Example usage for org.w3c.dom Element getPrefix

Introduction

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

Prototype

public String getPrefix();

Source Link

Document

The namespace prefix of this node, or null if it is unspecified.

Usage

From source file:Utils.java

/**
 * Build a QName from the element name//from   w w  w  .ja  v a 2s  . c o  m
 * @param el
 * @return
 */
public static QName getQName(Element el) {
    if (el == null) {
        return null;
    } else if (el.getPrefix() != null) {
        return new QName(el.getNamespaceURI(), el.getLocalName(), el.getPrefix());
    } else {
        return new QName(el.getNamespaceURI(), el.getLocalName());
    }
}

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From source file:Main.java

/**
 * @param xml/*from ww w .ja  v  a 2 s  .  c o  m*/
 *            The Element whose QName will be returned.
 * @return The QName of the given Element definition.
 */
public static QName getElementQName(final Element xml) {
    final String uri = xml.getNamespaceURI();
    final String prefix = xml.getPrefix();
    final String name = xml.getLocalName();

    //
    // support for DOM Level 1 - no NS concept
    //
    if (name == null)
        return new QName(xml.getNodeName());

    //
    // prefix is not required, but it CANNOT be null
    //
    if (prefix != null && prefix.length() > 0)
        return new QName(uri, name, prefix);

    return new QName(uri, name);
}

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From source file:Main.java

/**
 * Get the namespace prefix of the passed element in a safe way.
 *
 * @param aElement//from  w  w w  . j  a v  a2 s  .co  m
 *        The element to be queried. May be <code>null</code>.
 * @return {@link XMLConstants#DEFAULT_NS_PREFIX} or the provided prefix.
 *         Never <code>null</code>.
 * @since 8.4.1
 */
@Nonnull
public static String getPrefix(@Nullable final Element aElement) {
    final String sPrefix = aElement == null ? null : aElement.getPrefix();
    return sPrefix == null ? XMLConstants.DEFAULT_NS_PREFIX : sPrefix;
}

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From source file:Main.java

public static Element createElement(final Document document, final String qName,
        final Optional<String> namespaceURI) {
    if (namespaceURI.isPresent()) {
        final Element element = document.createElementNS(namespaceURI.get(), qName);
        String name = XMLNS_ATTRIBUTE_KEY;
        if (element.getPrefix() != null) {
            name += ":" + element.getPrefix();
        }//from   w  w  w  .  ja  v  a 2s.  c om
        element.setAttributeNS(XMLNS_URI, name, namespaceURI.get());
        return element;
    }
    return document.createElement(qName);
}

---

From source file:Main.java

/**
 * Obtains the list of child elements with the specified tag name
 * inside the specific namespace.//ww w. j  av a2  s  .c  om
 *
 * @param element the root element.
 * @param namespace the child namespace name.
 * @param tagName the child tag name.
 * @return the child element list.
 */
public static List<Element> getChildElements(final Element element, final String namespace,
        final String tagName) {
    final List<Element> elements = getElementList(element);
    final int numElements = elements.size();
    final List<Element> childElements = new ArrayList<Element>();
    for (int i = 0; i < numElements; i++) {
        final Element childElement = elements.get(i);
        String childTagName = childElement.getTagName();
        final String childPrefix = childElement.getPrefix();
        final String childNamespace = (childPrefix != null ? childElement.lookupNamespaceURI(childPrefix)
                : null);

        if (namespace != null) {
            if (!namespace.equals(childNamespace)) {
                continue;
            } else {
                childTagName = childElement.getLocalName();
            }
        }

        if (!childTagName.equals(tagName)) {
            continue;
        }
        childElements.add(childElement);
    }
    return childElements;
}

