/*
- * Copyright 2005 the original author or authors.
+ * Copyright 2005-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
package org.wamblee.xml;
import java.io.ByteArrayInputStream;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
+import javax.xml.validation.Validator;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.xml.serialize.OutputFormat;
-import org.apache.xml.serialize.XMLSerializer;
-import org.dom4j.DocumentException;
-import org.dom4j.io.DOMReader;
-import org.dom4j.io.DOMWriter;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
+import org.w3c.dom.bootstrap.DOMImplementationRegistry;
+import org.w3c.dom.ls.DOMImplementationLS;
+import org.w3c.dom.ls.LSException;
+import org.w3c.dom.ls.LSInput;
+import org.w3c.dom.ls.LSParser;
import org.xml.sax.SAXException;
/**
* Some basic XML utilities for common reoccuring tasks for DOM documents.
- *
+ *
* @author Erik Brakkee
*/
public final class DomUtils {
-
- private static final Log LOG = LogFactory.getLog(DomUtils.class);
+ private static final Logger LOG = Logger
+ .getLogger(DomUtils.class.getName());
/**
* Disabled default constructor.
}
/**
- * Parses an XML document from a string.
- *
- * @param aDocument
- * document.
- * @return
- */
- public static Document read(String aDocument) throws XMLException {
- ByteArrayInputStream is = new ByteArrayInputStream(aDocument.getBytes());
- return read(is);
- }
-
- /**
- * Parses an XML document from a stream.
- *
- * @param aIs
- * Input stream.
- * @return
- */
- public static Document read(InputStream aIs) throws XMLException {
- try {
- DocumentBuilder builder = DocumentBuilderFactory.newInstance()
- .newDocumentBuilder();
- return builder.parse(aIs);
- } catch (SAXException e) {
- throw new XMLException(e.getMessage(), e);
- } catch (IOException e) {
- throw new XMLException(e.getMessage(), e);
- } catch (ParserConfigurationException e) {
- throw new XMLException(e.getMessage(), e);
- } finally {
- try {
- aIs.close();
- } catch (Exception e) {
- LOG.warn("Error closing XML file", e);
- }
- }
- }
-
- /**
- * Reads and validates a document against a schema.
- *
- * @param aIs
- * Input stream.
- * @param aSchema
- * Schema.
- * @return Parsed and validated document.
+ * Gets a dom level 3 implementation.
+ * @return Dom implementation.
+ * @throws ClassNotFoundException
+ * @throws InstantiationException
+ * @throws IllegalAccessException
*/
- public static Document readAndValidate(InputStream aIs, InputStream aSchema)
- throws XMLException {
-
+ public static DOMImplementationLS getDomImplementationLS() {
+ final String message = "Could not get Dom level 3 implementation";
try {
- final Schema schema = SchemaFactory.newInstance(
- XMLConstants.W3C_XML_SCHEMA_NS_URI).newSchema(
- new StreamSource(aSchema));
-
- final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
- factory.setValidating(true);
- factory.setNamespaceAware(true);
- factory.setSchema(schema);
-
- return factory.newDocumentBuilder().parse(aIs);
- } catch (SAXException e) {
- throw new XMLException(e.getMessage(), e);
- } catch (IOException e) {
- throw new XMLException(e.getMessage(), e);
- } catch (ParserConfigurationException e) {
- throw new XMLException(e.getMessage(), e);
- } finally {
- try {
- aSchema.close();
- } catch (Exception e) {
- LOG.warn("Error closing schema", e);
- }
- try {
- aIs.close();
- } catch (Exception e) {
- LOG.warn("Error closing XML file", e);
- }
+ DOMImplementationRegistry registry = DOMImplementationRegistry
+ .newInstance();
+
+ DOMImplementationLS impl = (DOMImplementationLS) registry
+ .getDOMImplementation("LS");
+ return impl;
+ } catch (ClassCastException e) {
+ throw new RuntimeException(message, e);
+ } catch (ClassNotFoundException e) {
+ throw new RuntimeException(message, e);
+ } catch (InstantiationException e) {
+ throw new RuntimeException(message, e);
+ } catch (IllegalAccessException e) {
+ throw new RuntimeException(message, e);
}
-
- }
-
- /**
- * Serializes an XML document to a stream.
- *
- * @param aDocument
- * Document to serialize.
- * @param aOs
- * Output stream.
- */
- public static void serialize(Document aDocument, OutputStream aOs)
- throws IOException {
- XMLSerializer serializer = new XMLSerializer(aOs, new OutputFormat());
- serializer.serialize(aDocument);
- }
-
- /**
- * Serializes an XML document.
- *
- * @param aDocument
- * Document to serialize.
- * @return Serialized document.
- */
- public static String serialize(Document aDocument) throws IOException {
- ByteArrayOutputStream os = new ByteArrayOutputStream();
- serialize(aDocument, os);
- return os.toString();
- }
-
- /**
- * Converts a dom4j document into a w3c DOM document.
- *
- * @param aDocument
- * Document to convert.
- * @return W3C DOM document.
- */
- public static Document convert(org.dom4j.Document aDocument)
- throws DocumentException {
- return new DOMWriter().write(aDocument);
- }
-
- /**
- * Converts a W3C DOM document into a dom4j document.
- *
- * @param aDocument
- * Document to convert.
- * @return Dom4j document.
- */
- public static org.dom4j.Document convert(Document aDocument) {
- return new DOMReader().read(aDocument);
}
/**
*/
public static void removeDuplicateAttributes(Node aNode) {
NodeList list = aNode.getChildNodes();
+
for (int i = 0; i < list.getLength(); i++) {
Node node = list.item(i);
+
if (node instanceof Element) {
removeDuplicateAttributes((Element) node);
removeDuplicateAttributes(node);
NamedNodeMap attributes = aElement.getAttributes();
Map<String, Attr> uniqueAttributes = new TreeMap<String, Attr>();
List<Attr> attlist = new ArrayList<Attr>();
+
for (int i = 0; i < attributes.getLength(); i++) {
Attr attribute = (Attr) attributes.item(i);
+
if (uniqueAttributes.containsKey(attribute.getNodeName())) {
- LOG.info("Detected duplicate attribute (will be removed)'"
- + attribute.getNodeName() + "'");
+ LOG.info("Detected duplicate attribute (will be removed)'" +
+ attribute.getNodeName() + "'");
}
+
uniqueAttributes.put(attribute.getNodeName(), attribute);
attlist.add(attribute);
}
+
// Remove all attributes from the element.
for (Attr att : attlist) {
aElement.removeAttributeNode(att);
}
+
// Add the unique attributes back to the element.
for (Attr att : uniqueAttributes.values()) {
aElement.setAttributeNode(att);