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:org.loklak.api.server.UserServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    RemoteAccess.Post post = RemoteAccess.evaluate(request);

    // manage DoS
    if (post.isDoS_blackout()) {
        response.sendError(503, "your request frequency is too high");
        return;//from   w  w  w .ja v  a  2  s .  co  m
    }

    // parameters
    String callback = post.get("callback", "");
    boolean jsonp = callback != null && callback.length() > 0;
    boolean minified = post.get("minified", false);
    String[] screen_names = post.get("screen_name", "").split(",");
    String followers = screen_names.length == 1 ? post.get("followers", "0") : "0";
    String following = screen_names.length == 1 ? post.get("following", "0") : "0";
    int maxFollowers = Integer.parseInt(followers);
    int maxFollowing = Integer.parseInt(following);

    List<Map<String, Object>> twitterUserEntries = new ArrayList<>();
    for (String screen_name : screen_names) {
        try {
            Map<String, Object> twitterUserEntry = TwitterAPI.getUser(screen_name, false);
            if (twitterUserEntry != null) {
                TwitterAPI.enrichLocation(twitterUserEntry);
                twitterUserEntries.add(twitterUserEntry);
            }
        } catch (TwitterException e) {
        }
    }
    Map<String, Object> topology = null;
    try {
        topology = TwitterAPI.getNetwork(screen_names[0], maxFollowers, maxFollowing);
    } catch (TwitterException e) {
    }

    post.setResponse(response, "application/javascript");

    // generate json
    Map<String, Object> m = new LinkedHashMap<>();
    Map<String, Object> metadata = new LinkedHashMap<>();
    metadata.put("client", post.getClientHost());
    m.put("search_metadata", metadata);

    if (twitterUserEntries.size() == 1)
        m.put("user", twitterUserEntries.iterator().next());
    if (twitterUserEntries.size() > 1)
        m.put("users", twitterUserEntries);
    if (topology != null)
        m.put("topology", topology);

    // write json
    response.setCharacterEncoding("UTF-8");
    PrintWriter sos = response.getWriter();
    if (jsonp)
        sos.print(callback + "(");
    sos.print((minified ? new ObjectMapper().writer() : new ObjectMapper().writerWithDefaultPrettyPrinter())
            .writeValueAsString(m));
    if (jsonp)
        sos.println(");");
    sos.println();
    sos.flush();
    sos.close();
    post.finalize();
}

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From source file:es.ucm.fdi.storage.web.StorageController.java

@RequestMapping(method = RequestMethod.GET, value = "/storage/**")
public void servirArchivos(HttpServletRequest request, HttpServletResponse response) throws IOException {
    String ctxPath = request.getContextPath();
    String objectId = request.getRequestURI();
    objectId = objectId.substring(ctxPath.length() + "/storage/".length());
    int pos = objectId.indexOf('/');
    if (pos < 0) {
        response.sendError(400, "Upps");
        return;/*  w  w w. ja v  a 2s. c o  m*/
    }
    String bucket = objectId.substring(0, pos);
    String key = objectId.substring(pos + 1);
    StorageObject object = storage.getObject(bucket, key);
    String mimeType = object.getMimeType();
    long length = object.getContentLength();

    // set content attributes for the response
    response.setContentType(mimeType);
    response.setContentLength((int) length);

    try {
        object.transferTo(response.getOutputStream());
        response.flushBuffer();
    } catch (IOException ex) {
        logger.error("Error writing file to output stream. bucket=>'{}', key=>'{}'", bucket, key, ex);
        response.sendError(500, "Upps");
    }
}

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From source file:se.vgregion.urlservice.controllers.BitlyApiController.java

private void sendUnknownFormatError(HttpServletResponse response) throws IOException {
    response.sendError(500, "INVALID_ARG_FORMAT");
}

---

From source file:se.vgregion.urlservice.controllers.BitlyApiController.java

private void sendInvalidUriError(HttpServletResponse response) throws IOException {
    response.sendError(500, "INVALID_URI");
}

---

From source file:se.vgregion.urlservice.controllers.BitlyApiController.java

private void sendAccessDeniedError(HttpServletResponse response) throws IOException {
    response.sendError(500, "ACCESS_DENIED");
}

---

From source file:com.sesnu.orion.web.controller.DuLicenseController.java

@RequestMapping(value = "/api/user/lic/{state}", method = RequestMethod.POST)
public @ResponseBody List<DuLicenseView> addItem(HttpServletResponse response, @RequestBody DuLicense lic,
        @PathVariable("state") String state) throws Exception {

