Class: InventoryRefresh::InventoryCollection::Scanner

Inherits:
Object
  • Object
show all
Defined in:
lib/inventory_refresh/inventory_collection/scanner.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(inventory_collection, indexed_inventory_collections) ⇒ Scanner

Returns a new instance of Scanner.



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# File 'lib/inventory_refresh/inventory_collection/scanner.rb', line 53

def initialize(inventory_collection, indexed_inventory_collections)
  @inventory_collection          = inventory_collection
  @indexed_inventory_collections = indexed_inventory_collections
end

Instance Attribute Details

#indexed_inventory_collections ⇒ Object (readonly)

Returns the value of attribute indexed_inventory_collections.



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# File 'lib/inventory_refresh/inventory_collection/scanner.rb', line 27

def indexed_inventory_collections
  @indexed_inventory_collections
end

#inventory_collection ⇒ Object (readonly)

Returns the value of attribute inventory_collection.



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# File 'lib/inventory_refresh/inventory_collection/scanner.rb', line 27

def inventory_collection
  @inventory_collection
end

Class Method Details

.scan!(inventory_collections) ⇒ Object

Scanning inventory_collections for dependencies and references, storing the results in the inventory_collections themselves. Dependencies are needed for building a graph, references are needed for effective DB querying, where we can load all referenced objects of some InventoryCollection by one DB query.

Parameters:



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# File 'lib/inventory_refresh/inventory_collection/scanner.rb', line 12

def scan!(inventory_collections)
  indexed_inventory_collections = inventory_collections.index_by(&:name)

  inventory_collections.each do |inventory_collection|
    new(inventory_collection, indexed_inventory_collections).scan!
  end

  inventory_collections.each do |inventory_collection|
    inventory_collection.dependencies.each do |dependency|
      dependency.dependees << inventory_collection
    end
  end
end

Instance Method Details

#scan! ⇒ Object 



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# File 'lib/inventory_refresh/inventory_collection/scanner.rb', line 58

def scan!
  # Scan InventoryCollection InventoryObjects and store the results inside of the InventoryCollection
  data.each do |inventory_object|
    scan_inventory_object!(inventory_object)

    if targeted? && parent_inventory_collections.blank?
      # We want to track what manager_uuids we should query from a db, for the targeted refresh
      targeted_scope << inventory_object.reference
    end
  end

  # Transform :parent_inventory_collections symbols to InventoryCollection objects
  if parent_inventory_collections.present?
    self.parent_inventory_collections = parent_inventory_collections.map do |inventory_collection_index|
      ic = indexed_inventory_collections[inventory_collection_index]
      if ic.nil?
        raise "Can't find InventoryCollection #{inventory_collection_index} from #{inventory_collection}" if targeted?
      else
        # Add parent_inventory_collection as a dependency, so e.g. disconnect is done in a right order
        (dependency_attributes[:__parent_inventory_collections] ||= Set.new) << ic
        ic
      end
    end.compact
  end

  # Mark InventoryCollection as finalized aka. scanned
  self.data_collection_finalized = true
end