Example usage for javax.servlet.http HttpServletResponse addHeader

List of usage examples for javax.servlet.http HttpServletResponse addHeader

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Introduction

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

Prototype

public void addHeader(String name, String value);

Source Link

Document

Adds a response header with the given name and value.

Usage

From source file:it.cilea.osd.jdyna.web.controller.ExportConfigurazioneSoggettari.java

/**
 * Esporta la configurazione corrente di tutti i soggettari o,
 * se la request contiene un soggettario_id, solo il soggettario con
 * quell'ID specifico.//  w w  w  .j  av a 2s .c  o m
 * 
 */
@Override
protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object object,
        BindException errors) throws RuntimeException, IOException {
    String soggettarioIDStr = request.getParameter("soggettario_id");
    Integer soggettarioID = null;
    if (soggettarioIDStr != null) {
        soggettarioID = Integer.parseInt(soggettarioIDStr);
    }
    Soggettario soggettario = null;
    if (soggettarioID != null) {
        soggettario = applicationService.get(Soggettario.class, soggettarioID);
    }

    String filename;
    if (soggettario == null) {
        filename = "configurazione-soggettari.xml";
    } else {
        filename = "configurazione-soggettario_" + soggettario.getNome().replaceAll(" ", "_") + ".xml";
    }
    response.setContentType("application/xml");
    response.addHeader("Content-Disposition", "attachment; filename=" + filename);

    PrintWriter writer = response.getWriter();
    writer.print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
            + "<!DOCTYPE beans PUBLIC \"-//SPRING//DTD BEAN//EN\"\n"
            + "\"http://www.springframework.org/dtd/spring-beans.dtd\">\n\n\n");
    writer.print("<beans>\n");
    writer.print("   <!-- Configurazioni per il tool di import (NON MODIFICARE) -->\n");
    writer.print(
            "      <bean id=\"customEditorConfigurer\" class=\"org.springframework.beans.factory.config.CustomEditorConfigurer\">\n");
    writer.print("         <property name=\"customEditors\">\n");
    writer.print("              <map>\n");
    writer.print("               <entry key=\"it.cilea.osd.jdyna.model.Soggettario\">\n");
    writer.print("                    <ref bean=\"configurazioneSoggettarioEditor\"/>\n");
    writer.print("                </entry>\n");
    writer.print("             </map>\n");
    writer.print("          </property>\n");
    writer.print("       </bean>\n");

    if (soggettario != null) {
        toXML(writer, soggettario);
    } else {
        List<Soggettario> allSoggettari = applicationService.getList(Soggettario.class);
        for (Soggettario soggettarioIter : allSoggettari) {
            toXML(writer, soggettarioIter);
        }
    }
    response.getWriter().print("</beans>");
    return null;
}

From source file:ua.com.manometer.jasperreports.AbstractJasperReportsView.java

/**
 * Populates the headers in the <code>HttpServletResponse</code> with the
 * headers supplied by the user.//ww w .  ja v a2  s .  c om
 */
private void populateHeaders(HttpServletResponse response) {
    // Apply the headers to the response.
    for (Enumeration en = this.headers.propertyNames(); en.hasMoreElements();) {
        String key = (String) en.nextElement();
        response.addHeader(key, this.headers.getProperty(key));
    }
}

From source file:com.mirantis.cachemod.filter.CacheFilter.java

public void writeCacheToResponse(CacheEntry cacheEntry, ServletResponse response, boolean fragment)
        throws IOException {

    if (cacheEntry.getContentType() != null) {
        response.setContentType(cacheEntry.getContentType());
    }/*from  w  w  w . j  a v a 2  s . com*/

    if (!fragment) {

        if (response instanceof HttpServletResponse) {
            HttpServletResponse httpResponse = (HttpServletResponse) response;

            if (cacheEntry.getLastModified() != -1) {
                httpResponse.setDateHeader("Last-Modified", cacheEntry.getLastModified());
            }

            if (cacheEntry.getExpires() != Long.MAX_VALUE) {
                httpResponse.setDateHeader("Expires", cacheEntry.getExpires());
            }

            if (cacheEntry.getMaxAge() != -1) {
                if (cacheEntry.getMaxAge() < 0) { // set max-age based on life time
                    long currentMaxAge = -cacheEntry.getMaxAge() / 1000 - System.currentTimeMillis() / 1000;
                    if (currentMaxAge < 0) {
                        currentMaxAge = 0;
                    }
                    httpResponse.addHeader("Cache-Control", "max-age=" + currentMaxAge);
                } else {
                    httpResponse.addHeader("Cache-Control", "max-age=" + cacheEntry.getMaxAge());
                }
            }

