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 6

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 5

def iterator
  @iterator
end

Class Method Details

.json_create(o) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 102

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 26

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 16

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

#[]=(index, arg) ⇒ Object 



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

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 12

def all_components
    @components
end

#each ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 57

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 63

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 69

def empty?
    @components.empty?
end

#for_json ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 93

def for_json
    to_a.map { |item| item.to_s }
end

#insert(components) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 38

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 73

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_json(*a) ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 97

def to_json(*a)
    Megam::JSONCompat.to_json(for_json, *a)
end

#to_s ⇒ Object 



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# File 'lib/megam/core/components_collection.rb', line 89

def to_s
    @components.join(", ")
end