Class: DefaultHandlerWrapper

Inherits:
WEEL::HandlerWrapperBase
  • Object
show all
Defined in:
lib/cpee-handlerwrapper-opcua.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arguments, position = nil, continue = nil) ⇒ DefaultHandlerWrapper

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 41

def initialize(arguments,position=nil,continue=nil) # {{{
  @controller = arguments[0]
  @handler_continue = continue
  @handler_position = position
  @handler_passthrough = nil
  @handler_returnValue = nil
  @handler_returnOptions = nil
  @label = ''
end

Class Method Details

.inform_handlerwrapper_error(arguments, err) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 28

def self::inform_handlerwrapper_error(arguments,err) # {{{
  controller = arguments[0]
  controller.notify("handlerwrapper/error", :instance => controller.instance, :instance_uuid => controller.uuid, :message => err.message, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
end

.inform_position_change(arguments, ipc = {}) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 32

def self::inform_position_change(arguments,ipc={}) # {{{
  controller = arguments[0]
  controller.serialize_positions!
  ipc[:instance] = controller.instance
  ipc[:instance_uuid] = controller.uuid
  ipc[:timestamp] = Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z")
  controller.notify("position/change", ipc)
end

.inform_state_change(arguments, newstate) ⇒ Object

{{{



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 18

def self::inform_state_change(arguments,newstate) # {{{
  controller = arguments[0]
controller.serialize_state!
controller.notify("state/change", :instance => controller.instance, :instance_uuid => controller.uuid, :state => newstate, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
controller.finalize_if_finished
end

.inform_syntax_error(arguments, err, code) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 24

def self::inform_syntax_error(arguments,err,code)# {{{
  controller = arguments[0]
  controller.notify("description/error", :instance => controller.instance, :instance_uuid => controller.uuid, :message => err.message, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
end

Instance Method Details

#activity_handle(passthrough, parameters) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 65

def activity_handle(passthrough, parameters) # {{{
  raise "Wrong endpoint" if @handler_endpoint.nil? || @handler_endpoint.empty?
  @label = parameters[:label]
  @sensors = parameters[:sensors]
  @aggregators = parameters[:aggregators]
  @costs = parameters[:costs]
  @controller.notify("activity/calling", :instance => @controller.instance, :instance_uuid => @controller.uuid, :label => @label, :instance_name => @controller.info, :activity => @handler_position, :passthrough => passthrough, :endpoint => @handler_endpoint, :parameters => parameters, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
  if passthrough.to_s.empty?
    if @handler_endpoint.start_with?('opc.tcp')
      if @handler_endpoint =~ /^opc\.tcp-read:\/\/([^\/]+)\/(\d+)\/(.+)/
        nid = $3 == $3.to_i.to_s ? $3.to_i : $3
        ns  = $2
        url = 'opc.tcp://' + $1
        client = OPCUA::Client.new(url)
        if (node = client.get ns.to_i, nid)
          result = node.value
        else
          raise 'invalid nodeid'
        end
        client.disconnect
        callback [Riddl::Parameter::Simple.new('value',result)], {}
      elsif @handler_endpoint =~ /^opc\.tcp-write:\/\/([^\/]+)\/(\d+)\/([^\?]+)(\?value=(.*))?/
        nid = $3 == $3.to_i.to_s ? $3.to_i : $3
        ns  = $2
        par = $5
        url = 'opc.tcp://' + $1
        client = OPCUA::Client.new(url)
        if (node = client.get ns.to_i, nid)
          (parameters[:arguments] || [→(:name => 'value', :value => par)] || []).each do |ele|
            what = CPEE::ValueHelper::parse_extended(ele.value)
            node.value = what
            result = what
          end
        else
          raise 'invalid nodeid'
        end
        client.disconnect
        callback [Riddl::Parameter::Simple.new('value',result)], {}
      elsif @handler_endpoint =~ /^opc\.tcp-execute:\/\/([^\/]+)\/(\d+)\/([^\?]+)(\?value=(.*))?/
        nid = $3 == $3.to_i.to_s ? $3.to_i : $3
        ns  = $2
        par = $5
        url = 'opc.tcp://' + $1
        client = OPCUA::Client.new(url)
        if (node = client.get ns.to_i, nid)
          params = []
          (parameters[:arguments] || []).each do |ele|
            what = CPEE::ValueHelper::parse_extended(ele.value)
            params << what
          end
          result = node.call *params
        else
          raise 'invalid nodeid'
        end
        client.disconnect
        callback [Riddl::Parameter::Simple.new('value',result)], {}
      end
    else
      params = []
      callback = Digest::MD5.hexdigest(Kernel::rand().to_s)
      (parameters[:arguments] || []).each do |s|
        if s.respond_to?(:mimetype)
          params <<  Riddl::Parameter::Complex.new(s.name.to_s,v.mimetype,v.value)
        else
          if s.name.to_s =~ /^__Q_/
            params <<  Riddl::Parameter::Simple.new(s.name.to_s.sub(/^__Q_/,''),CPEE::ValueHelper::generate(s.value),:query)
          elsif s.name.to_s =~ /^__B_/
            params <<  Riddl::Parameter::Simple.new(s.name.to_s.sub(/^__B_/,''),CPEE::ValueHelper::generate(s.value),:body)
          elsif s.name.to_s =~ /^__H_/
            params <<  Riddl::Header.new(s.name.to_s.sub(/^__H_/,''),CPEE::ValueHelper::generate(s.value))
          elsif s.name.to_s =~ /^__C_/
            params <<  Riddl::Parameter::Complex.new(s.name.to_s.sub(/^__C_/,''),*CPEE::ValueHelper::generate(s.value).split(';',2))
          else
            params <<  Riddl::Parameter::Simple.new(s.name.to_s,CPEE::ValueHelper::generate(s.value))
          end
        end
      end

