Example usage for javax.servlet.http HttpServletResponse getOutputStream

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse 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:com.stratelia.webactiv.servlets.OnlineFileServer.java

/**
 * This method writes the result of the preview action.
 * @param res - The HttpServletResponse where the html code is write
 * @param htmlFilePath - the canonical path of the html document generated by the parser tools. if
 * this String is null that an exception had been catched the html document generated is empty !!
 * also, we display a warning html page// ww w.  j av  a 2s  .  co  m
 */
private void display(HttpServletResponse res, String htmlFilePath) throws IOException {
    OutputStream out2 = res.getOutputStream();
    int read;
    BufferedInputStream input = null; // for the html document generated
    SilverTrace.info("peasUtil", "OnlineFileServer.display()", "root.MSG_GEN_ENTER_METHOD",
            " htmlFilePath " + htmlFilePath);
    try {
        input = new BufferedInputStream(new FileInputStream(htmlFilePath));
        read = input.read();
        SilverTrace.info("peasUtil", "OnlineFileServer.display()", "root.MSG_GEN_ENTER_METHOD",
                " BufferedInputStream read " + read);
        if (read == -1) {
            displayWarningHtmlCode(res);
        } else {
            while (read != -1) {
                out2.write(read); // writes bytes into the response
                read = input.read();
            }
        }
    } catch (Exception e) {
        SilverTrace.warn("peasUtil", "OnlineFileServer.doPost", "root.EX_CANT_READ_FILE",
                "file name=" + htmlFilePath);
        displayWarningHtmlCode(res);
    } finally {
        SilverTrace.info("peasUtil", "OnlineFileServer.display()", "", " finally ");
        // we must close the in and out streams
        try {
            if (input != null) {
                input.close();
            }
            out2.close();
        } catch (Exception e) {
            SilverTrace.warn("peasUtil", "OnlineFileServer.display", "root.EX_CANT_READ_FILE", "close failed");
        }
    }
}

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From source file:fr.putnami.pwt.plugin.ajaxbot.controller.SiteMapController.java

@RequestMapping(value = "/sitemap.txt", method = RequestMethod.GET)
public void welcomePage(HttpServletResponse response) {
    try {/*from   www.  ja  v a2s.  com*/
        InputStream is = new FileInputStream(sitemap);
        response.setContentType("text/plain");
        response.setContentLength((int) sitemap.length());
        IOUtils.copy(is, response.getOutputStream());
        response.flushBuffer();
    } catch (IOException ex) {
        throw new RuntimeException("IOError writing file to output stream", ex);
    }
}

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From source file:annis.gui.servlets.ResourceServlet.java

@Override
@SuppressWarnings("unchecked")
public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    OutputStream outStream = response.getOutputStream();

    String completePath = request.getPathInfo();

    if (completePath == null) {
        response.sendError(404, "must provide a valid and existing path with a vistype");
        return;//from w w  w .j  a  va2s .co m
    }

    // remove trailing /
    completePath = completePath.substring(1);

    String[] pathComponents = completePath.split("/");

    String vistype = pathComponents[0];

    if (pathComponents.length < 2) {
        response.sendError(404, "must provide a valid and existing path");
        return;
    }

    String path = StringUtils.join(Arrays.copyOfRange(pathComponents, 1, pathComponents.length), "/");

    // get the visualizer for this vistype
    ResourcePlugin vis = resourceRegistry.get(vistype);
    if (vis == null) {
        response.sendError(500, "There is no resource with the short name " + vistype);
    } else if (path.endsWith(".class")) {
        response.sendError(403, "illegal class path access");
    } else {
        URL resource = vis.getClass().getResource(path);
        if (resource == null) {
            response.sendError(404, path + " not found");
        } else {
            // check if it is new
            URLConnection resourceConnection = resource.openConnection();
            long resourceLastModified = resourceConnection.getLastModified();
            long requestLastModified = request.getDateHeader("If-Modified-Since");
            if (requestLastModified != -1 && resourceLastModified <= requestLastModified) {
                response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
            } else {
                response.addDateHeader("Last-Modified", resourceLastModified);
                if ("localhost".equals(request.getServerName())) {
                    // does always expire right now
                    response.addDateHeader("Expires", new Date().getTime());
                } else {
                    // expires in one minute per default
                    response.addDateHeader("Expires", new Date().getTime() + 60000);
                }
                // not in cache, stream out
                String mimeType = getServletContext().getMimeType(path);
                response.setContentType(mimeType);
                if (mimeType.startsWith("text/")) {
                    response.setCharacterEncoding("UTF-8");
                }
                OutputStream bufferedOut = new BufferedOutputStream(outStream);
                InputStream resourceInStream = new BufferedInputStream(resource.openStream());

                try {
                    int v = -1;
                    while ((v = resourceInStream.read()) != -1) {
                        bufferedOut.write(v);
                    }
                } finally {
                    resourceInStream.close();
                    bufferedOut.flush();
                    outStream.flush();
                }
            }
        }
    }

}

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From source file:com.meltmedia.cadmium.servlets.ErrorPageFilterSelectionTest.java