        }
    }

    if (cacheEntry.getLocale() != null) {
        response.setLocale(cacheEntry.getLocale());
    }

    OutputStream out = new BufferedOutputStream(response.getOutputStream());
    response.setContentLength(cacheEntry.getContent().length);
    out.write(cacheEntry.getContent());
    out.flush();
}

From source file:com.monarchapis.driver.authentication.AuthenticatorV1Impl.java

/**
 * Prepares an authentication request and sends it to the Service API.
 * Response headers are added the API response.
 * //www .ja v a  2  s  . co m
 * @param requestWeight
 *            The request weight to count in rate limiting
 * @return the authentication response.
 */
private AuthenticationResponse processAuthentication(BigDecimal requestWeight) {
    ApiRequest apiRequest = ApiRequest.getCurrent();
    HttpServletResponse httpResponse = HttpResponseHolder.getCurrent();

    AuthenticationRequest authRequest = prepareAuthenticationRequest(apiRequest);
    authRequest.setRequestWeight(Optional.of(requestWeight.floatValue()));

    SecurityResource security = serviceApi.getSecurityResource();
    long begin = System.currentTimeMillis();
    AuthenticationResponse authResponse = security.authenticateRequest(authRequest);
    long duration = System.currentTimeMillis() - begin;
    logger.debug("authentication took {}ms", duration);

    if (authResponse.getResponseHeaders() != null) {
        for (HttpHeader header : authResponse.getResponseHeaders()) {
            httpResponse.addHeader(header.getName(), header.getValue());
        }
    }

    return authResponse;
}

From source file:de.betterform.agent.web.resources.ResourceServlet.java

/**
 * set the caching headers for the resource response. Caching can be disabled by adding and init-param
 * of 'caching' with value 'false' to web.xml
 *
 * @param request  the http servlet request
 * @param response the http servlet response
 *//*from   ww w  .ja v  a 2  s  .  c o  m*/
protected void setCaching(HttpServletRequest request, HttpServletResponse response) {
    long now = System.currentTimeMillis();
    if (caching) {
        response.setHeader("Cache-Control", "max-age=3600, public");
        response.setDateHeader("Date", now);
        response.setDateHeader("Expires", now + this.oneYear);
        response.setDateHeader("Last-Modified", this.getLastModifiedValue());
    } else {
        // Set to expire far in the past.
        response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
        // Set standard HTTP/1.1 no-cache headers.
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");
        // Set standard HTTP/1.0 no-cache header.
        response.setHeader("Pragma", "no-cache");
    }
}

From source file:com.hmsinc.epicenter.webapp.data.DownloadService.java

/**
 * @param request/* ww  w  .j a va2s  .co m*/
 * @param response
 * @throws IOException
 */
@Transactional(readOnly = true)
@RequestMapping(value = "/download/cases", method = RequestMethod.POST)
public void downloadCases(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException {

    final AnalysisParametersDTO queryParams = bind(request);
    final AnalysisParameters params = convertParameters(queryParams);
    logger.debug(params.toString());

    SpatialSecurity.checkAggregateOnlyAccess(getPrincipal(), params.getContainer());

    final String filename = new StringBuilder("cases-").append(params.getContainer().getName()).append("-")
            .append(FILE_TIMESTAMP_FORMAT.print(params.getStartDate())).append("-")
            .append(FILE_TIMESTAMP_FORMAT.print(params.getEndDate())).append(".csv").toString();

    response.setContentType(CONTENT_TYPE);
    response.addHeader("cache-control", "must-revalidate");
    response.addHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");

    final OutputStream stream = response.getOutputStream();
    final CSVPrinter csv = new CSVPrinter(stream);

    final String[] header = new String[] { "Interaction Date", "Age", "Gender", "Zipcode", "Facility",
            "Visit Number", "Reason", "Classifications" };
    csv.println(header);

    // Stream the file to the client by paging thru the database
    long offset = 0;
    final Long size = analysisRepository.getCasesCount(params);

    while (offset <= size) {

        final Collection<? extends Interaction> admits = analysisRepository.getCases(params, offset, PAGE_SIZE);

        for (Interaction a : admits) {

            final StringBuilder clz = new StringBuilder();
            for (Classification cc : a.getClassifications()) {
                if (params.getClassifications() == null || params.getClassifications().size() == 0
                        || params.getClassifications().contains(cc)) {
                    if (clz.length() > 0) {
                        clz.append(", ");
                    }
                    clz.append(cc.getCategory());
                }
            }

            if (params.getClassifications() == null || params.getClassifications().size() == 0
                    || clz.length() > 0) {

