Example usage for javax.servlet ServletRequest removeAttribute

Introduction

In this page you can find the example usage for javax.servlet ServletRequest removeAttribute.

Prototype

public void removeAttribute(String name);

Source Link

Document

Removes an attribute from this request.

Usage

From source file:org.opensolaris.opengrok.web.PageConfig.java

/**
 * Cleanup all allocated resources (if any) from the instance attached to
 * the given request./*from   www.j  a va2s .co  m*/
 *
 * @param sr request to check, cleanup. Ignored if {@code null}.
 * @see PageConfig#get(HttpServletRequest)
 */
public static void cleanup(ServletRequest sr) {
    if (sr == null) {
        return;
    }
    PageConfig cfg = (PageConfig) sr.getAttribute(ATTR_NAME);
    if (cfg == null) {
        return;
    }
    sr.removeAttribute(ATTR_NAME);
    cfg.env = null;
    cfg.req = null;
    if (cfg.eftarReader != null) {
        cfg.eftarReader.close();
    }
    ProjectHelper.cleanup();
}

From source file:org.springframework.security.web.FilterChainProxy.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    boolean clearContext = request.getAttribute(FILTER_APPLIED) == null;
    if (clearContext) {
        try {//from   ww  w  .  j a va2s  . c o m
            request.setAttribute(FILTER_APPLIED, Boolean.TRUE);
            doFilterInternal(request, response, chain);
        } finally {
            SecurityContextHolder.clearContext();
            request.removeAttribute(FILTER_APPLIED);
        }
    } else {
        doFilterInternal(request, response, chain);
    }
}

From source file:org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.java

/**
 * {@inheritDoc}/*from w  ww  .jav a  2s .c o m*/
 * 
 * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse,
 *      javax.servlet.FilterChain)
 */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    ServletRequest filteredRequest = request;
    // This filter works only for HTTP requests, because they are the only ones with a session.
    if (request instanceof HttpServletRequest
            && !Boolean.valueOf((String) request.getAttribute(ATTRIBUTE_APPLIED))) {
        // Get the saved request, if any (returns null if not applicable)
        SavedRequest savedRequest = getSavedRequest((HttpServletRequest) request);
        // Merge the new and the saved request
        filteredRequest = new SavedRequestWrapper((HttpServletRequest) request, savedRequest);
        filteredRequest.setAttribute(ATTRIBUTE_APPLIED, "true");
    }
    // Forward the request
    chain.doFilter(filteredRequest, response);
    // Allow multiple calls to this filter as long as they are not nested.
    filteredRequest.removeAttribute(ATTRIBUTE_APPLIED);
}

From source file:org.xwiki.portlet.controller.DispatchFilter.java

/**
 * {@inheritDoc}//from  w ww .  j  a  va  2  s.c  om
 * 
 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
 */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    if (request instanceof HttpServletRequest
            && !Boolean.valueOf((String) request.getAttribute(ATTRIBUTE_APPLIED))) {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        RequestType requestType = (RequestType) request.getAttribute(DispatchPortlet.ATTRIBUTE_REQUEST_TYPE);
        if (requestType != null) {
            HttpServletResponse httpResponse = (HttpServletResponse) response;
            // Prevent nested calls to this filter.
            request.setAttribute(ATTRIBUTE_APPLIED, "true");
            switch (requestType) {
            case ACTION:
                doAction(httpRequest, httpResponse, chain);
                break;
            case RENDER:
                doRender(httpRequest, httpResponse, chain);
                break;
            case RESOURCE:
                doResource(httpRequest, httpResponse, chain);
                break;
            default:
                // We should never get here.
                break;
            }
            // Allow multiple calls to this filter, as long as they are not nested. We need this because we
            // transform redirects into dispatches and thus a request can be dispatched multiple times, but these
            // dispatches shouldn't be nested.
            request.removeAttribute(ATTRIBUTE_APPLIED);
            return;
        }
    }
    chain.doFilter(request, response);
}