      params << Riddl::Header.new("CPEE-BASE",@controller.base_url)
      params << Riddl::Header.new("CPEE-INSTANCE",@controller.instance)
      params << Riddl::Header.new("CPEE-INSTANCE-URL",@controller.instance_url)
      params << Riddl::Header.new("CPEE-INSTANCE-UUID",@controller.uuid)
      params << Riddl::Header.new("CPEE-CALLBACK",@controller.instance_url + '/callbacks/' + callback)
      params << Riddl::Header.new("CPEE-CALLBACK-ID",callback)
      params << Riddl::Header.new("CPEE-ACTIVITY",@handler_position)
      params << Riddl::Header.new("CPEE-LABEL",parameters[:label]||'')
      @controller.attributes.each do |key,value|
        params << Riddl::Header.new("CPEE-ATTR-#{key.to_s.gsub(/_/,'-')}",value)
      end

      tendpoint = @handler_endpoint.sub(/^http(s)?-(get|put|post|delete):/,'http\\1:')
      type = $2 || parameters[:method] || 'post'

      client = Riddl::Client.new(tendpoint)

      @controller.callbacks[callback] = CPEE::Callback.new("callback activity: #{@handler_position}",self,:callback,nil,nil,:http)
      @handler_passthrough = callback

      status, result, headers = client.request type => params
      if status < 200 || status >= 300
        headers['CPEE_SALVAGE'] = true
        c = result[0]&.value
        c = c.read if c.respond_to? :read
        callback([ Riddl::Parameter::Complex.new('error','application/json',StringIO.new(JSON::generate({ 'status' => status, 'error' => c }))) ], headers)
      else
        if headers['CPEE_INSTANTIATION']
          @controller.notify("task/instantiation", :instance => @controller.instance, :label => @label, :instance_name => @controller.info, :instance_uuid => @controller.uuid, :activity => @handler_position, :endpoint => @handler_endpoint, :received => CPEE::ValueHelper.parse(headers['CPEE_INSTANTIATION']), :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
        end
        if headers['CPEE_CALLBACK'] && headers['CPEE_CALLBACK'] == 'true' && result.any?
          headers['CPEE_UPDATE'] = true
          callback result, headers
        elsif headers['CPEE_CALLBACK'] && headers['CPEE_CALLBACK'] == 'true' && result.empty?
          # do nothing, later on things will happend
        else
          callback result, headers
        end
      end
    end
  else
    @controller.callbacks[passthrough] = CPEE::Callback.new("callback activity: #{@handler_position}",self,:callback,nil,nil,:http)
    @handler_passthrough = passthrough
  end
end

