Examples with LSParserFilter org.w3c.dom.ls.LSParserFilter used on opensource projects

Example 1 with LSParserFilter

use of org.w3c.dom.ls.LSParserFilter in project cuba by cuba-platform.

the class XMLConverter method parseCommitRequest.

@Override
public CommitRequest parseCommitRequest(String content) {
    try {
        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);
    }
}