List of usage examples for javax.servlet UnavailableException isPermanent
public boolean isPermanent()
boolean indicating whether the servlet is permanently unavailable. From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.ServletHolder.java
private Servlet makeUnavailable(UnavailableException e) throws UnavailableException { _unavailableEx = e;/* ww w. j a v a2 s .co m*/ _unavailable = -1; if (e.isPermanent()) _unavailable = -1; else { if (_unavailableEx.getUnavailableSeconds() > 0) _unavailable = System.currentTimeMillis() + 1000 * _unavailableEx.getUnavailableSeconds(); else _unavailable = System.currentTimeMillis() + 5000; // TODO configure } throw _unavailableEx; }
From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.ServletHandler.java
/** Handle request. * @param pathInContext/*from w w w . j a v a2 s. c o m*/ * @param pathParams * @param httpRequest * @param httpResponse * @exception IOException */ public void handle(String pathInContext, String pathParams, HttpRequest httpRequest, HttpResponse httpResponse) throws IOException { if (!isStarted()) return; // Handle TRACE if (HttpRequest.__TRACE.equals(httpRequest.getMethod())) { handleTrace(httpRequest, httpResponse); return; } // Look for existing request/response objects (from enterScope call) ServletHttpRequest request = (ServletHttpRequest) httpRequest.getWrapper(); ServletHttpResponse response = (ServletHttpResponse) httpResponse.getWrapper(); if (request == null) { // Not in ServletHttpContext, but bumble on anyway request = new ServletHttpRequest(this, pathInContext, httpRequest); response = new ServletHttpResponse(request, httpResponse); httpRequest.setWrapper(request); httpResponse.setWrapper(response); } else { request.recycle(this, pathInContext); response.recycle(); } // Look for the servlet Map.Entry servlet = getHolderEntry(pathInContext); ServletHolder servletHolder = servlet == null ? null : (ServletHolder) servlet.getValue(); if (log.isDebugEnabled()) log.debug("servlet=" + servlet); try { // Adjust request paths if (servlet != null) { String servletPathSpec = (String) servlet.getKey(); request.setServletPaths(PathMap.pathMatch(servletPathSpec, pathInContext), PathMap.pathInfo(servletPathSpec, pathInContext), servletHolder); } // Handle the session ID request.setRequestedSessionId(pathParams); HttpSession session = request.getSession(false); if (session != null) ((SessionManager.Session) session).access(); if (log.isDebugEnabled()) log.debug("session=" + session); // Do that funky filter and servlet thang! if (servletHolder != null) dispatch(pathInContext, request, response, servletHolder, Dispatcher.__REQUEST); } catch (Exception e) { log.debug(LogSupport.EXCEPTION, e); Throwable th = e; while (th instanceof ServletException) { log.warn(LogSupport.EXCEPTION, th); Throwable cause = ((ServletException) th).getRootCause(); if (cause == th || cause == null) break; th = cause; } if (th instanceof HttpException) throw (HttpException) th; if (th instanceof EOFException) throw (IOException) th; else if (log.isDebugEnabled() || !(th instanceof java.io.IOException)) { if (_contextLog != null) { if (th instanceof RuntimeException) _contextLog.error(httpRequest.getURI() + ": ", th); else _contextLog.warn(httpRequest.getURI() + ": ", th); } if (log.isDebugEnabled()) { if (th instanceof RuntimeException) log.error(httpRequest.getURI() + ": ", th); else log.warn(httpRequest.getURI() + ": ", th); log.debug(httpRequest); } } httpResponse.getHttpConnection().forceClose(); if (!httpResponse.isCommitted()) { request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION_TYPE, th.getClass()); request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION, th); if (th instanceof UnavailableException) { UnavailableException ue = (UnavailableException) th; if (ue.isPermanent()) response.sendError(HttpResponse.__404_Not_Found, e.getMessage()); else response.sendError(HttpResponse.__503_Service_Unavailable, e.getMessage()); } else response.sendError(HttpResponse.__500_Internal_Server_Error, e.getMessage()); } else if (log.isDebugEnabled()) log.debug("Response already committed for handling " + th); } catch (Error e) { log.warn("Error for " + httpRequest.getURI(), e); if (log.isDebugEnabled()) log.debug(httpRequest); httpResponse.getHttpConnection().forceClose(); if (!httpResponse.isCommitted()) { request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION_TYPE, e.getClass()); request.setAttribute(ServletHandler.__J_S_ERROR_EXCEPTION, e); response.sendError(HttpResponse.__500_Internal_Server_Error, e.getMessage()); } else if (log.isDebugEnabled()) log.debug("Response already committed for handling ", e); } finally { if (servletHolder != null && response != null) { response.complete(); } } }
From source file:org.apache.catalina.core.StandardWrapper.java
