public FilterConfBean parseConfig(String filterConfFileName) throws Exception {
// 载入filter配置文件
InputStream is = loadFile(filterConfFileName);
if (is == null) {
return null;
}
// byte[] data = new byte[1024];
// int index = is.read(data);
// System.out.println(new String(data));
FilterConfBean filterConfBean = new FilterConfBean();
DocumentBuilderFactory fac = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = fac.newDocumentBuilder();
Document doc = builder.parse(is);
NodeList nodeList = doc.getElementsByTagName(FilterConfElementEnum.ELEMENT_CHAIN.getValue());
Map<String, List<FilterDescBean>> chainMap = new HashMap<String, List<FilterDescBean>>();
for (int i = 0; i < nodeList.getLength(); i++) {
Element chainElement = (Element) nodeList.item(i);
List<FilterDescBean> chain = parseChain(chainElement);
chainMap.put(
chainElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTRBUTE_NAME.getValue()), chain);
}
nodeList = doc.getElementsByTagName(FilterConfElementEnum.ELEMENT_EXTENTION.getValue());
for (int i = 0; i < nodeList.getLength(); i++) {
if (nodeList.item(i) instanceof Element
&& ((Element) nodeList.item(i)).getAttribute("value") != null
&& ((Element) nodeList.item(i)).getAttribute("value").equalsIgnoreCase("true")) {
filterConfBean.setExtension(true);
}
}
filterConfBean.setChainMap(chainMap);
return filterConfBean;
}
private FilterDescBean parseFilter(Element filterElement) {
FilterDescBean filterDesc = new FilterDescBean();
String v = filterElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTR_FACTORY.getValue());
if (v != null && v.trim().length() > 0) filterDesc.setFactoryClass(v.trim());
v = filterElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTR_IMPL_CLASS.getValue());
if (v != null && v.trim().length() > 0) filterDesc.setImplClass(v.trim());
v = filterElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTR_INTERFACE.getValue());
if (v != null && v.trim().length() > 0) filterDesc.setIntfClass(v);
v = filterElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTR_METHOD.getValue());
if (v != null && v.trim().length() > 0) filterDesc.setMethodName(v);
v = filterElement.getAttribute(FilterConfElementEnum.ELEMENT_ATTR_EXCLUSION.getValue());
if (v != null && v.trim().length() > 0) filterDesc.setExclusion(v);
NodeList params = filterElement.getChildNodes();
for (int i = 0; i < params.getLength(); i++) {
Node param = params.item(i);
if (param instanceof Element) {
filterDesc.setAttribute(
((Element) param).getAttribute(FilterConfElementEnum.ELEMENT_ATTRBUTE_NAME.getValue()),
((Element) param).getTextContent().trim());
}
}
return filterDesc;
}
