Example usage for javax.servlet.http HttpServletResponse sendError

Introduction

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

Prototype

public void sendError(int sc, String msg) throws IOException;

Source Link

Document

Sends an error response to the client using the specified status and clears the buffer.

Usage

From source file:ai.susi.server.api.vis.PieChartServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {

    Query post = RemoteAccess.evaluate(request);

    // Get the json data to visualize as a key value pair of data=

    if (post.isDoS_blackout()) {
        response.sendError(503, "Your request frequency is too high");
        return;/*from w w w. ja  va 2 s.c o  m*/
    }

    // Get the data json string passed as stream parameter
    String data = post.get("data", "");
    String legendBitString = post.get("legend", "");
    String tooltipBitString = post.get("tooltip", "");
    String widthString = post.get("width", "");
    String heightString = post.get("height", "");
    boolean legendBit = true;
    boolean tooltipBit = false;

    int width = 500;
    int height = 500;

    if ("".equals(legendBitString) || "false".equals(legendBitString)) {
        legendBit = true;
    } else {
        legendBit = false;
    }

    if ("".equals(tooltipBitString) || !"true".equals(tooltipBitString)) {
        tooltipBit = false;
    } else {
        tooltipBit = true;
    }

    if (!"".equals(widthString)) {
        width = Integer.parseInt(widthString);
    }

    if (!"".equals(heightString)) {
        height = Integer.parseInt(heightString);
    }

    JSONObject json = new JSONObject(data);

    response.setContentType("image/png");

    OutputStream outputStream = response.getOutputStream();

    JFreeChart chart = getChart(json, legendBit, tooltipBit);
    ChartUtilities.writeChartAsPNG(outputStream, chart, width, height);
}

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From source file:com.cognitivabrasil.repositorio.web.FileController.java

@RequestMapping(value = "/{id}/thumbnail", method = RequestMethod.GET)
public void getThumbnail(@PathVariable("id") Long id, HttpServletResponse response) throws IOException {

    if (id == null || id == 0) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND, "O arquivo solicitado no foi encontrado.");
    } else {//from ww w .  j a  v a 2  s . c  o m
        String fileName = Config.FILE_PATH + id + "/thumbnail";

        try {
            // get your file as InputStream
            InputStream is = new FileInputStream(new File(fileName));

            response.setHeader("Content-Disposition", "attachment; filename= thumbnail" + id);
            response.setStatus(HttpServletResponse.SC_CREATED);
            // copy it to response's OutputStream
            IOUtils.copy(is, response.getOutputStream());

            response.flushBuffer();

        } catch (FileNotFoundException fe) {
            // get your file as InputStream

            InputStream is = new FileInputStream(new File(DEFAULT_THUMBNAIL_PATH));

            response.setHeader("Content-Disposition", "attachment; filename=default-thumbnail.png");
            response.setContentType(MediaType.IMAGE_PNG_VALUE);
            response.setStatus(HttpServletResponse.SC_CREATED);
            // copy it to response's OutputStream
            IOUtils.copy(is, response.getOutputStream());

            response.flushBuffer();
            LOG.error("Imagen solicitada no foi encontrada.", fe);
        } catch (IOException ex) {
            LOG.error("Error writing file to output stream. Filename was '" + fileName + "'");
            throw ex;
        }
    }
}

---

From source file:de.steilerdev.myVerein.server.security.rest.RestLogoutSuccessHandler.java

@Override
public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response,
        Authentication authentication) throws IOException, ServletException {
    User currentUser = (User) authentication.getPrincipal();
    logger.info("[{}] Successfully logged user out from IP {}", currentUser,
            SecurityHelper.getClientIpAddr(request));
    if (!response.isCommitted()) {
        response.sendError(HttpServletResponse.SC_OK, "Successfully logged out");
    }/* www.java2 s . c o m*/
}

---

From source file:net.lr.jmsbridge.BridgeServlet.java

/**
 * Forward HTTP request to a jms queue and listen on a temporary queue for the reply.
 * Connects to the jms server by using the username and password from the HTTP basic auth.
 *//*  www.  jav  a2s.c  o  m*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String authHeader = req.getHeader("Authorization");
    if (authHeader == null) {
        resp.setHeader("WWW-Authenticate", "Basic realm=\"Bridge\"");
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED, "auth");
        return;
    }
    UserNameAndPassword auth = extractUserNamePassword(authHeader);
    PrintStream out = new PrintStream(resp.getOutputStream());
    String contextPath = req.getContextPath();
    String uri = req.getRequestURI();
    String queueName = uri.substring(contextPath.length() + 1);
    final StringBuffer reqContent = retrieveRequestContent(req.getReader());

    ConnectionFactory cf = connectionPool.getConnectionFactory(auth);
    JmsTemplate jmsTemplate = new JmsTemplate();
    jmsTemplate.setConnectionFactory(cf);
    jmsTemplate.setReceiveTimeout(10000);
    final Destination replyDest = connectionPool.getReplyDestination(cf, auth);
    jmsTemplate.send(queueName, new MessageCreator() {

        @Override
        public Message createMessage(Session session) throws JMSException {
            TextMessage message = session.createTextMessage(reqContent.toString());
            message.setJMSReplyTo(replyDest);
            return message;
        }