/** * Process an UnavailableException, marking this servlet as unavailable * for the specified amount of time./*w w w .j a va 2 s . c o m*/ * * @param unavailable The exception that occurred, or <code>null</code> * to mark this servlet as permanently unavailable */ public void unavailable(UnavailableException unavailable) { getServletContext().log(sm.getString("standardWrapper.unavailable", getName())); if (unavailable == null) setAvailable(Long.MAX_VALUE); else if (unavailable.isPermanent()) setAvailable(Long.MAX_VALUE); else { int unavailableSeconds = unavailable.getUnavailableSeconds(); if (unavailableSeconds <= 0) unavailableSeconds = 60; // Arbitrary default setAvailable(System.currentTimeMillis() + (unavailableSeconds * 1000L)); } }
From source file:org.eclipse.gyrex.http.jetty.internal.app.ApplicationHandlerCollection.java
@Override public void handle(final String target, final Request baseRequest, final HttpServletRequest request, final HttpServletResponse response) throws IOException, ServletException { // don't do anything if already processed if (response.isCommitted() || baseRequest.isHandled()) return;/* www . ja va 2 s. c o m*/ final Iterator<Handler> handlers = this.handlers.iterator(); if (!handlers.hasNext()) return; final ThroughputMetric requestsMetric = metrics.getRequestsMetric(); final long requestStart = requestsMetric.requestStarted(); try { doHandle(target, baseRequest, request, response); if (response instanceof Response) { final int status = ((Response) response).getStatus(); if (HttpStatus.isServerError(status)) { metrics.getRequestsMetric().requestFailed(); metrics.error(status, ((Response) response).getReason()); } else { metrics.getRequestsMetric().requestFinished(((Response) response).getContentCount(), System.currentTimeMillis() - requestStart); } } else { metrics.getRequestsMetric().requestFinished(0, System.currentTimeMillis() - requestStart); } } catch (final EofException | RuntimeIOException | ContinuationThrowable e) { metrics.getRequestsMetric().requestFailed(); throw e; } catch (final Exception e) { metrics.getRequestsMetric().requestFailed(); final DispatcherType type = baseRequest.getDispatcherType(); if (!(DispatcherType.REQUEST.equals(type) || DispatcherType.ASYNC.equals(type))) { if (e instanceof IOException) throw (IOException) e; if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; } // handle or log exception else if (e instanceof RuntimeIOException) throw (RuntimeIOException) e; else if (e instanceof EofException) throw (EofException) e; else if ((e instanceof IOException) || (e instanceof UnavailableException) || (e instanceof IllegalStateException)) { if (Platform.inDebugMode()) { LOG.debug("Exception processing request {}: {}", request.getRequestURI(), ExceptionUtils.getMessage(e), e); LOG.debug(request.toString()); } } else { LOG.error("Exception processing request {}: {}", new Object[] { request.getRequestURI(), ExceptionUtils.getRootCauseMessage(e), e }); if (Platform.inDebugMode()) { LOG.debug(request.toString()); } } // send error response if possible if (!response.isCommitted()) { request.setAttribute(RequestDispatcher.ERROR_EXCEPTION_TYPE, e.getClass()); request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, e); if (e instanceof UnavailableException) { final UnavailableException ue = (UnavailableException) e; if (ue.isPermanent()) { response.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage()); } else { response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE, e.getMessage()); } } else if (e instanceof IllegalStateException) { response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE, e.getMessage()); } else { response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); } } else { // give up if (JettyDebug.debug) { LOG.debug("Response already committed for handling {}", ExceptionUtils.getMessage(e)); } } } catch (final Error e) { metrics.getRequestsMetric().requestFailed(); // only handle some errors if (!((e instanceof LinkageError) || (e instanceof AssertionError))) throw e; final DispatcherType type = baseRequest.getDispatcherType(); if (!(DispatcherType.REQUEST.equals(type) || DispatcherType.ASYNC.equals(type))) throw e; LOG.error("Error processing request {}: {}", new Object[] { request.getRequestURI(), ExceptionUtils.getRootCauseMessage(e), e }); if (JettyDebug.debug) { LOG.debug(request.toString()); } // TODO httpResponse.getHttpConnection().forceClose(); if (!response.isCommitted()) { request.setAttribute(RequestDispatcher.ERROR_EXCEPTION_TYPE, e.getClass()); request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, e); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage()); } else { if (JettyDebug.debug) { LOG.debug("Response already committed for handling {}", ExceptionUtils.getMessage(e)); } } } }
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;/*www . j av a2 s .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(); }