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) throws IOException;

Source Link

Document

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

Usage

From source file:com.haulmont.cuba.web.controllers.StaticContentController.java

@RequestMapping(method = RequestMethod.HEAD)
public String handleHeadRequest(HttpServletRequest request, HttpServletResponse response) throws IOException {
    try {/* ww  w .  jav  a  2s .c  o  m*/
        lookup(request).respondHead(request, response);
    } catch (UnsupportedOperationException e) {
        response.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
    }
    return null;
}

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From source file:com.bosch.cr.integration.helloworld.ProxyServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String auth = req.getHeader("Authorization");
    if (auth == null) {
        resp.setHeader("WWW-Authenticate", "BASIC realm=\"Proxy for Bosch IoT Things\"");
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return;/*  w w w.j  a  v a 2s  .co m*/
    }

    try {
        long time = System.currentTimeMillis();
        CloseableHttpClient c = getHttpClient();

        String targetUrl = URL_PREFIX + req.getPathInfo()
                + (req.getQueryString() != null ? ("?" + req.getQueryString()) : "");
        BasicHttpRequest targetReq = new BasicHttpRequest(req.getMethod(), targetUrl);

        String user = "";
        if (auth.toUpperCase().startsWith("BASIC ")) {
            String userpassDecoded = new String(
                    new sun.misc.BASE64Decoder().decodeBuffer(auth.substring("BASIC ".length())));
            user = userpassDecoded.substring(0, userpassDecoded.indexOf(':'));
            String pass = userpassDecoded.substring(userpassDecoded.indexOf(':') + 1);
            UsernamePasswordCredentials creds = new UsernamePasswordCredentials(user, pass);
            targetReq.addHeader(new BasicScheme().authenticate(creds, targetReq, null));
        }

        targetReq.addHeader("x-cr-api-token", req.getHeader("x-cr-api-token"));
        CloseableHttpResponse targetResp = c.execute(targetHost, targetReq);

        System.out.println("Request: " + targetHost + targetUrl + ", user " + user + " -> "
                + (System.currentTimeMillis() - time) + " msec: " + targetResp.getStatusLine());

        resp.setStatus(targetResp.getStatusLine().getStatusCode());
        targetResp.getEntity().writeTo(resp.getOutputStream());
    } catch (IOException | AuthenticationException ex) {
        throw new RuntimeException(ex);
    }
}

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From source file:com.commercehub.dropwizard.BuildInfoServlet.java

private void writeValueForKey(String requestedKey, HttpServletResponse response) throws IOException {
    String value = manifestAttributes.getProperty(requestedKey);
    if (StringUtils.isNotBlank(value)) {
        response.setContentType(MediaType.TEXT_PLAIN);
        response.getWriter().print(value);
    } else {//from  w ww  .ja v a 2  s .  c  om
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
    }
}

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From source file:com.bosch.cr.integration.hello_world_ui.ProxyServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String auth = req.getHeader("Authorization");
    if (auth == null) {
        resp.setHeader("WWW-Authenticate", "BASIC realm=\"Proxy for CR\"");
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return;/*from  w w  w  . j  a v a2 s.c  om*/
    }

    try {
        long time = System.currentTimeMillis();
        CloseableHttpClient c = getHttpClient();

        String targetUrl = URL_PREFIX + req.getPathInfo()
                + (req.getQueryString() != null ? ("?" + req.getQueryString()) : "");
        BasicHttpRequest targetReq = new BasicHttpRequest(req.getMethod(), targetUrl);

        String user = "";
        if (auth.toUpperCase().startsWith("BASIC ")) {
            String userpassDecoded = new String(
                    new sun.misc.BASE64Decoder().decodeBuffer(auth.substring("BASIC ".length())));
            user = userpassDecoded.substring(0, userpassDecoded.indexOf(':'));
            String pass = userpassDecoded.substring(userpassDecoded.indexOf(':') + 1);
            UsernamePasswordCredentials creds = new UsernamePasswordCredentials(user, pass);
            targetReq.addHeader(new BasicScheme().authenticate(creds, targetReq, null));
        }

        targetReq.addHeader("x-cr-api-token", req.getHeader("x-cr-api-token"));
        CloseableHttpResponse targetResp = c.execute(targetHost, targetReq);

