Module: CPEE::Logging

Defined in:
lib/cpee-logging-xes-yaml/tools.rb,
lib/cpee-logging-xes-yaml/logging.rb

Defined Under Namespace

Classes: Handler

Constant Summary collapse

SERVER = 
File.expand_path(File.join(__dir__,'logging.xml'))

Class Method Summary collapse

Class Method Details

.doc(topic, event_name, log_dir, template, payload) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 110

def self::doc(topic,event_name,log_dir,template,payload)
  notification = JSON.parse(payload)
  instance = notification['instance-uuid']
  return unless instance

  instancenr = notification['instance']
  content = notification['content']
  activity = content['activity']
  parameters = content['parameters']
  receiving = content['received']

  if content['dslx']
    CPEE::Logging::extract_probes(File.join(log_dir,instance),content['dslx'])
  end

  if topic == 'dataelements' && event_name == 'change'
    if content['changed']&.any?
      CPEE::Logging::persist_values(File.join(log_dir,instance + '.data.json'),content['values'])
    end
  end

  log = YAML::load(File.read(template))
  log["log"]["trace"]["concept:name"] ||= instancenr
  log["log"]["trace"]["cpee:name"] ||= notification['instance-name'] if notification['instance-name']
  log["log"]["trace"]["cpee:instance"] ||= instance
  File.open(File.join(log_dir,instance+'.xes.yaml'),'w'){|f| f.puts log.to_yaml} unless File.exists? File.join(log_dir,instance+'.xes.yaml')
  event = {}
  event["concept:instance"] = instancenr
  event["concept:name"] = content["label"] if content["label"]
  if content["endpoint"]
    event["concept:endpoint"] = content["endpoint"]
  end
  event["id:id"] = (activity.nil? || activity == "") ? 'external' : activity
  event["cpee:activity"] = event["id:id"]
  event["cpee:activity_uuid"] = content['activity-uuid'] if content['activity-uuid']
  event["cpee:instance"] = instance
  case event_name
    when 'receiving', 'change', 'instantiation'
      event["lifecycle:transition"] = "unknown"
    when 'done'
      event["lifecycle:transition"] = "complete"
    else
      event["lifecycle:transition"] = "start"
  end
  event["cpee:lifecycle:transition"] = "#{topic}/#{event_name}"
  event["cpee:state"] = content['state'] if content['state']
  event["cpee:description"] = content['dslx'] if content['dslx']
  unless parameters["arguments"]&.nil?
    event["data"] = parameters["arguments"]
  end if parameters
  if content['changed']&.any?
    event["data"] = content['values'].map do |k,v|
      { 'name' => k, 'value' => v }
    end

    fname = File.join(log_dir,instance + '_' + event["id:id"] + '.probe')
    dname = File.join(log_dir,instance + '.data.json')

    if File.exists?(fname)
      rs = WEEL::ReadStructure.new(File.exists?(dname) ? JSON::load(File::open(dname)) : {},{},{})
      XML::Smart::open_unprotected(fname) do |doc|
        doc.register_namespace 'd', 'http://cpee.org/ns/description/1.0'
        doc.find('//d:probe[d:extractor_type="intrinsic"]').each do |p|
          event['stream:sensorstream'] ||= []
          val = CPEE::Logging::extract_sensor(rs,p.find('string(d:extractor_code)'),nil) rescue nil
          CPEE::Logging::val_merge(event['stream:sensorstream'],val,p.find('string(d:id)'),p.find('string(d:source)'))
        end
      end
    end
  end
  if receiving && !receiving.empty?
    fname = File.join(log_dir,instance + '_' + event["id:id"] + '.probe')
    dname = File.join(log_dir,instance + '.data.json')

