Class: Machinery::Object

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

Direct Known Subclasses

SystemDescription

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attrs = {}) ⇒ Object

Returns a new instance of Object.



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# File 'lib/object.rb', line 52

def initialize(attrs = {})
  @attributes = attrs.inject({}) do |attributes, (key, value)|
    key = key.to_sym if key.respond_to?(:to_sym)

    attributes[key] = value
    attributes
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/object.rb', line 86

def method_missing(name, *args, &block)
  if name.to_s.end_with?("=")
    if args.size != 1
      raise ArgumentError, "wrong number of arguments (#{args.size} for 1)"
    end

    @attributes[name.to_s[0..-2].to_sym] = args.first
  else
    if @attributes.has_key?(name)
      if !args.empty?
        raise ArgumentError, "wrong number of arguments (#{args.size} for 0)"
      end

      @attributes[name]
    else
      nil
    end
  end
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/object.rb', line 50

def attributes
  @attributes
end

Class Method Details

.from_json(json) ⇒ Object 



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# File 'lib/object.rb', line 26

def from_json(json)
  return nil unless json

  entries = json.map do |key, value|
    value_converted = if @property_classes && @property_classes[key.to_sym]
      @property_classes[key.to_sym].from_json(value)
    else
      case value
        when ::Array
          Machinery::Array.from_json(value)
        when Hash
          Machinery::Object.from_json(value)
        else
          value
      end
    end

    [key, value_converted]
  end

  new(Hash[entries])
end

.has_property(name, options) ⇒ Object 



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# File 'lib/object.rb', line 21

def has_property(name, options)
  @property_classes ||= {}
  @property_classes[name.to_sym] = options[:class]
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/object.rb', line 61

def ==(other)
  self.class == other.class && @attributes == other.attributes
end

#[](key) ⇒ Object 



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# File 'lib/object.rb', line 74

def [](key)
  @attributes[key.to_sym]
end

#[]=(key, value) ⇒ Object 



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# File 'lib/object.rb', line 78

def []=(key, value)
  @attributes[key.to_sym] = value
end

#as_json ⇒ Object 



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# File 'lib/object.rb', line 119

def as_json
  entries = @attributes.map do |key, value|
    case value
    when Machinery::Array, Machinery::Object
      value_json = value.as_json
    else
      value_json = value
    end

    [key, value_json]
  end

  Hash[entries]
end

#compare_with(other) ⇒ Object 



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# File 'lib/object.rb', line 134

def compare_with(other)
  self == other ? [nil, nil, self] : [self, other, nil]
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/object.rb', line 82

def empty?
  @attributes.keys.empty?
end

#hash ⇒ Object 



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# File 'lib/object.rb', line 70

def hash
  @attributes.hash
end

#initialize_copy(orig) ⇒ Object 



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# File 'lib/object.rb', line 114

def initialize_copy(orig)
  super
  @attributes = @attributes.dup
end

#respond_to?(name, include_all = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/object.rb', line 106

def respond_to?(name, include_all = false)
  if name.to_s.end_with?("=")
    true
  else
    @attributes.has_key?(name) || super(name, include_all)
  end
end