Example usage for javax.servlet.http HttpServletResponse isCommitted

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse isCommitted.

Prototype

public boolean isCommitted();

Source Link

Document

Returns a boolean indicating if the response has been committed.

Usage

From source file:org.soulwing.cas.filter.AbstractLogoutFilter.java

private void doGlobalLogout(HttpServletResponse response) throws IOException {
    if (!response.isCommitted()) {
        SimpleUrlGenerator urlGenerator = new SimpleUrlGenerator(getProtocolConfiguration());
        response.sendRedirect(urlGenerator.getLogoutUrl(getRedirectUrl()));
    } else {/* w ww .  ja v  a2 s  . co  m*/
        // this really shouldn't happen
        log.error("skipping CAS global logout because response is committed");
    }
}

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From source file:org.silverpeas.core.web.util.servlet.GoTo.java

@Override
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    String id = getObjectId(req);

    try {//from w ww.  java 2s . c o m

        String redirect = getDestination(id, req, res);
        if (!StringUtil.isDefined(redirect)) {
            objectNotFound(req, res);
        } else {
            if (!res.isCommitted()) {
                // The response was not previously sent
                if (redirect == null || !redirect.startsWith("http")) {
                    redirect = URLUtil.getApplicationURL() + "/autoRedirect.jsp?" + redirect;
                }
                res.sendRedirect(res.encodeRedirectURL(redirect));
            }
        }
    } catch (AccessForbiddenException afe) {
        accessForbidden(req, res);
    } catch (Exception e) {
        objectNotFound(req, res);
    }
}

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From source file:org.uberfire.ext.security.server.BasicAuthSecurityFilter.java

@Override
public void doFilter(final ServletRequest _request, final ServletResponse _response, final FilterChain chain)
        throws IOException, ServletException {
    final HttpServletRequest request = (HttpServletRequest) _request;
    final HttpServletResponse response = (HttpServletResponse) _response;

    HttpSession session = request.getSession(false);
    final User user = authenticationService.getUser();
    try {/*  w  w w.j a va2s  .co  m*/
        if (user == null) {
            if (authenticate(request)) {
                chain.doFilter(request, response);
                if (response.isCommitted()) {
                    authenticationService.logout();
                }
            } else {
                challengeClient(request, response);
            }
        } else {
            chain.doFilter(request, response);
        }
    } finally {
        // invalidate session only when it did not exists before this request
        // and was created as part of this request
        if (session == null) {
            session = request.getSession(false);
            if (session != null) {
                session.invalidate();
            }
        }
    }
}

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From source file:com.delmar.core.web.filter.ExportDelegate.java

/**
 * Actually writes exported data. Extracts content from the Map stored in request with the
 * <code>TableTag.FILTER_CONTENT_OVERRIDE_BODY</code> key.
 * @param wrapper BufferedResponseWrapper implementation
 * @param response HttpServletResponse/*from   w  w  w. j av  a 2 s . c o m*/
 * @param request ServletRequest
 * @throws java.io.IOException exception thrown by response writer/outputStream
 */
public static void writeExport(HttpServletResponse response, ServletRequest request,
        BufferedResponseWrapper wrapper) throws IOException {

    if (wrapper.isOutRequested()) {
        // data already written
        log.debug("Filter operating in unbuffered mode. Everything done, exiting");
        return;
    }

    // if you reach this point the PARAMETER_EXPORTING has been found, but the special header has never been set in
    // response (this is the signal from table tag that it is going to write exported data)
    log.debug("Filter operating in buffered mode. ");

    Map bean = (Map) request.getAttribute(TableTag.FILTER_CONTENT_OVERRIDE_BODY);

    if (log.isDebugEnabled()) {
        log.debug(bean);
    }

    Object pageContent = bean.get(TableTagParameters.BEAN_BODY);

    if (pageContent == null) {
        if (log.isDebugEnabled()) {
            log.debug("Filter is enabled but exported content has not been found. Maybe an error occurred?");
        }

        response.setContentType(wrapper.getContentType());
        PrintWriter out = response.getWriter();

        out.write(wrapper.getContentAsString());
        out.flush();
        return;
    }

