Example usage for org.w3c.dom Node appendChild

Introduction

In this page you can find the example usage for org.w3c.dom Node appendChild.

Prototype

public Node appendChild(Node newChild) throws DOMException;

Source Link

Document

Adds the node newChild to the end of the list of children of this node.

Usage

From source file:org.apache.ode.utils.DOMUtils.java

/**
 * Deep clone, but don't fry, the given node in the context of the given document.
 * For all intents and purposes, the clone is the exact same copy of the node,
 * except that it might have a different owner document.
 *
 * This method is fool-proof, unlike the <code>adoptNode</code> or <code>adoptNode</code> methods,
 * in that it doesn't assume that the given node has a parent or a owner document.
 *
 * @param document/*  www . j  a v  a 2 s .c  o m*/
 * @param sourceNode
 * @return a clone of node
 */
public static Node cloneNode(Document document, Node sourceNode) {
    Node clonedNode = null;

    // what is my name?
    QName sourceQName = getNodeQName(sourceNode);
    String nodeName = sourceQName.getLocalPart();
    String namespaceURI = sourceQName.getNamespaceURI();

    // if the node is unqualified, don't assume that it inherits the WS-BPEL target namespace
    if (Namespaces.WSBPEL2_0_FINAL_EXEC.equals(namespaceURI)) {
        namespaceURI = null;
    }

    switch (sourceNode.getNodeType()) {
    case Node.ATTRIBUTE_NODE:
        if (namespaceURI == null) {
            clonedNode = document.createAttribute(nodeName);
        } else {
            String prefix = ((Attr) sourceNode).lookupPrefix(namespaceURI);
            // the prefix for the XML namespace can't be looked up, hence this...
            if (prefix == null && namespaceURI.equals(NS_URI_XMLNS)) {
                prefix = "xmlns";
            }
            // if a prefix exists, qualify the name with it
            if (prefix != null && !"".equals(prefix)) {
                nodeName = prefix + ":" + nodeName;
            }
            // create the appropriate type of attribute
            if (prefix != null) {
                clonedNode = document.createAttributeNS(namespaceURI, nodeName);
            } else {
                clonedNode = document.createAttribute(nodeName);
            }
        }
        break;
    case Node.CDATA_SECTION_NODE:
        clonedNode = document.createCDATASection(((CDATASection) sourceNode).getData());
        break;
    case Node.COMMENT_NODE:
        clonedNode = document.createComment(((Comment) sourceNode).getData());
        break;
    case Node.DOCUMENT_FRAGMENT_NODE:
        clonedNode = document.createDocumentFragment();
        break;
    case Node.DOCUMENT_NODE:
        clonedNode = document;
        break;
    case Node.ELEMENT_NODE:
        // create the appropriate type of element
        if (namespaceURI == null) {
            clonedNode = document.createElement(nodeName);
        } else {
            String prefix = namespaceURI.equals(Namespaces.XMLNS_URI) ? "xmlns"
                    : ((Element) sourceNode).lookupPrefix(namespaceURI);
            if (prefix != null && !"".equals(prefix)) {
                nodeName = prefix + ":" + nodeName;
                clonedNode = document.createElementNS(namespaceURI, nodeName);
            } else {
                clonedNode = document.createElement(nodeName);
            }
        }
        // attributes are not treated as child nodes, so copy them explicitly
        NamedNodeMap attributes = ((Element) sourceNode).getAttributes();
        for (int i = 0; i < attributes.getLength(); i++) {
            Attr attributeClone = (Attr) cloneNode(document, attributes.item(i));
            if (attributeClone.getNamespaceURI() == null) {
                ((Element) clonedNode).setAttributeNode(attributeClone);
            } else {
                ((Element) clonedNode).setAttributeNodeNS(attributeClone);
            }
        }
        break;
    case Node.ENTITY_NODE:
        // TODO
        break;
    case Node.ENTITY_REFERENCE_NODE:
        clonedNode = document.createEntityReference(nodeName);
        // TODO
        break;
    case Node.NOTATION_NODE:
        // TODO
        break;
    case Node.PROCESSING_INSTRUCTION_NODE:
        clonedNode = document.createProcessingInstruction(((ProcessingInstruction) sourceNode).getData(),
                nodeName);
        break;
    case Node.TEXT_NODE:
        clonedNode = document.createTextNode(((Text) sourceNode).getData());
        break;
    default:
        break;
    }

    // clone children of element and attribute nodes
    NodeList sourceChildren = sourceNode.getChildNodes();
    if (sourceChildren != null) {
        for (int i = 0; i < sourceChildren.getLength(); i++) {
            Node sourceChild = sourceChildren.item(i);
            Node clonedChild = cloneNode(document, sourceChild);
            clonedNode.appendChild(clonedChild);
            // if the child has a textual value, parse it for any embedded prefixes
            if (clonedChild.getNodeType() == Node.TEXT_NODE
                    || clonedChild.getNodeType() == Node.CDATA_SECTION_NODE) {
                parseEmbeddedPrefixes(sourceNode, clonedNode, clonedChild);
            }
        }
    }
    return clonedNode;
}

