Example usage for javax.servlet ServletOutputStream close

Introduction

In this page you can find the example usage for javax.servlet ServletOutputStream close.

Prototype

public void close() throws IOException

Source Link

Document

Closes this output stream and releases any system resources associated with this stream.

Usage

From source file:com.concursive.connect.web.modules.documents.beans.FileDownload.java

/**
 * Description of the Method/*  w ww. j a  v a2  s . c  om*/
 *
 * @param context     Description of the Parameter
 * @param bytes       Description of the Parameter
 * @param contentType Description of the Parameter
 * @throws Exception Description of the Exception
 */
public static void streamFile(ActionContext context, byte[] bytes, String contentType) throws Exception {
    context.getResponse().setContentType(contentType);
    ServletOutputStream outputStream = context.getResponse().getOutputStream();
    outputStream.write(bytes, 0, bytes.length);
    outputStream.flush();
    outputStream.close();
}

From source file:com.soolr.core.web.Servlets.java

public static void output(HttpServletResponse response, String contentType, Object content) throws IOException {
    ServletOutputStream output = response.getOutputStream();
    try {/*w  w  w .  j  a  va  2  s  .  c o  m*/
        response.setContentType(contentType);
        if (content instanceof byte[]) {
            byte[] temp = (byte[]) content;
            output.write(temp);
        } else if (content instanceof String) {
            output.print(String.valueOf(content));
        }
    } finally {
        output.flush();
        output.close();
    }
}

From source file:org.wso2.carbon.hdfs.mgt.ui.GetHDFSItemContentProcessor.java

public static void getContent(HttpServletRequest request, HttpServletResponse response, ServletConfig config)
        throws Exception {

    try {/*w w w .j a  v  a 2  s. co  m*/
        HDFSFileOperationAdminClient client = new HDFSFileOperationAdminClient(config.getServletContext(),
                request.getSession());
        String path = request.getParameter("path");
        if (path == null) {
            String msg = "Could not get the resource content. Path is not specified.";
            log.error(msg);
            response.setStatus(400);
            return;
        }

        HDFSFileContent fileContent = client.downloadFile(path);
        String fileName = path.substring(path.lastIndexOf("/") + 1, path.length());

        InputStream contentStream = null;
        if (fileContent.getDataHandler() != null) {
            contentStream = fileContent.getDataHandler().getInputStream();
        } else {
            String msg = "The resource content was empty.";
            log.error(msg);
            response.setStatus(204);
            return;
        }

        response.setContentType("application/download");
        response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

        if (contentStream != null) {

            ServletOutputStream servletOutputStream = null;
            try {
                servletOutputStream = response.getOutputStream();

                byte[] contentChunk = new byte[1024];
                int byteCount;
                while ((byteCount = contentStream.read(contentChunk)) != -1) {
                    servletOutputStream.write(contentChunk, 0, byteCount);
                }

                response.flushBuffer();
                servletOutputStream.flush();

            } finally {
                contentStream.close();

                if (servletOutputStream != null) {
                    servletOutputStream.close();
                }
            }
        }
    } catch (HdfsMgtUiComponentException ex) {
        String msg = "Failed to get resource content. " + ex.getMessage();
        log.error(msg, ex);
        response.setStatus(500);
        return;

    } catch (RegistryException e) {
        String msg = "Failed to get resource content. " + e.getMessage();
        log.error(msg, e);
        response.setStatus(500);
        return;
    }
}

