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[compute|aws] simplify describe_instances parser

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geemus 2011-06-23 11:51:00 -07:00
parent a1ad4cf245
commit 9bbf91537c
1 changed files with 18 additions and 52 deletions
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70
lib/fog/compute/parsers/aws/describe_instances.rb
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@ -7,6 +7,8 @@ module Fog
def reset
@block_device_mapping = {}
@context = []
@contexts = ['blockDeviceMapping', 'groupSet', 'instancesSet', 'instanceState', 'productCodes', 'stateReason', 'tagSet']
@instance = { 'blockDeviceMapping' => [], 'instanceState' => {}, 'monitoring' => {}, 'placement' => {}, 'productCodes' => [], 'stateReason' => {}, 'tagSet' => {} }
@reservation = { 'groupSet' => [], 'instancesSet' => [] }
@response = { 'reservationSet' => [] }
@ -15,19 +17,8 @@ module Fog
def start_element(name, attrs = [])
super
case name
when 'blockDeviceMapping'
@in_block_device_mapping = true
when'groupSet', 'productCodes'
@in_subset = true
when 'instancesSet'
@in_instances_set = true
when 'instanceState'
@in_instance_state = true
when 'stateReason'
@in_state_reason = true
when 'tagSet'
@in_tag_set = true
if @contexts.include?(name)
@context.push(name)
end
end
@ -44,41 +35,28 @@ module Fog
@instance[name] = value
when 'attachTime'
@block_device_mapping[name] = Time.parse(value)
when 'blockDeviceMapping'
@in_block_device_mapping = false
when *@contexts
@context.pop
when 'code'
if @in_instance_state
@instance['instanceState'][name] = value.to_i
elsif @in_state_reason
@instance['stateReason'][name] = value.to_i
end
@instance[@context.last][name] = value.to_i
when 'deleteOnTermination'
if value == 'true'
@block_device_mapping[name] = true
else
@block_device_mapping[name] = false
end
@block_device_mapping[name] = (value == 'true')
when 'deviceName', 'status', 'volumeId'
@block_device_mapping[name] = value
when 'groupId'
when 'groupName'
@reservation['groupSet'] << value
when 'groupSet', 'productCodes'
@in_subset = false
when 'instancesSet'
@in_instances_set = false
when 'instanceState'
@in_instance_state = false
when 'item'
if @in_block_device_mapping
case @context.last
when 'blockDeviceMapping'
@instance['blockDeviceMapping'] << @block_device_mapping
@block_device_mapping = {}
elsif @in_tag_set
@instance['tagSet'][@tag['key']] = @tag['value']
@tag = {}
elsif @in_instances_set
when 'instancesSet'
@reservation['instancesSet'] << @instance
@instance = { 'blockDeviceMapping' => [], 'instanceState' => {}, 'monitoring' => {}, 'placement' => {}, 'productCodes' => [], 'stateReason' => {}, 'tagSet' => {} }
elsif !@in_subset
when 'tagSet'
@instance['tagSet'][@tag['key']] = @tag['value']
@tag = {}
when nil
@response['reservationSet'] << @reservation
@reservation = { 'groupSet' => [], 'instancesSet' => [] }
end
@ -87,11 +65,7 @@ module Fog
when 'launchTime'
@instance[name] = Time.parse(value)
when 'name'
if @in_instance_state
@instance['instanceState'][name] = value
elsif @in_state_reason
@instance['stateReason'][name] = value
end
@instance[@context.last][name] = value
when 'ownerId', 'reservationId'
@reservation[name] = value
when 'requestId'
@ -99,15 +73,7 @@ module Fog
when 'productCode'
@instance['productCodes'] << value
when 'state'
if value == 'true'
@instance['monitoring'][name] = true
else
@instance['monitoring'][name] = false
end
when 'stateReason'
@in_state_reason = false
when 'tagSet'
@in_tag_set = false
@instance['monitoring'][name] = (value == 'true')
end
end