---

From source file:org.apache.ranger.utils.install.XmlConfigChanger.java

private void addProperty(String propName, String val) {
    NodeList nl = doc.getElementsByTagName(ROOT_NODE_NAME);
    Node rootConfig = nl.item(0);
    rootConfig.appendChild(createNewElement(propName, val));
}

---

From source file:org.apache.ranger.utils.install.XmlConfigChanger.java

private void modProperty(String propName, String val, boolean createIfNotExists) {
    Node node = findProperty(propName);
    if (node != null) {
        NodeList cnl = node.getChildNodes();
        for (int j = 0; j < cnl.getLength(); j++) {
            String nodeName = cnl.item(j).getNodeName();
            if (nodeName.equals(VALUE_NODE_NAME)) {
                if (cnl.item(j).hasChildNodes()) {
                    cnl.item(j).getChildNodes().item(0).setNodeValue(val);
                } else {
                    Node propValueNode = cnl.item(j);
                    Node txtNode = doc.createTextNode(val);
                    propValueNode.appendChild(txtNode);
                    txtNode.setNodeValue(val);
                }//  w  w  w . java2 s  .co m
                return;
            }
        }
    }
    if (createIfNotExists) {
        addProperty(propName, val);
    }
}

---

From source file:org.apache.ranger.utils.install.XmlConfigChanger.java

private Element createNewElement(String propName, String val) {
    Element ret = null;//from www.  j  av a2s .c  o  m

    try {
        if (doc != null) {
            ret = doc.createElement(PROPERTY_NODE_NAME);
            Node propNameNode = doc.createElement(NAME_NODE_NAME);
            Node txtNode = doc.createTextNode(propName);
            propNameNode.appendChild(txtNode);
            propNameNode.setNodeValue(propName);
            ret.appendChild(propNameNode);

            Node propValueNode = doc.createElement(VALUE_NODE_NAME);
            txtNode = doc.createTextNode(val);
            propValueNode.appendChild(txtNode);
            propValueNode.setNodeValue(propName);
            ret.appendChild(propValueNode);
        }
    } catch (Throwable t) {
        throw new RuntimeException("createNewElement(" + propName + ") with value [" + val + "] failed.", t);
    }

    return ret;
}

---

From source file:org.apache.servicemix.jbi.deployer.utils.ManagementSupport.java

private static Element createChild(Node parent, String name, String text) {
    Document doc = parent instanceof Document ? (Document) parent : parent.getOwnerDocument();
    Element child = doc.createElementNS(HTTP_JAVA_SUN_COM_XML_NS_JBI_MANAGEMENT_MESSAGE, name);
    if (text != null) {
        child.appendChild(doc.createTextNode(text));
    }/*ww  w  . ja v  a  2s  .  c o m*/
    parent.appendChild(child);
    return child;
}

---

From source file:org.apache.shindig.gadgets.render.RenderingGadgetRewriter.java

protected void injectOnLoadHandlers(Node bodyTag) {
    Element onloadScript = bodyTag.getOwnerDocument().createElement("script");
    bodyTag.appendChild(onloadScript);
    onloadScript.appendChild(bodyTag.getOwnerDocument().createTextNode("gadgets.util.runOnLoadHandlers();"));
}

---

From source file:org.apache.shindig.gadgets.render.RenderingGadgetRewriter.java

/**
 * Injects message bundles into the gadget output.
 * @throws GadgetException If we are unable to retrieve the message bundle.
 *//*from www .j  a  v a  2s.  c  o  m*/
protected void injectMessageBundles(MessageBundle bundle, Node scriptTag) throws GadgetException {
    String msgs = bundle.toJSONString();

    Text text = scriptTag.getOwnerDocument().createTextNode("gadgets.Prefs.setMessages_(");
    text.appendData(msgs);
    text.appendData(");");
    scriptTag.appendChild(text);
}

---

From source file:org.apache.shindig.gadgets.render.RenderingGadgetRewriter.java

/**
 * Injects default values for user prefs into the gadget output.
 *//*from  w ww  .  j ava  2 s .c o  m*/
protected void injectDefaultPrefs(Gadget gadget, Node scriptTag) {
    Collection<UserPref> prefs = gadget.getSpec().getUserPrefs().values();
    Map<String, String> defaultPrefs = Maps.newHashMapWithExpectedSize(prefs.size());
    for (UserPref up : prefs) {
        defaultPrefs.put(up.getName(), up.getDefaultValue());
    }
    Text text = scriptTag.getOwnerDocument().createTextNode("gadgets.Prefs.setDefaultPrefs_(");
    text.appendData(JsonSerializer.serialize(defaultPrefs));
    text.appendData(");");
    scriptTag.appendChild(text);
}