/**
 * Calls doFilter on the ErrorPageFilter, capturing the output.  The output is compared to the expected output.
 * /*from   w  w  w.  j  ava  2s  .c om*/
 * @throws IOException if there is an error in the test.
 * @throws ServletException if there is an error in the test.
 */
@Test
public void testFilterChainError() throws IOException, ServletException {
    final ByteArrayOutputStream resultWriter = new ByteArrayOutputStream();

    // Return the result writer for output.
    HttpServletResponse response = mock(HttpServletResponse.class);
    when(response.getOutputStream()).thenReturn(new ServletOutputStream() {
        @Override
        public void write(int i) throws IOException {
            resultWriter.write(i);
        }
    });
    HttpServletRequest request = mock(HttpServletRequest.class);
    when(request.getRequestURI()).thenReturn(pathInfo);
    // act
    filter.doFilter(request, response, chain);

    // assert
    assertEquals("The wrong error content was returned.", expectedContent, resultWriter.toString());
}

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From source file:com.yunmel.syncretic.utils.io.IOUtils.java

/**
 * /* w w  w .j a v  a 2 s. c  om*/
 * 
 * @param filePath 
 * @param fileName ??
 * @param inline ??
 * @throws Exception
 */
public static void downloadFile(HttpServletResponse response, File file, String fileName, boolean inline)
        throws Exception {

    OutputStream outp = null;
    FileInputStream br = null;
    int len = 0;
    try {
        br = new FileInputStream(file);
        response.reset();
        outp = response.getOutputStream();
        outp.flush();
        response.setContentType("application/octet-stream");
        response.setContentLength((int) file.length());
        String header = (inline ? "inline" : "attachment") + ";filename="
                + new String(fileName.getBytes(), "ISO8859-1");
        response.addHeader("Content-Disposition", header);
        byte[] buf = new byte[1024];
        while ((len = br.read(buf)) != -1) {
            outp.write(buf, 0, len);
        }
        outp.flush();
        outp.close();
    } finally {
        if (br != null) {
            if (0 == br.available()) {
                br.close();
            }
        }
    }

}

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From source file:de.betterform.agent.web.servlet.XFormsErrorServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    new BufferedWriter(new OutputStreamWriter(response.getOutputStream())).write(getHTML(request));
    response.getOutputStream().flush();/*  w  ww .j  a v a  2  s.com*/
    response.getOutputStream().close();
}

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From source file:controllers.FreeOptionController.java

@RequestMapping("/getXls")
public void getXls(Map<String, Object> model, HttpServletResponse response) throws Exception {
    response.setContentType("application/octet-stream");
    response.setHeader("Content-Disposition", "attachment; filename=Options.xls");
    freeOptionService.getXls().write(response.getOutputStream());
}

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From source file:org.openxdata.server.servlet.DataImportServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    ServletOutputStream out = response.getOutputStream();
    try {//from w  ww . java2 s  .c o  m
        // authenticate user
        User user = getUser(request.getHeader("Authorization"));
        if (user != null) {
            log.info("authenticated user:");
            // check msisdn
            String msisdn = request.getParameter("msisdn");
            if (msisdn != null && !msisdn.equals("")) {
                // if an msisdn is sent, then we retrieve the user with that phone number
                authenticateUserBasedOnMsisd(msisdn);
            }

            // can be empty or null, then the default is used. this parameter is a key in the settings table indicating the classname of the serializer to use
            String serializer = request.getParameter("serializer");

            // input stream
            // first byte contains number of forms (x)
            // followed by x number of UTF strings (use writeUTF method in DataOutput)
            formDownloadService.submitForms(request.getInputStream(), out, serializer);

        } else {
            response.setHeader("WWW-Authenticate", "BASIC realm=\"openxdata\"");
            response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        }
    } catch (UserNotFoundException userNotFound) {
        out.println("Invalid msisdn");
        response.sendError(HttpServletResponse.SC_BAD_REQUEST);
        return;
    } catch (Exception e) {
        log.error("Could not import data", e);
        out.println(e.getMessage());
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } finally {
        out.close();
    }
}

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From source file:org.unitedinternet.cosmo.dav.impl.DavCard.java

public void writeBody(final HttpServletResponse response) throws IOException {
    Item content = getItem();/*w  ww. j a v  a  2  s . c o m*/
    final byte[] calendar = content.getCalendar().getBytes(StandardCharsets.UTF_8);
    IOUtils.copy(new ByteArrayInputStream(calendar), response.getOutputStream());
}

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From source file:com.webpagebytes.cms.controllers.ExportImportController.java

public void exportContent(HttpServletRequest request, HttpServletResponse response, String requestUri)
        throws WPBException {

    try {/*w  w w  . j a v a2 s .  co m*/
        response.setContentType("application/zip");

        storageExporter.exportToZip(response.getOutputStream());

    } catch (IOException e) {
        Map<String, String> errors = new HashMap<String, String>();
        errors.put("", WPBErrors.WB_CANNOT_EXPORT_PROJECT);
        httpServletToolbox.writeBodyResponseAsJson(response, jsonObjectConverter.JSONObjectFromMap(null),
                errors);
    }
}

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