Example usage for org.w3c.dom Element getFirstChild

List of usage examples for org.w3c.dom Element getFirstChild

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Introduction

In this page you can find the example usage for org.w3c.dom Element getFirstChild.

Prototype

public Node getFirstChild();

Source Link

Document

The first child of this node.

Usage

From source file:com.google.appengine.tools.mapreduce.ConfigurationTemplatePreprocessor.java

/**
 * For a single {@code Configuration} property, process it, looking
 * for parameter-related attributes, and updating the relevant object maps
 * if found.//from   w  ww.j  a  va  2 s . c  o  m
 */
private void populateParameterFromProperty(Element prop) {
    String name = null;
    String humanName = null;
    Element templateValue = null;
    String defaultValue = null;

    NodeList fields = prop.getChildNodes();
    for (int j = 0; j < fields.getLength(); j++) {
        Node fieldNode = fields.item(j);
        if (!(fieldNode instanceof Element)) {
            continue;
        }
        Element field = (Element) fieldNode;
        if ("name".equals(field.getTagName())) {
            if (field.hasAttribute("human")) {
                humanName = field.getAttribute("human");
            }
            name = ((Text) field.getFirstChild()).getData().trim();
        }
        if ("value".equals(field.getTagName()) && field.hasAttribute("template")) {
            templateValue = field;
            if (field.getAttribute("template").equals("optional")) {
                if (field.getFirstChild() != null) {
                    defaultValue = field.getFirstChild().getTextContent();
                } else {
                    defaultValue = "";
                }
            }
        }
    }

    if (templateValue != null) {
        nameToMetadata.put(name, new TemplateEntryMetadata(name, humanName, defaultValue));
        nameToValueElement.put(name, templateValue);
    }
}

From source file:com.alfaariss.oa.util.configuration.ConfigurationManager.java

private synchronized Element getSubSection(Element eRootSection, String sSectionType) {
    assert eRootSection != null : "Suplied root section is empty";

    if (eRootSection.hasChildNodes()) {
        Node nTemp = eRootSection.getFirstChild();
        while (nTemp != null) {
            if (nTemp.getNodeType() == Node.ELEMENT_NODE && nTemp.getNodeName().equals(sSectionType)) {
                return (Element) nTemp;
            }/*from  w  w w .  j av a2 s . co m*/
            nTemp = nTemp.getNextSibling();
        }
    }
    return null;
}

From source file:com.bstek.dorado.view.config.XmlDocumentPreprocessor.java

private Element doFindElementById(Element element, String id) {
    Element result = null;//from   w w w  .  java 2  s .c om
    Node child = element.getFirstChild();
    while (child != null) {
        if (child instanceof Element) {
            Element childElement = (Element) child;
            if (id.equals(childElement.getAttribute(ViewXmlConstants.ATTRIBUTE_ID))) {
                result = childElement;
                break;
            }
        }
        child = child.getNextSibling();
    }

    if (result == null) {
        child = element.getFirstChild();
        while (child != null) {
            if (child instanceof Element) {
                result = doFindElementById((Element) child, id);
                if (result != null)
                    break;
            }
            child = child.getNextSibling();
        }
    }
    return result;
}

From source file:com.enonic.esl.xml.XMLTool.java

/**
 * Removes a child element from a parent element, and returns the next element to the removed one.
 *
 * @param parent The parent element to the child to be removed.
 * @param child  The child element to remove.
 * @return The next element to the removed child.
 *//*from  www .  ja va  2 s.  c  om*/
public static Element removeChildFromParent(Element parent, Element child) {

    Element previousChild = (Element) child.getPreviousSibling();

    // If the child to remove is the first child
    if (previousChild == null) {
        parent.removeChild(child);
        // Return the first child as the next child
        return (Element) parent.getFirstChild();
    }
    // If the child is not the first child
    else {
        parent.removeChild(child);
        return (Element) previousChild.getNextSibling();
    }
}

From source file:com.bstek.dorado.view.config.XmlDocumentPreprocessor.java

@SuppressWarnings("unchecked")
private void postProcessNodeReplacement(Element element) {
    Document ownerDocument = element.getOwnerDocument();
    Node child = element.getFirstChild();
    while (child != null) {
        Node nextChild = child.getNextSibling();
        if (child instanceof Element) {
            if (child.getUserData("dorado.delete") != null) {
                List<Element> replaceContent = (List<Element>) child.getUserData("dorado.replace");
                if (replaceContent != null) {
                    for (Element el : replaceContent) {
                        Element clonedElement = (Element) ownerDocument.importNode(el, true);
                        element.insertBefore(clonedElement, child);
                    }/*from   ww  w.j a v  a 2 s  .co  m*/
                    child.setUserData("dorado.replace", null, null);
                }
                element.removeChild(child);
                child.setUserData("dorado.delete", null, null);
            }
        }
        child = nextChild;
    }
}

