Class: PoolParty::EC2ResponseObject

Inherits:
Object
  • Object
show all
Defined in:
lib/modules/ec2_wrapper.rb

Overview

Provides a simple class to wrap around the amazon responses

Class Method Summary collapse

Class Method Details

.get_descriptions(resp) ⇒ Object 



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# File 'lib/modules/ec2_wrapper.rb', line 61

def self.get_descriptions(resp)      
  rs = get_response_from(resp)
  
  # puts rs.methods.sort - rs.ancestors.methods
  out = begin
    if rs.respond_to?(:instancesSet)
      [EC2ResponseObject.get_hash_from_response(rs.instancesSet.item)]
    else
      rs.collect {|r| 
        if r.instancesSet.item.class == Array
          r.instancesSet.item.map {|t| EC2ResponseObject.get_hash_from_response(t)}
        else
          [EC2ResponseObject.get_hash_from_response(r.instancesSet.item)]
        end            
      }.flatten.reject {|a| a.nil? }
    end
  rescue Exception => e
    # Really weird bug with amazon's ec2 gem
    rs.collect {|r| EC2ResponseObject.get_hash_from_response(r)}.reject {|a| a.nil? } rescue []
  end
  
  out
end

.get_hash_from_response(resp) ⇒ Object 



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# File 'lib/modules/ec2_wrapper.rb', line 94

def self.get_hash_from_response(resp)
  begin
    {
      :instance_id => resp.instanceId, 
      :ip => resp.dnsName, 
      :status => resp.instanceState.name,
      :launching_time => resp.launchTime,
      :keypair => resp.keyName
    }        
  rescue Exception => e
    nil
  end      
end

.get_response_from(resp) ⇒ Object 



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# File 'lib/modules/ec2_wrapper.rb', line 84

def self.get_response_from(resp)
  begin
    rs = resp.reservationSet.item unless resp.reservationSet.nil?
    rs ||= resp.DescribeInstancesResponse.reservationSet.item
    rs ||= rs.respond_to?(:instancesSet) ? rs.instancesSet : rs
    rs.reject! {|a| a.nil? || a.empty? }
  rescue Exception => e
  end
  rs
end