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How do I merge two different XML document using JDOM

Posted on 2007-11-15
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Last Modified: 2013-11-18
Hi,

I have two XML document as listed below:

1)  (xmlDocA)

<GLogXMLElement>
<Location>
     <TransactionCode>NP</TransactionCode>
      <LocationGid>
         <Gid>
            <Xid>Rockville</Xid>
         </Gid>
      </LocationGid>
      <Address>
         <AddressLines>
            <SequenceNumber>2442</SequenceNumber>
            <AddressLine>1221 E Otem Circle</AddressLine>
         </AddressLines>
         <City>Miami</City>
         <ProvidenceCode>FL</ProvidenceCode>
         <PostalCode>91991</PostalCode>
      </Address>
</Location>
</GLogXMLElement>

2)     (xmlDocB)

        <Transmission>
      <TransmissionHeader>
              <UserName />
              <Password />
        </TransmissionHeader>
      <TransmissionBody>
      <!----- here goes GLogXMLElement XML element ---->
      </TransmissionBody>
   </Transmission>

I want to merge document 1) in to document 2) under <TransmissionBody> element.

Is it possible?

When I try to do that I get org.jdom.IllegalAddException: The Content already has an existing parent

SAXBuilder saxBuilder = new SAXBuilder();
        java.io.File xmlFile = new File("xmlDocA");
        org.jdom.Document xmlDocumentA = saxBuilder.build(xmlFile);
 
        xmlFile = new File("xmlDocB");
        org.jdom.Document xmlDocumentB = saxBuilder.build(xmlFile);
 
        Element rootA = xmlDocumentA.getRootElement();
        List childrenDocA = rootA.getChildren();
        
        Element rootB = xmlDocumentB.getRootElement();
        Element childDocB = rootB.getChild("TransmissionBody");
       
        childDocB.addContent(childrenDocA);                             ----------------- Exception at this line
 
        XMLOutputter xmlOutPutter = new XMLOutputter(Format.getPrettyFormat());
        xmlOutPutter.output(xmlDocumentB, System.out);

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Question by:MehtaJasmin
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3 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 20292013
Try iterating the List and add the content yourself - ONLY after calling clone() on each Element
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LVL 92

Accepted Solution

by:
objects earned 125 total points
ID: 20293056
>         List childrenDocA = rootA.getChildren();

change that to:

        List childrenDocA = xmlDocumentA.cloneContent();
0
 

Author Comment

by:MehtaJasmin
ID: 20323230
The alternate solution is:

replace

childDocB.addContent(childrenDocA);                            

to

childDocB.addContent(rootA.detach());                            
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