Java Code Examples for org.w3c.dom.Document#createElementNS()

protected Element createElementForFamilyLocal(
    Document doc, String namespace, String localName
) {
    Element result = null;
    if (namespace == null) {
        result = doc.createElementNS(null, localName);
    } else {
        String baseName = this.getBaseNamespace();
        String prefix = ElementProxy.getDefaultPrefix(baseName);
        if ((prefix == null) || (prefix.length() == 0)) {
            result = doc.createElementNS(namespace, localName);
            result.setAttributeNS(Constants.NamespaceSpecNS, "xmlns", namespace);
        } else {
            result = doc.createElementNS(namespace, prefix + ":" + localName);
            result.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:" + prefix, namespace);
        }
    }
    return result;
}
 

/**
 * Adds the specified parameters to the xsl template as variables within the alfresco namespace.
 * 
 * @param xsltModel
 *            the variables to place within the xsl template
 * @param xslTemplate
 *            the xsl template
 */
protected void addParameters(final XSLTemplateModel xsltModel, final Document xslTemplate)
{
    final Element docEl = xslTemplate.getDocumentElement();
    final String XSL_NS = docEl.getNamespaceURI();
    final String XSL_NS_PREFIX = docEl.getPrefix();

    for (Map.Entry<QName, Object> e : xsltModel.entrySet())
    {
        if (ROOT_NAMESPACE.equals(e.getKey()))
        {
            continue;
        }
        final Element el = xslTemplate.createElementNS(XSL_NS, XSL_NS_PREFIX + ":variable");
        el.setAttribute("name", e.getKey().toPrefixString());
        final Object o = e.getValue();
        if (o instanceof String || o instanceof Number || o instanceof Boolean)
        {
            el.appendChild(xslTemplate.createTextNode(o.toString()));
            // ALF-15413. Add the variables at the end of the list of children
            docEl.insertBefore(el, null);
        }
    }
}
 

static XmlNode newElementWithText(XmlProcessor processor, XmlNode reference, XmlNode.QName qname, String value) {
    if (reference instanceof org.w3c.dom.Document) throw new IllegalArgumentException("Cannot use Document node as reference");
    Document document = null;
    if (reference != null) {
        document = reference.dom.getOwnerDocument();
    } else {
        document = processor.newDocument();
    }
    Node referenceDom = (reference != null) ? reference.dom : null;
    Namespace ns = qname.getNamespace();
    Element e = (ns == null || ns.getUri().length() == 0)
        ? document.createElementNS(null, qname.getLocalName())
        : document.createElementNS(ns.getUri(),
                                   qname.qualify(referenceDom));
    if (value != null) {
        e.appendChild(document.createTextNode(value));
    }
    return XmlNode.createImpl(e);
}
 

@Test
public void testUnmarshallWithoutClzInfo() throws Exception {
    QName elName = new QName(wrapperAnnotation.targetNamespace(),
                             wrapperAnnotation.localName());

    Document doc = DOMUtils.getEmptyDocument();
    Element elNode = doc.createElementNS(elName.getNamespaceURI(),
                                         elName.getLocalPart());
    Element rtEl = doc.createElementNS(elName.getNamespaceURI(), "requestType");
    elNode.appendChild(rtEl);
    rtEl.appendChild(doc.createTextNode("Hello Test"));

    Object obj = JAXBEncoderDecoder.unmarshall(context.createUnmarshaller(),
                                               elNode,
                                               null,
                                               true);
    assertNotNull(obj);
    assertEquals(GreetMe.class,  obj.getClass());
    assertEquals("Hello Test", ((GreetMe)obj).getRequestType());
}
 

private Header findSecurityHeader(SoapMessage message, boolean create) {
    for (Header h : message.getHeaders()) {
        QName n = h.getName();
        if (n.getLocalPart().equals("Security")
            && (n.getNamespaceURI().equals(WSConstants.WSSE_NS) 
                || n.getNamespaceURI().equals(WSConstants.WSSE11_NS))) {
            return h;
        }
    }
    if (!create) {
        return null;
    }
    Document doc = DOMUtils.createDocument();
    Element el = doc.createElementNS(WSConstants.WSSE_NS, "wsse:Security");
    el.setAttributeNS(WSConstants.XMLNS_NS, "xmlns:wsse", WSConstants.WSSE_NS);
    SoapHeader sh = new SoapHeader(new QName(WSConstants.WSSE_NS, "Security"), el);
    sh.setMustUnderstand(true);
    message.getHeaders().add(sh);
    return sh;
}
 

