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:io.mapzone.arena.geocode.GeocodeServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    try {//ww  w  . jav a 2s.c  o m

        EventManager.instance().publish(new ServletRequestEvent(getServletContext(), req));

        if (req.getParameterMap().isEmpty()) {
            resp.sendError(400, "No parameters found! Please specify at least 'text'.");
            return;
        }

        GeocodeQuery query = extractQuery(req);

        // perform search
        List<Address> addresses = service.geocode(query);

        resp.setStatus(HttpStatus.SC_OK);
        resp.setContentType("application/json;charset=utf-8");
        handleCors(req, resp);

        // convert addresses to result json
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(resp.getOutputStream());
        JSONWriter writer = new JSONWriter(outputStreamWriter);
        writer.object();
        writer.key("results");
        writer.array();
        for (Address address : addresses) {
            writer.value(toJSON(address));
        }
        writer.endArray();
        writer.endObject();
        outputStreamWriter.flush();
        outputStreamWriter.close();
    } catch (Exception e) {
        e.printStackTrace();
        resp.sendError(HttpStatus.SC_INTERNAL_SERVER_ERROR, e.getMessage());
    }
}

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From source file:gsn.http.OutputStructureHandler.java

public boolean isValid(HttpServletRequest request, HttpServletResponse response) throws IOException {
    String vsName = request.getParameter("name");

    //Added by Behnaz
    HttpSession session = request.getSession();
    User user = (User) session.getAttribute("user");

    if (vsName == null || vsName.trim().length() == 0) {
        response.sendError(WebConstants.MISSING_VSNAME_ERROR, "The virtual sensor name is missing");
        return false;
    }/*from   ww w .  j  ava  2  s  . com*/
    VSensorConfig sensorConfig = Mappings.getVSensorConfig(vsName);
    if (sensorConfig == null) {
        response.sendError(WebConstants.ERROR_INVALID_VSNAME, "The specified virtual sensor doesn't exist.");
        return false;
    }

    //Added by Behnaz.
    if (user != null) // meaning, that a login session is active, otherwise we couldn't get there
        if (Main.getContainerConfig().isAcEnabled() == true) {
            if (user.hasReadAccessRight(vsName) == false && user.isAdmin() == false) // ACCESS_DENIED
            {
                response.sendError(WebConstants.ACCESS_DENIED,
                        "Access denied to the specified virtual sensor .");
                return false;
            }
        }

    return true;
}

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From source file:com.rockagen.gnext.service.spring.security.extension.ExAuthenticationHandler.java

/**
 * Authentication failure handler//from   w  w w. j  a  v a 2  s  .  co m
 *
 * @param request  request
 * @param response response
 */
public void failureHandler(HttpServletRequest request, HttpServletResponse response) throws IOException {
    String uid = request.getParameter(username);
    try {
        failureRegister(uid, request);
    } catch (AuthenticationException e) {
        response.sendError(HttpServletResponse.SC_UNAUTHORIZED, e.getMessage());
    }
}

---

From source file:org.terasoluna.gfw.functionaltest.app.redirect.WhiteListRedirectStrategy.java

public void sendRedirect(HttpServletRequest request, HttpServletResponse response, String url)
        throws IOException {
    if (checkWhiteList(url)) {
        String redirectUrl = response.encodeRedirectURL(url);

        if (logger.isDebugEnabled()) {
            logger.debug("Redirecting to '" + redirectUrl + "'");
        }/*from   www  .j ava  2  s  .  c  om*/

        response.sendRedirect(redirectUrl);

    } else {
        response.sendError(HttpServletResponse.SC_FORBIDDEN, url);
    }
}

---

From source file:de.mpg.imeji.presentation.servlet.ImageServlet.java

/**
 * {@inheritDoc}//from w ww  .  ja v a2 s . com
 */
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String imageUrl = req.getParameter("imageUrl");
    GetMethod method = null;
    try {
        if (imageUrl == null) {
            resp.sendError(404, "URL null");
        } else {
            method = new GetMethod(imageUrl);
            method.setFollowRedirects(false);
            if (userHandle == null) {
                userHandle = LoginHelper.login(PropertyReader.getProperty("imeji.escidoc.user"),
                        PropertyReader.getProperty("imeji.escidoc.password"));
            }
            method.addRequestHeader("Cookie", "escidocCookie=" + userHandle);
            method.addRequestHeader("Cache-Control", "public");
            method.setRequestHeader("Connection", "close");
            // Execute the method with HttpClient.
            HttpClient client = new HttpClient();
            ProxyHelper.setProxy(client, frameworkUrl);
            client.executeMethod(method);
            // byte[] input;
            InputStream input;
            if (method.getStatusCode() == 302) {
                // try again
                logger.info("try load image again");
                method.releaseConnection();
                userHandle = LoginHelper.login(
                        de.mpg.imeji.presentation.util.PropertyReader.getProperty("imeji.escidoc.user"),
                        PropertyReader.getProperty("imeji.escidoc.password"));
                method = new GetMethod(imageUrl);
                method.setFollowRedirects(true);
                method.addRequestHeader("Cookie", "escidocCookie=" + userHandle);
                client.executeMethod(method);
            }
            if (method.getStatusCode() != 200) {
                ProxyHelper.setProxy(client, PropertyReader.getProperty("escidoc.imeji.instance.url"));
                method = new GetMethod(PropertyReader.getProperty("escidoc.imeji.instance.url")
                        + "/resources/icon/defaultThumb.gif");
                client.executeMethod(method);
                // out = resp.getOutputStream();
                if (method.getStatusCode() == 302) {
                    method.releaseConnection();
                    throw new RuntimeException("error code " + method.getStatusCode());
                }
                input = method.getResponseBodyAsStream();
            } else {
                for (Header header : method.getResponseHeaders()) {
                    resp.setHeader(header.getName(), header.getValue());
                }
                input = method.getResponseBodyAsStream();
            }
            OutputStream out = resp.getOutputStream();
            byte[] buffer = new byte[1024];
            int numRead;
            long numWritten = 0;
            while ((numRead = input.read(buffer)) != -1) {
                out.write(buffer, 0, numRead);
                // out.flush();
                numWritten += numRead;
            }
            input.close();
            method.releaseConnection();
            out.flush();
            out.close();
            // ReadableByteChannel inputChannel = Channels.newChannel(input);
            // WritableByteChannel outputChannel = Channels.newChannel(out);
            // fastChannelCopy(inputChannel, outputChannel);
            // inputChannel.close();
            // outputChannel.close();
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
        if (method != null)
            method.releaseConnection();
    }
}