        System.out.println("Request: " + targetHost + targetUrl + ", user " + user + " -> "
                + (System.currentTimeMillis() - time) + " msec: " + targetResp.getStatusLine());

        resp.setStatus(targetResp.getStatusLine().getStatusCode());
        targetResp.getEntity().writeTo(resp.getOutputStream());
    } catch (IOException | AuthenticationException ex) {
        throw new RuntimeException(ex);
    }
}

---

From source file:org.magnum.dataup.SimpleVideoSvcController.java

@RequestMapping(value = "/video/{id}/data", method = RequestMethod.GET)
HttpServletResponse getData(@PathVariable(value = "id") long id, HttpServletResponse response)
        throws IOException {
    //don't have the data: response.state == 404 
    videoFileManager = (null == videoFileManager) ? VideoFileManager.get() : videoFileManager;
    if (!videos.containsKey(id) || !videoFileManager.hasVideoData(videos.get(id))) {
        response.sendError(404);
        return response;
    }/* w  ww.  j a va  2s .c o  m*/

    //successful: response.state == 200
    videoFileManager.copyVideoData(videos.get(id), response.getOutputStream());
    response.setStatus(200);
    return response;
}

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From source file:com.bosch.cr.examples.inventorybrowser.server.ProxyServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String auth = req.getHeader("Authorization");
    if (auth == null) {
        resp.setHeader("WWW-Authenticate", "BASIC realm=\"Proxy for Bosch IoT Things\"");
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return;/*from w  w  w  .  ja  v  a 2  s.  c  o  m*/
    }

    try {
        long time = System.currentTimeMillis();
        CloseableHttpClient c = getHttpClient();

        String targetUrl = URL_PREFIX + req.getPathInfo()
                + (req.getQueryString() != null ? ("?" + req.getQueryString()) : "");
        BasicHttpRequest targetReq = new BasicHttpRequest(req.getMethod(), targetUrl);

        String user = "";
        if (auth.toUpperCase().startsWith("BASIC ")) {
            String userpassDecoded = new String(
                    new sun.misc.BASE64Decoder().decodeBuffer(auth.substring("BASIC ".length())));
            user = userpassDecoded.substring(0, userpassDecoded.indexOf(':'));
            String pass = userpassDecoded.substring(userpassDecoded.indexOf(':') + 1);
            UsernamePasswordCredentials creds = new UsernamePasswordCredentials(user, pass);
            targetReq.addHeader(new BasicScheme().authenticate(creds, targetReq, null));
        }

        targetReq.addHeader("x-cr-api-token", props.getProperty("apiToken"));
        CloseableHttpResponse targetResp = c.execute(targetHost, targetReq);

        System.out.println("Request: " + targetHost + targetUrl + ", user " + user + " -> "
                + (System.currentTimeMillis() - time) + " msec: " + targetResp.getStatusLine());

        resp.setStatus(targetResp.getStatusLine().getStatusCode());
        targetResp.getEntity().writeTo(resp.getOutputStream());

    } catch (IOException | AuthenticationException ex) {
        throw new RuntimeException(ex);
    }
}

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From source file:com.thinkberg.webdav.PropPatchHandler.java

