Class: Puppet::Transaction::EventManager
- Defined in:
- lib/vendor/puppet/transaction/event_manager.rb
Instance Attribute Summary collapse
-
#events ⇒ Object
readonly
Returns the value of attribute events.
-
#transaction ⇒ Object
readonly
Returns the value of attribute transaction.
Instance Method Summary collapse
-
#initialize(transaction) ⇒ EventManager
constructor
A new instance of EventManager.
-
#process_events(resource) ⇒ Object
Respond to any queued events for this resource.
-
#queue_events(resource, events) ⇒ Object
Queue events for other resources to respond to.
- #queue_events_for_resource(source, target, callback, events) ⇒ Object
- #queued_events(resource) ⇒ Object
- #relationship_graph ⇒ Object
Constructor Details
#initialize(transaction) ⇒ EventManager
Returns a new instance of EventManager.
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 6 def initialize(transaction) @transaction = transaction @event_queues = {} @events = [] end |
Instance Attribute Details
#events ⇒ Object (readonly)
Returns the value of attribute events.
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 4 def events @events end |
#transaction ⇒ Object (readonly)
Returns the value of attribute transaction.
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 4 def transaction @transaction end |
Instance Method Details
#process_events(resource) ⇒ Object
Respond to any queued events for this resource.
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 17 def process_events(resource) restarted = false queued_events(resource) do |callback, events| r = process_callback(resource, callback, events) restarted ||= r end if restarted queue_events(resource, [resource.event(:name => :restarted, :status => "success")]) transaction.resource_status(resource).restarted = true end end |
#queue_events(resource, events) ⇒ Object
Queue events for other resources to respond to. All of these events have to be from the same resource.
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 33 def queue_events(resource, events) #@events += events # Do some basic normalization so we're not doing so many # graph queries for large sets of events. events.inject({}) do |collection, event| collection[event.name] ||= [] collection[event.name] << event collection end.collect do |name, list| # It doesn't matter which event we use - they all have the same source # and name here. event = list[0] # Collect the targets of any subscriptions to those events. We pass # the parent resource in so it will override the source in the events, # since eval_generated children can't have direct relationships. received = (event.name != :restarted) relationship_graph.matching_edges(event, resource).each do |edge| received ||= true unless edge.target.is_a?(Puppet::Type.type(:whit)) next unless method = edge.callback next unless edge.target.respond_to?(method) queue_events_for_resource(resource, edge.target, method, list) end @events << event if received queue_events_for_resource(resource, resource, :refresh, [event]) if resource.self_refresh? and ! resource.deleting? end end |
#queue_events_for_resource(source, target, callback, events) ⇒ Object
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 64 def queue_events_for_resource(source, target, callback, events) whit = Puppet::Type.type(:whit) # The message that a resource is refreshing the completed-whit for its own class # is extremely counter-intuitive. Basically everything else is easy to understand, # if you suppress the whit-lookingness of the whit resources refreshing_c_whit = target.is_a?(whit) && target.name =~ /^completed_/ if refreshing_c_whit source.debug "The container #{target} will propagate my #{callback} event" else source.info "Scheduling #{callback} of #{target}" end @event_queues[target] ||= {} @event_queues[target][callback] ||= [] @event_queues[target][callback].concat(events) end |
#queued_events(resource) ⇒ Object
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 83 def queued_events(resource) return unless callbacks = @event_queues[resource] callbacks.each do |callback, events| yield callback, events end end |
#relationship_graph ⇒ Object
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# File 'lib/vendor/puppet/transaction/event_manager.rb', line 12 def relationship_graph transaction.relationship_graph end |