---

From source file:org.apache.shindig.gadgets.render.RenderingGadgetRewriter.java

/**
 * Injects preloads into the gadget output.
 *
 * If preloading fails for any reason, we just output an empty object.
 *//*  www .j a  v a2s. co  m*/
protected void injectPreloads(Gadget gadget, Node scriptTag) {
    List<Object> preload = Lists.newArrayList();
    for (PreloadedData preloaded : gadget.getPreloads()) {
        try {
            preload.addAll(preloaded.toJson());
        } catch (PreloadException pe) {
            // This will be thrown in the event of some unexpected exception. We can move on.
            LOG.log(Level.WARNING, "Unexpected error when preloading", pe);
        }
    }
    Text text = scriptTag.getOwnerDocument().createTextNode("gadgets.io.preloaded_=");
    text.appendData(JsonSerializer.serialize(preload));
    text.appendData(";");
    scriptTag.appendChild(text);
}

---

From source file:org.apache.shindig.gadgets.servlet.CajaContentRewriter.java

public void rewrite(Gadget gadget, MutableContent mc) {
    if (!cajaEnabled(gadget))
        return;//from ww  w  .j a v a  2s  .c o  m

    GadgetContext gadgetContext = gadget.getContext();
    boolean debug = gadgetContext.getDebug();
    Document doc = mc.getDocument();

    // Serialize outside of MutableContent, to prevent a re-parse.
    String docContent = HtmlSerialization.serialize(doc);
    String cacheKey = HashUtil.checksum(docContent.getBytes());
    Node root = doc.createDocumentFragment();
    root.appendChild(doc.getDocumentElement());

    Node cajoledData = null;
    if (cajoledCache != null && !debug) {
        Element cajoledOutput = cajoledCache.getElement(cacheKey);
        if (cajoledOutput != null) {
            cajoledData = doc.adoptNode(cajoledOutput);
            createContainerFor(doc, cajoledData);
            mc.documentChanged();
        }
    }

    if (cajoledData == null) {
        UriFetcher fetcher = makeFetcher(gadget);
        UriPolicy policy = makePolicy(gadget);
        URI javaGadgetUri = gadgetContext.getUrl().toJavaUri();
        MessageQueue mq = new SimpleMessageQueue();
        MessageContext context = new MessageContext();
        PluginMeta meta = new PluginMeta(fetcher, policy);
        PluginCompiler compiler = makePluginCompiler(meta, mq);

        compiler.setMessageContext(context);

        if (debug) {
            // This will load cajita-debugmode.js
            gadget.addFeature("caja-debug");
            compiler.setGoals(compiler.getGoals().without(PipelineMaker.ONE_CAJOLED_MODULE)
                    .with(PipelineMaker.ONE_CAJOLED_MODULE_DEBUG));
        }

        InputSource is = new InputSource(javaGadgetUri);
        boolean safe = false;

        compiler.addInput(new Dom(root), javaGadgetUri);

        try {
            if (!compiler.run()) {
                throw new GadgetRewriteException("Gadget has compile errors");
            }
            StringBuilder scriptBody = new StringBuilder();
            CajoledModule cajoled = compiler.getJavascript();
            TokenConsumer tc = debug ? new JsPrettyPrinter(new Concatenator(scriptBody))
                    : new JsMinimalPrinter(new Concatenator(scriptBody));
            cajoled.render(new RenderContext(tc).withAsciiOnly(true).withEmbeddable(true));

            tc.noMoreTokens();

            Node html = compiler.getStaticHtml();

            Element script = doc.createElementNS(Namespaces.HTML_NAMESPACE_URI, "script");
            script.setAttributeNS(Namespaces.HTML_NAMESPACE_URI, "type", "text/javascript");
            script.appendChild(doc.createTextNode(scriptBody.toString()));

            Element cajoledOutput = doc.createElement("div");
            cajoledOutput.setAttribute("id", "cajoled-output");
            cajoledOutput.setAttribute("classes", "g___");
            cajoledOutput.setAttribute("style", "position: relative;");

            cajoledOutput.appendChild(doc.adoptNode(html));
            cajoledOutput.appendChild(tameCajaClientApi(doc));
            cajoledOutput.appendChild(doc.adoptNode(script));

            Element messagesNode = formatErrors(doc, is, docContent, mq, /* is invisible */ false);
            cajoledOutput.appendChild(messagesNode);
            if (cajoledCache != null && !debug) {
                cajoledCache.addElement(cacheKey, cajoledOutput);
            }

            cajoledData = cajoledOutput;
            createContainerFor(doc, cajoledData);
            mc.documentChanged();
            safe = true;
            HtmlSerialization.attach(doc, htmlSerializer, null);
        } catch (GadgetRewriteException e) {
            // There were cajoling errors
            // Content is only used to produce useful snippets with error messages
            createContainerFor(doc, formatErrors(doc, is, docContent, mq, true /* visible */));
            logException(e, mq);
            safe = true;
        } finally {
            if (!safe) {
                // Fail safe
                mc.setContent("");
            }
        }
    }
}

---

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