
   def generate_id
     # noinspection RubyArgCount
@@ -165,10 +169,14 @@
       documents = @mongo_accessor.get_documents_by_ts(last_date_value, @limit)
     end
 
     profile_collection = ProfileCollection.new(documents, @document_parser)
 
-    @last_value_store.save_last_value(profile_collection.get_last_document_date)
+    if  profile_collection.get_last_document_date != nil
+      @last_value_store.save_last_value(profile_collection.get_last_document_date)
+    end
+      @logger.info('Nothing to get...')
+    else
 
     profile_collection
   end
 end
\ No newline at end of file