Class: VORuby::ADQL::Operations

Inherits:
Object
  • Object
show all
Defined in:
lib/voruby/adql/operations.rb

Class Method Summary collapse

Class Method Details

.get_columns(path) ⇒ Object

This method returns an array of column names. For now, it reads a file from somewhere path. In the future we’ll have a service that will return a xml file with similar information.

path

It’s temporal param



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# File 'lib/voruby/adql/operations.rb', line 12

def self.get_columns(path)
  columns_array = [{'name'=>'All'}]

  document = REXML::Document.new(File.new(path))#This is temporal way
  raise "Document haven't elements" if document.root == nil

  document.root.elements.each('String') do |element|
    columns_array.push({'name'=>element.text})
  end

  return columns_array
end

.get_meta_columns(path) ⇒ Object

This method returns an array of column info. For now, it reads a file from somewhere path. In the future we’ll have a service that will return a xml file with similar information.

path

It’s temporal param



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# File 'lib/voruby/adql/operations.rb', line 30

def self.get_meta_columns(path)
  columns_array = []

  document = REXML::Document.new(File.new(path))#This is temporal way
  raise "Document haven't elements" if document.root == nil

  document.root.elements.each('MetaColumn') do |meta_element|      
    node_name = REXML::XPath.first(meta_element, 'Name')
    node_unit = REXML::XPath.first(meta_element, 'Unit')
    node_des = REXML::XPath.first(meta_element, 'Description')
    node_ucd = REXML::XPath.first(meta_element, 'UCD')
  
    columns_array.push({'name'=> node_name.text,
                        'unit'=> node_unit.text,
                        'description'=> node_des.text,
                        'ucd'=>node_ucd.text})
  end

  return columns_array
end