Example usage for org.w3c.dom DocumentFragment hasChildNodes

Introduction

In this page you can find the example usage for org.w3c.dom DocumentFragment hasChildNodes.

Prototype

public boolean hasChildNodes();

Source Link

Document

Returns whether this node has any children.

Usage

From source file:org.apache.nutch.parse.html.HtmlParser.java

private DocumentFragment parseNeko(InputSource input) throws Exception {
    DOMFragmentParser parser = new DOMFragmentParser();
    try {/*w ww .j  a v  a  2 s.  com*/
        parser.setFeature("http://cyberneko.org/html/features/augmentations", true);
        parser.setProperty("http://cyberneko.org/html/properties/default-encoding", defaultCharEncoding);
        parser.setFeature("http://cyberneko.org/html/features/scanner/ignore-specified-charset", true);
        parser.setFeature("http://cyberneko.org/html/features/balance-tags/ignore-outside-content", false);
        parser.setFeature("http://cyberneko.org/html/features/balance-tags/document-fragment", true);
        parser.setFeature("http://cyberneko.org/html/features/report-errors", LOG.isTraceEnabled());
    } catch (SAXException e) {
    }
    // convert Document to DocumentFragment
    HTMLDocumentImpl doc = new HTMLDocumentImpl();
    doc.setErrorChecking(false);
    DocumentFragment res = doc.createDocumentFragment();
    DocumentFragment frag = doc.createDocumentFragment();
    parser.parse(input, frag);
    res.appendChild(frag);

    try {
        while (true) {
            frag = doc.createDocumentFragment();
            parser.parse(input, frag);
            if (!frag.hasChildNodes())
                break;
            if (LOG.isInfoEnabled()) {
                LOG.info(" - new frag, " + frag.getChildNodes().getLength() + " nodes.");
            }
            res.appendChild(frag);
        }
    } catch (Exception x) {
        x.printStackTrace(LogUtil.getWarnStream(LOG));
    }
    ;
    return res;
}

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From source file:org.apache.nutch.store.readable.StoreReadable.java

private DocumentFragment parseNeko(InputSource input) throws Exception {
    System.out.println("[STORE-READABLE]----------------------------------------------------parseNeko");
    DOMFragmentParser parser = new DOMFragmentParser();
    try {/*from  w ww  . ja v  a 2 s  .  com*/
        parser.setFeature("http://cyberneko.org/html/features/scanner/allow-selfclosing-iframe", true);
        parser.setFeature("http://cyberneko.org/html/features/augmentations", true);
        parser.setProperty("http://cyberneko.org/html/properties/default-encoding", defaultCharEncoding);
        parser.setFeature("http://cyberneko.org/html/features/scanner/ignore-specified-charset", true);
        parser.setFeature("http://cyberneko.org/html/features/balance-tags/ignore-outside-content", false);
        parser.setFeature("http://cyberneko.org/html/features/balance-tags/document-fragment", true);
        parser.setFeature("http://cyberneko.org/html/features/report-errors", LOG.isTraceEnabled());
    } catch (SAXException e) {
    }
    // convert Document to DocumentFragment
    HTMLDocumentImpl doc = new HTMLDocumentImpl();
    doc.setErrorChecking(false);
    DocumentFragment res = doc.createDocumentFragment();
    DocumentFragment frag = doc.createDocumentFragment();
    parser.parse(input, frag);
    res.appendChild(frag);

    try {
        while (true) {
            frag = doc.createDocumentFragment();
            parser.parse(input, frag);
            if (!frag.hasChildNodes())
                break;
            if (LOG.isInfoEnabled()) {
                LOG.info(" - new frag, " + frag.getChildNodes().getLength() + " nodes.");
            }
            res.appendChild(frag);
        }
    } catch (Exception x) {
        LOG.error("Failed with the following Exception: ", x);
    }
    ;
    return res;
}

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From source file:org.dita.dost.writer.ConrefPushParser.java

/**
 * The function is to judge if the pushed content type march the type of content being pushed/replaced
 * @param targetClassAttribute the class attribute of target element which is being pushed
 * @param content pushedContent/*  w  w  w  .j a  va2s. c  o  m*/
 * @return boolean: if type match, return true, else return false
 */
private boolean isPushedTypeMatch(final DitaClass targetClassAttribute, final DocumentFragment content) {
    DitaClass clazz = null;

    if (content.hasChildNodes()) {
        final NodeList nodeList = content.getChildNodes();
        for (int i = 0; i < nodeList.getLength(); i++) {
            final Node node = nodeList.item(i);
            if (node.getNodeType() == Node.ELEMENT_NODE) {
                final Element elem = (Element) node;
                clazz = new DitaClass(elem.getAttribute(ATTRIBUTE_NAME_CLASS));
                break;
                // get type of the target element
            }
        }
    }

    return targetClassAttribute.matches(clazz);
}

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From source file:org.dita.dost.writer.ConrefPushParser.java

/**
 * // w  w w.j  a v a 2s  .  co  m
 * @param targetClassAttribute targetClassAttribute
 * @param content string
 * @return string
 */
private DocumentFragment replaceElementName(final DitaClass targetClassAttribute,
        final DocumentFragment content) {
    try {
        if (content.hasChildNodes()) {
            final NodeList nodeList = content.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node node = nodeList.item(i);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    final Element elem = (Element) node;
                    final DitaClass clazz = DitaClass.getInstance(elem);
                    // get type of the target element
                    final String type = targetClassAttribute.toString()
                            .substring(1, targetClassAttribute.toString().indexOf("/")).trim();
                    if (!clazz.equals(targetClassAttribute) && targetClassAttribute.matches(clazz)) {
                        // Specializing the pushing content is not handled here
                        // but we can catch such a situation to emit a warning by comparing the class values.
                        final String targetElementName = targetClassAttribute.toString()
                                .substring(targetClassAttribute.toString().indexOf("/") + 1).trim();
                        if (elem.getAttributeNode(ATTRIBUTE_NAME_CONREF) != null) {
                            hasConref = true;
                        }
                        if (elem.getAttributeNode(ATTRIBUTE_NAME_KEYREF) != null) {
                            hasKeyref = true;
                        }
                        elem.getOwnerDocument().renameNode(elem, elem.getNamespaceURI(), targetElementName);
                        // process the child nodes of the current node
                        final NodeList nList = elem.getChildNodes();
                        for (int j = 0; j < nList.getLength(); j++) {
                            final Node subNode = nList.item(j);
                            if (subNode.getNodeType() == Node.ELEMENT_NODE) {
                                //replace the subElement Name
                                replaceSubElementName(type, (Element) subNode);
                            }
                        }
                    } else {
                        replaceSubElementName(STRING_BLANK, elem);
                    }
                }
            }
        }
    } catch (final Exception e) {
        e.printStackTrace();
    }
    return content;
}

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