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Contents
module Dynflow
class Director
class FlowManager
include Algebrick::TypeCheck
attr_reader :execution_plan, :cursor_index
def initialize(execution_plan, flow)
@execution_plan = Type! execution_plan, ExecutionPlan
@flow = flow
@cursor_index = {}
@cursor = build_root_cursor
end
def done?
@cursor.done?
end
# @return [Set] of steps to continue with
def what_is_next(flow_step)
return [] if flow_step.state == :suspended
success = flow_step.state != :error
return cursor_index[flow_step.id].what_is_next(flow_step, success)
end
# @return [Set] of steps to continue with
def start
return @cursor.what_is_next.tap do |steps|
raise 'invalid state' if steps.empty? && !done?
end
end
private
def build_root_cursor
# the root cursor has to always run against sequence
sequence = @flow.is_a?(Flows::Sequence) ? @flow : Flows::Sequence.new([@flow])
return SequenceCursor.new(self, sequence, nil)
end
end
end
end
Version data entries
40 entries across 40 versions & 1 rubygems