Class: Resync::XML::HashCodesNode

Inherits:
XML::Mapping::SingleAttributeNode
  • Object
show all
Defined in:
lib/resync/xml.rb

Overview

Maps the whitespace-separated list of hash codes in a <rs:ln> or <rs:md> tag to a hash of digest values keyed by hash algorithm. (See Descriptor#hashes.)

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ HashCodesNode

Returns a new instance of HashCodesNode.



191
192
193
194
195
 
# File 'lib/resync/xml.rb', line 191

def initialize(*args)
  path, *args = super(*args)
  @path = ::XML::XXPath.new(path)
  args
end

Instance Method Details

#extract_attr_value(xml) ⇒ Object

Implements ::XML::Mapping::SingleAttributeNode#extract_attr_value.



198
199
200
201
202
203
 
# File 'lib/resync/xml.rb', line 198

def extract_attr_value(xml)
  hashes = default_when_xpath_err { @path.first(xml).text }
  return {} unless hashes
  return hashes if hashes.is_a?(Hash)
  hashes.split(/[[:space:]]+/).map { |hash| hash.split(':') }.to_h
end

#set_attr_value(xml, value) ⇒ Object

Implements ::XML::Mapping::SingleAttributeNode#set_attr_value.



206
207
208
209
210
 
# File 'lib/resync/xml.rb', line 206

def set_attr_value(xml, value)
  return if value.empty?
  hash_str = value.map { |k, v| "#{k}:#{v}" }.join(' ')
  @path.first(xml, ensure_created: true).text = hash_str
end