                String reason = null;
                if (a instanceof Registration) {
                    reason = ((Registration) a).getReason();
                }

                String visitNumber = null;
                if (a instanceof CodedVisit) {
                    visitNumber = ((CodedVisit) a).getVisitNumber();
                }

                final String[] entry = new String[] { DATE_FORMAT.print(a.getInteractionDate()),
                        ObjectUtils.toString(a.getAgeAtInteraction()),
                        a.getPatientDetail().getGender() == null ? ""
                                : a.getPatientDetail().getGender().getAbbreviation(),
                        ObjectUtils.toString(a.getPatientDetail().getZipcode()),
                        filterFacility(a.getPatient().getFacility()), ObjectUtils.toString(visitNumber),
                        ObjectUtils.toString(reason), ObjectUtils.toString(clz) };

                csv.println(entry);

                // Evict the object from the cache since we're done with it.
                analysisRepository.evict(a);

            }

        }

        stream.flush();

        offset = offset + PAGE_SIZE;
    }

    stream.flush();

}

From source file:edu.stanford.muse.webapp.JSPHelper.java

/**
 * makes the page un$able. warning: must be called before any part of the
 * response body is committed//  www .  ja  v a 2s .c o  m
 */
public static void setPageUncacheable(HttpServletResponse response) {
    // see http://stackoverflow.com/questions/5139785/how-to-prevent-the-result-of-servlets-from-being-cached
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Expires", "-1");

    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");

    // Set standard HTTP/1.0 no-cache header.
    response.setDateHeader("Expires", 0); //prevent caching at the proxy server
}

From source file:airlift.servlet.rest.RestServlet.java

@Override
protected final void doHead(HttpServletRequest _httpServletRequest, HttpServletResponse _httpServletResponse)
        throws ServletException, IOException {
    _httpServletResponse.addHeader("Access-Control-Allow-Origin", "*");
    _httpServletResponse.addHeader("Access-Control-Allow-Headers",
            "Content-Type, Depth, User-Agent, X-File-Size, X-Requested-With, If-Modified-Since, X-File-Name, Cache-Control");
    _httpServletResponse.addHeader("Access-Control-Max-Age", "86400");
    _httpServletResponse.addHeader("Access-Control-Allow-Methods",
            "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS");

    super.doHead(_httpServletRequest, _httpServletResponse);
}

From source file:airlift.servlet.rest.RestServlet.java

@Override
protected final void doTrace(HttpServletRequest _httpServletRequest, HttpServletResponse _httpServletResponse)
        throws ServletException, IOException {
    _httpServletResponse.addHeader("Access-Control-Allow-Origin", "*");
    _httpServletResponse.addHeader("Access-Control-Allow-Headers",
            "Content-Type, Depth, User-Agent, X-File-Size, X-Requested-With, If-Modified-Since, X-File-Name, Cache-Control");
    _httpServletResponse.addHeader("Access-Control-Max-Age", "86400");
    _httpServletResponse.addHeader("Access-Control-Allow-Methods",
            "GET, HEAD, POST, PUT, DELETE, TRACE, OPTIONS");

    super.doTrace(_httpServletRequest, _httpServletResponse);
}

From source file:SendXml.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    //get the 'file' parameter
    String fileName = (String) request.getParameter("file");
    if (fileName == null || fileName.equals(""))
        throw new ServletException("Invalid or non-existent file parameter in SendXml servlet.");

    // add the .doc suffix if it doesn't already exist
    if (fileName.indexOf(".xml") == -1)
        fileName = fileName + ".xml";

    String xmlDir = getServletContext().getInitParameter("xml-dir");
    if (xmlDir == null || xmlDir.equals(""))
        throw new ServletException("Invalid or non-existent xmlDir context-param.");

    ServletOutputStream stream = null;/*from  www  .  j  ava2  s . c o m*/
    BufferedInputStream buf = null;
    try {

        stream = response.getOutputStream();
        File xml = new File(xmlDir + "/" + fileName);
        response.setContentType("text/xml");
        response.addHeader("Content-Disposition", "attachment; filename=" + fileName);

        response.setContentLength((int) xml.length());
        FileInputStream input = new FileInputStream(xml);
        buf = new BufferedInputStream(input);
        int readBytes = 0;
        while ((readBytes = buf.read()) != -1)
            stream.write(readBytes);
    } catch (IOException ioe) {
        throw new ServletException(ioe.getMessage());
    } finally {
        if (stream != null)
            stream.close();
        if (buf != null)
            buf.close();
    }
}