ruby semantic handle example

gistfile1.txt

#from diggit-hydra
#use gem "savon"

handles_enabled: true
handle_wsdl: http://link.odai.yale.edu/ypls-ws/PersistentLinking?wsdl
handle_prefix: 10079/digcoll
handle_group: 10079/DIGCOLL
handle_user: 10079/DIGCOLL
handle_credential: ****
handle_base: http://findit.library.yale.edu/catalog/
...
    @handles_enabled = config.fetch("handles_enabled")
    @handle_wsdl = config.fetch("handle_wsdl")
    @handle_prefix = config.fetch("handle_prefix")
    @handle_group = config.fetch("handle_group")
    @handle_user = config.fetch("handle_user")
    @handle_credential = config.fetch("handle_credential")
    @handle_base = config.fetch("handle_base")
...
  
  
  def create_handle(pid)
    if @handles_enabled == true
      logger.info("Creating handle for pid: " + pid)
	  semantic_handle = pid_to_semantic_handle(pid)
	  client = Savon.client(wsdl: @handle_wsdl)
      envelope = handle_soap_envelope(pid,semantic_handle)
	  response = client.call(:create_batch_semantic, xml: envelope)
      if response.success? == true
        logger.info("Created handle: http://hdl.handle.net/"+semantic_handle)
		logger.info("envelope: " + envelope)
		logger.info("response: " + response.to_xml.to_s)
      else
        logger.error("Error creating handle for pid: "+pid)
		logger.error("envelope: " + envelope)
		logger.error("response: " + response.to_xml.to_s)
      end
    else
	  logger.info("Handles disabled, skipping call to handle service")
    end
  end

  def pid_to_semantic_handle(pid)
    ns = @handle_prefix[@handle_prefix.index("/")+1,@handle_prefix.size]+":"
    if pid.include?(ns)
      return @handle_prefix + "/" + pid.gsub(ns,"")
    else
      logger.error("Handle prefix namespace "+ns+" doesn't match pid namespace of pid "+pid)
      raise "Handle prefix namespace "+ns+" doesn't match pid namespace of pid "+pid
    end  
  end
  
  def handle_soap_envelope(pid,semantic_handle)
    envelope = 
      "<env:Envelope xmlns:env=\"http://schemas.xmlsoap.org/soap/envelope/\">"+
      "<env:Body>"+
      "<tns:createBatchSemantic xmlns:tns=\"http://ws.ypls.odai.yale.edu/\">"+
      "<handlesToValues><map><entry>"+
      "<key>"+semantic_handle+"</key>"+
      "<value>"+@handle_base+pid+"</value>"+
      "</entry></map></handlesToValues>"+
      "<group>"+@handle_group+"</group>"+
      "<user>"+@handle_user+"</user>"+
      "<credential>"+@handle_credential+"</credential>"+
      "</tns:createBatchSemantic></env:Body></env:Envelope>"
	  envelope
  end