Example usage for javax.servlet ServletResponse getOutputStream

Introduction

In this page you can find the example usage for javax.servlet ServletResponse getOutputStream.

Prototype

public ServletOutputStream getOutputStream() throws IOException;

Source Link

Document

Returns a ServletOutputStream suitable for writing binary data in the response.

Usage

From source file:ar.com.zauber.commons.web.filter.JSONPRequestFilter.java

/**
 * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,
 *      javax.servlet.ServletResponse, javax.servlet.FilterChain)
 *//* w ww  . j av a 2 s.c om*/
public final void doFilter(final ServletRequest request, final ServletResponse response,
        final FilterChain chain) throws IOException, ServletException {
    if (!(request instanceof HttpServletRequest)) {
        throw new ServletException("This filter can " + " only process HttpServletRequest requests");
    }

    final HttpServletRequest httpRequest = (HttpServletRequest) request;
    final String callback = httpRequest.getParameter(callbackParameterName);

    if (StringUtils.isNotBlank(callback) && acceptsJSONP(httpRequest)) {
        ServletOutputStream out = response.getOutputStream();
        out.print(callback + "(");
        chain.doFilter(request, response);
        out.print(");");
        response.setContentType(responseContentType);
    } else {
        chain.doFilter(request, response);
    }
}

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From source file:com.iisigroup.cap.component.impl.FileDownloadResult.java

public void respondResult(ServletResponse response) {
    InputStream in = null;/*from   w  w w  .  j a  v  a 2 s .  c  om*/
    OutputStream output = null;
    try {
        response.setContentType(_contentType);
        if (_outputName != null && response instanceof HttpServletResponse) {
            HttpServletResponse resp = (HttpServletResponse) response;
            resp.setHeader("Content-Disposition", "attachment;filename=\"" + _outputName + "\"");
            resp.setHeader("Cache-Control", "public");
            resp.setHeader("Pragma", "public");
        }
        output = response.getOutputStream();
        File file = new File(_file);
        int length = -1;
        // Stream to the requester.
        byte[] bbuf = new byte[1024 * 1024];
        int len = 0;
        in = new FileInputStream(file);
        while ((in != null) && ((length = in.read(bbuf)) != -1)) {
            output.write(bbuf, 0, length);
            len += length;
        }
        response.setContentLength(len);
        output.flush();
    } catch (Exception e) {
        throw new CapException(e, getClass());
    } finally {
        IOUtils.closeQuietly(in);
        IOUtils.closeQuietly(output);
    }

}

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From source file:com.metamesh.opencms.rfs.RfsAwareDumpLoader.java

/**
 * @see org.opencms.loader.I_CmsResourceLoader#service(org.opencms.file.CmsObject, org.opencms.file.CmsResource, javax.servlet.ServletRequest, javax.servlet.ServletResponse)
 *//*from  ww w . j a  v  a  2  s  .  c o  m*/
public void service(CmsObject cms, CmsResource resource, ServletRequest req, ServletResponse res)
        throws CmsException, IOException {

    if (resource instanceof RfsCmsResource) {
        RfsCmsResource rfsFile = (RfsCmsResource) resource;
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(rfsFile.getRfsFile());
            byte[] buffy = new byte[4096];
            int bytesRead;
            while ((bytesRead = fis.read(buffy)) >= 0) {
                res.getOutputStream().write(buffy, 0, bytesRead);
                res.getOutputStream().flush();
            }
        } finally {
            if (fis != null) {
                fis.close();
            }
        }
    } else {
        super.service(cms, resource, req, res);
    }
}

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From source file:de.micromata.genome.gwiki.page.gspt.ServletStandalonePageContext.java

@Override
public void initialize(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL,
        boolean needsSession, int bufferSize, boolean autoFlush)
        throws IOException, IllegalStateException, IllegalArgumentException {

    this.request = (HttpServletRequest) request;
    this.response = (HttpServletResponse) response;
    this.servlet = (HttpServlet) servlet;
    PrintWriterPatched pout = new PrintWriterPatched(response.getOutputStream());
    GspJspWriter gsptWriter = new GspJspWriter(pout);
    this.writer = gsptWriter;
    this.servletCtx = this.servlet.getServletContext();
    this.session = this.request.getSession(false);

    this.resolver = new VariableResolver() {

        public Object resolveVariable(String key) throws ELException {
            return findAttribute(key);
        }//from   w  ww.j  a v a  2s.  com

    };
}

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From source file:org.artifactory.webapp.servlet.ArtifactoryFilter.java

