RE: How to use MarkupBuilder

I tried some of what Martin suggested but possibly didn't get it right.  Here's a shortened copy of my service.  I call the getXML method passing my object to get the XML string that will be sent to the web service.  Then I turn right around and call the autoService method, again passing my object to actually call the web service.   The builder code is/should be exactly the same, which is why I was hoping to eliminate one copy of the that code, but maybe that's not quite possible because of what the HttpBuilder class is expecting.    The send() method is actually a two parm method which can take a Closure as the second parm which represents the xml builder.   So, ideally, I'd like the autoService call to share a builder with the getXML method (only 1 copy to maintain) and the newer version would just pass the XML as the second parm to the send method.
 
Hope this makes sense!
 
 
package com.jda.portfolio.service
import com.jda.portfolio.domain.Configuration
import com.jda.portfolio.domain.TransactionSpec
import groovyx.net.http.HTTPBuilder
import static groovyx.net.http.ContentType.XML
import static groovyx.net.http.ContentType.TEXT
import static groovyx.net.http.Method.PUT
 
class AutoTransService {
 
 boolean transactional = false
 
 def String getXML(TransactionSpec txnSpec) {
  
  def writer = new StringWriter()
  def builder = new groovy.xml.MarkupBuilder(writer)
  builder.TransactionSpec (training:txnSpec.training) {
   transClassName txnSpec.transClassName
   locationNumber txnSpec.locationNumber
   currencyCode txnSpec.currencyCode
   AssociateSpec { associateNumber txnSpec.associateSpec.associateNumber  }
   terminalName txnSpec.terminalName
   LineItemSpecs {
    for (item in txnSpec.lineItemSpecs) {
     LineItemSpec {
      sku(item.sku)
      quantity(item.quantity)
      if (item.overrideReasonCode) overrideReasonCode(item.overrideReasonCode)
      if (item.overridePrice) overridePrice(item.overridePrice)
      if (item.pricePrecision) pricePrecision(item.pricePrecision)
     }
    }
   }
  }
  writer.toString()
 }
 
  
 
 def autoService(TransactionSpec txnSpec, Configuration conf, String userid, String pswd) {
  
  def ppos = new HTTPBuilder( conf.protocol+"//"+conf.server+":"+conf.port, TEXT )
  
  try {
   ppos.request( PUT ) {
    uri.path = conf.context + conf.url
    headers = [Accept:'application/xml', 'ppos-user':userid, 'ppos-pswd':pswd]
    send( groovyx.net.http.ContentType.XML ) {
     TransactionSpec (training:txnSpec.training) {
      transClassName txnSpec.transClassName
      locationNumber txnSpec.locationNumber
      currencyCode txnSpec.currencyCode
      AssociateSpec { associateNumber txnSpec.associateSpec.associateNumber  }
      terminalName txnSpec.terminalName
      if (txnSpec.lineItemSpecs) {
       LineItemSpecs {
        LineItemSpec {
         for (item in txnSpec.lineItemSpecs) {
          sku(item.sku)
          quantity(item.quantity)
          if (item.overrideReasonCode) overrideReasonCode(item.overrideReasonCode)
          if (item.overridePrice) overridePrice(item.overridePrice)
          if (item.pricePrecision) pricePrecision(item.pricePrecision)
         }
        }
       }
      }
         // success handler
    response.success = { resp, reader ->
     //pretty print format the response
     def stringWriter = new StringWriter()
     def node = new XmlParser().parseText(reader.text);
     new  XmlNodePrinter(new PrintWriter(stringWriter)).print(node)
     return stringWriter.toString()
    }
    // failure handler
    response.failure = { resp ->
     return 'Response status='+resp.status
    }
   }
  } catch(Exception e) {
   log.error("Caught exception:", e)
   return e.toString()
  }
 }
 
}

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