Lazy schema loading using Xerces API

Validating.java

	private static void validate(String xml) {
		String validationFeature = "http://xml.org/sax/features/validation";
		String schemaFeature = "http://apache.org/xml/features/validation/schema";
		try {
			XML11Configuration config = new XML11Configuration();
			config.setEntityResolver(new MyEntityManager());
			XMLReader r = new SAXParser(config);
			r.setFeature(validationFeature, true);
			r.setFeature(schemaFeature, true);
			r.parse(new InputSource(new StringReader(xml)));
		} catch (SAXException e) {
			System.out.println(e.toString());
		} catch (IOException e) {
			System.out.println(e.toString());
		}
	}

	private static class MyEntityManager extends XMLEntityManager {

		@Override
		public XMLInputSource resolveEntity(
				XMLResourceIdentifier resourceIdentifier) throws IOException,
				XNIException {
			XMLInputSource result = super.resolveEntity(resourceIdentifier);
			if (result.getPublicId() == null && result.getSystemId() == null
					&& result.getCharacterStream() == null
					&& result.getByteStream() == null) {
				
				System.out.println("Can't resolve namespace: "
						+ resourceIdentifier.getNamespace());
			}
			return result;
		}

	}