Class: Taverna::Baclava::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/baclava/reader.rb

Class Method Summary collapse

Class Method Details

.create_data_map(element) ⇒ Object

:stopdoc:



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# File 'lib/baclava/reader.rb', line 56

def self.create_data_map(element)
  data_map = {}

  element.each_element('b:dataThing') do |datathing|
    key = datathing.attribute('key').value
    data = Node.new
    data_map[key] = data
    datathing.each_element('b:myGridDataDocument')  do |dataDocument|
      dataDocument.each_element('s:metadata') do |metadata|
        data.annotation = get_metadata(metadata)
      end
      dataDocument.each_element('b:partialOrder') do |partialOrder|
        data.value = get_list(partialOrder)
      end
      dataDocument.each_element('b:dataElement') do |dataElement|
        data.value = get_element(dataElement)
      end
    end
  end

  data_map
end

.get_element(element) ⇒ Object 



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# File 'lib/baclava/reader.rb', line 102

def self.get_element(element)
  element.each_element('b:dataElementData') do |data|
    text = data.text
    return text.nil? ? "" : Base64.decode64(text)
  end
end

.get_list(element) ⇒ Object 



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# File 'lib/baclava/reader.rb', line 79

def self.get_list(element)
  list = []
  element.each_element('b:itemList') do |itemList|
    itemList.each_element('b:dataElement') do |dataElement|
      list << get_element(dataElement)
    end
    itemList.each_element('b:partialOrder') do |partialOrder|
      list << get_list(partialOrder)
    end
  end
  list
end

.get_metadata(element) ⇒ Object 



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# File 'lib/baclava/reader.rb', line 92

def self.get_metadata(element)
  list = []
  element.each_element('s:mimeTypes') do |mimeTypes|
    mimeTypes.each_element('s:mimeType') do |mimeType|
      list << mimeType.text
    end
  end
  list
end

.read(xml) ⇒ Object

Reads a baclava document and returns a hash of Baclava::Node objects.



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# File 'lib/baclava/reader.rb', line 42

def self.read(xml)
  if xml.kind_of?(REXML::Document)
    document = xml
  else
    document = REXML::Document.new(xml)
  end
  root = document.root
  raise "'#{root.name}' doesn't appear to be a data thing!" if root.name != "dataThingMap"

  create_data_map(root)
end