Example usage for javax.servlet.http HttpServletRequest getAsyncContext

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getAsyncContext.

Prototype

public AsyncContext getAsyncContext();

Source Link

Document

Gets the AsyncContext that was created or reinitialized by the most recent invocation of #startAsync or #startAsync(ServletRequest,ServletResponse) on this request.

Usage

From source file:org.ireland.jnetty.webapp.RequestDispatcherImpl.java

private void doInclude(HttpServletRequest request, HttpServletResponse response, HttpInvocation invocation)
        throws ServletException, IOException {

    //Wrap the request
    IncludeRequest wrequest = new IncludeRequest(request, response, invocation);

    // If we have already been include previously, then keep using the established
    // original value. Otherwise, this is the first include and we need to establish the values.
    // Note: the established value on the original request for pathInfo and
    // for queryString is allowed to be null, but cannot be null for the other values.
    if (request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI) == null) {
        // ?Include,
        wrequest.setAttribute(RequestDispatcher.INCLUDE_REQUEST_URI, request.getRequestURI());

        wrequest.setAttribute(RequestDispatcher.INCLUDE_CONTEXT_PATH, request.getContextPath());
        wrequest.setAttribute(RequestDispatcher.INCLUDE_SERVLET_PATH, request.getServletPath());
        wrequest.setAttribute(RequestDispatcher.INCLUDE_PATH_INFO, request.getPathInfo());
        wrequest.setAttribute(RequestDispatcher.INCLUDE_QUERY_STRING, request.getQueryString());
    }//from   ww w  . j a  v a2 s . c o m

    boolean isValid = false;

    try {

        invocation.getFilterChainInvocation().service(wrequest, response);

        isValid = true;
    } finally {
        if (request.getAsyncContext() != null) {
            // An async request was started during the forward, don't close the
            // response as it may be written to during the async handling
            return;
        }

        // server/106r, ioc/0310
        if (isValid) {
            finishResponse(response);
        }
    }
}

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From source file:org.ireland.jnetty.webapp.RequestDispatcherImpl.java

private void doError(HttpServletRequest request, HttpServletResponse response, HttpInvocation invocation)
        throws ServletException, IOException {

    // Reset any output that has been buffered, but keep headers/cookies
    response.resetBuffer(); // Servlet-3_1-PFD 9.4

    //Wrap the request
    ErrorRequest wrequest = new ErrorRequest(request, response, invocation);

    boolean isValid = false;

    try {/*  w w  w .  ja  va2s.  c  o  m*/

        invocation.getFilterChainInvocation().service(wrequest, response);

        isValid = true;
    } finally {
        if (request.getAsyncContext() != null) {
            // An async request was started during the forward, don't close the
            // response as it may be written to during the async handling
            return;
        }

        // server/106r, ioc/0310
        if (isValid) {
            finishResponse(response);
        }
    }
}

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