@Test
public void testDefaultMaxAttributeLength() throws XMLStreamException {
    Document doc = DOMUtils.newDocument();
    Element documentElement = doc.createElementNS(null, "root");
    doc.appendChild(documentElement);

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < 1024; i++) {
        sb.append(i);
    }

    documentElement.setAttributeNS(null, "attr", sb.toString());

    // Should be OK
    XMLStreamReader reader = StaxUtils.createXMLStreamReader(new StringReader(StaxUtils.toString(doc)));
    assertNotNull(StaxUtils.read(reader));

    for (int i = 0; i < 1024 * 64; i++) {
        sb.append(i);
    }

    documentElement.setAttributeNS(null, "attr", sb.toString());
    assertTrue(documentElement.getAttributeNS(null, "attr").length() > (1024 * 64));

    // Should fail as we are over the max attribute length
    reader = StaxUtils.createXMLStreamReader(new StringReader(StaxUtils.toString(doc)));
    try {
        StaxUtils.read(reader);
        fail("Failure expected on exceeding the limit");
    } catch (XMLStreamException ex) {
        assertTrue(ex.getMessage().contains("Maximum attribute size limit"));
    }

}
 

/**
 * Converts a CMIS extension element to a DOM node
 * 
 * @param source the source extension
 * @param parent the parent element
 * @param doc the current document
 * 
 * @return the DOM node
 */
private static Node convertCmisExtensionElementToNode(CmisExtensionElement source, Element parent, Document doc) {
	if (source == null) {
		return null;
	}

	Element element = doc.createElementNS(
			(source.getNamespace() == null ? DEFAULT_EXTENSION_NS : source.getNamespace()), source.getName());

	if (source.getValue() != null) {
		element.appendChild(doc.createTextNode(source.getValue()));
	} else {
		for (CmisExtensionElement child : source.getChildren()) {
			element.appendChild(convertCmisExtensionElementToNode(child, element, doc));
		}
	}

	// set attributes
	if (source.getAttributes() != null) {
		for (Map.Entry<String, String> e : source.getAttributes().entrySet()) {
			element.setAttributeNS((source.getNamespace() == null ? DEFAULT_EXTENSION_NS : source.getNamespace()),
					e.getKey(), e.getValue());
		}
	}

	return element;
}
 

private static Element createLibraryElement(AntProjectHelper antProjectHelper, Document doc, String pathItem, Item item) {
    Element libraryElement = doc.createElementNS(WebProjectType.PROJECT_CONFIGURATION_NAMESPACE, TAG_LIBRARY);
    Element webFile = doc.createElementNS(WebProjectType.PROJECT_CONFIGURATION_NAMESPACE, TAG_FILE);
    libraryElement.appendChild(webFile);
    webFile.appendChild(doc.createTextNode("${" + pathItem + "}"));
    if (item.getAdditionalProperty(PATH_IN_DEPLOYMENT) != null) {
        Element pathInWar = doc.createElementNS(WebProjectType.PROJECT_CONFIGURATION_NAMESPACE, TAG_PATH_IN_WAR);
        pathInWar.appendChild(doc.createTextNode(item.getAdditionalProperty(PATH_IN_DEPLOYMENT)));
        libraryElement.appendChild(pathInWar);
    }
    AntProjectUtil.updateDirsAttributeInCPSItem(item, libraryElement);
    return libraryElement;
}
 

