List of usage examples for javax.servlet AsyncContext complete
public void complete();
From source file:org.ireland.jnetty.webapp.ErrorPageManager.java
public void sendServletErrorImpl(Throwable e, ServletRequest req, ServletResponse res) throws IOException { HttpServletResponse response = (HttpServletResponse) res; HttpServletRequest request = (HttpServletRequest) req; Throwable rootExn = e;/*from w w w . ja v a2s.co m*/ Throwable errorPageExn = null; LineMap lineMap = null; try { response.reset(); } catch (IllegalStateException e1) { } if (req.isAsyncStarted()) { AsyncContext async = req.getAsyncContext(); if (async != null) async.complete(); } if (response instanceof HttpServletResponseImpl) { HttpServletResponseImpl resFacade = (HttpServletResponseImpl) response; resFacade.killCache(); resFacade.setNoCache(true); } if (rootExn instanceof ClientDisconnectException) throw (ClientDisconnectException) rootExn; String location = null; String title = "500 Servlet Exception"; boolean isBadRequest = false; boolean doStackTrace = true; boolean isCompileException = false; boolean isServletException = false; Throwable compileException = null; String lineMessage = null; boolean lookupErrorPage = true; while (true) { if (rootExn instanceof LineMapException) lineMap = ((LineMapException) rootExn).getLineMap(); if (lookupErrorPage) { errorPageExn = rootExn; } if (rootExn instanceof DisplayableException) { doStackTrace = false; isCompileException = true; if (compileException == null) compileException = rootExn; } else if (rootExn instanceof CompileException) { doStackTrace = false; isCompileException = true; if (compileException == null) // ! isLineCompileException) compileException = rootExn; } else if (rootExn instanceof LineException) { if (lineMessage == null) lineMessage = rootExn.getMessage(); } if (rootExn instanceof BadRequestException) { isBadRequest = true; } if (rootExn instanceof OutOfMemoryError) { String msg = "TcpSocketLink OutOfMemory"; ShutdownSystem.shutdownOutOfMemory(msg); } if (location != null || !lookupErrorPage) { } else if (rootExn instanceof LineMapException && rootExn instanceof ServletException && !(rootExn instanceof LineCompileException) && rootExn.getCause() != null) { // hack to deal with JSP wrapping } else if (!isServletException) { // SRV.9.9.2 Servlet 2.4 // location = getErrorPage(rootExn, ServletException.class); location = getErrorPage(rootExn); isServletException = true; } else { location = getErrorPage(rootExn); lookupErrorPage = false; } if (location != null) lookupErrorPage = false; if (isBadRequest) break; Throwable cause = null; if (rootExn instanceof ServletException && !(rootExn instanceof LineCompileException)) cause = ((ServletException) rootExn).getRootCause(); else { lookupErrorPage = false; cause = rootExn.getCause(); } if (cause != null) rootExn = cause; else { break; } } if (location == null && lookupErrorPage) { location = getErrorPage(rootExn); } if (location == null) location = getErrorPage(500); if (isBadRequest) { // server/05a0, server/0532 if (rootExn instanceof CompileException) title = rootExn.getMessage(); else title = String.valueOf(rootExn); doStackTrace = false; isBadRequest = true; if (request instanceof CauchoRequest) ((CauchoRequest) request).killKeepalive("bad request: " + rootExn); response.resetBuffer(); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); /* * if (location == null) log.warn(e.toString()); */ } else if (rootExn instanceof UnavailableException) { UnavailableException unAvail = (UnavailableException) rootExn; if (unAvail.isPermanent()) { response.setStatus(HttpServletResponse.SC_NOT_FOUND); title = "404 Not Found"; if (location == null) location = getErrorPage(HttpServletResponse.SC_NOT_FOUND); } else { response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE); title = "503 Unavailable"; if (unAvail.getUnavailableSeconds() > 0) response.setIntHeader("Retry-After", unAvail.getUnavailableSeconds()); if (location == null) location = getErrorPage(HttpServletResponse.SC_SERVICE_UNAVAILABLE); } } else { response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } if (location == null) location = _defaultLocation; if (log.isTraceEnabled()) log.trace(e.toString(), e); else if (isCompileException) { if (isBadRequest) log.trace(BadRequestException.class.getSimpleName() + ": " + compileException.getMessage()); else log.trace(compileException.getMessage()); } else if (!doStackTrace) log.trace(rootExn.toString()); else log.trace(e.toString(), e); if (location != null) { if (errorPageExn == null) errorPageExn = rootExn; request.setAttribute(JSP_EXCEPTION, errorPageExn); request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, errorPageExn); request.setAttribute(RequestDispatcher.ERROR_EXCEPTION_TYPE, errorPageExn.getClass()); if (request instanceof HttpServletRequest) request.setAttribute(RequestDispatcher.ERROR_REQUEST_URI, ((HttpServletRequest) request).getRequestURI()); String servletName = getServletName(request); if (servletName != null) request.setAttribute(RequestDispatcher.ERROR_SERVLET_NAME, servletName); request.setAttribute(RequestDispatcher.ERROR_STATUS_CODE, new Integer(500)); request.setAttribute(RequestDispatcher.ERROR_MESSAGE, errorPageExn.getMessage()); try { RequestDispatcher disp = null; // can't use filters because of error pages due to filters // or security. WebApp webApp = getWebApp(); if (webApp != null) disp = webApp.getRequestDispatcher(location); else if (_host != null) disp = _host.getWebAppContainer().getRequestDispatcher(location); if (disp != null) { ((RequestDispatcherImpl) disp).error(request, response); return; } } catch (Throwable e1) { log.info(e1.toString(), e1); rootExn = e1; } } response.setContentType("text/html"); String encoding = CharacterEncoding.getLocalEncoding(); if (encoding != null) response.setCharacterEncoding(encoding); else { Locale locale = Locale.getDefault(); if (!"ISO-8859-1".equals(Encoding.getMimeName(locale))) response.setLocale(Locale.getDefault()); else response.setCharacterEncoding("utf-8"); } PrintWriter out; try { out = response.getWriter(); } catch (IllegalStateException e1) { log.trace(e1.toString(), e1); out = new PrintWriter(new OutputStreamWriter(response.getOutputStream())); } if (isDevelopmentModeErrorPage()) { out.println("<html>"); if (!response.isCommitted()) out.println("<head><title>" + escapeHtml(title) + "</title></head>"); out.println("<body>"); out.println("<h1>" + escapeHtml(title) + "</h1>"); out.println("<code><pre>"); if (debug && !CurrentTime.isTest()) doStackTrace = true; if (doStackTrace) { out.println("<script language='javascript' type='text/javascript'>"); out.println("function show() { document.getElementById('trace').style.display = ''; }"); out.println("</script>"); out.print("<a style=\"text-decoration\" href=\"javascript:show();\">[show]</a> "); } if (compileException instanceof DisplayableException) { // ioc/0000 // XXX: dispExn.print doesn't normalize user.name // dispExn.print(out); out.println(escapeHtml(compileException.getMessage())); } else if (compileException != null) out.println(escapeHtml(compileException.getMessage())); else out.println(escapeHtml(rootExn.toString())); if (doStackTrace) { out.println("<span id=\"trace\" style=\"display:none\">"); printStackTrace(out, lineMessage, e, rootExn, lineMap); out.println("</span>"); } /* * if (doStackTrace || debug) { printStackTrace(out, lineMessage, e, rootExn, lineMap); } */ out.println("</pre></code>"); printVersion(out); out.println("</body></html>"); } else { // non-development mode out.println("<html>"); out.println("<title>Server Error</title>"); out.println("<body>"); out.println("<h1>Server Error</h1>"); out.println("<p>The server is temporarily unavailable due to an"); out.println("internal error. Please notify the system administrator"); out.println("of this problem.</p>"); out.println("<pre><code>"); out.println("Date: " + QDate.formatISO8601(CurrentTime.getCurrentTime())); out.println("</code></pre>"); printVersion(out); out.println("</body></html>"); } String userAgent = request.getHeader("User-Agent"); if (userAgent != null && userAgent.indexOf("MSIE") >= 0) { out.print(MSIE_PADDING); } out.close(); }
