private static void sessionListening(Set<Class<?>> allClass) throws Exception {
Set<Class<?>> sessionListenerList =
ClassUtil.getSubClassList(HttpSessionListener.class, allClass);
if (sessionListenerList.size() == 0) return;
final List<HttpSessionListener> listeners =
new ArrayList<HttpSessionListener>(sessionListenerList.size());
for (Class<?> clazz : sessionListenerList) {
listeners.add((HttpSessionListener) ClassUtil.newInstance(clazz));
}
_threadPoolContainer
.getEventDispatcher()
.addEventListener(
SessionEvent.SESSION_EVENT_NAME,
new IEventHandler<Event>() {
public void doExecute(Event e) throws Exception {
Object[] _session_and_Type = (Object[]) e.getSource();
HttpSessionEvent he = new HttpSessionEvent((HttpSession) _session_and_Type[1]);
for (HttpSessionListener listener : listeners) {
if (((SessionEvent.SessionEventType) _session_and_Type[0])
== SessionEvent.SessionEventType.created) {
listener.sessionCreated(he);
} else {
listener.sessionDestroyed(he);
}
}
}
});
}
private static void addEventListeners(Set<Class<?>> allClass) throws Exception {
String httpTemplate =
new String(
FileUtil.readFile(
FileUtil.getResourceAsStream(
AbstractHttpHandler.class.getPackage().getName().replace(".", "/")
+ "/TemplateHttpHandler.java.template")),
SystemUtil.DEFAULT_CHARSET);
DynamicEngine dynamicEngine = DynamicCompileUtil.getDynamicEngine();
Set<Class<?>> helperClassList = ClassUtil.getSubClassList(AbstractHttpHelper.class, allClass);
Map<String, Object[]> urlPatternList = new HashMap<String, Object[]>();
Set<String> checkSessionUriList = new HashSet<String>();
for (Class<?> clazz : helperClassList) {
try {
AbstractHttpHelper helper = (AbstractHttpHelper) ClassUtil.newInstance(clazz);
Method[] methods = clazz.getDeclaredMethods();
for (Method method : methods) {
String method_str = method.toString();
if (!method_str.startsWith("public") || method_str.contains(" static ")) {
continue;
}
HttpListening e = method.getAnnotation(HttpListening.class);
if (e != null) {
if (!method_str.contains("Response")) {
log.error(
"事件监听器错误:HTTP事件监听函数必须抛出返回org.guyou.web.server.Forward对象",
new IllegalStateException("事件监听器错误"));
System.exit(1);
}
if (!method_str.contains("throws") || !method_str.contains("Exception")) {
log.error("事件监听器错误:HTTP事件监听函数必须抛出Exception", new IllegalStateException("事件监听器错误"));
System.exit(1);
}
if (!e.urlPattern().endsWith(".do")) {
log.error(
"事件名称不合法:<" + e.urlPattern() + ">必须以\".do\"结尾",
new IllegalStateException("事件名称不合法"));
System.exit(1);
}
if (urlPatternList.containsKey(e.urlPattern())) {
Object[] objs = urlPatternList.get(e.urlPattern());
if (objs[0] == helper) {
log.error(
"事件名称重复:<"
+ e.urlPattern()
+ ">已经在当前类"
+ helper.getClass().getName()
+ "."
+ objs[1]
+ "(HttpServletRequest request,HttpServletResponse response,PrintWriter out)方法上监听过了。",
new IllegalStateException("监听重复"));
} else {
log.error(
"事件名称重复:<"
+ e.urlPattern()
+ ">同时在"
+ helper.getClass().getName()
+ "."
+ objs[1]
+ "(HttpServletRequest request,HttpServletResponse response,PrintWriter out)和"
+ clazz.getName()
+ "."
+ method.getName()
+ "(HttpServletRequest request,HttpServletResponse response,PrintWriter out)监听",
new IllegalStateException("监听重复"));
}
System.exit(1);
} else {
urlPatternList.put(e.urlPattern(), new Object[] {helper, method.getName()});
String className =
"HttpHandler_" + e.urlPattern().replace("/", "_").replace(".", "_");
AbstractHttpHandler handler =
(AbstractHttpHandler)
dynamicEngine.javaCodeToObject(
AbstractHttpHandler.class.getPackage().getName() + "." + className,
httpTemplate
.replace("${className}", className)
.replace("${helper}", clazz.getName())
.replace("${function}", method.getName()));
ClassUtil.setFieldValue(handler, "helper", helper);
_threadPoolContainer.getEventDispatcher().addEventListener(e.urlPattern(), handler);
log.error("注册<" + e.urlPattern() + ">监听成功");
if (e.isCheckSession())
checkSessionUriList.add(_servletContext.getContextPath() + e.urlPattern());
}
}
}
} catch (Exception e) {
log.error("初始化[" + clazz.getName() + "]异常!!", e);
System.exit(1);
}
}
_servletContext.setAttribute(ServletContextKeyEnum.CHECK_SESSION_URI_LIST, checkSessionUriList);
urlPatternList.clear();
}