Bump version to 0.4.0 and move DruidApiError to Exception class

README.md

@@ -61,7 +61,13 @@ Some methods return an instance of an `Entity` class. These entities provide mul
 
 ## Exceptions
 
-Sometimes the Gem can't access to Druid API. In this case, the gem automatically will reset the Zookeeper connection and retry the query. If second query fails too, a `DruidApiError` exception will be raised.
+### DruidConfig::Exceptions::NotAvailableNodes
+
+This exception will be raised when you try to perform a query to a Druid Coordinator or Overlord but there aren't any node of that type available.
+
+### DruidConfig::Exceptions::DruidApiError
+
+Sometimes the Gem have available nodes, but it can't access to Druid API. In this case, the gem automatically will reset the Zookeeper connection and retry the query. If second query fails too, a `DruidConfig::Exceptions::DruidApiError` exception will be raised.
 
 # Collaborate
 

lib/druid_config.rb

@@ -23,11 +23,6 @@
 
 # Base namespace of the gem
 module DruidConfig
-  #
-  # Exception class for an error to connect the API
-  #
-  class DruidApiError < StandardError; end
-
   # Global client of Druidconfig module
   @client = nil
 

lib/druid_config/exceptions.rb

@@ -14,5 +14,10 @@ def initialize(service)
         super("There aren't any available #{service} node")
       end
     end
+
+    #
+    # Exception class for an error to connect the API
+    #
+    class DruidApiError < StandardError; end
   end
 end

lib/druid_config/util.rb

@@ -20,12 +20,12 @@ def secure_query
       begin
         yield
       rescue HTTParty::RedirectionTooDeep => e
-        raise(DruidApiError, e) if @retries > 0
+        raise(DruidConfig::Exceptions::DruidApiError, e) if @retries > 0
         @retries += 1
         reset!
         retry
       rescue Errno::ECONNREFUSED => e
-        raise(DruidApiError, e) if @retries > 0
+        raise(DruidConfig::Exceptions::DruidApiError, e) if @retries > 0
         @retries += 1
         reset!
         retry