---

From source file:Main.java

/**
 * Obtains the first child element with the specified name inside
 * the specified namespace./*from  w  ww  .  ja  v  a2s. c o  m*/
 *
 * @param element the root element.
 * @param namespace the namespace of the child element.
 * @param tagName the child local name.
 * @return the child element.
 */
public static Element getChildElement(final Element element, final String namespace, final String tagName) {
    final NodeList childNodes = element.getChildNodes();
    final int numChildren = childNodes.getLength();

    for (int i = 0; i < numChildren; i++) {
        final Node childNode = childNodes.item(i);
        if (childNode.getNodeType() != Node.ELEMENT_NODE) {
            continue;
        }

        final Element childElement = (Element) childNode;
        String childTagName = childElement.getTagName();
        final String childPrefix = childElement.getPrefix();
        final String childNamespace = (childPrefix != null ? childElement.lookupNamespaceURI(childPrefix)
                : null);

        if (namespace != null) {
            if (!namespace.equals(childNamespace)) {
                continue;
            } else {
                childTagName = childElement.getLocalName();
            }
        }

        if (!childTagName.equals(tagName)) {
            continue;
        }
        return childElement;
    }
    return null;
}

---

From source file:Main.java

protected static String nodeToString(Node node, Set<String> parentPrefixes, String namespaceURI)
        throws Exception {
    StringBuilder b = new StringBuilder();

    if (node == null) {
        return "";
    }/*from  w  w w  .j a v  a2 s  . co m*/

    if (node instanceof Element) {
        Element element = (Element) node;
        b.append("<");
        b.append(element.getNodeName());

        Map<String, String> thisLevelPrefixes = new HashMap();
        if (element.getPrefix() != null && !parentPrefixes.contains(element.getPrefix())) {
            thisLevelPrefixes.put(element.getPrefix(), element.getNamespaceURI());
        }

        if (element.hasAttributes()) {
            NamedNodeMap map = element.getAttributes();
            for (int i = 0; i < map.getLength(); i++) {
                Node attr = map.item(i);
                if (attr.getNodeName().startsWith("xmlns"))
                    continue;
                if (attr.getPrefix() != null && !parentPrefixes.contains(attr.getPrefix())) {
                    thisLevelPrefixes.put(attr.getPrefix(), element.getNamespaceURI());
                }
                b.append(" ");
                b.append(attr.getNodeName());
                b.append("=\"");
                b.append(attr.getNodeValue());
                b.append("\"");
            }
        }

        if (namespaceURI != null && !thisLevelPrefixes.containsValue(namespaceURI)
                && !namespaceURI.equals(element.getParentNode().getNamespaceURI())) {
            b.append(" xmlns=\"").append(namespaceURI).append("\"");
        }

        for (Map.Entry<String, String> entry : thisLevelPrefixes.entrySet()) {
            b.append(" xmlns:").append(entry.getKey()).append("=\"").append(entry.getValue()).append("\"");
            parentPrefixes.add(entry.getKey());
        }

        NodeList children = element.getChildNodes();
        boolean hasOnlyAttributes = true;
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child.getNodeType() != Node.ATTRIBUTE_NODE) {
                hasOnlyAttributes = false;
                break;
            }
        }
        if (!hasOnlyAttributes) {
            b.append(">");
            for (int i = 0; i < children.getLength(); i++) {
                b.append(nodeToString(children.item(i), parentPrefixes, children.item(i).getNamespaceURI()));
            }
            b.append("</");
            b.append(element.getNodeName());
            b.append(">");
        } else {
            b.append("/>");
        }

        for (String thisLevelPrefix : thisLevelPrefixes.keySet()) {
            parentPrefixes.remove(thisLevelPrefix);
        }

    } else if (node.getNodeValue() != null) {
        b.append(encodeText(node.getNodeValue()));
    }

    return b.toString();
}

---

From source file:Main.java

protected static String nodeToString(Node node, Set<String> parentPrefixes, String namespaceURI)
        throws Exception {
    StringBuilder b = new StringBuilder();

    if (node == null) {
        return "";
    }/*  w  ww.java 2 s .c  o m*/

    if (node instanceof Element) {
        Element element = (Element) node;
        b.append("<");
        b.append(element.getNodeName());

