Class: Puppet::Pops::Serialization::AbstractReader

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/pops/serialization/abstract_reader.rb

Direct Known Subclasses

JSON::Reader

Instance Method Summary collapse

Constructor Details

#initialize(unpacker, extension_unpacker = nil) ⇒ AbstractReader

Returns a new instance of AbstractReader.

Parameters:

  • unpacker (MessagePack::Unpacker, JSON::Unpacker) —

    The low lever unpacker that delivers the primitive objects

  • extension_unpacker (MessagePack::Unpacker, JSON::Unpacker) (defaults to: nil) —

    Optional unpacker for extensions. Defaults to the unpacker



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 30

def initialize(unpacker, extension_unpacker = nil)
  @read = []
  @unpacker = unpacker
  @extension_unpacker = extension_unpacker.nil? ? unpacker : extension_unpacker
  register_types
end

Instance Method Details

#extension_unpacker ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 83

def extension_unpacker
  @extension_unpacker
end

#primitive_count ⇒ Integer

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns The total count of unique primitive values that has been read.

Returns:

  • (Integer) —

    The total count of unique primitive values that has been read



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 56

def primitive_count
  @read.size
end

#read ⇒ Object

Read an object from the underlying unpacker

Returns:

  • (Object) —

    the object that was read



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 40

def read
  obj = @unpacker.read
  case obj
  when Extension::InnerTabulation
    @read[obj.index]
  when Numeric, Symbol, Extension::NotTabulated, true, false, nil
    # not tabulated
    obj
  else
    @read << obj
    obj
  end
end

#read_payload(data) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Raises:



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 61

def read_payload(data)
  raise SerializationError, "Internal error: Class #{self.class} does not implement method 'read_payload'"
end

#read_tpl(ep) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 71

def read_tpl(ep)
  obj = ep.read
  case obj
  when Integer
    @read[obj]
  else
    @read << obj
    obj
  end
end

#read_tpl_qname(ep) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 66

def read_tpl_qname(ep)
  Array.new(ep.read) { read_tpl(ep) }.join('::')
end

#register_type(extension_number, &block) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 88

def register_type(extension_number, &block)
  @unpacker.register_type(extension_number, &block)
end

#register_types ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/puppet/pops/serialization/abstract_reader.rb', line 93

def register_types
  register_type(Extension::INNER_TABULATION) do |data|
    read_payload(data) { |ep| Extension::InnerTabulation.new(ep.read) }
  end

  register_type(Extension::TABULATION) do |data|
    read_payload(data) { |ep| Extension::Tabulation.new(ep.read) }
  end

  register_type(Extension::ARRAY_START) do |data|
    read_payload(data) { |ep| Extension::ArrayStart.new(ep.read) }
  end

  register_type(Extension::MAP_START) do |data|
    read_payload(data) { |ep| Extension::MapStart.new(ep.read) }
  end

  register_type(Extension::PCORE_OBJECT_START) do |data|
    read_payload(data) { |ep| type_name = read_tpl_qname(ep); Extension::PcoreObjectStart.new(type_name, ep.read) }
  end

  register_type(Extension::OBJECT_START) do |data|
    read_payload(data) { |ep| Extension::ObjectStart.new(ep.read) }
  end

  register_type(Extension::DEFAULT) do |data|
    read_payload(data) { |_ep| Extension::Default::INSTANCE }
  end

  register_type(Extension::COMMENT) do |data|
    read_payload(data) { |ep| Extension::Comment.new(ep.read) }
  end

  register_type(Extension::SENSITIVE_START) do |data|
    read_payload(data) { |_ep| Extension::SensitiveStart::INSTANCE }
  end

  register_type(Extension::REGEXP) do |data|
    read_payload(data) { |ep| Regexp.new(ep.read) }
  end

  register_type(Extension::TYPE_REFERENCE) do |data|
    read_payload(data) { |ep| Types::PTypeReferenceType.new(ep.read) }
  end

  register_type(Extension::SYMBOL) do |data|
    read_payload(data) { |ep| ep.read.to_sym }
  end

  register_type(Extension::TIME) do |data|
    read_payload(data) do |ep|
      sec = ep.read
      nsec = ep.read
      Time::Timestamp.new(sec * 1_000_000_000 + nsec)
    end
  end

  register_type(Extension::TIMESPAN) do |data|
    read_payload(data) do |ep|
      sec = ep.read
      nsec = ep.read
      Time::Timespan.new(sec * 1_000_000_000 + nsec)
    end
  end

  register_type(Extension::VERSION) do |data|
    read_payload(data) { |ep| SemanticPuppet::Version.parse(ep.read) }
  end

  register_type(Extension::VERSION_RANGE) do |data|
    read_payload(data) { |ep| SemanticPuppet::VersionRange.parse(ep.read) }
  end

  register_type(Extension::BASE64) do |data|
    read_payload(data) { |ep| Types::PBinaryType::Binary.from_base64_strict(ep.read) }
  end

  register_type(Extension::BINARY) do |data|
    # The Ruby MessagePack implementation have special treatment for "ASCII-8BIT" strings. They
    # are written as binary data.
    read_payload(data) { |ep| Types::PBinaryType::Binary.new(ep.read) }
  end

  register_type(Extension::URI) do |data|
    read_payload(data) { |ep| URI(ep.read) }
  end
end