private Element createAppliesToElement(String addressUrl) {
    Document doc = DOMUtils.getEmptyDocument();
    Element appliesTo = doc.createElementNS(STSConstants.WSP_NS, "wsp:AppliesTo");
    appliesTo.setAttributeNS(WSS4JConstants.XMLNS_NS, "xmlns:wsp", STSConstants.WSP_NS);
    Element endpointRef = doc.createElementNS(STSConstants.WSA_NS_05, "wsa:EndpointReference");
    endpointRef.setAttributeNS(WSS4JConstants.XMLNS_NS, "xmlns:wsa", STSConstants.WSA_NS_05);
    Element address = doc.createElementNS(STSConstants.WSA_NS_05, "wsa:Address");
    address.setAttributeNS(WSS4JConstants.XMLNS_NS, "xmlns:wsa", STSConstants.WSA_NS_05);
    address.setTextContent(addressUrl);
    endpointRef.appendChild(address);
    appliesTo.appendChild(endpointRef);
    return appliesTo;
}
 

public static void main(String[] args) throws Exception {
    KeyInfoFactory fac = KeyInfoFactory.getInstance();
    KeyInfo ki = fac.newKeyInfo
        (Collections.singletonList(fac.newKeyName("foo")), "keyid");
    try {
        ki.marshal(null, null);
        throw new Exception("Should raise a NullPointerException");
    } catch (NullPointerException npe) {}

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    Document doc = dbf.newDocumentBuilder().newDocument();
    Element elem = doc.createElementNS("http://acme.org", "parent");
    doc.appendChild(elem);
    DOMStructure parent = new DOMStructure(elem);
    ki.marshal(parent, null);

    Element kiElem = DOMUtils.getFirstChildElement(elem);
    if (!kiElem.getLocalName().equals("KeyInfo")) {
        throw new Exception
            ("Should be KeyInfo element: " + kiElem.getLocalName());
    }
    Element knElem = DOMUtils.getFirstChildElement(kiElem);
    if (!knElem.getLocalName().equals("KeyName")) {
        throw new Exception
            ("Should be KeyName element: " + knElem.getLocalName());
    }
}
 

@Test
public void testCommentNode() throws Exception {
    //CXF-3034
    Document document = DocumentBuilderFactory.newInstance()
            .newDocumentBuilder().newDocument();
    Element root = document.createElementNS("urn:test", "root");
    root.appendChild(document.createComment("test comment"));
    StaxUtils.copy(StaxUtils.createXMLStreamReader(root), StaxUtils.createXMLStreamWriter(System.out));
}
 

public static void dumpXmlTests(Writer outWriter, TestCollection collection) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
    try {
        Schema schema = schemaFactory.newSchema(DesignerUtil.getResource("testschema/rule-tests_1_0_0.xsd"));
        dbf.setSchema(schema);
        dbf.setNamespaceAware(true);
        DocumentBuilder builder = getDocumentBuilder(dbf);


        Document doc = builder.newDocument();
        Element root = doc.createElementNS(NS, "test-data");
        doc.appendChild(root);

        root.setAttribute("xmlns", NS);
        root.setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
        root.setAttribute("xsi:schemaLocation", SCHEMA_LOCATION);

        new TestXmlDumper().appendTests(doc, collection.getStash());

        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, "{" + NS + "}code");
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        // FIXME whatever i try this indents by 3 spaces which is not
        //  compatible with our style
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");


        transformer.transform(new DOMSource(doc), new StreamResult(outWriter));
    } finally {
        outWriter.close();
    }

}
 

private void writeColorSettings(Document xmldoc, ColorSettings colorSettings) {
	Element colorSettingsNode = xmldoc.createElementNS(null, "colorsettings");
	xmldoc.getDocumentElement().appendChild(colorSettingsNode);
	setAttributeOptional(colorSettingsNode, "theme", colorSettings.getColorTheme().getType());
	for (ColorEntry colorEntry : ColorEntry.values()) {
		Element colorNode = xmldoc.createElementNS(null, "color");
		setAttribute(colorNode, "name", colorEntry);
		setAttributeOptional(colorNode, "background", colorSettings.getBackground(colorEntry));
		setAttributeOptional(colorNode, "foreground", colorSettings.getForeground(colorEntry));
		colorSettingsNode.appendChild(colorNode);
	}
}
 