    if File.exists?(fname)
      te = event.dup

      rs = WEEL::ReadStructure.new(File.exists?(dname) ? JSON::load(File::open(dname)) : {},{},{})
      XML::Smart::open_unprotected(fname) do |doc|
        doc.register_namespace 'd', 'http://cpee.org/ns/description/1.0'
        if doc.find('//d:probe/d:extractor_type[.="extrinsic"]').any?
          rc = CPEE::Logging::extract_result(receiving)
          doc.find('//d:probe[d:extractor_type="extrinsic"]').each do |p|
            te['stream:sensorstream'] ||= []
            val = CPEE::Logging::extract_sensor(rs,p.find('string(d:extractor_code)'),rc) rescue nil
            CPEE::Logging::val_merge(te['stream:sensorstream'],val,p.find('string(d:id)'),p.find('string(d:source)'))
          end
        end
      end
      if te['stream:sensorstream']
        te["cpee:lifecycle:transition"] = "sensor/stream"
        File.open(File.join(log_dir,instance+'.xes.yaml'),'a') do |f|
          f << {'event' => te}.to_yaml
        end
      end
    end

    event["raw"] = receiving
  end
  event["time:timestamp"]= event['cpee:timestamp'] || Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z")
  File.open(File.join(log_dir,instance+'.xes.yaml'),'a') do |f|
    f << {'event' => event}.to_yaml
  end
end

.extract_probes(where, xml) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 49

def self::extract_probes(where,xml)
  XML::Smart::string(xml) do |doc|
    doc.register_namespace 'd', 'http://cpee.org/ns/description/1.0'
    doc.find('//d:call').each do |c|
      File.unlink(where + '_' + c.attributes['id'] + '.probe') rescue nil
      c.find('d:annotations/d:_context_data_analysis/d:probes[d:probe]').each do |p|
        File.write(where + '_' + c.attributes['id'] + '.probe', p.dump)
      end
    end
  end
end

.extract_result(result) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 61

def self::extract_result(result)
  p result
  ret = result.map do |res|
    if res['mimetype'].nil?
      res['value']
    elsif res['mimetype'] == 'application/json'
      JSON::parse(res['data'])
    elsif res['mimetype'] == 'application/xml' || res['mimetype'] == 'text/xml'
      XML::Smart::string(res['data']) rescue nil
    elsif res.mimetype == 'text/yaml'
      YAML::load(res['data']) rescue nil
    elsif result[0].mimetype == 'text/plain'
      t = res['data']
      if t.start_with?("<?xml version=")
        t = XML::Smart::string(t)
      else
        t = t.to_f if t == t.to_f.to_s
        t = t.to_i if t == t.to_i.to_s
      end
      t
    elsif res.mimetype == 'text/html'
      t = res['data']
      t = t.to_f if t == t.to_f.to_s
      t = t.to_i if t == t.to_i.to_s
      t
    else
      res['data']
    end
  end
  ret.length == 1 ? ret[0] : ret
end

.extract_sensor(rs, code, result) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 93

def self::extract_sensor(rs,code,result)
  rs.instance_eval(code)
end

.implementation(opts) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/logging.rb', line 45

def self::implementation(opts)
  opts[:log_dir] ||= File.join(__dir__,'logs')
  opts[:template] ||= File.join(__dir__,'template.xes_yaml')

  Proc.new do
    interface 'events' do
      run Handler, opts[:log_dir], opts[:template] if post 'event'
    end
  end
end

.persist_values(where, values) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 97

def self::persist_values(where,values)
  unless File.exists?(where)
    File.write(where,'{}')
  end
  f = File.open(where,'r+')
  f.flock(File::LOCK_EX)
  json = JSON::load(f).merge(values)
  f.rewind
  f.truncate(0)
  f.write(JSON.generate(json))
  f.close
end

.val_merge(target, val, tid, tso) ⇒ Object 



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# File 'lib/cpee-logging-xes-yaml/tools.rb', line 27

def self::val_merge(target,val,tid,tso)
  if val.is_a? Array
    val.each do |e|
      if e.is_a? StreamPoint
        e.source ||= tso
        target << e.to_h(tid)
      end
    end
  else
    tp = nil
    if val.is_a? StreamPoint
      tp = val
      tp.source = tso if tp.source.nil?
    else
      tp = StreamPoint.new
      tp.source =  tso
      tp.value = val
    end
    target << tp.to_h(tid)
  end
end