Class: Dor::WorkflowDs

Inherits:
ActiveFedora::OmDatastream
  • Object
show all
Includes:
SolrDocHelper
Defined in:
lib/dor/datastreams/workflow_ds.rb

Overview

TODO: class docs

Instance Method Summary collapse

Methods included from SolrDocHelper

#add_solr_value

Constructor Details

#initialize(*args) ⇒ WorkflowDs

Returns a new instance of WorkflowDs.



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# File 'lib/dor/datastreams/workflow_ds.rb', line 21

def initialize(*args)
  self.field_mapper = UtcDateFieldMapper.new
  super
end

Instance Method Details

#content ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 44

def content
  @content ||= Dor::WorkflowService.get_workflow_xml 'dor', pid, nil
rescue RestClient::ResourceNotFound
  xml = Nokogiri::XML(%(<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\n<workflows objectId="#{pid}"/>))
  digital_object.datastreams.keys.each do |dsid|
    next unless dsid =~ /WF$/
    ds_content = Nokogiri::XML(Dor::WorkflowService.get_workflow_xml 'dor', pid, dsid)
    xml.root.add_child(ds_content.root)
  end
  @content ||= xml.to_xml
end

#current_priority ⇒ Integer

Finds the first workflow that is expedited, then returns the value of its priority

Returns:

  • (Integer) —

    value of the priority. Defaults to 0 if none of the workflows are expedited



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# File 'lib/dor/datastreams/workflow_ds.rb', line 76

def current_priority
  cp = workflows.detect &:expedited?
  return 0 if cp.nil?
  cp.priority.to_i
end

#ensure_xml_loaded ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 35

def ensure_xml_loaded
  ng_xml
  self.xml_loaded = true
end

#get_workflow(wf, repo = 'dor') ⇒ Object Also known as: [] 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 26

def get_workflow(wf, repo = 'dor')
  xml = Dor::WorkflowService.get_workflow_xml(repo, pid, wf)
  xml = Nokogiri::XML(xml)
  return nil if xml.xpath('workflow').length == 0
  Workflow::Document.new(xml.to_s)
end

#graph(dir = nil) ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 60

def graph(dir = nil)
  result = GraphViz.digraph(pid)
  sg = result.add_graph('rank') { |g| g[:rank => 'same'] }
  workflows.each do |wf|
    unless wf.nil?
      g = wf.graph(result)
      sg.add_node(g.root.id) unless g.nil?
    end
  end
  result['rankdir'] = dir || 'TB'
  result
end

#ng_xml ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 40

def ng_xml
  @ng_xml ||= Nokogiri::XML::Document.parse(content)
end

#to_solr(solr_doc = {}, *args) ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 82

def to_solr(solr_doc = {}, *args)
  # super solr_doc, *args
  workflows.each { |wf| wf.to_solr(solr_doc, *args) }
  solr_doc
end

#workflows ⇒ Object 



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# File 'lib/dor/datastreams/workflow_ds.rb', line 56

def workflows
  @workflows ||= workflow.nodeset.collect { |wf_node| Workflow::Document.new wf_node.to_xml }
end