Class: Grandprix::Planner

Inherits:
Object
  • Object
show all
Defined in:
lib/grandprix/planner.rb

Instance Method Summary collapse

Constructor Details

#initialize(graph) ⇒ Planner

Returns a new instance of Planner.



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# File 'lib/grandprix/planner.rb', line 2

def initialize(graph)
  @graph = graph
end

Instance Method Details

#plan(topology, elements_array) ⇒ Object 



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# File 'lib/grandprix/planner.rb', line 6

def plan(topology, elements_array)
  elements = Grandprix::Elements.build elements_array

  nested_dependencies = project_array(topology, "after")
  alongside = project_array(topology, "alongside")

  dependencies = flatten_edges nested_dependencies

  full_dependencies = dependencies.flat_map do |from, to|
    extended_from = alongside[from] + [from]
    extended_to   = alongside[  to] + [to  ]
    new_deps = extended_from.product extended_to

    eliminate_self_loops compact_pairs(new_deps)
  end

  before_relation = invert full_dependencies

  in_order = @graph.sort before_relation

  full_elements = elements.alongside alongside
  independent_elements = elements.except in_order
  elements_in_order = full_elements.reorder in_order 

  all = independent_elements + elements_in_order
  all.annotate project(topology, "annotation")
end