From source file:com.zlfun.framework.excel.ExcelUtils.java

public static <T> void httpOutput(String name, Class<T> clazz, List<T> list, HttpServletRequest request,
        HttpServletResponse response) {//from  w  ww  . ja  va2s .  c  o  m
    try {
        request.setCharacterEncoding("UTF-8");//request???
        String fileName = name;//??
        String contentType = "application/vnd.ms-excel";//?
        String recommendedName = new String(fileName.getBytes(), "iso_8859_1");//????
        response.setContentType(contentType);//?
        response.setHeader("Content-Disposition", "attachment; filename=" + recommendedName + "\"");//
        response.resetBuffer();
        //?
        ServletOutputStream sos = response.getOutputStream();
        write(name, clazz, list, sos);
        sos.flush();
        sos.close();
    } catch (UnsupportedEncodingException ex) {
        Logger.getLogger(ExcelUtils.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(ExcelUtils.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:org.wso2.carbon.registry.resource.ui.utils.GetResourceContentProcessor.java

public static void getContent(HttpServletRequest request, HttpServletResponse response, ServletConfig config)
        throws Exception {

    try {/*from ww w. jav  a 2 s .  c  om*/
        ResourceServiceClient client = new ResourceServiceClient(config, request.getSession());
        String path = request.getParameter("path");
        if (path == null) {
            String msg = "Could not get the resource content. Path is not specified.";
            log.error(msg);
            response.setStatus(400);
            return;
        }

        ContentDownloadBean bean = client.getContentDownloadBean(path);

        InputStream contentStream = null;
        if (bean.getContent() != null) {
            contentStream = bean.getContent().getInputStream();
        } else {
            String msg = "The resource content was empty.";
            log.error(msg);
            response.setStatus(204);
            return;
        }

        response.setDateHeader("Last-Modified", bean.getLastUpdatedTime().getTime().getTime());

        if (bean.getMediatype() != null && bean.getMediatype().length() > 0) {
            response.setContentType(bean.getMediatype());
        } else {
            response.setContentType("application/download");
        }

        if (bean.getResourceName() != null) {
            response.setHeader("Content-Disposition",
                    "attachment; filename=\"" + bean.getResourceName() + "\"");
        }

        if (contentStream != null) {

            ServletOutputStream servletOutputStream = null;
            try {
                servletOutputStream = response.getOutputStream();

                byte[] contentChunk = new byte[1024];
                int byteCount;
                while ((byteCount = contentStream.read(contentChunk)) != -1) {
                    servletOutputStream.write(contentChunk, 0, byteCount);
                }

                response.flushBuffer();
                servletOutputStream.flush();

            } finally {
                contentStream.close();

                if (servletOutputStream != null) {
                    servletOutputStream.close();
                }
            }
        }

    } catch (RegistryException e) {
        String msg = "Failed to get resource content. " + e.getMessage();
        log.error(msg, e);
        response.setStatus(500);
        return;
    }
}

From source file:org.wso2.carbon.registry.resource.ui.utils.GetResourceContentProcessor.java

public static void getContentWithDependencies(HttpServletRequest request, HttpServletResponse response,
        ServletConfig config) throws Exception {

    try {/*from w  w  w .j  a va 2 s .c om*/
        String path = request.getParameter("path");
        if (path == null) {
            String msg = "Could not get the resource content. Path is not specified.";
            log.error(msg);
            response.setStatus(400);
            return;
        }

        ResourceServiceClient client = new ResourceServiceClient(config, request.getSession());
        ContentDownloadBean bean = client.getContentDownloadBean(path);
        String downloadName = bean.getResourceName() + ".zip";

        response.setDateHeader("Last-Modified", bean.getLastUpdatedTime().getTime().getTime());
        InputStream zipContentStream = null;

        ContentDownloadBean zipContentBean = client.getZipWithDependencies(path);
        if (zipContentBean == null || (zipContentBean != null && zipContentBean.getContent() == null)) {
            String msg = "Error occurred while streaming the resource with its dependencies : path =" + path;
            log.error(msg);
            response.setStatus(204);
            return;
        }

        zipContentStream = zipContentBean.getContent().getInputStream();

        if (zipContentStream == null) {
            String msg = "Error occurred while streaming the resource with its dependencies : path =" + path;
            log.error(msg);
            response.setStatus(204);
            return;
        }

        if (bean.getMediatype() != null && bean.getMediatype().length() > 0) {
            response.setContentType(bean.getMediatype());
        } else {
            response.setContentType("application/download");
        }

        if (bean.getResourceName() != null) {
            response.setHeader("Content-Disposition", "attachment; filename=\"" + downloadName + "\"");
        }

        if (zipContentStream != null) {

            ServletOutputStream servletOutputStream = null;
            try {
                servletOutputStream = response.getOutputStream();

                byte[] contentChunk = new byte[1024];
                int byteCount;
                while ((byteCount = zipContentStream.read(contentChunk)) != -1) {
                    servletOutputStream.write(contentChunk, 0, byteCount);
                }

                response.flushBuffer();
                servletOutputStream.flush();

