initial import of failover code

lib/amqp/failover/basic_client/on_disconnect.rb

@@ -0,0 +1,46 @@
+# encoding: utf-8
+
+module AMQP
+  module Failover
+    module BasicClient
+      class OnDisconnect
+        
+        attr_accessor :base
+        attr_accessor :failover
+        attr_accessor :configs
+        attr_accessor :logger
+        
+        def initialize(base)
+          @base = base
+          @configs = @base.configs
+          @failover_conf = @base.failover_conf
+          @logger = @base.logger
+        end
+        
+        def call
+          @logic ||= Logic.new(@configs.configs, @failover_conf.get_primary, @failover_conf.failover_config)
+          if (new_settings = @logic.failover_from(@base.settings))
+            log_message = "Could not connect to or lost connection to server #{@base.settings[:host]}:#{@base.settings[:port]}. " +
+                          "Attempting connection to: #{new_settings[:host]}:#{new_settings[:port]}"
+            @logger.error(log_message)
+            @logger.info(log_message)
+            
+            if @failover_conf.get_primary == @base.settings
+              FallbackMonitor.monitor(@failover_conf.get_primary) do
+                @base.clean_exit("Primary server (#{@failover_conf.get_primary[:host]}:#{@failover_conf.get_primary[:port]}) is back. " +
+                                 "Performing clean exit to be relaunched with primary config.")
+              end
+            end
+            
+            @base.settings = new_settings
+            @base.reconnect
+          else
+            raise Error, "Could not connect to server #{@base.settings[:host]}:#{@base.settings[:port]}"
+          end
+        end
+        
+      end # OnDisconnect
+    end # BasicClient
+  end # Failover
+end # AMQP
+