Last change
on this file since 30903 was 30903, checked in by davidb, 8 years ago |
Vagrant provisioning files for a 4-node Hadoop cluster. See README.txt for more details
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File size:
955 bytes
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[30903] | 1 | module Puppet::Parser::Functions
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| 2 | newfunction(:loadjson, :type => :rvalue, :arity => -2, :doc => <<-'ENDHEREDOC') do |args|
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| 3 | Load a JSON file containing an array, string, or hash, and return the data
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| 4 | in the corresponding native data type.
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| 5 | The second parameter is the default value. It will be returned if the file
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| 6 | was not found or could not be parsed.
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| 7 |
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| 8 | For example:
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| 9 |
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| 10 | $myhash = loadjson('/etc/puppet/data/myhash.json')
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| 11 | $myhash = loadjson('no-file.json', {'default' => 'value'})
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| 12 | ENDHEREDOC
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| 13 |
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| 14 | raise ArgumentError, 'Wrong number of arguments. 1 or 2 arguments should be provided.' unless args.length >= 1
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| 15 |
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| 16 | if File.exists?(args[0])
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| 17 | begin
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| 18 | content = File.read(args[0])
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| 19 | PSON::load(content) || args[1]
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| 20 | rescue Exception => e
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| 21 | if args[1]
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| 22 | args[1]
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| 23 | else
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| 24 | raise e
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| 25 | end
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| 26 | end
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| 27 | else
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| 28 | warning("Can't load '#{args[0]}' File does not exist!")
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| 29 | args[1]
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| 30 | end
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| 31 |
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| 32 | end
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| 33 |
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| 34 | end
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