/**
 * Handle a PROPPATCH request.//from ww w .  j  a v a 2 s.c o m
 *
 * @param request  the servlet request
 * @param response the servlet response
 * @throws IOException if there is an error that cannot be handled normally
 */
public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {
    FileObject object = VFSBackend.resolveFile(request.getPathInfo());

    try {
        if (!LockManager.getInstance().evaluateCondition(object, getIf(request)).result) {
            response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED);
            return;
        }
    } catch (LockException e) {
        response.sendError(SC_LOCKED);
        return;
    } catch (ParseException e) {
        response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED);
        return;
    }

    if (object.exists()) {
        SAXReader saxReader = new SAXReader();
        try {
            Document propDoc = saxReader.read(request.getInputStream());
            logXml(propDoc);

            Element propUpdateEl = propDoc.getRootElement();
            List<Element> requestedProperties = new ArrayList<Element>();
            for (Object elObject : propUpdateEl.elements()) {
                Element el = (Element) elObject;
                String command = el.getName();
                if (AbstractDavResource.TAG_PROP_SET.equals(command)
                        || AbstractDavResource.TAG_PROP_REMOVE.equals(command)) {
                    for (Object propElObject : el.elements()) {
                        for (Object propNameElObject : ((Element) propElObject).elements()) {
                            Element propNameEl = (Element) propNameElObject;
                            requestedProperties.add(propNameEl);
                        }
                    }
                }
            }

            // respond as XML encoded multi status
            response.setContentType("text/xml");
            response.setCharacterEncoding("UTF-8");
            response.setStatus(SC_MULTI_STATUS);

            Document multiStatusResponse = getMultiStatusResponse(object, requestedProperties,
                    getBaseUrl(request));

            logXml(multiStatusResponse);

            // write the actual response
            XMLWriter writer = new XMLWriter(response.getWriter(), OutputFormat.createCompactFormat());
            writer.write(multiStatusResponse);
            writer.flush();
            writer.close();

        } catch (DocumentException e) {
            LOG.error("invalid request: " + e.getMessage());
            response.sendError(HttpServletResponse.SC_BAD_REQUEST);
        }
    } else {
        LOG.error(object.getName().getPath() + " NOT FOUND");
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
    }
}

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From source file:cz.incad.kramerius.client.CacheServlet.java

private void proccesRequest(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {
    String action = req.getParameter("action");
    resp.setContentType("text/plain;charset=utf-8");
    if ("save".equals(action)) {
        saveToFile(req, resp);//from   w  w  w . ja  va 2 s .c  om
    } else if ("get".equals(action)) {
        loadFromFile(req, resp);
    } else {
        resp.sendError(HttpServletResponse.SC_BAD_REQUEST);
    }
}

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From source file:com.haulmont.cuba.restapi.FileUploadController.java

protected FileDescriptor getFileDescriptor(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    String name = request.getParameter("name");
    if (name == null) {
        log.error("'name' request parameter is not specified");
        response.sendError(HttpServletResponse.SC_BAD_REQUEST);
        return null;
    }/*  w w  w.j  a va  2 s  .c  om*/

    String ext = request.getParameter("ext");
    if (ext == null) {
        log.error("'ext' request parameter is not specified");
        response.sendError(HttpServletResponse.SC_BAD_REQUEST);
        return null;
    }

    String size = request.getParameter("size");

    FileDescriptor fd = metadata.create(FileDescriptor.class);
    fd.setName(name);
    fd.setExtension(ext);
    fd.setCreateDate(timeSource.currentTimestamp());
    if (size != null) {
        fd.setSize(Long.parseLong(size));
    }

    return fd;
}

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From source file:fr.univlille2.ecm.drive.BasicDriveAuthenticator.java

public Boolean handleLoginPrompt(HttpServletRequest httpRequest, HttpServletResponse httpResponse,
        String baseURL) {//from ww w  .  j  a  v a 2 s . c  o  m
    logger.debug(BasicDriveAuthenticator.class.getSimpleName() + " : handleLoginPrompt");
    try {
        String baHeader = "Basic realm=\"" + realmName + '\"';
        httpResponse.addHeader(BA_HEADER_NAME, baHeader);
        httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return true;
    } catch (IOException e) {
        return false;
    }
}

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