X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=support%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fxml%2FDomUtils.java;h=f283ee07d9d51ff344d9f803fede157a70eba521;hb=c59a5c77753484df1a1aed3214f5f34d9692c42c;hp=3825bacda36adbb32ab3c00d5ff3f2185b5f9afe;hpb=32a62ca2c752e33a7873ac868a7a1f289caedcd4;p=utils diff --git a/support/general/src/main/java/org/wamblee/xml/DomUtils.java b/support/general/src/main/java/org/wamblee/xml/DomUtils.java index 3825bacd..f283ee07 100644 --- a/support/general/src/main/java/org/wamblee/xml/DomUtils.java +++ b/support/general/src/main/java/org/wamblee/xml/DomUtils.java @@ -1,5 +1,5 @@ /* - * 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. @@ -13,7 +13,6 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - package org.wamblee.xml; import java.io.ByteArrayInputStream; @@ -25,38 +24,44 @@ import java.util.ArrayList; 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. @@ -67,136 +72,30 @@ public final class DomUtils { } /** - * 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); } /** @@ -210,8 +109,10 @@ public final class DomUtils { */ 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); @@ -229,19 +130,24 @@ public final class DomUtils { NamedNodeMap attributes = aElement.getAttributes(); Map uniqueAttributes = new TreeMap(); List attlist = new ArrayList(); + 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);