        Map<String, String> thisLevelPrefixes = new HashMap();
        if (element.getPrefix() != null && !parentPrefixes.contains(element.getPrefix())) {
            thisLevelPrefixes.put(element.getPrefix(), element.getNamespaceURI());
        }

        if (element.hasAttributes()) {
            NamedNodeMap map = element.getAttributes();
            for (int i = 0; i < map.getLength(); i++) {
                Node attr = map.item(i);
                if (attr.getNodeName().startsWith("xmlns"))
                    continue;
                if (attr.getPrefix() != null && !parentPrefixes.contains(attr.getPrefix())) {
                    thisLevelPrefixes.put(attr.getPrefix(), element.getNamespaceURI());
                }
                b.append(" ");
                b.append(attr.getNodeName());
                b.append("=\"");
                b.append(attr.getNodeValue());
                b.append("\"");
            }
        }

        if (namespaceURI != null && !thisLevelPrefixes.containsValue(namespaceURI)
                && !namespaceURI.equals(element.getParentNode().getNamespaceURI())) {
            b.append(" xmlns=\"").append(namespaceURI).append("\"");
        }

        for (Map.Entry<String, String> entry : thisLevelPrefixes.entrySet()) {
            b.append(" xmlns:").append(entry.getKey()).append("=\"").append(entry.getValue()).append("\"");
            parentPrefixes.add(entry.getKey());
        }

        NodeList children = element.getChildNodes();
        boolean hasOnlyAttributes = true;
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child.getNodeType() != Node.ATTRIBUTE_NODE) {
                hasOnlyAttributes = false;
                break;
            }
        }
        if (!hasOnlyAttributes) {
            b.append(">");
            for (int i = 0; i < children.getLength(); i++) {
                b.append(nodeToString(children.item(i), parentPrefixes, children.item(i).getNamespaceURI()));
            }
            b.append("</");
            b.append(element.getNodeName());
            b.append(">");
        } else {
            b.append("/>");
        }

        for (String thisLevelPrefix : thisLevelPrefixes.keySet()) {
            parentPrefixes.remove(thisLevelPrefix);
        }

    } else if (node.getNodeValue() != null) {
        b.append(encodeText(node.getNodeValue(), node instanceof Attr));
    }

    return b.toString();
}

---

From source file:Main.java

protected static String nodeToString(Node node, Set<String> parentPrefixes, String namespaceURI)
        throws Exception {
    StringBuilder b = new StringBuilder();

    if (node == null) {
        return "";
    }//from w  w  w.j av  a  2  s .c o m

    if (node instanceof Element) {
        Element element = (Element) node;
        b.append("<");
        b.append(element.getNodeName());

        Map<String, String> thisLevelPrefixes = new HashMap();
        if (element.getPrefix() != null && !parentPrefixes.contains(element.getPrefix())) {
            thisLevelPrefixes.put(element.getPrefix(), element.getNamespaceURI());
        }

        if (element.hasAttributes()) {
            NamedNodeMap map = element.getAttributes();
            for (int i = 0; i < map.getLength(); i++) {
                Node attr = map.item(i);
                if (attr.getNodeName().startsWith("xmlns"))
                    continue;
                if (attr.getPrefix() != null && !parentPrefixes.contains(attr.getPrefix())) {
                    thisLevelPrefixes.put(attr.getPrefix(), element.getNamespaceURI());
                }
                b.append(" ");
                b.append(attr.getNodeName());
                b.append("=\"");
                b.append(attr.getNodeValue());
                b.append("\"");
            }
        }

        if (namespaceURI != null && !thisLevelPrefixes.containsValue(namespaceURI)
                && !namespaceURI.equals(element.getParentNode().getNamespaceURI())) {
            b.append(" xmlns=\"").append(namespaceURI).append("\"");
        }

        for (Map.Entry<String, String> entry : thisLevelPrefixes.entrySet()) {
            b.append(" xmlns:").append(entry.getKey()).append("=\"").append(entry.getValue()).append("\"");
            parentPrefixes.add(entry.getKey());
        }

