Class: EC2::DescribeInstancesResponse

Inherits:
Response
  • Object
show all
Defined in:
lib/EC2/responses.rb

Constant Summary collapse

ELEMENT_XPATH = 
"DescribeInstancesResponse/reservationSet/item"

Constants inherited from Response

Response::ERROR_XPATH

Instance Attribute Summary

Attributes inherited from Response

#http_response, #http_xml, #structure

Instance Method Summary collapse

Methods inherited from Response

#initialize, #is_error?, #parse_error, #to_s

Constructor Details

This class inherits a constructor from EC2::Response

Instance Method Details

#parse ⇒ Object 



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# File 'lib/EC2/responses.rb', line 172

def parse
  doc = REXML::Document.new(@http_xml)
  lines = []
  
  doc.elements.each(ELEMENT_XPATH) do |rootelement|
    reservationId = REXML::XPath.first(rootelement, "reservationId").text
    ownerId = REXML::XPath.first(rootelement, "ownerId").text
    groups = nil
    rootelement.elements.each("groupSet/item/groupId") do |element|
      if not groups
        groups = element.text
      else
        groups += "," + element.text
      end
    end
    lines << ["RESERVATION", reservationId, ownerId, groups]
    
    rootelement.elements.each("instancesSet/item") do |element|
      instanceId = REXML::XPath.first(element, "instanceId").text
      imageId = REXML::XPath.first(element, "imageId").text
      instanceState = REXML::XPath.first(element, "instanceState/name").text
      # Only for debug mode, which we don't support yet:
      instanceStateCode = REXML::XPath.first(element, "instanceState/code").text
      dnsName = REXML::XPath.first(element, "dnsName").text
      # We don't return this, but still:
      reason = REXML::XPath.first(element, "reason").text
      lines << ["INSTANCE", instanceId, imageId, dnsName, instanceState]
    end
  end
  lines
end