XmlDataContext.java 文件源码

private List<RuleNode> loadXml(String path) throws Exception{
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = documentBuilderFactory.newDocumentBuilder();
    builder.setEntityResolver(new UrlDtdPathResolver());
    Document document = builder.parse(Thread.currentThread().getContextClassLoader().getResourceAsStream(path));

    List<RuleNode> results = new ArrayList<>();

    NodeList rootChildren = document.getDocumentElement().getChildNodes();
    for (int i = 0; i < rootChildren.getLength(); i++) {

        Optional.ofNullable(parseNode(rootChildren.item(i))).ifPresent(node -> results.add(node));

    }

    return results.stream().filter(Objects::nonNull).collect(Collectors.toList());
}