Class: Awsum::Ec2::InstanceParser

Inherits:
Parser show all
Defined in:
lib/awsum/ec2/parsers/instance_parser.rb

Overview

:nodoc:

Instance Method Summary collapse

Methods inherited from Parser

#parse, #xmldecl

Constructor Details

#initialize(ec2) ⇒ InstanceParser

Returns a new instance of InstanceParser.



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# File 'lib/awsum/ec2/parsers/instance_parser.rb', line 4

def initialize(ec2)
  @ec2 = ec2
  @instances = []
  @text = nil
  @stack = []
  @placement = nil
  @state = nil
end

Instance Method Details

#result ⇒ Object 



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# File 'lib/awsum/ec2/parsers/instance_parser.rb', line 94

def result
  @instances
end

#tag_end(tag) ⇒ Object 



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# File 'lib/awsum/ec2/parsers/instance_parser.rb', line 38

def tag_end(tag)
  case tag
    when 'DescribeInstancesResponse', 'requestId', 'reservationId'
      #no-op
    when 'reservationSet', 'instancesSet', 'productCodes', 'instanceState', 'placement', 'blockDeviceMapping', 'tagSet'
      @stack.pop
    when 'item'
      case @stack[-1]
        when 'instancesSet'
          @instances << Instance.new(
                          @ec2,
                          @current['instanceId'],
                          @current['imageId'],
                          @current['instanceType'],
                          State.new(@state[:code], @state[:name]),
                          @current['dnsName'],
                          @current['privateDnsName'],
                          @current['keyName'],
                          @current['kernalId'],
                          Time.parse(@current['launchTime']),
                          @placement,
                          @product_codes || [],
                          @current['ramdisk_id'],
                          @current['reason'],
                          @current['amiLaunchIndex'].to_i
                        )
      end
    when 'productCode'
      @product_codes << @text.strip
    when 'availabilityZone'
      @placement = @text.strip
    when 'code'
      @state[:code] = @text.strip.to_i if @stack[-1] == 'instanceState'
    when 'name'
      @state[:name] = @text.strip if @stack[-1] == 'instanceState'
    else
      case @stack[-1]
        when 'blockDeviceMapping'
          unless @text.nil? || @blockDeviceMapping.nil?
            text = @text.strip
            @blockDeviceMapping[tag] = (text == '' ? nil : text)
          end
        when 'tagSet'
          unless @text.nil? || @blockDeviceMapping.nil?
            text = @text.strip
            @blockDeviceMapping[tag] = (text == '' ? nil : text)
          end
        else
          unless @text.nil? || @current.nil?
            text = @text.strip
            @current[tag] = (text == '' ? nil : text)
          end
      end
  end
end

#tag_start(tag, attributes) ⇒ Object 



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# File 'lib/awsum/ec2/parsers/instance_parser.rb', line 13

def tag_start(tag, attributes)
  case tag
    when 'reservationSet', 'instancesSet', 'productCodes', 'instanceState', 'blockDeviceMapping', 'tagSet', 'placement'
      @stack << tag
    when 'item'
      case @stack[-1]
        when 'reservationSet'
        when 'instancesSet'
          @current = {}
          @state = {}
        when 'productCodes'
          @product_codes = []
        when 'blockDeviceMapping'
          @blockDeviceMapping = {}
        when 'tagSet'
          @tagSet = {}
      end
  end
  @text = ''
end

#text(text) ⇒ Object 



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# File 'lib/awsum/ec2/parsers/instance_parser.rb', line 34

def text(text)
  @text << text unless @text.nil?
end