lib/perus/pinger/pinger.rb in perus-0.1.12 vs lib/perus/pinger/pinger.rb in perus-0.1.13

@@ -106,9 +106,13 @@
             json = JSON.parse(RestClient.get(config_url))
             json['metrics'] ||= []
             json['actions'] ||= []
             @system_id = json['id']
 
+            if @system_id == 'nil'
+                raise 'This system is unknown to the server'
+            end
+
             # load metric and command modules based on the config
             json['metrics'].each do |config|
                 begin
                     if ::Perus::Pinger.const_defined?(config['type'])
                         metric = ::Perus::Pinger.const_get(config['type'])