//trim empay and '/'
String namespace = ns == null ? PATH_SEPARATOR + "" : PATH_SEPARATOR + StringUtil.trim(ns.name(), PATH_SEPARATOR);
String path = null;
//not nullable Action
Action action = method.getAnnotation(Action.class);
//Action名称可能为空字符串
String aname = action.name().trim();
if ("".equals(aname)) {
//Action名称为空字符串时取其方法的名称（区分大小写）
aname = method.getName();
//if namespace is '/' or not
path = namespace.length() == 1 ? PATH_SEPARATOR + aname : namespace + PATH_SEPARATOR + aname;
} else {
//action's name can't be null by annotation
String name = StringUtil.trim(aname, PATH_SEPARATOR);
//if action's name is trim as empty
if (name.isEmpty()) {
path = namespace;
} else if (PATH_SEPARATOR == aname.charAt(0)) {
path = PATH_SEPARATOR + name;
} else {
//if namespace is '/' or not
path = namespace.length() == 1 ? PATH_SEPARATOR + name : namespace + PATH_SEPARATOR + name;
}
}
//包含特别属性注入的Action需重新生成对象
if (obj != null && Injector.actionInjection.containsKey(path)) {
obj = objectFactory.newInstance(obj.getClass());
Injector.injectAction(path, obj);
}
//Action中不记录路径的后缀名称
ActionProxy ap = new ActionProxy(this, namespace, path, action, method, obj);
//interceptorStack
String stackName = action.interceptorStack().trim();
//not not nullable action's interceptors
String[] interceptorNames = action.interceptors();
List<InterceptorProxy> inters = new ArrayList<InterceptorProxy>();
//action interceptors
if (interceptorNames.length != 0) {
////action interceptorStack
if (StringUtil.isNotNull(stackName)) {
addActionInterceptors(inters, stackName, ap);
}
//action中申明的interceptors
for (String name : action.interceptors()) {
InterceptorProxy ip = interceptors.get(name);
if (ip == null) {
LOG.warn("No such Interceptor [" + name + "] defined in : " + ap.getMethodInfo());
} else {
inters.add(ip);
}
}
} //action interceptorStack
else if (StringUtil.isNotNull(stackName)) {
addActionInterceptors(inters, stackName, ap);
} else {
//是否已设置action的拦截器集合
boolean setInterceptors = false;
//namespace interceptorStack & interceptors
if (ns != null) {
//namespace interceptorStack
if (StringUtil.isNotNull(stackName = ns.interceptorStack().trim())) {
setInterceptors = true;
addActionInterceptors(inters, stackName, ap);
}
//namespace interceptors
if (ns.interceptors().length != 0) {
setInterceptors = true;
for (String name : ns.interceptors()) {
InterceptorProxy ip = interceptors.get(name);
if (ip == null) {
LOG.warn("No such Interceptor [" + name + "] defined in : " + ap.getMethodInfo());
} else {
inters.add(ip);
}
}
}
}
//defaultInterceptorStack
if (!setInterceptors) {
if (StringUtil.isNotNull(stackName = defaultInterceptorStack)) {
addActionInterceptors(inters, stackName, ap);
}
}
}
//trim
((ArrayList) inters).trimToSize();
ap.setInterceptors(inters);
//set results
Result[] rs = action.results();
Map<String, Result> res = new HashMap<String, Result>(rs.length);
for (Result r : rs) {
res.put(r.name(), r);
}
ap.setResults(res);