Class: Puppet::Pops::Serialization::Serializer

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

Overview

The serializer is capable of writing, arrays, maps, and complex objects using an underlying protocol writer. It takes care of tabulating and disassembling complex objects.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(writer, options = EMPTY_HASH) ⇒ Serializer

Returns a new instance of Serializer.

Parameters:

  • writer (AbstractWriter) —

    the writer that is used for writing primitive values

  • options ({String, Object}) (defaults to: EMPTY_HASH) —

    serialization options

Options Hash (options):

  • :type_by_reference (Boolean) —

    ‘true` if Object types are serialized by name only.



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# File 'lib/puppet/pops/serialization/serializer.rb', line 18

def initialize(writer, options = EMPTY_HASH)
  @written = {}
  @writer = writer
  @options = options
end

Instance Attribute Details

#writer ⇒ Object (readonly)

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.

Provides access to the writer.



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# File 'lib/puppet/pops/serialization/serializer.rb', line 12

def writer
  @writer
end

Instance Method Details

#finish ⇒ Object

Tell the underlying writer to finish



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# File 'lib/puppet/pops/serialization/serializer.rb', line 26

def finish
  @writer.finish
end

#inspect ⇒ Object 



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# File 'lib/puppet/pops/serialization/serializer.rb', line 96

def inspect
  to_s
end

#push_written(value) ⇒ Object 



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# File 'lib/puppet/pops/serialization/serializer.rb', line 78

def push_written(value)
  @written[value.object_id] = @written.size
end

#start_array(size) ⇒ 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.

Write the start of an array.

Parameters:

  • size (Integer) —

    the size of the array



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# File 'lib/puppet/pops/serialization/serializer.rb', line 52

def start_array(size)
  @writer.write(Extension::ArrayStart.new(size))
end

#start_map(size) ⇒ 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.

Write the start of a map (hash).

Parameters:

  • size (Integer) —

    the number of entries in the map



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# File 'lib/puppet/pops/serialization/serializer.rb', line 59

def start_map(size)
  @writer.write(Extension::MapStart.new(size))
end

#start_object(attr_count) ⇒ 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.

Write the start of a complex object

Parameters:

  • attr_count (Integer) —

    the number of attributes in the object



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# File 'lib/puppet/pops/serialization/serializer.rb', line 74

def start_object(attr_count)
  @writer.write(Extension::ObjectStart.new(attr_count))
end

#start_pcore_object(type_ref, attr_count) ⇒ 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.

Write the start of a complex pcore object

Parameters:

  • type_ref (String) —

    the name of the type

  • attr_count (Integer) —

    the number of attributes in the object



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# File 'lib/puppet/pops/serialization/serializer.rb', line 67

def start_pcore_object(type_ref, attr_count)
  @writer.write(Extension::PcoreObjectStart.new(type_ref, attr_count))
end

#start_sensitive ⇒ 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.

Write the start of a sensitive object



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# File 'lib/puppet/pops/serialization/serializer.rb', line 84

def start_sensitive
  @writer.write(Extension::SensitiveStart::INSTANCE)
end

#to_s ⇒ Object 



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# File 'lib/puppet/pops/serialization/serializer.rb', line 92

def to_s
  "#{self.class.name} with #{@writer}"
end

#type_by_reference? ⇒ Boolean

Returns:

  • (Boolean) 


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

def type_by_reference?
  @options[:type_by_reference] == true
end

#write(value) ⇒ Object

Write an object

Parameters:

  • value (Object) —

    the object to write



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# File 'lib/puppet/pops/serialization/serializer.rb', line 33

def write(value)
  case value
  when Integer, Float, String, true, false, nil
    @writer.write(value)
  when :default
    @writer.write(Extension::Default::INSTANCE)
  else
    index = @written[value.object_id]
    if index.nil?
      write_tabulated_first_time(value)
    else
      @writer.write(Extension::Tabulation.new(index))
    end
  end
end

#write_tabulated_first_time(value) ⇒ 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.

First time write of a tabulated object. This means that the object is written and then remembered. Subsequent writes of the same object will yield a write of a tabulation index instead.

Parameters:

  • value (Object) —

    the value to write



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# File 'lib/puppet/pops/serialization/serializer.rb', line 104

def write_tabulated_first_time(value)
  case
  when value.instance_of?(Symbol),
      value.instance_of?(Regexp),
      value.instance_of?(SemanticPuppet::Version),
      value.instance_of?(SemanticPuppet::VersionRange),
      value.instance_of?(Time::Timestamp),
      value.instance_of?(Time::Timespan),
      value.instance_of?(Types::PBinaryType::Binary),
      value.is_a?(URI)
    push_written(value)
    @writer.write(value)
  when value.instance_of?(Array)
    push_written(value)
    start_array(value.size)
    value.each { |elem| write(elem) }
  when value.instance_of?(Hash)
    push_written(value)
    start_map(value.size)
    value.each_pair { |key, val| write(key); write(val) }
  when value.instance_of?(Types::PSensitiveType::Sensitive)
    start_sensitive
    write(value.unwrap)
  when value.instance_of?(Types::PTypeReferenceType)
    push_written(value)
    @writer.write(value)
  when value.is_a?(Types::PuppetObject)
    value._pcore_type.write(value, self)
  else
    impl_class = value.class
    type = Loaders.implementation_registry.type_for_module(impl_class)
    raise SerializationError, _("No Puppet Type found for %{klass}") % { klass: impl_class.name } unless type.is_a?(Types::PObjectType)
    type.write(value, self)
  end
end