@Test
public void testXMLDocsAsSearchOptions()
  throws ParserConfigurationException, SAXException, IOException, ResourceNotFoundException, ForbiddenUserException, FailedRequestException, ResourceNotResendableException
{
  String optionsName = "invalid";

  DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  factory.setNamespaceAware(true);
  factory.setValidating(false);
  DocumentBuilder documentBldr = factory.newDocumentBuilder();

  Document domDocument = documentBldr.newDocument();
  Element root = domDocument.createElementNS("http://marklogic.com/appservices/search","options");
  Element rf = domDocument.createElementNS("http://marklogic.com/appservices/search","return-facets");
  rf.setTextContent("true");
  root.appendChild(rf);
  root.setAttributeNS("http://www.w3.org/XML/1998/namespace", "xml:lang", "en");  // MarkLogic adds this if I don't
  domDocument.appendChild(root);

  QueryOptionsManager queryOptionsMgr =
    Common.adminClient.newServerConfigManager().newQueryOptionsManager();

  queryOptionsMgr.writeOptions(optionsName, new DOMHandle(domDocument));

  String domString =
          ((DOMImplementationLS) documentBldr.getDOMImplementation()).createLSSerializer().writeToString(domDocument);

  String optionsString = queryOptionsMgr.readOptions(optionsName, new StringHandle()).get();
  assertNotNull("Read null string for XML content",optionsString);
  logger.debug("Two XML Strings {} and {}", domString, optionsString);

  Document readDoc = queryOptionsMgr.readOptions(optionsName, new DOMHandle()).get();
  assertNotNull("Read null document for XML content",readDoc);

}
 

XMLDSigWithSecMgr() throws Exception {
    setup();
    Document doc = db.newDocument();
    Element envelope = doc.createElementNS
        ("http://example.org/envelope", "Envelope");
    envelope.setAttributeNS("http://www.w3.org/2000/xmlns/",
        "xmlns", "http://example.org/envelope");
    doc.appendChild(envelope);

    KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
    KeyPair kp = kpg.genKeyPair();

    // the policy only grants this test SocketPermission to accept, resolve
    // and connect to localhost so that it can dereference 2nd reference
    URI policyURI =
        new File(System.getProperty("test.src", "."), "policy").toURI();
    Policy.setPolicy
        (Policy.getInstance("JavaPolicy", new URIParameter(policyURI)));
    System.setSecurityManager(new SecurityManager());

    try {
        // generate a signature with SecurityManager enabled
        ArrayList refs = new ArrayList();
        refs.add(fac.newReference
            ("", sha1,
             Collections.singletonList
                (fac.newTransform(Transform.ENVELOPED,
                 (TransformParameterSpec) null)), null, null));
        refs.add(fac.newReference("http://localhost:" + ss.getLocalPort()
            + "/anything.txt", sha1));
        SignedInfo si = fac.newSignedInfo(withoutComments,
            fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), refs);
        XMLSignature sig = fac.newXMLSignature(si, null);
        DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), envelope);
        sig.sign(dsc);

        // validate a signature with SecurityManager enabled
        DOMValidateContext dvc = new DOMValidateContext
            (kp.getPublic(), envelope.getFirstChild());

        // disable secure validation mode so that http reference will work
        dvc.setProperty("org.jcp.xml.dsig.secureValidation", Boolean.FALSE);

        sig = fac.unmarshalXMLSignature(dvc);
        if (!sig.validate(dvc)) {
            throw new Exception
                ("XMLDSigWithSecMgr signature validation FAILED");
        }
    } catch (SecurityException se) {
        throw new Exception("XMLDSigWithSecMgr FAILED", se);
    }
    ss.close();
}
 

public Document toXML() throws IOException {
    try {
        DocumentBuilderFactory factory = DocumentBuilderFactory
                .newInstance();
        factory.setNamespaceAware(true);
        Document document = factory.newDocumentBuilder().newDocument();

        Element root = document.createElementNS("http://oodt.jpl.nasa.gov/1.0/cas", "metadata");
        root.setPrefix("cas");
        document.appendChild(root);

