// 拦截Action处理的拦截方法
public String intercept(ActionInvocation invocation) throws Exception {
// 取得请求相关的ActionContext实例
ActionContext ctx = invocation.getInvocationContext();
Map session = ctx.getSession();
// 取出名为user的Session属性
String user = (String) session.get("user");
// 如果没有登录，或者登录所用的用户名不是scott，都返回重新登录
if (user != null && user.equals("crazyit.org")) {
return invocation.invoke();
}
// 没有登录，将服务器提示设置成一个HttpServletRequest属性
ctx.put("tip", "您还没有登录，请输入crazyit.org,leegang登录系统");
// 直接返回login的逻辑视图
return Action.LOGIN;
}
// Convenience functions for sending various upnp service requests
public static ActionInvocation send(
final Device dev, String instanceID, String service, String action, String... args) {
Service svc = dev.findService(ServiceId.valueOf("urn:upnp-org:serviceId:" + service));
final String uuid = getUUID(dev);
if (svc != null) {
Action x = svc.getAction(action);
String name = getFriendlyName(dev);
boolean log = !action.equals("GetPositionInfo");
if (x != null) {
ActionInvocation a = new ActionInvocation(x);
a.setInput("InstanceID", instanceID);
for (int i = 0; i < args.length; i += 2) {
a.setInput(args[i], args[i + 1]);
}
if (log) {
LOGGER.debug("Sending upnp {}.{} {} to {}[{}]", service, action, args, name, instanceID);
}
new ActionCallback(a, upnpService.getControlPoint()) {
@Override
public void success(ActionInvocation invocation) {
rendererMap.mark(uuid, ACTIVE, true);
}
@Override
public void failure(
ActionInvocation invocation, UpnpResponse operation, String defaultMsg) {
LOGGER.debug("Action failed: {}", defaultMsg);
rendererMap.mark(uuid, ACTIVE, false);
}
}.run();
if (log) {
for (ActionArgumentValue arg : a.getOutput()) {
LOGGER.debug(
"Received from {}[{}]: {}={}",
name,
instanceID,
arg.getArgument().getName(),
arg.toString());
}
}
return a;
}
}
return null;
}