Good days, I have to try a xml file that potentially can be very big, for
that, i decided to do a parser sax. The idea is to have a principal parser
in whose(which) method startElement i`ll detect the entity and delegate the
processing to a specializing parser, like this:
Principal Parser
public class ParserPrincipalHandler extends DefaultHandler{
private ViewBean viewBean;
//contains xml
private String contenido;
//subparser
private ParserViewHandler parserViewHandler;
public void endElement (String namespaceURI, String localName, String
rawName)
throws
SAXException
{
//cuando hemos acabado de procesar todas las entidades, las añado a
una coleccion
if (localName.equalsIgnoreCase("result")){
this.getColeccionEntidades().removeAll(this.getColeccionEntidades());
this.getColeccionEntidades().add(viewBean);
}
}
public void startElement(String nsURI, String strippedName,
String tagName, Attributes attributes)
throws SAXException {
if (tagName.equalsIgnoreCase("view")){
procesarEntidadView(attributes);
}
}
private void procesarEntidadView(Attributes attributes) throws
SAXException{
if (this.viewBean == null){
this.viewBean = new ViewBean();
}
XMLReader parser = XMLReaderFactory.createXMLReader();
parserViewHandler= new ParserViewHandler(parser,this,this.viewBean);
parserViewHandler.setContenido(getContenido());
synchronized(parserViewHandler){
try {
parserViewHandler.list();
} catch (Exception e){
throw new SAXException(e.getMessage());
}finally {
if (isMostrarLog()){
System.out.println("finally viewBean.getErrcode..." +
viewBean.getErrcode());
System.out.println("finally
viewBean.getErrapplication..." + viewBean.getErrapplication());
System.out.println("finally viewBean.getErrmessage..." +
viewBean.getErrmessage());
for(Iterator it=
this.viewBean.getContainerBean().getWidgetList().iterator();it.hasNext();){
WidgetBean nodo = (WidgetBean) it.next();
System.out.println("nodo.getDynamic(): " +
nodo.getDynamic());
System.out.println("nodo.getId(): " + nodo.getId());
System.out.println("nodo.getName(): " +
nodo.getName());
System.out.println("nodo.getPreload(): " +
nodo.getPreload());
System.out.println("nodo.getResource(): " +
nodo.getResource());
}
}
}
}
}
Since they can see, I have to spend(pass) the content of the whole xml to
the subparser and what I want to know is to be able to pass the chunk of the
xml to the subparser. Is it possible?
Thank you for reading hitherto.
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