From source file:org.siphon.d2js.DispatchServlet.java
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); request.setAttribute("org.apache.catalina.ASYNC_SUPPORTED", true); AsyncContext asyncContext = request.startAsync(request, response); D2jsRunner d2jsRunner = this.getD2jsRunner(); String method = StringUtils.defaultIfEmpty(request.getParameter("_m"), "fetch"); try {// w ww . j av a 2 s . c o m d2jsRunner.run((HttpServletRequest) asyncContext.getRequest(), (HttpServletResponse) asyncContext.getResponse(), method); } finally { asyncContext.complete(); } }
From source file:org.siphon.d2js.DispatchServlet.java
@Override protected void doDelete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); request.setAttribute("org.apache.catalina.ASYNC_SUPPORTED", true); AsyncContext asyncContext = request.startAsync(request, response); D2jsRunner d2jsRunner = this.getD2jsRunner(); try {//from w w w . j ava 2 s.co m d2jsRunner.run((HttpServletRequest) asyncContext.getRequest(), (HttpServletResponse) asyncContext.getResponse(), "delete"); } finally { asyncContext.complete(); } }
From source file:org.siphon.d2js.DispatchServlet.java
@Override protected void doPut(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); request.setAttribute("org.apache.catalina.ASYNC_SUPPORTED", true); AsyncContext asyncContext = request.startAsync(request, response); D2jsRunner d2jsRunner = this.getD2jsRunner(); try {//from w w w . j a va 2s .c o m d2jsRunner.run((HttpServletRequest) asyncContext.getRequest(), (HttpServletResponse) asyncContext.getResponse(), "modify"); } finally { asyncContext.complete(); } }
From source file:org.siphon.d2js.DispatchServlet.java
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); request.setAttribute("org.apache.catalina.ASYNC_SUPPORTED", true); AsyncContext asyncContext = request.startAsync(request, response); D2jsRunner d2jsRunner = this.getD2jsRunner(); String method = StringUtils.defaultIfEmpty(request.getParameter("_m"), "create"); try {//from w w w .j a v a 2s . c om d2jsRunner.run((HttpServletRequest) asyncContext.getRequest(), (HttpServletResponse) asyncContext.getResponse(), method); } finally { asyncContext.complete(); } }
From source file:org.structr.pdf.servlet.PdfServlet.java
@Override protected void renderAsyncOutput(HttpServletRequest request, HttpServletResponse response, App app, RenderContext renderContext, DOMNode rootElement) throws IOException { final AsyncContext async = request.startAsync(); final ServletOutputStream out = async.getResponse().getOutputStream(); final AtomicBoolean finished = new AtomicBoolean(false); final DOMNode rootNode = rootElement; response.setContentType("application/pdf"); response.setHeader("Content-Disposition", "attachment;filename=\"FileName.pdf\""); threadPool.submit(new Runnable() { @Override/*from w ww . j av a 2s .co m*/ public void run() { try (final Tx tx = app.tx()) { // render rootNode.render(renderContext, 0); finished.set(true); tx.success(); } catch (Throwable t) { t.printStackTrace(); logger.warn("Error while rendering page {}: {}", rootNode.getName(), t.getMessage()); try { response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); finished.set(true); } catch (IOException ex) { logger.warn("", ex); } } } }); // start output write listener out.setWriteListener(new WriteListener() { @Override public void onWritePossible() throws IOException { try { final Queue<String> queue = renderContext.getBuffer().getQueue(); String pageContent = ""; while (out.isReady()) { String buffer = null; synchronized (queue) { buffer = queue.poll(); } if (buffer != null) { pageContent += buffer; } else { if (finished.get()) { // TODO: implement parameters for wkhtmltopdf in settings Pdf pdf = new Pdf(); pdf.addPageFromString(pageContent); out.write(pdf.getPDF()); async.complete(); // prevent this block from being called again break; } Thread.sleep(1); } } } catch (EofException ee) { logger.warn( "Could not flush the response body content to the client, probably because the network connection was terminated."); } catch (IOException | InterruptedException t) { logger.warn("Unexpected exception", t); } } @Override public void onError(Throwable t) { if (t instanceof EofException) { logger.warn( "Could not flush the response body content to the client, probably because the network connection was terminated."); } else { logger.warn("Unexpected exception", t); } } }); }
