// 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; }