    // clear headers
    if (!response.isCommitted()) {
        response.reset();
    }

    String filename = (String) bean.get(TableTagParameters.BEAN_FILENAME);
    String contentType = (String) bean.get(TableTagParameters.BEAN_CONTENTTYPE);

    if (StringUtils.isNotBlank(filename)) {
        response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
    }

    String characterEncoding = wrapper.getCharacterEncoding();
    String wrappedContentType = wrapper.getContentType();

    if (wrappedContentType != null && wrappedContentType.indexOf("charset") > -1) {
        // charset is already specified (see #921811)
        characterEncoding = StringUtils.substringAfter(wrappedContentType, "charset=");
    }

    if (characterEncoding != null && contentType.indexOf("charset") == -1) //$NON-NLS-1$
    {
        contentType += "; charset=" + characterEncoding; //$NON-NLS-1$
    }

    response.setContentType(contentType);

    if (pageContent instanceof String) {
        // text content
        if (characterEncoding != null) {
            response.setContentLength(((String) pageContent).getBytes(characterEncoding).length);
        } else {
            //FIXME  Reliance on default encoding
            // Found a call to a method which will perform a byte to String (or String to byte) conversion,
            // and will assume that the default platform encoding is suitable.
            // This will cause the application behaviour to vary between platforms.
            // Use an alternative API and specify a charset name or Charset object explicitly.
            response.setContentLength(((String) pageContent).getBytes().length);
        }

        PrintWriter out = response.getWriter();
        out.write((String) pageContent);
        out.flush();
    } else {
        // dealing with binary content
        byte[] content = (byte[]) pageContent;
        response.setContentLength(content.length);
        OutputStream out = response.getOutputStream();
        out.write(content);
        out.flush();
    }
}

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From source file:net.vksn.ecm.spring.tiles3.TilesView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    exposeModelAsRequestAttributes(model, request);

    if (this.exposeJstlAttributes) {
        ServletContext servletContext = getServletContext();
        JstlUtils.exposeLocalizationContext(new RequestContext(request, servletContext));
    }/*w w  w.  j ava  2 s .  c  o m*/

    if (!response.isCommitted()) {
        // Tiles is going to use a forward, but some web containers (e.g.
        // OC4J 10.1.3)
        // do not properly expose the Servlet 2.4 forward request
        // attributes... However,
        // must not do this on Servlet 2.5 or above, mainly for GlassFish
        // compatibility.
        if (this.exposeForwardAttributes) {
            try {
                WebUtils.exposeForwardRequestAttributes(request);
            } catch (Exception ex) {
                // Servlet container rejected to set internal attributes,
                // e.g. on TriFork.
                this.exposeForwardAttributes = false;
            }
        }
    }

    Request tilesRequest = createTilesRequest(request, response);
    this.renderer.render(getUrl(), tilesRequest);
}

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From source file:org.soulwing.cas.filter.AbstractLogoutFilter.java

private void doLogoutRedirect(HttpServletResponse response, String url) throws IOException {
    if (!response.isCommitted()) {
        response.sendRedirect(url);/*from w w w .j a v a2  s . c om*/
    } else {
        // this really shouldn't happen
        log.error("skipping logout redirect because response is committed");
    }
}

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From source file:org.esigate.servlet.ProxyFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException {
    HttpServletRequest httpServletRequest = (HttpServletRequest) request;
    HttpServletResponse httpServletResponse = (HttpServletResponse) response;
    IncomingRequest incomingRequest = requestFactory.create(httpServletRequest, httpServletResponse, chain);

    try {//from  w w  w. j a v a  2 s  .  c  o m
        CloseableHttpResponse driverResponse = DriverFactory.proxy(incomingRequest);
        responseSender.sendResponse(driverResponse, incomingRequest, httpServletResponse);
    } catch (HttpErrorPage e) {
        if (!httpServletResponse.isCommitted()) {
            responseSender.sendResponse(e.getHttpResponse(), incomingRequest, httpServletResponse);
        }
    }
}

