Example usage for org.w3c.dom.ls LSParserFilter LSParserFilter

Introduction

In this page you can find the example usage for org.w3c.dom.ls LSParserFilter LSParserFilter.

Prototype

LSParserFilter

Source Link

Usage

From source file:com.haulmont.cuba.restapi.XMLConverter.java

@Override
public CommitRequest parseCommitRequest(String content) {
    try {/*from   w ww .  j a v a  2 s  .  c o m*/
        DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
        DOMImplementationLS lsImpl = (DOMImplementationLS) registry.getDOMImplementation("LS");
        LSParser requestConfigParser = lsImpl.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null);

        // Set options on the parser
        DOMConfiguration config = requestConfigParser.getDomConfig();
        config.setParameter("validate", Boolean.TRUE);
        config.setParameter("element-content-whitespace", Boolean.FALSE);
        config.setParameter("comments", Boolean.FALSE);
        requestConfigParser.setFilter(new LSParserFilter() {
            @Override
            public short startElement(Element elementArg) {
                return LSParserFilter.FILTER_ACCEPT;
            }

            @Override
            public short acceptNode(Node nodeArg) {
                return StringUtils.isBlank(nodeArg.getTextContent()) ? LSParserFilter.FILTER_REJECT
                        : LSParserFilter.FILTER_ACCEPT;
            }

            @Override
            public int getWhatToShow() {
                return NodeFilter.SHOW_TEXT;
            }
        });
        LSInput lsInput = lsImpl.createLSInput();
        lsInput.setStringData(content);
        Document commitRequestDoc = requestConfigParser.parse(lsInput);
        Node rootNode = commitRequestDoc.getFirstChild();
        if (!"CommitRequest".equals(rootNode.getNodeName()))
            throw new IllegalArgumentException("Not a CommitRequest xml passed: " + rootNode.getNodeName());

        CommitRequest result = new CommitRequest();

        NodeList children = rootNode.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            String childNodeName = child.getNodeName();
            if ("commitInstances".equals(childNodeName)) {
                NodeList entitiesNodeList = child.getChildNodes();

                Set<String> commitIds = new HashSet<>(entitiesNodeList.getLength());
                for (int j = 0; j < entitiesNodeList.getLength(); j++) {
                    Node idNode = entitiesNodeList.item(j).getAttributes().getNamedItem("id");
                    if (idNode == null)
                        continue;

                    String id = idNode.getTextContent();
                    if (id.startsWith("NEW-"))
                        id = id.substring(id.indexOf('-') + 1);
                    commitIds.add(id);
                }

                result.setCommitIds(commitIds);
                result.setCommitInstances(parseNodeList(result, entitiesNodeList));
            } else if ("removeInstances".equals(childNodeName)) {
                NodeList entitiesNodeList = child.getChildNodes();

                List removeInstances = parseNodeList(result, entitiesNodeList);
                result.setRemoveInstances(removeInstances);
            } else if ("softDeletion".equals(childNodeName)) {
                result.setSoftDeletion(Boolean.parseBoolean(child.getTextContent()));
            }
        }
        return result;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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