---

From source file:au.org.ala.biocache.web.DownloadController.java

/**
 * Add a download to the offline queue//from w w w.ja  v  a2 s .  co  m
 * @param requestParams
 * @param ip
 * @param apiKey
 * @param type
 * @param response
 * @param request
 * @return
 * @throws Exception
 */
@RequestMapping(value = "occurrences/offline/{type}/download*", method = RequestMethod.GET)
public String occurrenceDownload(DownloadRequestParams requestParams,
        @RequestParam(value = "ip", required = false) String ip,
        @RequestParam(value = "apiKey", required = false) String apiKey, @PathVariable("type") String type,
        HttpServletResponse response, HttpServletRequest request) throws Exception {

    boolean sensitive = false;
    if (apiKey != null) {
        if (shouldPerformOperation(apiKey, response, false)) {
            sensitive = true;
        }
    } else if (StringUtils.isEmpty(requestParams.getEmail())) {
        response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED,
                "Unable to perform an offline download without an email address");
    }

    ip = ip == null ? request.getRemoteAddr() : ip;
    DownloadType downloadType = "index".equals(type.toLowerCase()) ? DownloadType.RECORDS_INDEX
            : DownloadType.RECORDS_DB;
    //create a new task
    DownloadDetailsDTO dd = new DownloadDetailsDTO(requestParams, ip, downloadType);
    dd.setIncludeSensitive(sensitive);

    persistentQueueDAO.addDownloadToQueue(dd);
    return null;
}

---

From source file:io.robusta.rra.controller.SpringController.java

@Override
public boolean validate(HttpServletRequest request, HttpServletResponse response, String... keys) {
    Representation representation = getRepresentation(request);
    throwIfNull(representation);/*from  w ww. j a v a  2s.c o  m*/
    boolean valid = representation.has(keys);

    if (!valid) {
        try {
            response.sendError(406, "Json not valid ! it hasn't at least one of these keys: "
                    + java.util.Arrays.toString(keys));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return valid;
}

---

From source file:com.streamsets.pipeline.lib.http.HttpReceiverServlet.java

protected void processRequest(HttpServletRequest req, InputStream is, HttpServletResponse resp)
        throws IOException {
    if (getReceiver().process(req, is, resp)) {
        resp.setStatus(HttpServletResponse.SC_OK);
        requestMeter.mark();//from   w  w  w  .j a va2 s . c o  m
    } else {
        resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Record(s) didn't reach all destinations");
        errorRequestMeter.mark();
    }
}

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From source file:com.controlj.addon.weather.servlets.AjaxController.java

private void handleError(HttpServletResponse resp, Throwable th) throws IOException {
    resp.sendError(500, th.getMessage());
    Logging.println(th);/*from   ww  w .ja  va  2s  .c o  m*/
}

---

From source file:org.dspace.app.webui.cris.controller.ProjectDetailsController.java

@Override
public ModelAndView handleDetails(HttpServletRequest request, HttpServletResponse response) throws Exception {
    Map<String, Object> model = new HashMap<String, Object>();

    Project grant = extractProject(request);

    if (grant == null) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND, "Grant page not found");
        return null;
    }//from   ww  w.  j a  v a  2 s  .  c  o  m

    Context context = UIUtil.obtainContext(request);

    EPerson currentUser = context.getCurrentUser();

    if ((grant.getStatus() == null || grant.getStatus().booleanValue() == false)
            && !AuthorizeManager.isAdmin(context)) {

        if (currentUser != null || Authenticate.startAuthentication(context, request, response)) {
            // Log the error
            log.info(LogManager.getHeader(context, "authorize_error",
                    "Only system administrator can access to disabled researcher page"));

            JSPManager.showAuthorizeError(request, response,
                    new AuthorizeException("Only system administrator can access to disabled researcher page"));
        }
        return null;
    }

    if (AuthorizeManager.isAdmin(context)) {
        model.put("grant_page_menu", new Boolean(true));
    }

    ModelAndView mvc = null;

    try {
        mvc = super.handleDetails(request, response);
    } catch (RuntimeException e) {
        return null;
    }

    if (subscribeService != null) {
        boolean subscribed = subscribeService.isSubscribed(currentUser, grant);
        model.put("subscribed", subscribed);

    }

    request.setAttribute("sectionid", StatsConfig.DETAILS_SECTION);
    new DSpace().getEventService().fireEvent(new UsageEvent(UsageEvent.Action.VIEW, request, context, grant));

    mvc.getModel().putAll(model);
    mvc.getModel().put("project", grant);
    return mvc;
}

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