From source file:edu.lternet.pasta.portal.search.BrowseGroup.java

private void addFetchDownElements() {
    String fetchDownXML = ControlledVocabularyClient.webServiceFetchDown(this.termId);
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    try {//from  w w  w .  j a  v  a 2s .c om
        DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
        InputStream inputStream = IOUtils.toInputStream(fetchDownXML, "UTF-8");
        Document document = documentBuilder.parse(inputStream);
        Element documentElement = document.getDocumentElement();
        NodeList documentNodeList = documentElement.getElementsByTagName("term");

        for (int i = 0; i < documentNodeList.getLength(); i++) {
            Node documentNode = documentNodeList.item(i);
            NodeList childNodes = documentNode.getChildNodes();
            String termId = null;
            String value = null;
            String hasMoreDown = null;

            for (int j = 0; j < childNodes.getLength(); j++) {

                Node childNode = childNodes.item(j);
                if (childNode instanceof Element) {
                    Element childElement = (Element) childNode;
                    if (childElement.getTagName().equals("term_id")) {
                        Text text = (Text) childElement.getFirstChild();
                        termId = text.getData().trim();
                    } else if (childElement.getTagName().equals("string")) {
                        Text text = (Text) childElement.getFirstChild();
                        value = text.getData().trim();
                    } else if (childElement.getTagName().equals("hasMoreDown")) {
                        Text text = (Text) childElement.getFirstChild();
                        hasMoreDown = text.getData().trim();
                    }
                }
            }

            if (hasMoreDown != null && hasMoreDown.equals("1")) {
                BrowseGroup downTerm = new BrowseGroup(value);
                this.addBrowseGroup(downTerm);
                downTerm.setTermId(termId);
                downTerm.setHasMoreDown(hasMoreDown);
                downTerm.addFetchDownElements();

            } else {
                BrowseTerm downTerm = new BrowseTerm(value);
                downTerm.setTermId(termId);
                this.addBrowseTerm(downTerm);
            }
        }
    } catch (Exception e) {
        logger.error("Exception:\n" + e.getMessage());
        e.printStackTrace();
    }

    if (!isBlacklistedTerm(this.value)) {
        BrowseTerm browseTerm = new BrowseTerm(this.value);
        browseTerm.setLevel(level + 1);
        this.addBrowseTerm(browseTerm);
    }

}

From source file:com.firegnom.valkyrie.map.tiled.TiledZoneLoader.java

/**
 * Gets the action index.// www  .j  av  a2s . c om
 *
 * @param element the element
 * @return the action index
 * @throws UnsupportedEncodingException the unsupported encoding exception
 */
public ActionIndex getActionIndex(Element element) throws UnsupportedEncodingException {
    ActionIndex ret = new ActionIndex();
    if (!element.getAttribute("name").equals("_ContextActions")) {
        return null;
    }
    // read object properties
    NodeList objectNodes = element.getElementsByTagName("object");
    for (int i = 0; i < objectNodes.getLength(); i++) {
        Element objElement = (Element) objectNodes.item(i);
        String container = objElement.getAttribute("name");
        int x = Integer.parseInt(objElement.getAttribute("x"));
        int y = Integer.parseInt(objElement.getAttribute("y"));
        int width = Integer.parseInt(objElement.getAttribute("width"));
        int height = Integer.parseInt(objElement.getAttribute("height"));
        // now read the layer properties
        Element propsElement = (Element) objElement.getElementsByTagName("properties").item(0);
        if (propsElement != null) {
            NodeList properties = propsElement.getElementsByTagName("property");
            if (properties != null) {

                for (int p = 0; p < properties.getLength(); p++) {
                    try {
                        ContextAction ca = new ContextAction();
                        ca.container = container;
                        ca.x = x;
                        ca.y = y;
                        ca.width = width;
                        ca.height = height;
                        Element propElement = (Element) properties.item(p);
                        ca.name = propElement.getAttribute("name");
                        String script = ((CDATASection) (propElement.getFirstChild().getNextSibling()))
                                .getData();
                        ca.script = script.getBytes("UTF-8");
                        // Log.d("",ca.toString());
                        ret.put(ca);

                    } catch (Exception e) {
                        e.printStackTrace();
                        Log.e("TiledZoneLoader", "Problems with loading actions from context action layer");
                    }
                }
            }
        }

    }

    return ret;

}

From source file:com.google.appengine.tools.mapreduce.ConfigurationTemplatePreprocessor.java