        // now add the set of metadata elements in the properties object
        for (String key : this.getAllKeys()) {
            Element metadataElem = document.createElement("keyval");
            Element keyElem = document.createElement("key");
            if (this.useCDATA) {
                keyElem.appendChild(document.createCDATASection(key));
            } else {
                keyElem.appendChild(document.createTextNode(URLEncoder.encode(key, this.xmlEncoding)));
            }
            
            metadataElem.appendChild(keyElem);

            metadataElem.setAttribute("type", "vector");

            for (String value : this.getAllMetadata(key)) {
                Element valElem = document.createElement("val");
                if (value == null) {
                    throw new Exception("Attempt to write null value "
                            + "for property: [" + key + "]: val: [null]");
                }
                if (this.useCDATA) {
                    valElem.appendChild(document
                        .createCDATASection(value));
                } else {
                    valElem.appendChild(document.createTextNode(URLEncoder
                        .encode(value, this.xmlEncoding)));
                }
                metadataElem.appendChild(valElem);
            }
            root.appendChild(metadataElem);
        }
        return document;
    } catch (Exception e) {
        LOG.log(Level.SEVERE, e.getMessage());
        throw new IOException(
                "Failed to create XML DOM Document for SerializableMetadata : "
                        + e.getMessage());
    }
}
 

@Override
public Node toNode(AbstractWmlConversionContext context, Object unmarshalledNode, 
		Node modelContent, TransformState state, Document doc)
		throws TransformerException {
	R.Sym modelData = (R.Sym)unmarshalledNode;
	String fontName = modelData.getFont();
	String textValue =  modelData.getChar();
	PhysicalFont pf = context.getWmlPackage().getFontMapper().get(fontName);
	char chValue = '\0';
	Typeface typeface = null;
  
  	if (pf != null) {
  		typeface = pf.getTypeface();
  		
  	  	if (typeface != null) {
	  	  	if (textValue.length() > 1) {
	  	  		try {
	  	  			chValue = (char)Integer.parseInt(textValue, 16);
	  	  		}
	  	  		catch (NumberFormatException nfe) {
	  	  			chValue = '\0';
	  	  		}
	  	  	}
	  	  	else {
	  	  		chValue = textValue.charAt(0);
	  	  	}
	  	  	
	  	  	if (chValue != '\0') {
	  	  		if (chValue > 0xf000) { //let's check first the character in the lower ascii (Pre-process according to ECMA-376 2.3.3.29)
	  	  			chValue -= 0xf000;
	  	  		}
	  	  		if (typeface.mapChar(chValue) == 0) {
	  	  			chValue += 0xf000;
	  	  			if (typeface.mapChar(chValue) == 0) {
	  	  				chValue = '\0';
	  	  			}
	  	  		}
	  	  		if (chValue != '\0') {//character was found
	  	  			textValue = Character.toString(chValue);
	  	  		}
	  	  	}
  	  	}
  	}
    
    Text theChar = doc.createTextNode(textValue);
	DocumentFragment docfrag = doc.createDocumentFragment();

	if (pf==null) {
		log.warn("No physical font present for:" + fontName);		
	    docfrag.appendChild( theChar );
		
	} else {
		
	    Element foInline = doc.createElementNS("http://www.w3.org/1999/XSL/Format", "fo:inline");
	    docfrag.appendChild(foInline);
		
	    foInline.setAttribute("font-family", pf.getName() );
	    foInline.appendChild(theChar);
	}
    
