Class: Megam::ComponentsCollection

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/megam/core/components_collection.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ComponentsCollection

Returns a new instance of ComponentsCollection.



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# File 'lib/megam/core/components_collection.rb', line 21

def initialize
  @components = Array.new
  @components_by_name = Hash.new
  @insert_after_idx = nil
end

Instance Attribute Details

#iterator ⇒ Object (readonly)

Returns the value of attribute iterator.



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# File 'lib/megam/core/components_collection.rb', line 20

def iterator
  @iterator
end

Class Method Details

.json_create(o) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 119

def self.json_create(o)
  collection = self.new()
  o["results"].each do |components_list|
    components_array = components_list.kind_of?(Array) ? components_list : [ components_list ]
    components_array.each do |components|
      collection.insert(components)

    end
  end
  collection
end

Instance Method Details

#<<(*args) ⇒ Object Also known as: push 



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# File 'lib/megam/core/components_collection.rb', line 41

def <<(*args)
  args.flatten.each do |a|
    is_megam_components(a)
    @components << a
    @components_by_name[a.name] = @components.length - 1
  end
  self
end

#[](index) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 31

def [](index)
  @components[index]
end

#[]=(index, arg) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 35

def []=(index, arg)
  is_megam_components(arg)
  @components[index] = arg
  @components_by_name[arg.name] = index
end

#all_components ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 27

def all_components
  @components
end

#each ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 72

def each
  @components.each do |components|
    yield components
  end
end

#each_index ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 78

def each_index
  @components.each_index do |i|
    yield i
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/megam/core/components_collection.rb', line 84

def empty?
  @components.empty?
end

#insert(components) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 53

def insert(components)
  is_megam_components(components)
  if @insert_after_idx
    # in the middle of executing a run, so any nodes inserted now should
    # be placed after the most recent addition done by the currently executing
    # node
    @components.insert(@insert_after_idx + 1, components)
    # update name -> location mappings and register new node
    @components_by_name.each_key do |key|
    @components_by_name[key] += 1 if @components_by_name[key] > @insert_after_idx
    end
    @components_by_name[components.name] = @insert_after_idx + 1
    @insert_after_idx += 1
  else
  @components << components
  @components_by_name[components.name] = @components.length - 1
  end
end

#lookup(components) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 88

def lookup(components)
  lookup_by = nil
  if components.kind_of?(Megam::Components)
  lookup_by = components.name
  elsif components.kind_of?(String)
  lookup_by = components
  else
    raise ArgumentError, "Must pass a Megam::components or String to lookup"
  end
  res = @components_by_name[lookup_by]
  unless res
    raise ArgumentError, "Cannot find a node matching #{lookup_by} (did you define it first?)"
  end
  @components[res]
end

#to_hash ⇒ Object

Transform the ruby obj -> to a Hash



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# File 'lib/megam/core/components_collection.rb', line 105

def to_hash
  index_hash = Hash.new
  self.each do |components|
    index_hash[components.name] = components.to_s
  end
  index_hash
end

#to_json(*a) ⇒ Object

Serialize this object as a hash: called from JsonCompat. Verify if this called from JsonCompat during testing.



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# File 'lib/megam/core/components_collection.rb', line 115

def to_json(*a)
  for_json.to_json(*a)
end