Class: OpenC3::XmlAccessor

Inherits:
Accessor show all
Defined in:
lib/openc3/accessors/xml_accessor.rb

Direct Known Subclasses

HtmlAccessor

Class Method Summary collapse

Methods inherited from Accessor

convert_to_type, #read_item, #write_item

Class Method Details

.buffer_to_doc(buffer) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 61

def self.buffer_to_doc(buffer)
  Nokogiri.XML(buffer)
end

.doc_to_buffer(doc) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 65

def self.doc_to_buffer(doc)
  doc.to_xml
end

.read_item(item, buffer) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 24

def self.read_item(item, buffer)
  return nil if item.data_type == :DERIVED
  doc = buffer_to_doc(buffer)
  return convert_to_type(doc.xpath(item.key).first.to_s, item)
end

.read_items(items, buffer) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 38

def self.read_items(items, buffer)
  doc = buffer_to_doc(buffer)
  result = {}
  items.each do |item|
    if item.data_type == :DERIVED
      result[item.name] = nil
    else
      result[item.name] = convert_to_type(doc.xpath(item.key).first.to_s, item)
    end
  end
  return result
end

.write_item(item, value, buffer) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 30

def self.write_item(item, value, buffer)
  return nil if item.data_type == :DERIVED
  doc = buffer_to_doc(buffer)
  node = doc.xpath(item.key).first
  node.content = value.to_s
  buffer.replace(doc_to_buffer(doc))
end

.write_items(items, values, buffer) ⇒ Object 



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# File 'lib/openc3/accessors/xml_accessor.rb', line 51

def self.write_items(items, values, buffer)
  doc = buffer_to_doc(buffer)
  items.each_with_index do |item, index|
    next if item.data_type == :DERIVED
    node = doc.xpath(item.key).first
    node.content = values[index].to_s
  end
  buffer.replace(doc_to_buffer(doc))
end