From source file:org.structr.web.servlet.HtmlServlet.java
@Override protected void doGet(final HttpServletRequest request, final HttpServletResponse response) { final Authenticator auth = getConfig().getAuthenticator(); List<Page> pages = null; boolean requestUriContainsUuids = false; SecurityContext securityContext;/* ww w. j a v a 2 s . c o m*/ final App app; try { final String path = request.getPathInfo(); // check for registration (has its own tx because of write access if (checkRegistration(auth, request, response, path)) { return; } // check for registration (has its own tx because of write access if (checkResetPassword(auth, request, response, path)) { return; } // isolate request authentication in a transaction try (final Tx tx = StructrApp.getInstance().tx()) { securityContext = auth.initializeAndExamineRequest(request, response); tx.success(); } app = StructrApp.getInstance(securityContext); try (final Tx tx = app.tx()) { // Ensure access mode is frontend securityContext.setAccessMode(AccessMode.Frontend); request.setCharacterEncoding("UTF-8"); // Important: Set character encoding before calling response.getWriter() !!, see Servlet Spec 5.4 response.setCharacterEncoding("UTF-8"); boolean dontCache = false; logger.log(Level.FINE, "Path info {0}", path); // don't continue on redirects if (response.getStatus() == 302) { tx.success(); return; } final Principal user = securityContext.getUser(false); if (user != null) { // Don't cache if a user is logged in dontCache = true; } final RenderContext renderContext = RenderContext.getInstance(securityContext, request, response); renderContext.setResourceProvider(config.getResourceProvider()); final EditMode edit = renderContext.getEditMode(user); DOMNode rootElement = null; AbstractNode dataNode = null; final String[] uriParts = PathHelper.getParts(path); if ((uriParts == null) || (uriParts.length == 0)) { // find a visible page rootElement = findIndexPage(securityContext, pages, edit); logger.log(Level.FINE, "No path supplied, trying to find index page"); } else { if (rootElement == null) { rootElement = findPage(securityContext, pages, path, edit); } else { dontCache = true; } } if (rootElement == null) { // No page found // Look for a file final File file = findFile(securityContext, request, path); if (file != null) { streamFile(securityContext, file, request, response, edit); tx.success(); return; } // store remaining path parts in request final Matcher matcher = threadLocalUUIDMatcher.get(); for (int i = 0; i < uriParts.length; i++) { request.setAttribute(uriParts[i], i); matcher.reset(uriParts[i]); // set to "true" if part matches UUID pattern requestUriContainsUuids |= matcher.matches(); } if (!requestUriContainsUuids) { // Try to find a data node by name dataNode = findFirstNodeByName(securityContext, request, path); } else { dataNode = findNodeByUuid(securityContext, PathHelper.getName(path)); } //if (dataNode != null && !(dataNode instanceof Linkable)) { if (dataNode != null) { // Last path part matches a data node // Remove last path part and try again searching for a page // clear possible entry points request.removeAttribute(POSSIBLE_ENTRY_POINTS_KEY); rootElement = findPage(securityContext, pages, StringUtils.substringBeforeLast(path, PathHelper.PATH_SEP), edit); renderContext.setDetailsDataObject(dataNode); // Start rendering on data node if (rootElement == null && dataNode instanceof DOMNode) { rootElement = ((DOMNode) dataNode); } } } // look for pages with HTTP Basic Authentication (must be done as superuser) if (rootElement == null) { final HttpBasicAuthResult authResult = checkHttpBasicAuth(request, response, path); switch (authResult.authState()) { // Element with Basic Auth found and authentication succeeded case Authenticated: final Linkable result = authResult.getRootElement(); if (result instanceof Page) { rootElement = (DOMNode) result; securityContext = authResult.getSecurityContext(); renderContext.pushSecurityContext(securityContext); } else if (result instanceof File) { streamFile(authResult.getSecurityContext(), (File) result, request, response, EditMode.NONE); tx.success(); return; } break; // Page with Basic Auth found but not yet authenticated case MustAuthenticate: tx.success(); return; // no Basic Auth for given path, go on case NoBasicAuth: break; } } // Still nothing found, do error handling if (rootElement == null) { rootElement = notFound(response, securityContext); } if (rootElement == null) { tx.success(); return; } // check dont cache flag on page (if root element is a page) // but don't modify true to false dontCache |= rootElement.getProperty(Page.dontCache); if (EditMode.WIDGET.equals(edit) || dontCache) { setNoCacheHeaders(response); } if (!securityContext.isVisible(rootElement)) { rootElement = notFound(response, securityContext); if (rootElement == null) { tx.success(); return; } } else { if (!EditMode.WIDGET.equals(edit) && !dontCache && notModifiedSince(request, response, rootElement, dontCache)) { ServletOutputStream out = response.getOutputStream(); out.flush(); //response.flushBuffer(); out.close(); } else { // prepare response response.setCharacterEncoding("UTF-8"); String contentType = rootElement.getProperty(Page.contentType); if (contentType == null) { // Default contentType = "text/html;charset=UTF-8"; } if (contentType.equals("text/html")) { contentType = contentType.concat(";charset=UTF-8"); } response.setContentType(contentType); setCustomResponseHeaders(response); final boolean createsRawData = rootElement.getProperty(Page.pageCreatesRawData); // async or not? if (isAsync && !createsRawData) { final AsyncContext async = request.startAsync(); final ServletOutputStream out = async.getResponse().getOutputStream(); final AtomicBoolean finished = new AtomicBoolean(false); final DOMNode rootNode = rootElement; threadPool.submit(new Runnable() { @Override public void run() { try (final Tx tx = app.tx()) { //final long start = System.currentTimeMillis(); // render rootNode.render(renderContext, 0); finished.set(true); //final long end = System.currentTimeMillis(); //System.out.println("Done in " + (end-start) + " ms"); tx.success(); } catch (Throwable t) { t.printStackTrace(); final String errorMsg = t.getMessage(); try { //response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, errorMsg); finished.set(true); } catch (IOException ex) { ex.printStackTrace(); } } } }); // start output write listener out.setWriteListener(new WriteListener() { @Override public void onWritePossible() throws IOException { try { final Queue<String> queue = renderContext.getBuffer().getQueue(); while (out.isReady()) { String buffer = null; synchronized (queue) { buffer = queue.poll(); } if (buffer != null) { out.print(buffer); } else { if (finished.get()) { async.complete(); response.setStatus(HttpServletResponse.SC_OK); // prevent this block from being called again break; } Thread.sleep(1); } } } catch (Throwable t) { t.printStackTrace(); } } @Override public void onError(Throwable t) { t.printStackTrace(); } }); } else { final StringRenderBuffer buffer = new StringRenderBuffer(); renderContext.setBuffer(buffer); // render rootElement.render(renderContext, 0); try { response.getOutputStream().write(buffer.getBuffer().toString().getBytes("utf-8")); response.getOutputStream().flush(); response.getOutputStream().close(); } catch (IOException ioex) { ioex.printStackTrace(); } } } } tx.success(); } catch (FrameworkException fex) { fex.printStackTrace(); logger.log(Level.SEVERE, "Exception while processing request", fex); } } catch (IOException | FrameworkException t) { t.printStackTrace(); logger.log(Level.SEVERE, "Exception while processing request", t); UiAuthenticator.writeInternalServerError(response); } }