// Parse the input to produce a parse tree with its root
// in the form of a Document object
Document doc = null; try {
DocumentBuilder builder = dbf.newDocumentBuilder();
builder.setErrorHandler(new MyErrorHandler());
InputSource is = new InputSource(filename);
doc = builder.parse(is);
} catch (SAXException e) {
System.exit(1);
} catch (ParserConfigurationException e) {
System.err.println(e);
System.exit(1);
} catch (IOException e) {
System.err.println(e);
System.exit(1);
}
// Use a TreeDumper to list the tree
TreeDumper td = new TreeDumper();
td.dump(doc);
}
private static void usage() {
System.err.println("Usage: DOMCheck [-v] <filename>");
System.exit(1);
}
} class TreeDumper { public void dump(Document doc) {
dumpLoop((Node)doc,"");
} private void dumpLoop(Node node,String indent) { switch(node.getNodeType()) { case Node.CDATA_SECTION_NODE:
System.out.println(indent + "CDATA_SECTION_NODE"); break; case Node.COMMENT_NODE:
System.out.println(indent + "COMMENT_NODE"); break; case Node.DOCUMENT_FRAGMENT_NODE:
System.out.println(indent + "DOCUMENT_FRAGMENT_NODE"); break; case Node.DOCUMENT_NODE:
System.out.println(indent + "DOCUMENT_NODE"); break; case Node.DOCUMENT_TYPE_NODE:
System.out.println(indent + "DOCUMENT_TYPE_NODE"); break; case Node.ELEMENT_NODE:
System.out.println(indent + "ELEMENT_NODE"); break; case Node.ENTITY_NODE:
System.out.println(indent + "ENTITY_NODE"); break; case Node.ENTITY_REFERENCE_NODE:
System.out.println(indent + "ENTITY_REFERENCE_NODE"); break; case Node.NOTATION_NODE:
System.out.println(indent + "NOTATION_NODE"); break; case Node.PROCESSING_INSTRUCTION_NODE:
System.out.println(indent + "PROCESSING_INSTRUCTION_NODE"); break; case Node.TEXT_NODE:
System.out.println(indent + "TEXT_NODE"); break; default:
System.out.println(indent + "Unknown node"); break;
}
