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I am trying to write a code that helps me to create a XML object. For example, I will give a string to a function and it will return me a XMLObject .

XMLObject convertToXML(String s) {}

When I was searching on the net, generally I saw examples about sreating XML documents. So all the things I saw about creating an XML and write on to a file and create the file. But I have done something like that also ,

Document document = new Document();
    Element child = new Element("snmp");
    child.addContent(new Element("snmpType").setText("snmpget"));
    child.addContent(new Element("IpAdress").setText("127.0.0.1"));
    child.addContent(new Element("OID").setText("1.3.6.1.2.1.1.3.0"));
    document.setContent(child);

Do you think it is enough to create an XML object ? and also can you please help me how to get data from XML ? For example; how can I get the IpAdress from that XML ?

Thank you all a lot

*EDIT 1 : * Actually now I thought that maybe it would be much easier for me to have a file like base.xml , I will write all basic things into that for example,

  <snmp>
  <snmpType><snmpType>
  <OID></OID>
  </snmp>

and then use this file to create a XML object. What do you think about that ?

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give the fully qualified name (FQN) of XMLObject. Are you using xmlbeans? – Pangea Sep 30 '11 at 7:47
Ok, first question: What is XMLObject? Which library is that? – forty-two Sep 30 '11 at 7:49
XMLObject is just an example, I want a function that gets a string as a parameter and then it will return a XML object . I am using jdom for implementation. – Ozer Sep 30 '11 at 7:55
What do you want to do with XMLObject once you have it? If you just want a representation that you can manipulate in code and navigate through, then Document/Element are probably good enough. – Richard Sep 30 '11 at 8:14
@Richard I will create XML objects and will send them through sockets and then I will get the informations that are written in XML. Do you think Document/Element is enough ? – Ozer Sep 30 '11 at 8:26

2 Answers

up vote 8 down vote accepted

If you can create a string xml you can easily transform it to the xml document object e.g. - 

    String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><a><b></b><c></c></a>";  

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();  
    DocumentBuilder builder;  
    try  
    {  
        builder = factory.newDocumentBuilder();  
        Document document = builder.parse( new InputSource( new StringReader( xmlString ) ) );  
    } catch (Exception e) {  
        e.printStackTrace();  
    }

You can use the document object and xml parsing libraries or xpath to get back the ip address.

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up vote 1 down vote

try something like

public static Document loadXML(String xml) throws Exception
{
   DocumentBuilderFactory fctr = DocumentBuilderFactory.newInstance();
   DocumentBuilder bldr = fctr.newDocumentBuilder();
   InputSource insrc = new InputSource(new StringReader(xml));
   return bldr.parse(insrc);
}
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