        NodeList children = element.getChildNodes();
        boolean hasOnlyAttributes = true;
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child.getNodeType() != Node.ATTRIBUTE_NODE) {
                hasOnlyAttributes = false;
                break;
            }
        }
        if (!hasOnlyAttributes) {
            b.append(">");
            for (int i = 0; i < children.getLength(); i++) {
                b.append(nodeToString(children.item(i), parentPrefixes, children.item(i).getNamespaceURI()));
            }
            b.append("</");
            b.append(element.getNodeName());
            b.append(">");
        } else {
            b.append("/>");
        }

        for (String thisLevelPrefix : thisLevelPrefixes.keySet()) {
            parentPrefixes.remove(thisLevelPrefix);
        }

    } else if (node.getNodeValue() != null) {

        b.append(encodeText(node.getNodeValue()));
    }

    return b.toString();
}

---

From source file:Main.java

protected static String nodeToString(Node node, Set<String> parentPrefixes, String namespaceURI)
        throws Exception {
    StringBuilder b = new StringBuilder();

    if (node == null) {
        return "";
    }/*from ww  w.  j a  v  a2 s .  c  om*/

    if (node instanceof Element) {
        Element element = (Element) node;
        b.append("<");
        b.append(element.getNodeName());

        Map<String, String> thisLevelPrefixes = new HashMap();
        if (element.getPrefix() != null && !parentPrefixes.contains(element.getPrefix())) {
            thisLevelPrefixes.put(element.getPrefix(), element.getNamespaceURI());
        }

        if (element.hasAttributes()) {
            NamedNodeMap map = element.getAttributes();
            for (int i = 0; i < map.getLength(); i++) {
                Node attr = map.item(i);
                if (attr.getNodeName().startsWith("xmlns"))
                    continue;
                if (attr.getPrefix() != null && !parentPrefixes.contains(attr.getPrefix())) {
                    thisLevelPrefixes.put(attr.getPrefix(), element.getNamespaceURI());
                }
                b.append(" ");
                b.append(attr.getNodeName());
                b.append("=\"");
                b.append(attr.getNodeValue());
                b.append("\"");
            }
        }

        if (namespaceURI != null && !thisLevelPrefixes.containsValue(namespaceURI)
                && !namespaceURI.equals(element.getParentNode().getNamespaceURI())) {
            b.append(" xmlns=\"").append(namespaceURI).append("\"");
        }

        for (Map.Entry<String, String> entry : thisLevelPrefixes.entrySet()) {
            b.append(" xmlns:").append(entry.getKey()).append("=\"").append(entry.getValue()).append("\"");
            parentPrefixes.add(entry.getKey());
        }

        NodeList children = element.getChildNodes();
        boolean hasOnlyAttributes = true;
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if (child.getNodeType() != Node.ATTRIBUTE_NODE) {
                hasOnlyAttributes = false;
                break;
            }
        }
        if (!hasOnlyAttributes) {
            b.append(">");
            for (int i = 0; i < children.getLength(); i++) {
                b.append(nodeToString(children.item(i), parentPrefixes, children.item(i).getNamespaceURI()));
            }
            b.append("</");
            b.append(element.getNodeName());
            b.append(">");
        } else {
            b.append("/>");
        }

        for (String thisLevelPrefix : thisLevelPrefixes.keySet()) {
            parentPrefixes.remove(thisLevelPrefix);
        }

    } else if (node.getNodeValue() != null) {
        b.append(encodeText(node, node.getNodeValue()));
    }

    return b.toString();
}

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