/**
 * Substitutes in the values in params for templated values. After this method
 * is called, any subsequent calls to this method for the same object result in
 * an {@link IllegalStateException}. To preprocess the template again,
 * create another {@code ConfigurationTemplatePreprocessor} from the source XML.
 *
 * @param params a map from key to value of all the template parameters
 * @return the document as an XML string with the template parameters filled
 * in/*from   www.j  a va 2s  .com*/
 * @throws MissingTemplateParameterException if any required parameter is
 * omitted
 * @throws IllegalStateException if this method has previously been called
 * on this object
 */
public String preprocess(Map<String, String> params) {
    HashMap<String, String> paramsCopy = new HashMap<String, String>(params);
    if (preprocessCalled) {
        throw new IllegalStateException("Preprocess can't be called twice for the same object");
    }
    preprocessCalled = true;

    for (Entry<String, Element> entry : nameToValueElement.entrySet()) {
        Element valueElem = entry.getValue();
        boolean isTemplateValue = valueElem.hasAttribute("template");
        if (paramsCopy.containsKey(entry.getKey()) && isTemplateValue) {
            // Modifies the map in place, but that's fine for our use.
            Text valueData = (Text) valueElem.getFirstChild();
            String newValue = paramsCopy.get(entry.getKey());
            if (valueData != null) {
                valueData.setData(newValue);
            } else {
                valueElem.appendChild(doc.createTextNode(newValue));
            }
            // Remove parameter, so we can tell if they gave us extras.
            paramsCopy.remove(entry.getKey());
        } else if (isTemplateValue) {
            String templateAttribute = valueElem.getAttribute("template");
            if ("required".equals(templateAttribute)) {
                throw new MissingTemplateParameterException(
                        "Couldn't find expected parameter " + entry.getKey());
            } else if ("optional".equals(templateAttribute)) {
                // The default value is the one already in the value text, so
                // leave it be. The one exception is if they self-closed the value tag,
                // so go ahead and add a Text child so Configuration doesn't barf.
                if (valueElem.getFirstChild() == null) {
                    valueElem.appendChild(doc.createTextNode(""));
                }
            } else {
                throw new IllegalArgumentException("Value " + templateAttribute + " is not a valid template "
                        + "attribute. Valid possibilities are: \"required\" or \"optional\".");
            }
            // Remove parameter, so we can tell if they gave us extras.
            paramsCopy.remove(entry.getKey());
        } else {
            throw new IllegalArgumentException(
                    "Configuration property " + entry.getKey() + " is not a template property");
        }

        // removeAttribute has no effect if the attributes don't exist
        valueElem.removeAttribute("template");
    }

    if (paramsCopy.size() > 0) {
        // TODO(user): Is there a good way to bubble up all bad parameters?
        throw new UnexpectedTemplateParameterException("Parameter " + paramsCopy.keySet().iterator().next()
                + " wasn't found in the configuration template.");
    }

    return getDocAsXmlString();
}

From source file:edu.lternet.pasta.client.JournalCitationsClient.java

public String citationsOptionsHTML() throws Exception {
    String html = "";

    if (this.uid != null && !this.uid.equals("public")) {
        StringBuilder sb = new StringBuilder("");
        String xmlString = listPrincipalOwnerCitations(this.uid);

        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        try {//ww  w  . j a  v a  2  s.c  om
            DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
            InputStream inputStream = IOUtils.toInputStream(xmlString, "UTF-8");
            Document document = documentBuilder.parse(inputStream);
            Element documentElement = document.getDocumentElement();
            NodeList citationsList = documentElement.getElementsByTagName("journalCitation");
            int nCitations = citationsList.getLength();

            for (int i = 0; i < nCitations; i++) {
                Node journalCitationNode = citationsList.item(i);
                NodeList journalCitationChildren = journalCitationNode.getChildNodes();
                String journalCitationId = "";
                for (int j = 0; j < journalCitationChildren.getLength(); j++) {
                    Node childNode = journalCitationChildren.item(j);
                    if (childNode instanceof Element) {
                        Element journalCitationElement = (Element) childNode;
                        if (journalCitationElement.getTagName().equals("journalCitationId")) {
                            Text text = (Text) journalCitationElement.getFirstChild();
                            if (text != null) {
                                journalCitationId = text.getData().trim();
                            }
                        }
                    }
                }

                sb.append(String.format("<option value='%s'>%s</option>\n", journalCitationId,
                        journalCitationId));
            }

            html = sb.toString();
        } catch (Exception e) {
            logger.error("Exception:\n" + e.getMessage());
            e.printStackTrace();
            throw new PastaEventException(e.getMessage());
        }
    }