            } finally {
                zipContentStream.close();

                if (servletOutputStream != null) {
                    servletOutputStream.close();
                }
            }
        }

    } catch (Exception e) {
        String msg = "Failed to get resource content. " + e.getMessage();
        log.error(msg, e);
        response.setStatus(500);
        return;
    }
}

From source file:org.ff4j.web.embedded.ConsoleOperations.java

/**
 * Build Http response when invoking export features.
 * //from  w  ww  .jav  a2 s . c o m
 * @param res
 *            http response
 * @throws IOException
 *             error when building response
 */
public static void exportFile(FF4j ff4j, HttpServletResponse res) throws IOException {
    Map<String, Feature> features = ff4j.getFeatureStore().readAll();
    InputStream in = new XmlParser().exportFeatures(features);
    ServletOutputStream sos = null;
    try {
        sos = res.getOutputStream();
        res.setContentType("text/xml");
        res.setHeader("Content-Disposition", "attachment; filename=\"ff4j.xml\"");
        // res.setContentLength()
        org.apache.commons.io.IOUtils.copy(in, sos);
        LOGGER.info(features.size() + " features have been exported.");
    } finally {
        if (in != null) {
            in.close();
        }
        if (sos != null) {
            sos.flush();
            sos.close();
        }
    }
}

From source file:nl.nn.adapterframework.webcontrol.FileViewerServlet.java

public static void showInputStreamContents(InputStream inputStream, String filename, String type,
        HttpServletResponse response) throws DomBuilderException, TransformerException, IOException {
    ServletOutputStream outputStream = response.getOutputStream();
    if (type.equalsIgnoreCase("zip")) {
        response.setContentType("application/zip");
    } else {//from w  w  w . ja  v a  2 s  .  c  om
        response.setContentType("application/octet-stream");
    }
    String lastPart;
    try {
        File f = new File(filename);
        lastPart = f.getName();
    } catch (Throwable t) {
        lastPart = filename;
    }
    response.setHeader("Content-Disposition", "attachment; filename=\"" + lastPart + "\"");
    Misc.streamToStream(inputStream, outputStream);
    ;
    outputStream.close();
}

From source file:ispyb.client.common.util.FileUtil.java

/**
 * downloadFile/*from   ww w. j  a  v  a 2s. c  o  m*/
 * 
 * @param fullFilePath
 * @param mimeType
 * @param response
 */
public static void DownloadFile(String fullFilePath, String mimeType, String attachmentFilename,
        HttpServletResponse response) {
    try {
        byte[] imageBytes = FileUtil.readBytes(fullFilePath);
        response.setContentLength(imageBytes.length);
        ServletOutputStream out = response.getOutputStream();
        response.setHeader("Pragma", "public");
        response.setHeader("Cache-Control", "max-age=0");
        response.setContentType(mimeType);
        response.setHeader("Content-Disposition", "attachment; filename=" + attachmentFilename);

        out.write(imageBytes);
        out.flush();
        out.close();

    } catch (FileNotFoundException fnf) {
        LOG.debug("[DownloadFile] File not found: " + fullFilePath);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:simplestorage.hashtable.JsonView.java

@Override
protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    response.setContentType("text/plain");
    response.setHeader("Cache-Control", "no-cache");
    String json = model.get("responseJson").toString();
    ServletOutputStream out = response.getOutputStream();
    out.print(json);//from  ww  w. java 2  s  .c  o m
    out.close();
}