Class: Saper::Items::JSON

Inherits:
Saper::Item show all
Defined in:
lib/saper/items/json.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Saper::Item

#==, [], exists?, inherited, subclasses, try, type, #type

Constructor Details

#initialize(hash) ⇒ JSON

Returns a new instance of JSON.



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# File 'lib/saper/items/json.rb', line 24

def initialize(hash)
  @hash = hash
end

Class Method Details

.new(item) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 5

def self.new(item)
  super case item
  when Text
    parse(item.to_s)
  when String
    parse(item)
  else
    raise(InvalidItem, item)
  end
end

.parse(string) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 16

def self.parse(string)
  begin
    ::JSON.parse(string)
  rescue
    raise(InvalidItem, string)
  end
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 28

def [](name)
  value = @hash[name.to_s]
  case value
  when Hash
    self.class.new(value)
  when Array
    self.class.new(value)
  else
    value
  end
end

#find(xpath) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 40

def find(xpath)
  find_all(xpath).first
end

#find_all(xpath) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 44

def find_all(xpath)
  JSONSearch.find(@hash, xpath).map do |item|
    sanitize(item)
  end
end

#sanitize(item) ⇒ Object 



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# File 'lib/saper/items/json.rb', line 50

def sanitize(item)
  case item
    when Hash
      self.class.new(item)
    when Array
      item.map { |i| sanitize(i) }
    else
      item
  end
end

#to_native ⇒ Object 



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# File 'lib/saper/items/json.rb', line 61

def to_native
  @hash
end