Class: HQMF2::SubsetOperator

Inherits:
Object
  • Object
show all
Includes:
Utilities
Defined in:
lib/hqmf-parser/2.0/types.rb

Overview

Represents a subset of a specific group (the first in the group, the sum of the group, etc.)

Constant Summary collapse

ORDER_SUBSETS = 
%w(FIRST SECOND THIRD FOURTH FIFTH)
LAST_SUBSETS = 
%w(LAST RECENT)
TIME_SUBSETS = 
%w(DATEDIFF TIMEDIFF)
QDM_TYPE_MAP = 
{ 'QDM_LAST:' => 'RECENT', 'QDM_SUM:SUM' => 'COUNT' }

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utilities

#attr_val, attr_val, #strip_tokens, #to_xml

Methods included from HQMF::Conversion::Utilities

#build_hash, #check_equality, #json_array, #openstruct_to_json

Constructor Details

#initialize(entry) ⇒ SubsetOperator

Returns a new instance of SubsetOperator.



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# File 'lib/hqmf-parser/2.0/types.rb', line 267

def initialize(entry)
  @entry = entry

  sequence_number = attr_val('./cda:sequenceNumber/@value')
  qdm_subset_code = attr_val('./qdm:subsetCode/@code')
  subset_code = attr_val('./cda:subsetCode/@code')
  if sequence_number
    @type = ORDER_SUBSETS[sequence_number.to_i - 1]
  else
    @type = translate_type(subset_code, qdm_subset_code)
  end

  value_def = handle_value_definition
  @value = HQMF2::Range.new(value_def, 'IVL_PQ') if value_def && !@value
end

Instance Attribute Details

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/hqmf-parser/2.0/types.rb', line 261

def type
  @type
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/hqmf-parser/2.0/types.rb', line 261

def value
  @value
end

Instance Method Details

#handle_value_definition ⇒ Object

Return the value definition (what to calculate it on) associated with this subset. Other values, such as type and value, may be modified depending on this value.



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# File 'lib/hqmf-parser/2.0/types.rb', line 285

def handle_value_definition
  value_def = @entry.at_xpath('./*/cda:repeatNumber', HQMF2::Document::NAMESPACES)
  unless value_def
    # TODO: HQMF needs better differentiation between SUM & COUNT...
    # currently using presence of repeatNumber...
    @type = 'SUM' if @type == 'COUNT'
    value_def = @entry.at_xpath('./*/cda:value', HQMF2::Document::NAMESPACES)
  end

  # TODO: Resolve extracting values embedded in criteria within outboundRel's
  if @type == 'SUM'
    value_def = @entry.at_xpath('./*/*/*/cda:value', HQMF2::Document::NAMESPACES)
  end

  if value_def
    value_type = value_def.at_xpath('./@xsi:type', HQMF2::Document::NAMESPACES)
    @value = HQMF2::AnyValue.new if String.try_convert(value_type) == 'ANY'
  end

  value_def
end

#to_model ⇒ Object

Generates this classes hqmf-model equivalent



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# File 'lib/hqmf-parser/2.0/types.rb', line 318

def to_model
  vm = value ? value.to_model : nil
  HQMF::SubsetOperator.new(type, vm)
end

#translate_type(subset_code, qdm_subset_code) ⇒ Object

Take a qdm type code to map it to a subset operator, or failing at finding that, return the given subset code.



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# File 'lib/hqmf-parser/2.0/types.rb', line 308

def translate_type(subset_code, qdm_subset_code)
  combined = "#{qdm_subset_code}:#{subset_code}"
  if QDM_TYPE_MAP[combined]
    QDM_TYPE_MAP[combined]
  else
    subset_code
  end
end