XPathScheme.java 文件源码

public Object load(Property property, final RouteContext context) {
    XPath xpath = XPathHelper.newXPath();
    final BranchService branchService = KEWServiceLocator.getBranchService();
    xpath.setXPathVariableResolver(new XPathVariableResolver() {
        public Object resolveVariable(QName name) {
            LOG.debug("Resolving XPath variable: " + name);
            String value = branchService.getScopedVariableValue(context.getNodeInstance().getBranch(), BranchState.VARIABLE_PREFIX + name.getLocalPart());
            LOG.debug("Resolved XPath variable " + name + " to " + value);
            return value;
        }
    });
    try {
        String docContent = context.getDocument().getDocContent();
        LOG.debug("Executing xpath expression '" + property.locator + "' in doc '" + docContent + "'");
        return xpath.evaluate(property.locator, new InputSource(new StringReader(docContent)), XPathConstants.STRING);
    } catch (XPathExpressionException xpee) {
        throw new RuntimeException("Error evaluating xpath expression '" + property.locator + "'", xpee);
    }
}