SPIN/DOM-XML-01004 Parsing input into DOM document.

[prasenjithaty]

Hi,

I am unable to parse the below XML. To be precise, I've implemented my own DataFormatConfigurator and set NamespaceAware to false to ignore namespaces. It works fine without <a:WorkflowTemplateId i:nil="true" />. From the debug logs, I can confirm that the DocumentBuilderFactory is using the custom configuration to ignore namespace.

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
   <s:Body>
      <JobResponse xmlns="http://schemas.example.com/digital/v5.00">
         <JobResult xmlns:a="http://schemas.datacontract.org/DataContracts.BackwardsCompatibility.v500" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
            <a:CostCode>1724</a:CostCode>
            <a:ID>8115548</a:ID>
            <a:State>Completed</a:State>
            <a:Tasks>
               <a:Task>
                  <a:ID>73235022</a:ID>
                  <a:ItemID>1281863</a:ItemID>
                  <a:TypeID>31</a:TypeID>
                  <a:WorkflowTemplateId i:nil="true" />
               </a:Task>
               <a:Task>
                  <a:ID>73235023</a:ID>
                  <a:ItemID>1281864</a:ItemID>
                  <a:TypeID>4</a:TypeID>
                  <a:WorkflowTemplateId i:nil="true" />
               </a:Task>
               <a:Task>
                  <a:ID>73235024</a:ID>
                  <a:ItemID>1281865</a:ItemID>
                  <a:TypeID>4</a:TypeID>
                  <a:WorkflowTemplateId i:nil="true" />
               </a:Task>
            </a:Tasks>
         </JobResult>
      </JobResponse>
   </s:Body>
</s:Envelope>

Attaching sample code to test:

public class SampleClass {
    private static final Logger LOGGER = LoggerFactory.getLogger(SampleClass.class);

    public static void main(String[] args) {
        String str = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                + "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
                + "   <s:Body>\n"
                + "      <JobResponse xmlns=\"http://schemas.example.com/digital/v5.00\">\n"
                + "         <JobResult xmlns:a=\"http://schemas.datacontract.org/DataContracts.BackwardsCompatibility.v500\" xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\">\n"
                + "            <a:CostCode>0000</a:CostCode>\n"
                + "            <a:ID>8115548</a:ID>\n"
                + "            <a:Notes i:nil=\"true\" />\n"
                + "            <a:State>Completed</a:State>\n"
                + "            <a:Tasks>\n"
                + "               <a:Task>\n"
                + "                  <a:ID>73235022</a:ID>\n"
                + "                  <a:ItemID>1281863</a:ItemID>\n"
                + "                  <a:TypeID>31</a:TypeID>\n"
                + "               <a:WorkflowTemplateId i:nil=\"true\" />\n"
                + "               </a:Task>\n"
                + "               <a:Task>\n"
                + "                  <a:ID>73235023</a:ID>\n"
                + "                  <a:ItemID>1281864</a:ItemID>\n"
                + "                  <a:TypeID>4</a:TypeID>\n"
                + "                  <a:WorkflowTemplateId i:nil=\"true\" />\n"
                + "               </a:Task>\n"
                + "               <a:Task>\n"
                + "                  <a:ID>73235024</a:ID>\n"
                + "                  <a:ItemID>1281865</a:ItemID>\n"
                + "                  <a:TypeID>4</a:TypeID>\n"
                + "                  <a:WorkflowTemplateId i:nil=\"true\" />\n"
                + "               </a:Task>\n"
                + "            </a:Tasks>\n"
                + "         </JobResult>\n"
                + "      </JobResponse>\n"
                + "   </s:Body>\n"
                + "</s:Envelope>";

        SpinXmlElement spinXmlElement = Spin.XML(str).xPath("//JobResponse/JobResult/ID").element();
        LOGGER.info("ID = {}", spinXmlElement.textContent()); // works as expected

        SpinList<SpinXmlElement> spinXmlElementSpinList = Spin.XML(str).xPath("//JobResponse/JobResult/Tasks/Task[TypeID=4]").elementList(); // throws exception. pasting logs below
        LOGGER.info("spinXmlElementSpinList = {}", spinXmlElementSpinList);
    }
}

Logs:

16:27:45.661 [main] INFO org.camunda.spin - SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormatProvider[name = application/json]
16:27:46.053 [main] INFO org.camunda.spin - SPIN-01010 Discovered Spin data format provider: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatProvider[name = application/xml]
16:27:46.060 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01003 DocumentBuilderFactory configuration 'namespaceAware' 'true'
16:27:46.060 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01003 DocumentBuilderFactory configuration 'validating' 'false'
16:27:46.060 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01003 DocumentBuilderFactory configuration 'ignoringComments' 'true'
16:27:46.060 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01003 DocumentBuilderFactory configuration 'ignoringElementContentWhitespace' 'false'
16:27:46.066 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01001 Using document builder factory 'com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl'
16:27:46.072 [main] INFO org.camunda.spin - SPIN-01011 Discovered Spin data format configurator: class com.sample.myworkflow.config.CustomXmlDataFormatter[dataformat = org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat]
16:27:46.073 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01003 DocumentBuilderFactory configuration 'namespaceAware' 'false'
16:27:46.074 [main] INFO org.camunda.spin - SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.xml.dom.format.DomXmlDataFormat[name = application/xml]
16:27:46.074 [main] INFO org.camunda.spin - SPIN-01009 Discovered Spin data format: org.camunda.spin.impl.json.jackson.format.JacksonJsonDataFormat[name = application/json]
16:27:46.117 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01002 Successfully created new document builder
16:27:46.117 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01004 Parsing input into DOM document.
16:27:46.165 [main] INFO com.sample.myworkflow.utils.SampleClass - ID = 8115548
16:27:46.166 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01002 Successfully created new document builder
16:27:46.166 [main] DEBUG org.camunda.spin.xml - SPIN/DOM-XML-01004 Parsing input into DOM document.
ERROR:  'Namespace for prefix 'i' has not been declared.'
SLF4J: Failed toString() invocation on an object of type [org.camunda.spin.impl.SpinListImpl]
Reported exception:
org.camunda.spin.xml.SpinXmlElementException: SPIN/DOM-XML-01022 Unable to transform element 'null:a:Task'
	at org.camunda.spin.impl.xml.dom.DomXmlLogger.unableToTransformElement(DomXmlLogger.java:127)
	at org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatWriter.writeResult(DomXmlDataFormatWriter.java:56)
	at org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatWriter.writeToWriter(DomXmlDataFormatWriter.java:47)
	at org.camunda.spin.impl.xml.dom.DomXmlElement.writeToWriter(DomXmlElement.java:373)
	at org.camunda.spin.impl.xml.dom.DomXmlElement.toString(DomXmlElement.java:368)
	at java.lang.String.valueOf(String.java:2994)
	at java.lang.StringBuilder.append(StringBuilder.java:131)
	at java.util.AbstractCollection.toString(AbstractCollection.java:462)
	at org.slf4j.helpers.MessageFormatter.safeObjectAppend(MessageFormatter.java:299)
	at org.slf4j.helpers.MessageFormatter.deeplyAppendParameter(MessageFormatter.java:271)
	at org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:233)
	at org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:173)
	at ch.qos.logback.classic.spi.LoggingEvent.getFormattedMessage(LoggingEvent.java:293)
	at ch.qos.logback.classic.spi.LoggingEvent.prepareForDeferredProcessing(LoggingEvent.java:206)
	at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:205)
	at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:100)
	at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84)
	at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
	at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
	at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
	at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
	at ch.qos.logback.classic.Logger.filterAndLog_1(Logger.java:398)
	at ch.qos.logback.classic.Logger.info(Logger.java:583)
	at com.sample.myworkflow.utils.SampleClass.main(SampleClass.java:54)
Caused by: javax.xml.transform.TransformerException: java.lang.RuntimeException: Namespace for prefix 'i' has not been declared.
	at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:746)
	at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:351)
	at org.camunda.spin.impl.xml.dom.format.DomXmlDataFormatWriter.writeResult(DomXmlDataFormatWriter.java:54)
	... 22 more
Caused by: java.lang.RuntimeException: Namespace for prefix 'i' has not been declared.
	at com.sun.org.apache.xml.internal.serializer.SerializerBase.getNamespaceURI(SerializerBase.java:915)
	at com.sun.org.apache.xml.internal.serializer.SerializerBase.addAttribute(SerializerBase.java:431)
	at com.sun.org.apache.xml.internal.serializer.ToUnknownStream.addAttribute(ToUnknownStream.java:316)
	at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:201)
	at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:230)
	at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:94)
	at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:693)
	at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:737)
	... 24 more
16:27:46.178 [main] INFO com.sample.myworkflow.utils.SampleClass - spinXmlElementSpinList = [FAILED toString()]