@Override
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
        throws IOException, ServletException {
    // Redirect or forward if need
    for (RedirectionHandler redirectionHandler : redirectionHandlers) {
        if (redirectionHandler.shouldRedirect(request)) {
            redirectionHandler.redirect(request, response);
            return;
        }//from   www  . j a  va  2 s  .  c  om
    }
    if (filterConfig.getServletContext().getAttribute(DelayedInit.APPLICATION_CONTEXT_LOCK_KEY) != null) {
        String requestURI = ((HttpServletRequest) request).getRequestURI();
        if (requestURI.endsWith("artifactory-splash.gif")) {
            ((HttpServletResponse) response).setStatus(200);
            ServletOutputStream out = response.getOutputStream();
            ResourceUtils.copyResource("/artifactory-splash.gif", out, null, getClass());
            return;
        }
        response.setContentType("text/html");
        ((HttpServletResponse) response).setStatus(HttpStatus.SC_SERVICE_UNAVAILABLE);
        ServletOutputStream out = response.getOutputStream();
        ResourceUtils.copyResource("/startup.html", out, null, getClass());
        return;
    }
    try {
        ServletContext servletContext = filterConfig.getServletContext();
        ArtifactoryContext context = RequestUtils.getArtifactoryContext(servletContext);
        if (context == null) {
            respondFailedToInitialize(response);
            return;
        }
        bind(context);
        if (response instanceof HttpServletResponse) {
            HttpServletResponse httpResponse = (HttpServletResponse) response;
            if (!httpResponse.containsHeader("Server")) {
                //Add the server header (curl -I http://localhost:8080/artifactory/)
                httpResponse.setHeader("Server", HttpUtils.getArtifactoryUserAgent());
            }

            // set the Artifactory instance id header
            String hostId = ContextHelper.get().beanForType(AddonsManager.class)
                    .addonByType(HaCommonAddon.class).getHostId();
            httpResponse.setHeader(ArtifactoryResponse.ARTIFACTORY_ID, hostId);

            String serverId = ContextHelper.get().getServerId();
            if (StringUtils.isNotBlank(serverId) && !HaCommonAddon.ARTIFACTORY_PRO.equals(serverId)) {
                httpResponse.setHeader(HaCommonAddon.ARTIFACTORY_NODE_ID, serverId);
            }
        }
        chain.doFilter(request, response);
    } finally {
        unbind();
    }
}

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From source file:io.scigraph.services.jersey.dynamic.SwaggerFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    // Capture the output of the filter chain
    ByteArrayResponseWrapper wrappedResp = new ByteArrayResponseWrapper((HttpServletResponse) response);
    chain.doFilter(request, wrappedResp);
    if (isGzip(request)) {
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                GZIPInputStream gis = new GZIPInputStream(is);
                ByteArrayOutputStream bs = new ByteArrayOutputStream();
                GZIPOutputStream gzos = new GZIPOutputStream(bs)) {
            byte[] newApi = writeDynamicResource(gis);
            gzos.write(newApi);/*from   w ww. ja  va  2 s .  c  o  m*/
            gzos.close();
            byte[] output = bs.toByteArray();
            response.setContentLength(output.length);
            response.getOutputStream().write(output);
        }
    } else {
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                ByteArrayOutputStream bs = new ByteArrayOutputStream()) {
            byte[] newApi = writeDynamicResource(is);
            response.setContentLength(newApi.length);
            response.getOutputStream().write(newApi);
        }

    }
}

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From source file:edu.sdsc.scigraph.services.jersey.dynamic.SwaggerFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    boolean gzip = isGzip(request);

    // Capture the output of the filter chain
    ByteArrayResponseWrapper wrappedResp = new ByteArrayResponseWrapper((HttpServletResponse) response);
    chain.doFilter(request, wrappedResp);
    if (gzip) {// w w w.ja  v a 2 s  . co m
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                GZIPInputStream gis = new GZIPInputStream(is);
                ByteArrayOutputStream bs = new ByteArrayOutputStream();
                GZIPOutputStream gzos = new GZIPOutputStream(bs)) {
            byte[] newApi = writeDynamicResource(gis);
            gzos.write(newApi);
            gzos.close();
            byte[] output = bs.toByteArray();
            response.setContentLength(output.length);
            response.getOutputStream().write(output);
        }
    } else {
        try (InputStream is = new ByteArrayInputStream(wrappedResp.getBytes());
                ByteArrayOutputStream bs = new ByteArrayOutputStream()) {
            byte[] newApi = writeDynamicResource(is);
            response.setContentLength(newApi.length);
            response.getOutputStream().write(newApi);
        }

    }
}

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From source file:edu.harvard.hms.dbmi.bd2k.irct.cl.filter.SessionFilter.java