    return docfrag;
}
 

/**
 * Add an action binding to project.xml.
 * If there is no required context, the action is also added to the context menu of the project node.
 * @param command the command name
 * @param scriptPath the path to the generated script
 * @param target the name of the target (in scriptPath)
 * @param propertyName a property name to hold the selection (or null for no context, in which case remainder should be null)
 * @param dir the raw text to use for the directory name
 * @param pattern the regular expression to match, or null
 * @param format the format to use
 * @param separator the separator to use for multiple files, or null for single file only
 */
void addBinding(String command, String scriptPath, String target, String propertyName, String dir, String pattern, String format, String separator) throws IOException {
    // XXX cannot use FreeformProjectGenerator since that is currently not a public support SPI from ant/freeform
    // XXX should this try to find an existing binding? probably not, since it is assumed that if there was one, we would never get here to begin with
    Element data = Util.getPrimaryConfigurationData(helper);
    Element ideActions = XMLUtil.findElement(data, "ide-actions", Util.NAMESPACE); // NOI18N
    if (ideActions == null) {
        //fix for #58442:
        ideActions = data.getOwnerDocument().createElementNS(Util.NAMESPACE, "ide-actions"); // NOI18N
        XMLUtil.appendChildElement(data, ideActions, rootElementsOrder);
    }
    Document doc = data.getOwnerDocument();
    Element action = doc.createElementNS(Util.NAMESPACE, "action"); // NOI18N
    action.setAttribute("name", command); // NOI18N
    Element script = doc.createElementNS(Util.NAMESPACE, "script"); // NOI18N
    script.appendChild(doc.createTextNode(scriptPath));
    action.appendChild(script);
    Element targetEl = doc.createElementNS(Util.NAMESPACE, "target"); // NOI18N
    targetEl.appendChild(doc.createTextNode(target));
    action.appendChild(targetEl);
    if (propertyName != null) {
        Element context = doc.createElementNS(Util.NAMESPACE, "context"); // NOI18N
        Element property = doc.createElementNS(Util.NAMESPACE, "property"); // NOI18N
        property.appendChild(doc.createTextNode(propertyName));
        context.appendChild(property);
        Element folder = doc.createElementNS(Util.NAMESPACE, "folder"); // NOI18N
        folder.appendChild(doc.createTextNode(dir));
        context.appendChild(folder);
        if (pattern != null) {
            Element patternEl = doc.createElementNS(Util.NAMESPACE, "pattern"); // NOI18N
            patternEl.appendChild(doc.createTextNode(pattern));
            context.appendChild(patternEl);
        }
        Element formatEl = doc.createElementNS(Util.NAMESPACE, "format"); // NOI18N
        formatEl.appendChild(doc.createTextNode(format));
        context.appendChild(formatEl);
        Element arity = doc.createElementNS(Util.NAMESPACE, "arity"); // NOI18N
        if (separator != null) {
            Element separatorEl = doc.createElementNS(Util.NAMESPACE, "separated-files"); // NOI18N
            separatorEl.appendChild(doc.createTextNode(separator));
            arity.appendChild(separatorEl);
        } else {
            arity.appendChild(doc.createElementNS(Util.NAMESPACE, "one-file-only")); // NOI18N
        }
        context.appendChild(arity);
        action.appendChild(context);
    } else {
        // Add a context menu item, since it applies to the project as a whole.
        // Assume there is already a <context-menu> defined, which is quite likely.
        Element view = XMLUtil.findElement(data, "view", Util.NAMESPACE); // NOI18N
        if (view != null) {
            Element contextMenu = XMLUtil.findElement(view, "context-menu", Util.NAMESPACE); // NOI18N
            if (contextMenu != null) {
                Element ideAction = doc.createElementNS(Util.NAMESPACE, "ide-action"); // NOI18N
                ideAction.setAttribute("name", command); // NOI18N
                contextMenu.appendChild(ideAction);
            }
        }
    }
    ideActions.appendChild(action);
    Util.putPrimaryConfigurationData(helper, data);
    ProjectManager.getDefault().saveProject(project);
}
 

/**
 * Given an element in a Document, encrypt the element and replace the element in the document with the encrypted
 * data
 *
 * @param elementQName QName of the element that we like to encrypt
 * @param document
 * @param publicKey
 * @param secretKey
 * @param keySize
 * @param wrappingElementQName A QName of an element that will wrap the encrypted element
 * @param addEncryptedKeyInKeyInfo Need for the EncryptedKey to be placed in ds:KeyInfo
 *
 * @throws ProcessingException
 */
public static void encryptElement(QName elementQName, Document document, PublicKey publicKey, SecretKey secretKey,
                                  int keySize, QName wrappingElementQName, boolean addEncryptedKeyInKeyInfo) throws ProcessingException {
    if (elementQName == null)
        throw logger.nullArgumentError("elementQName");
    if (document == null)
        throw logger.nullArgumentError("document");
    String wrappingElementPrefix = wrappingElementQName.getPrefix();
    if (wrappingElementPrefix == null || "".equals(wrappingElementPrefix))
        throw logger.wrongTypeError("Wrapping element prefix invalid");