    return html;
}

From source file:com.mdt.rtm.Invoker.java

public Element invoke(Param... params) throws ServiceException {
    Element result;/*from w  ww. jav  a  2s  .c o  m*/

    long timeSinceLastInvocation = System.currentTimeMillis() - lastInvocation;
    if (timeSinceLastInvocation < INVOCATION_INTERVAL) {
        // In order not to invoke the RTM service too often
        try {
            Thread.sleep(INVOCATION_INTERVAL - timeSinceLastInvocation);
        } catch (InterruptedException e) {
            throw new ServiceInternalException(
                    "Unexpected interruption while attempting to pause for some time before invoking the RTM service back",
                    e);
        }
    }

    log.debug("Invoker running at " + new Date());

    HttpClient client = new HttpClient();
    if (proxyHostName != null) {
        // Sets an HTTP proxy and the credentials for authentication
        client.getHostConfiguration().setProxy(proxyHostName, proxyPortNumber);
        if (proxyLogin != null) {
            client.getState().setProxyCredentials(AuthScope.ANY,
                    new UsernamePasswordCredentials(proxyLogin, proxyPassword));
        }
    }
    GetMethod method = new GetMethod(serviceBaseUrl + REST_SERVICE_URL_POSTFIX);
    method.setRequestHeader(HttpMethodParams.HTTP_URI_CHARSET, "UTF-8");
    NameValuePair[] pairs = new NameValuePair[params.length + 1];
    int i = 0;
    for (Param param : params) {
        log.debug("  setting " + param.getName() + "=" + param.getValue());
        pairs[i++] = param.toNameValuePair();
    }
    pairs[i++] = new NameValuePair(API_SIG_PARAM, calcApiSig(params));
    method.setQueryString(pairs);

    try {
        URI methodUri;
        try {
            methodUri = method.getURI();
            log.info("Executing the method:" + methodUri);
        } catch (URIException exception) {
            String message = "Cannot determine the URI of the web method";
            log.error(message);
            throw new ServiceInternalException(message, exception);
        }
        int statusCode = client.executeMethod(method);

        if (statusCode != HttpStatus.SC_OK) {
            log.error("Method failed: " + method.getStatusLine());
            throw new ServiceInternalException("method failed: " + method.getStatusLine());
        }

        // THINK: this method is deprecated, but the only way to get the body as a string, without consuming
        // the body input stream: the HttpMethodBase issues a warning but does not let you call the "setResponseStream()" method!
        String responseBodyAsString = method.getResponseBodyAsString();
        log.info("  Invocation response:\r\n" + responseBodyAsString);
        Document responseDoc = builder.parse(method.getResponseBodyAsStream());
        Element wrapperElt = responseDoc.getDocumentElement();
        if (!wrapperElt.getNodeName().equals("rsp")) {
            throw new ServiceInternalException(
                    "unexpected response returned by RTM service: " + responseBodyAsString);
        } else {
            String stat = wrapperElt.getAttribute("stat");
            if (stat.equals("fail")) {
                Node errElt = wrapperElt.getFirstChild();
                while (errElt != null
                        && (errElt.getNodeType() != Node.ELEMENT_NODE || !errElt.getNodeName().equals("err"))) {
                    errElt = errElt.getNextSibling();
                }
                if (errElt == null) {
                    throw new ServiceInternalException(
                            "unexpected response returned by RTM service: " + responseBodyAsString);
                } else {
                    throw new ServiceException(Integer.parseInt(((Element) errElt).getAttribute("code")),
                            ((Element) errElt).getAttribute("msg"));
                }
            } else {
                Node dataElt = wrapperElt.getFirstChild();
                while (dataElt != null && (dataElt.getNodeType() != Node.ELEMENT_NODE
                        || dataElt.getNodeName().equals("transaction") == true)) {
                    try {
                        Node nextSibling = dataElt.getNextSibling();
                        if (nextSibling == null) {
                            break;
                        } else {
                            dataElt = nextSibling;
                        }
                    } catch (IndexOutOfBoundsException exception) {
                        // Some implementation may throw this exception, instead of returning a null sibling
                        break;
                    }
                }
                if (dataElt == null) {
                    throw new ServiceInternalException(
                            "unexpected response returned by RTM service: " + responseBodyAsString);
                } else {
                    result = (Element) dataElt;
                }
            }
        }

    } catch (HttpException e) {
        throw new ServiceInternalException("", e);
    } catch (IOException e) {
        throw new ServiceInternalException("", e);
    } catch (SAXException e) {
        throw new ServiceInternalException("", e);
    } finally {
        // Release the connection.
        method.releaseConnection();
    }

    lastInvocation = System.currentTimeMillis();
    return result;
}