Update XML using DOM or RandomAccessFile

Morning,
One of my server apps stores client resource data in an XML file. Quite often, a process will want to update, add, or remove nodes based upon requirement. Is it less efficient to load the entire XML document into the DOM and modify it or just use RandomAccessFile to search for specific byte patterns and perform my modifications?
Or, does it really matter? Using the DOM would be more in keeping with its intended purpose vs the more direct byte by byte approach.
Thank you,
Stig.

Well, if all of your modifications are guaranteed to preserve the length of every node in the document, then I suppose you could use a RandomAccessFile. But if somebody someday is going to ask for a text node to be changed from "Mary" to "Maria" then a RandomAccessFile would be just a huge pain. You would have to move everything after that node one char to the right.
I'm betting your requirements fail that length-preservation test. Especially since you mentioned adding and removing nodes. Just use the DOM already.

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Update XML using DOM parser

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But i want to keep all the values as attributes only.
the XML file is as shown below:
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if (attrs != null) {
int iLength = attrs.getLength();
for (int i = 0; i < iLength; i++) {
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<?xml version="1.0" encoding="UTF-8"?>
<Main>
<AAAAA>
<ES>ESValue</ES>
<EI>EIValue</EI>
</AAAAA>
<BBBBB>
<SIP>
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<TB>TBValue</TB>
<PM>PMValue</PM>
<VIP>
<CARP>
<AN1>AN1Value</AN1>
<BN>BNValue</BN>
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<DARP>
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EIValue
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TBValue
PMValue
AN1Value
BNValue
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pls check the above xml file in proper redable order...I need to parse using DOM and fetch node values that are present...
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<Main>
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import org.w3c.dom.*;
import org.apache.xerces.parsers.DOMParser;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.File;
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import org.w3c.dom.Element;
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Hi,
I am able to compile and I cross checked if the Document is created by parsing through the nodes.
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Smitha

Comparing two XML using DOM

Hi All,
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<?xml version="1.0"?>
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< test name="java1">
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NodeList bList1 = doc.getElementsByTagName("compare");
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                      NamedNodeMap attributes = (NamedNodeMap)nNode.getAttributes();
                                      for (int g = 0; g < attributes.getLength(); g++) {
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                                       if (nNode.getNodeType() == Node.ELEMENT_NODE) {
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2nd xml
<?xml version="1.0"?>
<compare value="xml1"/>
< test name="java">
      <compare value="xml">
          <node>012</node>
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< test name="java1">
      <compare value="xml2">
          <node>015</node>
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      <compare value="xml3">
          <node>016</node>
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NodeList bList1 = doc.getElementsByTagName("compare");
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                                      for (int g = 0; g < attributes.getLength(); g++) {
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m1.put (attribute.getName(),attribute.getValue());
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Map m2= new HashMap();
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m2.put ("node");
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                    Set<Map.Entry<String, String>> s2 = m2.entrySet();
                        results =
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                        if (!s2.contains(entry)) results.add(entry);
                    for (Map.Entry<String, String> entry : s2) {
                        if (!s1.contains(entry)) results.add(entry);
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I need to get the attribute value of <compare> and body value for
<node> tag and need to compare the values in both XML.

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Hi,
Is there a way to create a corrosponding DTD of a xml-file using DOM. I have a XML-file that's pretty huge I want to create a DTD for that XML-file using DOM. Can anyone plz. lead me how to do this. I tried to use XMLSpy to convert the XML into DTD but the resulting DTD is not correct. Is there a way to create the DTD using DOM.
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When you say you are trying to convert XML to DTD, do you mean you are trying to convert a XSD (schema) to a DTD, or that you are trying to create a schema that corresponds to a given XML document.
Realize that DTDs are not very powerful. XSD documents allow for much more detail. I don't have a proof, but I'm absolutely confident that any DTD can be expressed as a schema but not all schemas can be represented as a DTD. In other words, DTDs are not worth the trouble, in my opinion.

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I am getting one XML file as string like <?xml version="1.0" encoding="ISO-8859-1" ?> <DMSI-ACTIVITY-COMMENTS> </DMSI-ACTIVITY-COMMENTS>
Every time I want to add new node <ACTIVITY>
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          <ID></ID>
          <COMMENT></COMMENT>
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I wrote code....
InputStream inputStream = new ByteArrayInputStream(file.getBytes());
Document doc = docBuilder.parse(inputStream);
Element activityNode = doc.createElement("ACTIVITY");
Element nameNode = doc.createElement("NAME");
activityNode.appendChild(nameNode);
Text nametextNode = doc.createTextNode(name);
nameNode.appendChild(nametextNode);
Element root = doc.getDocumentElement();
root.appendChild(activityNode);
String resultUDA = doc.toString();
Problem: Here I am getting value of resultUDA is [#document: null]. I need updated XML as String....
any one can give me suggestion or any other option to solve this issue...
thanks in advance...

I got it ....pls check on it
http://www.theserverside.com/discussions/thread.tss?thread_id=26060

To update XML using shell script

Hello,
I have an xml file like below: I want to add an entry in the xml using shell script. Can someone help me here please.
<cluster
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    http-port="7003"
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node-restart="RUN"
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<cluster
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sed -i '/node-list="node.net"/a\\tnode-restart="RUN"' xmlfile

Update XML using DOM or RandomAccessFile

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