    Element documentElement = DocumentUtil.getElement(document, elementQName);

    if (documentElement == null)
        throw logger.domMissingDocElementError(elementQName.toString());

    XMLCipher cipher = null;
    EncryptedKey encryptedKey = encryptKey(document, secretKey, publicKey, keySize);

    String encryptionAlgorithm = getXMLEncryptionURL(secretKey.getAlgorithm(), keySize);
    // Encrypt the Document
    try {
        cipher = XMLCipher.getInstance(encryptionAlgorithm);
        cipher.init(XMLCipher.ENCRYPT_MODE, secretKey);
    } catch (XMLEncryptionException e1) {
        throw logger.processingError(e1);
    }

    Document encryptedDoc;
    try {
        encryptedDoc = cipher.doFinal(document, documentElement);
    } catch (Exception e) {
        throw logger.processingError(e);
    }

    // The EncryptedKey element is added
    Element encryptedKeyElement = cipher.martial(document, encryptedKey);

    final String wrappingElementName;

    if (StringUtil.isNullOrEmpty(wrappingElementPrefix)) {
        wrappingElementName = wrappingElementQName.getLocalPart();
    } else {
        wrappingElementName = wrappingElementPrefix + ":" + wrappingElementQName.getLocalPart();
    }
    // Create the wrapping element and set its attribute NS
    Element wrappingElement = encryptedDoc.createElementNS(wrappingElementQName.getNamespaceURI(), wrappingElementName);

    if (! StringUtil.isNullOrEmpty(wrappingElementPrefix)) {
        wrappingElement.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:" + wrappingElementPrefix, wrappingElementQName.getNamespaceURI());
    }

    // Get Hold of the Cipher Data
    NodeList cipherElements = encryptedDoc.getElementsByTagNameNS(EncryptionConstants.EncryptionSpecNS, EncryptionConstants._TAG_ENCRYPTEDDATA);
    if (cipherElements == null || cipherElements.getLength() == 0)
        throw logger.domMissingElementError("xenc:EncryptedData");
    Element encryptedDataElement = (Element) cipherElements.item(0);

    Node parentOfEncNode = encryptedDataElement.getParentNode();
    parentOfEncNode.replaceChild(wrappingElement, encryptedDataElement);

    wrappingElement.appendChild(encryptedDataElement);

    if (addEncryptedKeyInKeyInfo) {
        // Outer ds:KeyInfo Element to hold the EncryptionKey
        Element sigElement = encryptedDoc.createElementNS(XMLSignature.XMLNS, DS_KEY_INFO);
        sigElement.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:ds", XMLSignature.XMLNS);
        sigElement.appendChild(encryptedKeyElement);

        // Insert the Encrypted key before the CipherData element
        NodeList nodeList = encryptedDoc.getElementsByTagNameNS(EncryptionConstants.EncryptionSpecNS, EncryptionConstants._TAG_CIPHERDATA);
        if (nodeList == null || nodeList.getLength() == 0)
            throw logger.domMissingElementError("xenc:CipherData");
        Element cipherDataElement = (Element) nodeList.item(0);
        Node cipherParent = cipherDataElement.getParentNode();
        cipherParent.insertBefore(sigElement, cipherDataElement);
    } else {
        // Add the encrypted key as a child of the wrapping element
        wrappingElement.appendChild(encryptedKeyElement);
    }
}
 

/**
 * Creates an element in the specified namespace, with the specified tag
 * and namespace prefix.
 *
 * @param doc the owner document
 * @param tag the tag
 * @param nsURI the namespace URI
 * @param prefix the namespace prefix
 * @return the newly created element
 */
public static Element createElement(Document doc, String tag,
                                    String nsURI, String prefix)
{
    String qName = (prefix == null || prefix.length() == 0)
                   ? tag : prefix + ":" + tag;
    return doc.createElementNS(nsURI, qName);
}