Class: Schemata::ParsedMessage

Inherits:
Object
  • Object
show all
Defined in:
lib/schemata/common/parsed_msg.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(json) ⇒ ParsedMessage

Returns a new instance of ParsedMessage.



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# File 'lib/schemata/common/parsed_msg.rb', line 10

def initialize(json)
  @contents = Yajl::Parser.parse(json)

  @min_version = @contents['min_version']
  if !@min_version
    raise DecodeError.new("Field 'min_version' abset from message")
  end

  versions = []
  @contents.keys.each do |k|
    next if k == 'min_version'
    unless k =~ /^V[0-9]+$/
      raise DecodeError.new("Invalid key: #{k}")
    end
    versions << k[1..-1].to_i
  end

  if versions.empty?
    raise DecodeError.new("Message contains no versioned hashes")
  end

  if Set.new(versions.min..versions.max) != Set.new(versions)
    raise DecodeError.new("There are versions missing between\
 #{versions.min} and #{versions.max}")
  end

  @version = versions.max
end

Instance Attribute Details

#min_version ⇒ Object (readonly)

Returns the value of attribute min_version.



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# File 'lib/schemata/common/parsed_msg.rb', line 8

def min_version
  @min_version
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/schemata/common/parsed_msg.rb', line 8

def version
  @version
end

Instance Method Details

#contents ⇒ Object 



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# File 'lib/schemata/common/parsed_msg.rb', line 39

def contents
  Schemata::HashCopyHelpers.deep_copy(@contents)
end