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From source file:com.almende.eve.transport.http.DebugServlet.java

@Override
public void doPost(final HttpServletRequest req, final HttpServletResponse resp)
        throws IOException, ServletException {

    if (!handleSession(req, resp)) {
        if (!resp.isCommitted()) {
            resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        }// w w  w.ja  v a 2 s.c om
        resp.flushBuffer();
        return;
    }

    // retrieve the url and the request body
    final String body = StringUtil.streamToString(req.getInputStream());
    final String url = req.getRequestURI();
    final String id = getId(url);
    if (id == null || id.equals("") || id.equals(myUrl.toASCIIString())) {
        resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Couldn't parse URL, missing 'id'");
        resp.flushBuffer();
        return;
    }

    String sender = req.getHeader("X-Eve-SenderUrl");
    if (sender == null || sender.equals("")) {
        sender = "web://" + req.getRemoteUser() + "@" + req.getRemoteAddr();
    }
    URI senderUrl = null;
    try {
        senderUrl = new URI(sender);
    } catch (final URISyntaxException e) {
        LOG.log(Level.WARNING, "Couldn't parse senderUrl:" + sender, e);
    }
    final HttpTransport transport = HttpService.get(myUrl, id);
    if (transport != null) {
        try {
            final String response = transport.receive(body, senderUrl);
            // TODO: It doesn't need to be json, should we handle mime-types
            // better?
            resp.addHeader("Content-Type", "application/json");
            resp.getWriter().println(response);
            resp.getWriter().close();
        } catch (final IOException e) {
            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                    "Receiver raised exception:" + e.getMessage());
        }
    } else {
        resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Couldn't load transport");
    }
    resp.flushBuffer();
}

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

/**
 * This method sets the dispatcher type of the given request to DispatcherType.REQUEST.
 * /*from  w w w  .j a v  a 2  s  . c  om*/
 * ,DispatcherType.REQUEST?.
 * 
 * @param request
 * @param response
 * @throws ServletException
 * @throws IOException
 */
public void dispatch(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // jsp/15m8
    if (response.isCommitted())
        throw new IllegalStateException("dispatch() not allowed after buffer has committed.");

    // build invocation,if not exist
    if (_dispatchInvocation == null) {
        _dispatchInvocation = buildDispatchInvocation(_rawContextURI);
    }

    doDispatch(request, response, _dispatchInvocation);
}

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From source file:org.b3log.latke.servlet.renderer.freemarker.AbstractFreeMarkerRenderer.java

/**
 * Processes the specified FreeMarker template with the specified request, 
 * data model and response. //from   w w w .j a  va 2 s  .  c o m
 * 
 * <p>
 * Puts the page response contents into cache with the key getting from 
 * request attribute specified by <i>page cache key</i>.
 * </p>
 * 
 * <p>
 *   <b>Note</b>: This method will write page content to the writer of the
 *   specified response without flush/close it.
 * </p>
 *
 * @param html the specified HTML content
 * @param request the specified request
 * @param response the specified response
 * @throws Exception exception
 */
@SuppressWarnings("unchecked")
protected void doRender(final String html, final HttpServletRequest request, final HttpServletResponse response)
        throws Exception {
    PrintWriter writer;
    try {
        writer = response.getWriter();
    } catch (final Exception e) {
        writer = new PrintWriter(response.getOutputStream());
    }

    if (response.isCommitted()) { // response has been sent redirect
        writer.flush();
        writer.close();

        return;
    }

    writer.write(html);
    writer.flush();
    writer.close();
}

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