#activity_manipulate_handle(parameters) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 188

def activity_manipulate_handle(parameters) #{{{
  @label = parameters[:label]
end

#activity_no_longer_necessary ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 208

def activity_no_longer_necessary # {{{
  true
end

#activity_passthrough_value ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 204

def activity_passthrough_value # {{{
  @handler_passthrough
end

#activity_result_options ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 195

def activity_result_options # {{{
  @handler_returnOptions
end

#activity_result_value ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 192

def activity_result_value # {{{
  @handler_returnValue
end

#activity_stop ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 199

def activity_stop # {{{
  unless @handler_passthrough.nil?
    @controller.callbacks.delete(@handler_passthrough)
  end
end

#callback(result = nil, options = {}) ⇒ Object 



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 300

def callback(result=nil,options={})
  @controller.notify("activity/receiving", :instance => @controller.instance, :label => @label, :instance_name => @controller.info, :instance_uuid => @controller.uuid, :activity => @handler_position, :endpoint => @handler_endpoint, :received => structurize_result(result), :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated, :sensors => @sensors, :aggregators => @aggregators, :costs => @costs)
  result = simplify_result(result)
  @handler_returnValue = result
  @handler_returnOptions = options
  if options['CPEE_UPDATE']
    if options['CPEE_UPDATE_STATUS']
      @controller.notify("activity/status", :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :endpoint => @handler_endpoint, :status => options['CPEE_UPDATE_STATUS'], :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
    end
    @handler_continue.continue WEEL::Signal::Again
  else
    @controller.callbacks.delete(@handler_passthrough)
    @handler_passthrough = nil
    if options['CPEE_SALVAGE']
      @handler_continue.continue WEEL::Signal::Salvage
    else
      @handler_continue.continue
    end
  end
end

#inform_activity_done ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 212

def inform_activity_done # {{{
  @controller.notify("activity/done", :endpoint => @handler_endpoint, :instance => @controller.instance, :label => @label, :instance_name => @controller.info, :instance_uuid => @controller.uuid, :activity => @handler_position, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
end

#inform_activity_failed(err) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 218

def inform_activity_failed(err) # {{{
  puts err.message
  puts err.backtrace
  @controller.notify("activity/failed", :endpoint => @handler_endpoint, :label => @label, :instance_name => @controller.info, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :message => err.message, :line => err.backtrace[0].match(/(.*?):(\d+):/)[2], :where => err.backtrace[0].match(/(.*?):(\d+):/)[1], :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
end

#inform_activity_manipulate ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 215

def inform_activity_manipulate # {{{
  @controller.notify("activity/manipulating", :endpoint => @handler_endpoint, :instance => @controller.instance, :label => @label, :instance_name => @controller.info, :instance_uuid => @controller.uuid, :activity => @handler_position, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
end

#inform_manipulate_change(status, changed_dataelements, changed_endpoints, dataelements, endpoints) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 223

def inform_manipulate_change(status,changed_dataelements,changed_endpoints,dataelements,endpoints) # {{{
  unless status.nil?
    @controller.serialize_status!
    @controller.notify("status/change", :endpoint => @handler_endpoint, :label => @label, :instance_name => @controller.info, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :id => status.id, :message => status.message, :attributes => @controller.attributes_translated, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
  end
  unless changed_dataelements.nil?
    @controller.serialize_dataelements!
    @controller.notify("dataelements/change", :endpoint => @handler_endpoint, :label => @label, :instance_name => @controller.info, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :changed => changed_dataelements, :values => dataelements, :attributes => @controller.attributes_translated, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
  end
  unless changed_endpoints.nil?
    @controller.serialize_endpoints!
    @controller.notify("endpoints/change", :endpoint => @handler_endpoint, :label => @label, :instance_name => @controller.info, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :changed => changed_endpoints, :values => endpoints, :attributes => @controller.attributes_translated, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
  end
end

