Module: Ruspider::XmlUtils

Included in:
InchIAPI, MassSpecAPI
Defined in:
lib/ruspider/xml_utils.rb

Overview

XML utilities

Instance Method Summary collapse

Instance Method Details

#array_from_xml(xml_str, obj_name, field) ⇒ Object 



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# File 'lib/ruspider/xml_utils.rb', line 34

def array_from_xml(xml_str, obj_name, field)
  xml = get_nodes(Nokogiri::XML(xml_str), obj_name)
  arr = xml.xpath("//cs:#{field}", 'cs' => 'http://www.chemspider.com/')
  arr.map(&:content)
end

#get_first_node(xml, node_name) ⇒ Object 



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# File 'lib/ruspider/xml_utils.rb', line 15

def get_first_node(xml, node_name)
  get_nodes(xml, node_name).first
end

#get_nodes(xml, node_name) ⇒ Object 



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# File 'lib/ruspider/xml_utils.rb', line 8

def get_nodes(xml, node_name)
  xml.xpath(
    "//cs:#{node_name}",
    'cs' => 'http://www.chemspider.com/'
  )
end

#hash_from_string(xml_str, obj_name, field) ⇒ Object 



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# File 'lib/ruspider/xml_utils.rb', line 29

def hash_from_string(xml_str, obj_name, field)
  xml = get_first_node(Nokogiri::XML(xml_str), obj_name)
  hash_from_xml(xml, field)
end

#hash_from_xml(xml, field) ⇒ Object 



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# File 'lib/ruspider/xml_utils.rb', line 19

def hash_from_xml(xml, field)
  hash = {}
  field.each do |k, v|
    node = xml.xpath("//cs:#{k}", 'cs' => 'http://www.chemspider.com/')
    hash[v.to_sym] = node.first.content
  end

  hash
end