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10-04-2008
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problems iterating in RUBY while extracting info from YAML, Pls help!
Hi all, I am stuck with a ruby script that extracts detials from yaml file and processes accordingly. the yaml file Code:
confivnic:
device:
vnic1:
policy:
- L2
mode: active
vnic2:
policy:
- L3
- L4
mode: active
type: aggr
notsoconfi:
device:
vnic9:
policy:
- L2
- L3
mode: "off"
vnic3:
policy:
- L2
- L3
mode: active
vnic6:
policy:
- L3
- L2
mode: active
type: aggr
the ruby script Code:
require 'yaml'
yaml = YAML::load(File.open("testyaml.yaml"))
yaml.each do |name, option|
if option['type'] == "aggr"
names = Array.new
names.push name
while names.size != 0
key = yaml.keys.first
tpl = "dladm create-{{{type}}} {{{sets}}} {{{cmd}}}"
tpl.gsub! '{{{type}}}', yaml[key]['type']
tpl.gsub! '{{{cmd}}}', key
sets = ''
set_tpl = '-l {{{key}}} -L={{{mode}}} -P={{{policy}}} '
yaml[key]['device'].each do |device|
set = set_tpl.dup
set.gsub! '{{{key}}}', device[0]
set.gsub! '{{{mode}}}', device[1]['mode']
set.gsub! '{{{policy}}}', device[1]['policy'].join(',')
sets << set
end
names.pop
end
tpl.gsub! '{{{sets}}}', sets
puts tpl.gsub(/\s+/,' ')
end
end
The o/p i get is like this Code:
dladm create-aggr -l vnic9 -L=off -P=L2,L3 -l vnic3 -L=active -P=L2,L3 -l vnic6 -L=active -P=L3,L2 notsoconfi dladm create-aggr -l vnic9 -L=off -P=L2,L3 -l vnic3 -L=active -P=L2,L3 -l vnic6 -L=active -P=L3,L2 notsoconfi but the yaml file has 2 names ,"confivnic" and "notsoconfi" This was written originally for just one module but for obvious reasons we had to change it. I tried all i knew but really not finding a way out. The things that i feel are creating errors are yaml.keys.first or the way iteration is done. The o/p i want is similar to the shown one but instead of repeating the same one twice i want the other one to be displayed as well with the necessary changes. Pls help |
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10-05-2008
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Yes, one of your problems is the repeated calls to yaml.keys.first. (will always return 'notsoconfi') The following code delivers the expected output: Code:
require 'yaml'
set_tpl = '-l {device} -L={mode} -P={policy} '
yaml = YAML::load(File.open("testyaml.yaml"))
yaml.each do |name, option|
if option['type'] == "aggr"
tpl = 'dladm create-{type} {sets} {cmd}'
tpl.gsub! '{type}', option['type']
tpl.gsub! '{cmd}', name
sets = ""
yaml[name]['device'].each do |device|
set = set_tpl.dup
set.gsub! '{device}', device[0]
set.gsub! '{mode}', device[1]['mode']
set.gsub! '{policy}', device[1]['policy'].join(',')
sets << set
end
tpl.gsub! '{sets}', sets
puts tpl.gsub(/\s+/,' ')
end
end
Code:
dladm create-aggr -l vnic9 -L=off -P=L2,L3 -l vnic3 -L=active -P=L2,L3 -l vnic6 -L=active -P=L3,L2 notsoconfi dladm create-aggr -l vnic1 -L=active -P=L2 -l vnic2 -L=active -P=L3,L4 confivnic |
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