    OrderView order = orderDao.get(lic.getOrderRef());
    if (order == null) {
        response.sendError(400, Util.parseError("Invalid Inv No, please select from the list"));
        return null;
    }/*  w  w  w.j av  a 2 s  .  c  o m*/

    if (lic.getIssueDate() == null) {
        response.sendError(400, Util.parseError("Please select issue date"));
        return null;
    }

    lic = setExpireDate(lic);

    lic.setId(null);
    licDAO.saveOrUpdate(lic);

    List<DuLicenseView> licenses = null;
    if (state.equals("all")) {
        licenses = licDAO.listAll();
    } else {
        licenses = licDAO.listByOrderId(lic.getOrderRef());
    }
    if (licenses.size() > 0) {
        return licenses;
    }
    response.sendError(404);
    return null;

}

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From source file:org.axonframework.samples.trader.webui.rest.RestController.java

@RequestMapping(value = "/command", method = RequestMethod.POST)
public @ResponseBody String mappedCommand(String command, HttpServletResponse response) throws IOException {
    try {//from   w ww  .j  a  va 2  s .co m
        Object actualCommand = xStream.fromXML(command);
        commandBus.dispatch(new GenericCommandMessage<Object>(actualCommand));
    } catch (StructuralCommandValidationFailedException e) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "This is an invalid request.");
    } catch (Exception e) {
        logger.error("Problem whils deserializing an xml: {}", command, e);
        return "ERROR - " + e.getMessage();
    }

    return "OK";
}

---

From source file:org.piraso.server.spring.web.PirasoServlet.java

private void stopService(HttpServletResponse response, User user) throws IOException {
    ResponseLoggerService service = getRegistry().getLogger(user);

    if (service == null) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND,
                String.format("Service for user '%s' not found.", user.toString()));
        return;//w ww. j  ava  2 s.  co m
    }

    if (!service.isAlive()) {
        response.sendError(HttpServletResponse.SC_CONFLICT,
                String.format("Service for user '%s' not active.", user.toString()));
        getRegistry().removeUser(user);

        return;
    }

    try {
        // gracefully stop the service
        service.stopAndWait(stopTimeout);

        if (service.isAlive()) {
            response.sendError(HttpServletResponse.SC_REQUEST_TIMEOUT,
                    String.format("Service for user '%s' stop timeout.", user.toString()));
        }
    } catch (InterruptedException ignored) {
    }
}

---

From source file:io.hops.hopsworks.api.admin.llap.LlapMonitorProxyServlet.java

@Override
protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse)
        throws ServletException, IOException {

    // Check if the user is logged in
    if (servletRequest.getUserPrincipal() == null) {
        servletResponse.sendError(403, "User is not logged in");
        return;//from  ww w .  ja v a 2s  .c  o m
    }

    // Check that the user is an admin
    boolean isAdmin = servletRequest.isUserInRole("HOPS_ADMIN");
    if (!isAdmin) {
        servletResponse.sendError(Response.Status.BAD_REQUEST.getStatusCode(),
                "You don't have the access right for this application");
        return;
    }

    // The path we will receive is [host]/llapmonitor/llaphost/
    // We need to extract the llaphost to redirect the request
    String[] pathInfoSplits = servletRequest.getPathInfo().split("/");
    String llapHost = pathInfoSplits[1];

    //Now rewrite the URL
    StringBuffer urlBuf = new StringBuffer();//note: StringBuilder isn't supported by Matcher
    Matcher matcher = TEMPLATE_PATTERN.matcher(targetUriTemplate);
    if (matcher.find()) {
        matcher.appendReplacement(urlBuf, llapHost);
    }

    matcher.appendTail(urlBuf);
    String newTargetUri = urlBuf.toString();
    servletRequest.setAttribute(ATTR_TARGET_URI, newTargetUri);
    URI targetUriObj;
    try {
        targetUriObj = new URI(newTargetUri);
    } catch (Exception e) {
        throw new ServletException("Rewritten targetUri is invalid: " + newTargetUri, e);
    }
    servletRequest.setAttribute(ATTR_TARGET_HOST, URIUtils.extractHost(targetUriObj));

    super.service(servletRequest, servletResponse);
}

---

From source file:egpi.tes.ahv.servicio.AutenticacionREST.java

public void procesarError(HttpServletResponse response, Exception e) {
    System.out.println("\n\nprocesarError=" + e.getMessage() + "\n\n");
    try {/*from  www .j  av  a  2 s  . co  m*/
        if (status == 0) {
            response.sendError(500, e.getMessage());
        } else {
            response.sendError(status, e.getMessage());
        }
    } catch (IOException ex) {
        Logger.getLogger(AutenticacionREST.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

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