Re: NullPointerException when reading the leaves of the XML data

Peter-Paul Rang Mon, 27 Jun 2005 02:28:46 -0700

The "id" element is there : <id root="1.1.83" extension="PRPA_HN000203.22"/>

See xml file below:

<?xml version="1.0" encoding="utf-8"?>
<MCCI_MT000100HT02.Message xmlns="urn:hl7-org:v3" type="Message" xmlns:xsip="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<id root="1.1.83" extension="PRPA_HN000203.22"/>
<creationTime value="20030130140405.1440-0800"/>
<versionCode code="V3PR1"/>
<interactionId extension="PRPA_HN000203"/>
<processingCode code="P"/>
<processingModeCode code="T"/>
<acceptAckCode code="AL"/>
<communicationFunctionRCV type="CommunicationFunction">
    <typeCode code="RCV"/>
    <deviceRCV type="Device" classCode="DEV" determinerCode="INSTANCE">
      <id root="1.1.88" extension="88"/>
      <playedAgentRCV type="Role" classCode="AGNT">
        <representedOrganizationRCV type="Organization" classCode="ORG" determinerCode="INSTANCE">
          <id root="1.1.88.88"/>
        </representedOrganizationRCV>
      </playedAgentRCV>
    </deviceRCV>
</communicationFunctionRCV>
<communicationFunctionRSP type="CommunicationFunction">
    <typeCode code="RSP"/>
    <deviceRSP type="Device" classCode="DEV" determinerCode="INSTANCE">
      <id root="1.1.83" extension="83"/>
      <playedAgentRSP type="Role" classCode="AGNT">
        <representedOrganizationRSP type="Organization" classCode="ORG" determinerCode="INSTANCE">
          <id root="1.1.83.83"/>
        </representedOrganizationRSP>
      </playedAgentRSP>
    </deviceRSP>
</communicationFunctionRSP>
<communicationFunctionSND type="CommunicationFunction">
    <typeCode code="SND"/>
    <deviceSND type="Device" classCode="DEV" determinerCode="INSTANCE">
      <id root="1.1.83" extension="83"/>
      <playedAgentSND type="Role" classCode="AGNT">
        <representedOrganizationSND type="Organization" classCode="ORG" determinerCode="INSTANCE">
          <id root="1.1.83.83"/>
        </representedOrganizationSND>
      </playedAgentSND>
    </deviceSND>
</communicationFunctionSND>
<MCAI_MT000001HT02.ControlActEvent type="ControlAct" classCode="CACT" moodCode="EVN">
    <code code="PRPA_TE000203" codeSystemName="HTB Supplemental"/>
    <subject type="ActRelationship" typeCode="SUBJ">
      <PRPA_MT400001HT02.EncounterEvent type="PatientEncounter" classCode="ENC" moodCode="EVN">
        <id root="1.1.83.400" extension="8"/>
        <code code="16239" codeSystemName="HL7"/>
        <statusCode code="completed"/>
        <effectiveTime>
          <low value="20050101164530.1250-0800"/>
          <high value="20050130140405.1440-0800"/>
        </effectiveTime>
        <dischargeDispositionCode code="FL22.01" codeSystemName="NUBC-UB92"/>
        <preAdmitTestInd value="true"/>
        <subject type="Participation" typeCode="SBJ">
          <Patient type="Patient" classCode="PAT">
            <id root="1.1.83.300" extension="307"/>
            <effectiveTime>
              <low value="20050101"/>
            </effectiveTime>
            <Person type="Person" classCode="PSN" determinerCode="INSTANCE">
              <id root="1.1.83.100" extension="307" />
              <name use="">
                <family partType="FAM">Cornelissen</family>
                <given partType="GIV">Jan</given>
                <given partType="GIV">L</given>
              </name>
              <administrativeGenderCode code="10174" codeSystemName="HL7"/>
              <birthTime value="191905031304-0800"/>
              <addr use="H">
                <country partType="CNT">CA</country>
                <state partType="STA">B.C.</state>
                <county partType="CPA">CPA</county>
                <city partType="CTY">Missisauga</city>
                <postalCode partType="ZIP">8M3C5V</postalCode>
                <streetAddressLine partType="SAL">23592 Anywhere Street</streetAddressLine>
                <streetName partType="STR">Anywhere Street</streetName>
                <houseNumber partType="HNR">23592</houseNumber>
                <additionalLocator partType="ADL">Suite 103</additionalLocator>
              </addr>
            </Person>
            <Organization type="Organization" classCode="ORG" determinerCode="INSTANCE">
              <id root="1.1.83.83"/>
            </Organization>
          </Patient>
        </subject>
        <admitter type="Participation" typeCode="ADM">
          <time>
            <low value="20050130140405.1440-0800"/>
          </time>
          <EmploymentStaff type="Employee" classCode="EMP">
            <id root="1.1.83.200" extension="52"/>
          </EmploymentStaff>
        </admitter>
        <pertinentInformation4 type="ActRelationship" typeCode="PERT">
          <ObservationEventDx type="Observation" classCode="OBS" moodCode="EVN">
            <code code="16840" codeSystemName="HL7"/>
            <statusCode code="active"/>
            <effectiveTime>
              <low value="20050130140405.1440-0800"/>
              <high value="20050130140405.1440-0800"/>
            </effectiveTime>
            <confidentialityCode code="PSY" codeSystemName="Confidentiality"/>
            <independentInd value="false"/>
            <value code="233604007" codeSystemName="SNOMED-CT" xsi:type="CE"/>
          </ObservationEventDx>
        </pertinentInformation4>
      </PRPA_MT400001HT02.EncounterEvent>
    </subject>
</MCAI_MT000001HT02.ControlActEvent>
</MCCI_MT000100HT02.Message>

Adrian Shum wrote:

it looks to me that, in the raw xml, you didn't have the "id" element
in "message"



-----Original Message-----
From: Peter-Paul Rang [mailto:[EMAIL PROTECTED]]
Sent: Monday, June 27, 2005 4:39 PM
To: [email protected]
Cc: rang >> Peter-Paul Rang
Subject: NullPointerException when reading the leaves of the XML data


I'm getting a NullPointerException when reading the leaves of the XML data

I can read the XML File correctly, I can walk through the XML structure 
correctly, I can print it correctly.

    String file = "D:/Htb/Dev/message/EE07_xmlbean.xml";
    File inputFile = new File(file);
    try
    {
      MCCIMT000100HT02Message message = 
MCCIMT000100HT02Message.Factory.parse(inputFile);
      System.out.println(message.xmlText());

However, when I want to retrieve specific values from the xml file, I 
get a NullPointerException.

          String extension = (String)message.getId().getExtension();

-->
java.lang.NullPointerException
    at parser.TestMyXMLBean.doAll(TestMyXMLBean.java:42)
    at parser.TestMyXMLBean.main(TestMyXMLBean.java:82)
Process exited with exit code 0.

Any hints and tips are very much appreciated.

Thanks,

Peter-Paul


	Peter-Paul Rang Development Specialist Business Technology Solutions
Oracle Nederland BV Consulting	Rijnzathe 6 P.O. Box 147	phone fax	+31 30 669 8248 +31 30 669 9966
	3454 ZJ De Meern	[EMAIL PROTECTED]
	The Netherlands

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Re: NullPointerException when reading the leaves of the XML data

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