    });
    Message replyMsg = jmsTemplate.receive(replyDest);
    if (replyMsg instanceof TextMessage) {
        TextMessage replyTMessage = (TextMessage) replyMsg;
        try {
            out.print(replyTMessage.getText());
        } catch (JMSException e) {
            JmsUtils.convertJmsAccessException(e);
        }
    }
}

---

From source file:com.thoughtworks.go.server.websocket.ConsoleLogSocketServlet.java

@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    Username userName = SessionUtils.currentUsername();
    String pipeline = pipeline(request);

    if (authorizedToViewPipeline(userName, pipeline)) {
        super.service(request, response);
        return;//from   w w w.  jav  a 2  s .c  o  m
    }

    response.sendError(SC_FORBIDDEN,
            String.format("%s is not authorized to view the pipeline %s", userName.getDisplayName(), pipeline));
}

---

From source file:com.seleniumtests.it.driver.support.server.PageServlet.java

/**
  * Allow downloading of files in upload folder
  *///from w ww  .  j  av  a 2 s.  c  om
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    try {
        if (this.resourceFile.endsWith(".css")) {
            resp.addHeader("Content-Type", "text/css ");
        }
        IOUtils.copy(getClass().getResourceAsStream(this.resourceFile), resp.getOutputStream());
    } catch (IOException e) {
        resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Error while handling request: " + e.getMessage());
    }
}

---

From source file:de.mpg.escidoc.services.pidcache.web.MainServlet.java

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    logger.info("POST request");

    if (req.getParameter("url") == null) {
        logger.warn("URL parameter failed.");
        resp.sendError(HttpServletResponse.SC_NO_CONTENT, "URL parameter failed.");
    }/*from w  ww.  j a va  2 s  .co  m*/
    try {

        if (!authenticate(req, resp)) {
            logger.warn("Unauthorized request from " + req.getRemoteHost());
            return;
        }

        PidCacheService cacheService = new PidCacheService();
        String xmlOutput = null;

        if (logger.isDebugEnabled()) {
            logger.info("request pathInfo <" + req.getPathInfo() + ">");
        }
        if (GwdgPidService.GWDG_PIDSERVICE_CREATE.equals(req.getPathInfo())) {
            xmlOutput = cacheService.create(req.getParameter("url"));
        } else if (GwdgPidService.GWDG_PIDSERVICE_EDIT.equals(req.getPathInfo())) {
            if (req.getParameter("pid") == null) {
                resp.sendError(HttpServletResponse.SC_NO_CONTENT, "PID parameter failed.");
            }
            xmlOutput = cacheService.update(req.getParameter("pid"), req.getParameter("url"));
        } else {
            resp.sendError(HttpServletResponse.SC_NOT_FOUND, req.getPathInfo());
        }

        resp.encodeRedirectURL(cacheService.getLocation());
        resp.addHeader("Location", cacheService.getLocation());
        resp.getWriter().append(xmlOutput);
    } catch (Exception e) {
        throw new ServletException("Error processing request", e);
    }
}

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From source file:org.ngrinder.home.controller.HomeController.java

/**
 * Return the health check message. If there is shutdown lock, it returns
 * 503. Otherwise it returns region lists.
 *
 * @param response response//from www .  j  a va 2 s  . c o m
 * @return region list
 */
@RequestMapping("/check/healthcheck")
public HttpEntity<String> healthCheck(HttpServletResponse response) {
    if (getConfig().hasShutdownLock()) {
        try {
            response.sendError(503, "nGrinder is about to down");
        } catch (IOException e) {
            LOG.error("While running healthCheck() in HomeController, the error occurs.");
            LOG.error("Details : ", e);
        }
    }
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("current", regionService.getCurrent());
    map.put("regions", regionService.getAll());
    return toJsonHttpEntity(map, rawObjectJsonSerializer);
}

---

From source file:com.carolinarollergirls.scoreboard.jetty.LoadXmlScoreBoard.java

protected void handleDocument(HttpServletRequest request, HttpServletResponse response, Document doc)
        throws IOException {
    if (request.getPathInfo().equalsIgnoreCase("/load"))
        getXmlScoreBoard().loadDocument(doc);
    else if (request.getPathInfo().equalsIgnoreCase("/merge"))
        getXmlScoreBoard().mergeDocument(doc);
    else/*from  w w  w.  j a  v  a2  s  .c  om*/
        response.sendError(HttpServletResponse.SC_NOT_FOUND, "Must specify to load or merge document");
    response.setContentType("text/plain");
    response.setStatus(HttpServletResponse.SC_OK);
}

---

From source file:net.shopxx.interceptor.ValidateInterceptor.java

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception {
    if (!isValid(request)) {
        String requestType = request.getHeader("X-Requested-With");
        if (StringUtils.equalsIgnoreCase(requestType, "XMLHttpRequest")) {
            response.addHeader("validateStatus", "accessDenied");
        }//  ww w .j a va  2  s  . co  m
        response.sendError(HttpServletResponse.SC_FORBIDDEN, ERROR_MESSAGE);
        return false;
    }
    return true;
}

---

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