#prepare(readonly, endpoints, parameters) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 51

def prepare(readonly, endpoints, parameters) #{{{
  @handler_endpoint = endpoints.is_a?(Array) ? endpoints.map{ |ep| readonly.endpoints[ep] }.compact : readonly.endpoints[endpoints]
  params = parameters.dup
  params[:arguments] = params[:arguments].dup if params[:arguments]
  params[:arguments]&.map! do |ele|
    t = ele.dup
    if t.value.is_a?(Proc)
      t.value = readonly.instance_exec &t.value
    end
    t
  end
  params
end

#simplify_result(result) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 245

def simplify_result(result)
  if result.length == 1
    if result[0].is_a? Riddl::Parameter::Simple
      result = result[0].value
    elsif result[0].is_a? Riddl::Parameter::Complex
      if result[0].mimetype == 'application/json'
        result = JSON::parse(result[0].value.read) rescue nil
      elsif result[0].mimetype == 'application/xml' || result[0].mimetype == 'text/xml'
        result = XML::Smart::string(result[0].value.read) rescue nil
      elsif result[0].mimetype == 'text/plain'
        result = result[0].value.read
        if result.start_with?("<?xml version=")
          result = XML::Smart::string(result)
        else
          result = result.to_f if result == result.to_f.to_s
          result = result.to_i if result == result.to_i.to_s
        end
      elsif result[0].mimetype == 'text/html'
        result = result[0].value.read
        result = result.to_f if result == result.to_f.to_s
        result = result.to_i if result == result.to_i.to_s
      else
        result = result[0]
      end
    end
  end
  result
end

#simulate(type, nesting, tid, parent, parameters = {}) ⇒ Object

{{{



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 327

def simulate(type,nesting,tid,parent,parameters={}) #{{{
  pp "#{type} - #{nesting} - #{tid} - #{parent} - #{parameters.inspect}"

  @controller.call_vote("simulating/step",
    :endpoint => @handler_endpoint,
    :instance => @controller.instance,
    :instance_uuid => @controller.uuid,
    :activity => tid,
    :type => type,
    :nesting => nesting,
    :parent => parent,
    :parameters => parameters
  )
end

#structurize_result(result) ⇒ Object 



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 274

def structurize_result(result)
  result.map do |r|
    if r.is_a? Riddl::Parameter::Simple
      { 'name' => r.name, 'data' => r.value }
    elsif r.is_a? Riddl::Parameter::Complex
      res = if r.mimetype == 'application/json'
        JSON::parse(r.value.read) rescue nil
      elsif r.mimetype == 'text/plain' || r.mimetype == 'text/html'
        ttt = r.value.read
        ttt = ttt.to_f if ttt == ttt.to_f.to_s
        ttt = ttt.to_i if ttt == ttt.to_i.to_s
        ttt
      else
        r.value.read
      end
      tmp = {
        'name' => r.name == '' ? 'result' : r.name,
        'mimetype' => r.mimetype,
        'data' => res
      }
      r.value.rewind
      tmp
    end
  end
end

#test_condition(mr, code) ⇒ Object 



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 321

def test_condition(mr,code)
  res = mr.instance_eval(code)
  @controller.notify("condition/eval", :instance => @controller.instance, :instance_uuid => @controller.uuid, :code => code, :condition => (res ? "true" : "false"), :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
  res
end

#vote_sync_after ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 238

def vote_sync_after # {{{
  @controller.call_vote("activity/syncing_after", :endpoint => @handler_endpoint, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
end

#vote_sync_before(parameters = nil) ⇒ Object

}}}



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# File 'lib/cpee-handlerwrapper-opcua.rb', line 241

def vote_sync_before(parameters=nil) # {{{
  @controller.call_vote("activity/syncing_before", :endpoint => @handler_endpoint, :instance => @controller.instance, :instance_uuid => @controller.uuid, :activity => @handler_position, :parameters => parameters, :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"))
end