added SetAlarmState

lib/fog/aws/cloud_watch.rb

@@ -17,6 +17,7 @@ module Fog
       request :enable_alarm_actions
       request :disable_alarm_actions
       request :describe_alarms_for_metric
+      request :set_alarm_state
 
       model_path 'fog/aws/models/cloud_watch'
       model       :metric

lib/fog/aws/parsers/cloud_watch/set_alarm_state.rb

@@ -0,0 +1,26 @@
+module Fog
+  module Parsers
+    module AWS
+      module CloudWatch
+
+        class SetAlarmState < Fog::Parsers::Base
+
+          def reset
+            @response = { 'ResponseMetadata' => {} }
+          end
+
+          def start_element(name, attrs = [])
+            super
+          end
+
+          def end_element(name)
+            case name
+            when 'RequestId'
+              @response['ResponseMetadata'][name] = value
+            end
+          end
+        end       
+      end
+    end
+  end
+end

lib/fog/aws/requests/cloud_watch/set_alarm_state.rb

@@ -0,0 +1,31 @@
+module Fog
+  module AWS
+    class CloudWatch
+      class Real     
+
+      	require 'fog/aws/parsers/cloud_watch/set_alarm_state'
+
+    	# Temporarily sets the state of an alarm
+        # ==== Options
+        # * AlarmName<~String>: The names of the alarm
+        # * StateReason<~String>: The reason that this alarm is set to this specific state (in human-readable text format)
+        # * StateReasonData<~String>: The reason that this alarm is set to this specific state (in machine-readable JSON format)
+        # * StateValue<~String>: The value of the state
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #
+        # ==== See Also
+        # http://docs.amazonwebservices.com/AmazonCloudWatch/latest/APIReference/API_SetAlarmState.html
+        #
+
+        def set_alarm_state(options)
+          request({
+              'Action'    => 'SetAlarmState',
+              :parser     => Fog::Parsers::AWS::CloudWatch::SetAlarmState.new
+            }.merge(options))
+        end
+      end
+    end
+  end
+end