/*
- * 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 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;
/**
* 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.
*
* @param aDocument
* document.
+ *
* @return
+ *
*/
public static Document read(String aDocument) throws XMLException {
ByteArrayInputStream is = new ByteArrayInputStream(aDocument.getBytes());
+
return read(is);
}
*
* @param aIs
* Input stream.
+ *
* @return
+ *
*/
public static Document read(InputStream aIs) throws XMLException {
try {
DocumentBuilder builder = DocumentBuilderFactory.newInstance()
- .newDocumentBuilder();
+ .newDocumentBuilder();
+
return builder.parse(aIs);
- } catch (SAXException e) {
+ } catch (SAXException e) {
throw new XMLException(e.getMessage(), e);
} catch (IOException e) {
throw new XMLException(e.getMessage(), e);
try {
aIs.close();
} catch (Exception e) {
- LOG.warn("Error closing XML file", e);
+ LOG.log(Level.WARNING, "Error closing XML file", e);
}
}
}
* Input stream.
* @param aSchema
* Schema.
+ *
* @return Parsed and validated document.
+ *
*/
public static Document readAndValidate(InputStream aIs, InputStream aSchema)
- throws XMLException {
-
+ throws XMLException {
try {
final Schema schema = SchemaFactory.newInstance(
- XMLConstants.W3C_XML_SCHEMA_NS_URI).newSchema(
- new StreamSource(aSchema));
+ XMLConstants.W3C_XML_SCHEMA_NS_URI).newSchema(
+ new StreamSource(aSchema));
- final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+ final DocumentBuilderFactory factory = DocumentBuilderFactory
+ .newInstance();
factory.setValidating(true);
factory.setNamespaceAware(true);
factory.setSchema(schema);
try {
aSchema.close();
} catch (Exception e) {
- LOG.warn("Error closing schema", e);
+ LOG.log(Level.WARNING, "Error closing schema", e);
}
+
try {
aIs.close();
} catch (Exception e) {
- LOG.warn("Error closing XML file", e);
+ LOG.log(Level.WARNING, "Error closing XML file", e);
}
}
-
}
/**
* 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);
+ throws IOException {
+ try {
+ TransformerFactory factory = TransformerFactory.newInstance();
+ Transformer identityTransform = factory.newTransformer();
+ DOMSource source = new DOMSource(aDocument);
+ StreamResult result = new StreamResult(aOs);
+ identityTransform.transform(source, result);
+ } catch (TransformerException e) {
+ throw new IOException(e.getMessage(), e);
+ }
}
/**
*
* @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);
+ return os.toString();
}
/**
*/
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);
git://wamblee.org / utils / blobdiff