How to use

getWrappedWebContext

method

in

org.tinygroup.weblayer.WebContext

/**
 * 在指定的request context及其级联的request context中找到一个指定类型的request context。
 *
 * @param webContext          要搜索的request context
 * @param webContextInterface 要查找的类
 * @return <code>WebContext</code>对象，如果没找到，则返回<code>null</code>
 */
public static <R extends WebContext> R findWebContext(WebContext webContext, Class<R> webContextInterface) {
  do {
    if (webContextInterface.isInstance(webContext)) {
      break;
    }
    webContext = webContext.getWrappedWebContext();
  } while (webContext != null);
  return webContextInterface.cast(webContext);
}

/**
 * 在指定的request context及其级联的request context中找到一个指定类型的request context。
 *
 * @param webContext          要搜索的request context
 * @param webContextInterface 要查找的类
 * @return <code>WebContext</code>对象，如果没找到，则返回<code>null</code>
 */
public static <R extends WebContext> R findWebContext(WebContext webContext, Class<R> webContextInterface) {
  do {
    if (webContextInterface.isInstance(webContext)) {
      break;
    }
    webContext = webContext.getWrappedWebContext();
  } while (webContext != null);
  return webContextInterface.cast(webContext);
}

protected <T> T getFromWrapperContext(String name, WebContext webContext) {
  T result = getFromSubContext(name, webContext);
  if (result != null) {
    return result;
  }
  if (webContext.getWrappedWebContext() != null) {
    result = getFromWrapperContext(name,
        webContext.getWrappedWebContext());
    if (result != null) {
      return result;
    }
  }
  return null;
}

protected boolean existFromWrapperContext(String name, WebContext webContext) {
  boolean exist = existFromSubContext(name, webContext);
  if (exist) {
    return true;
  }
  if (webContext.getWrappedWebContext() != null) {
    exist = existFromWrapperContext(name,
        webContext.getWrappedWebContext());
    if (exist) {
      return true;
    }
  }
  return false;
}

/**
 * 判断请求是否已经结束。如果请求被重定向了，则表示请求已经结束。
 *
 * @param webContext
 * @return
 */
private boolean isRequestFinished(int filterSize, WebContext webContext) {
  WebContext wrapContext = webContext;
  for (int i = 0; i < filterSize; i++) {
    if (wrapContext != null) {
      if (wrapContext.isRequestFinished()) {
        return true;
      }
      wrapContext = wrapContext.getWrappedWebContext();
    }
  }
  return false;
}

protected <T> T getFromWrapperContext(String name, WebContext webContext) {
  T result = (T) getFromSubContext(name, webContext);
  if (!ObjectUtil.isEmptyObject(result))
    return result;
  if (webContext.getWrappedWebContext() != null) {
    result = (T) getFromWrapperContext(name, webContext.getWrappedWebContext());
    if (!ObjectUtil.isEmptyObject(result)) {
      return result;
    }
  }
  return null;
}

/**
 * 头部提交，保证内容只提交一次
 *
 * @param wrapperedContext
 */
public void commitHeaders(WebContext wrapperedContext) {
  CommitMonitor monitor = getCommitMonitor(wrapperedContext);
  synchronized (monitor) {
    if (!monitor.isHeadersCommitted()) {
      monitor.setHeadersCommitted(true);
      for (WebContext rc = wrapperedContext; rc != null; rc = rc
          .getWrappedWebContext()) {
        if (rc instanceof TwoPhaseCommitWebContext) {
          TwoPhaseCommitWebContext tpc = (TwoPhaseCommitWebContext) rc;
          logger.logMessage(LogLevel.TRACE,
              "Committing headers: {}", tpc.getClass()
                  .getSimpleName());
          tpc.commitHeaders();
        }
      }
    }
  }
}

/**
 * 
 * 头部提交，保证内容只提交一次
 * 
 * @param wrapperedContext
 */
public void commitHeaders(WebContext wrapperedContext) {
  CommitMonitor monitor = getCommitMonitor(wrapperedContext);
  synchronized (monitor) {
    if (!monitor.isHeadersCommitted()) {
      monitor.setHeadersCommitted(true);
      for (WebContext rc = wrapperedContext; rc != null; rc = rc
          .getWrappedWebContext()) {
        if (rc instanceof TwoPhaseCommitWebContext) {
          TwoPhaseCommitWebContext tpc = (TwoPhaseCommitWebContext) rc;
          logger.logMessage(LogLevel.TRACE,
              "Committing headers: {}", tpc.getClass()
                  .getSimpleName());
          tpc.commitHeaders();
        }
      }
    }
  }
}

wrapperedContext = wrapperedContext.getWrappedWebContext();

wrapperedContext = wrapperedContext.getWrappedWebContext();