@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain fc)
        throws IOException, ServletException {

    // Calls to the Security Service can go straight through
    if (!((HttpServletRequest) req).getPathInfo().startsWith("/securityService/")) {
        //Get the session and user information
        HttpSession session = ((HttpServletRequest) req).getSession();
        User user = (User) session.getAttribute("user");

        // Is a user already associated with a session?
        if (user == null) {

            // If no user is associated then validate the authorization
            // header
            String email = validateAuthorizationHeader((HttpServletRequest) req);

            if (email == null) {
                ((HttpServletResponse) res).setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                res.getOutputStream().write("{\"message\":\"Session is not authorized\"}".getBytes());
                res.getOutputStream().close();
                return;
            }/*from ww w. jav a 2 s .co  m*/

            user = sc.getUser(email);
            Token token = new JWT(((HttpServletRequest) req).getHeader("Authorization"), "", "Bearer",
                    this.clientId);
            SecureSession secureSession = new SecureSession();
            secureSession.setToken(token);
            secureSession.setUser(user);

            session.setAttribute("user", user);
            session.setAttribute("token", token);
            session.setAttribute("secureSession", secureSession);

        }
    } else {
        String name = validateAuthorizationHeader((HttpServletRequest) req);

        if (name != null) {
            HttpSession session = ((HttpServletRequest) req).getSession();

            User user = sc.getUser(name);
            Token token = new JWT(((HttpServletRequest) req).getHeader("Authorization"), "", "Bearer",
                    this.clientId);
            SecureSession secureSession = new SecureSession();
            secureSession.setToken(token);
            secureSession.setUser(user);

            session.setAttribute("user", user);
            session.setAttribute("token", token);
            session.setAttribute("secureSession", secureSession);
        }

    }

    fc.doFilter(req, res);
}

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From source file:org.openrepose.filters.translation.TranslationFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    if (!isInitialized) {
        LOG.error(//from   w  w  w.j a  va2  s  . com
                "Filter has not yet initialized... Please check your configuration files and your artifacts directory.");
        ((HttpServletResponse) response).sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
    } else {
        HttpServletRequestWrapper requestWrapper = new HttpServletRequestWrapper((HttpServletRequest) request);
        HttpServletResponseWrapper responseWrapper = new HttpServletResponseWrapper(
                (HttpServletResponse) response, MUTABLE, MUTABLE, response.getOutputStream());

        final HandleRequestResult handleRequestResult = handleRequest(requestWrapper, responseWrapper);
        HttpServletRequestWrapper handleRequestWrapper = handleRequestResult.getRequest();
        HttpServletResponseWrapper handleResponseWrapper = handleRequestResult.getResponse();

        switch (handleRequestResult.getFilterAction()) {
        case NOT_SET:
            chain.doFilter(request, response);
            break;
        case PASS:
            chain.doFilter(handleRequestWrapper, handleResponseWrapper);
            handleResponseWrapper.commitToResponse();
            break;
        case PROCESS_RESPONSE:
            chain.doFilter(handleRequestWrapper, handleResponseWrapper);
            handleResponse(handleRequestWrapper, handleResponseWrapper);
            handleResponseWrapper.commitToResponse();
            break;
        case RETURN:
            break;
        }
    }
}

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From source file:de.thorstenberger.taskmodel.view.webapp.filter.ExportPDFFilter.java

/**
 * Render the given xhtml document as pdf and write it to the response outputstream.
 *
 * @param dom//  w ww  .  java  2s  .c o m
 *            xhtml document
 * @param request
 * @param response
 * @throws IOException
 *             if the document could not get renderered
 */
private void renderPdf(final Document dom, final HttpServletRequest request, final ServletResponse response)
        throws IOException {
    final ITextRenderer renderer = new ITextRenderer(80 / 3f, 15);
    if (fontPath != null) {
        try {
            log.debug("Using unicode font at path " + fontPath);
            renderer.getFontResolver().addFont(fontPath, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
        } catch (DocumentException e1) {
            e1.printStackTrace();
        }
    }
    renderer.setDocument(dom, getLocalURL(request));
    renderer.layout();

    response.setContentType("application/pdf");
    // set an appropriate filename
    ((HttpServletResponse) response).setHeader("Content-Disposition",
            "attachment; filename=" + request.getParameter(EXPORTFILENAME));

    try {
        renderer.createPDF(response.getOutputStream());
    } catch (final DocumentException e) {
        log.error("Could not render pdf.", e);
        // FIXME should we just return the original content?
        throw new IOException(e.getMessage());
    }
}

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