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:org.xchain.namespaces.servlet.ResultCommand.java

public boolean execute(JXPathContext context) throws Exception {
    ServletResponse response = getResult(context);

    // set the result in the pipeline config's composite stage
    Result result = new StreamResult(response.getOutputStream());
    PipelineCommand.getPipelineConfig().getCompositeStage().setResult(result);

    // set the content type for the response
    ContentType contentType;/*from   w ww  . ja v  a2  s .  c o  m*/

    String requestedMediaType = hasMediaType() ? getMediaType(context)
            : PipelineCommand.getPipelineConfig().getCompositeStage().getMediaType();
    String requestedEncoding = PipelineCommand.getPipelineConfig().getCompositeStage().getEncoding();

    String charset = ContentType.DEFAULT_CHARSET;
    if (requestedEncoding != null) {
        charset = ContentType.ATTR_CHARSET + "=" + requestedEncoding;
    }

    if (requestedMediaType != null) {
        contentType = new ContentType(requestedMediaType + ";" + charset);
    } else {
        contentType = ContentType.TEXT_HTML;
    }

    // If the browser does not accept XHTML and we are requesting XHTML, default to HTML
    String acceptHeader = ((HttpServletRequest) getRequest(context)).getHeader("Accept");
    if (contentType.mediaTypeMatch(ContentType.TEXT_XHTML)
            && !ContentType.acceptsContentType(acceptHeader, ContentType.TEXT_XHTML)) {
        contentType = ContentType.TEXT_HTML;
    }

    response.setContentType(contentType.toString());

    if (getDisableCaching(context)) {
        disableCaching((HttpServletResponse) response);
    }

    return false;
}

From source file:org.yestech.lib.io.FileSystemFileDownloadFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    String fileName = request.getParameter("file");
    FileInputStream inputStream = null;
    ServletOutputStream outputStream = response.getOutputStream();
    if (StringUtils.isNotBlank(fileName)) {
        try {//from w  ww  .ja va2  s .c  om

            File downloadFile = new File(baseDirectory, fileName);
            response.setContentLength((int) downloadFile.length());
            inputStream = openInputStream(downloadFile);
            copy(inputStream, outputStream);
            outputStream.flush();
            if (deleteAfterDownload) {
                downloadFile.delete();
            }
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            throw new RuntimeException(e);
        } finally {
            closeQuietly(inputStream);
            closeQuietly(outputStream);
        }

    }
}

From source file:uk.gov.devonline.www.xforms.XFormsFilter.java

/**
 * The actual filtering method/* w w w  .  j a v  a 2s  .com*/
 * 
 * @see http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/Filter.html#doFilter(javax.servlet.ServletRequest,%20javax.servlet.ServletResponse,%20javax.servlet.FilterChain)
 */
public void doFilter(ServletRequest srvRequest, ServletResponse srvResponse, FilterChain filterChain)
        throws IOException, ServletException {

    /* before servlet request */
    if (isXFormUpdateRequest(srvRequest)) {
        LOG.info("Start Update XForm");
        updateXForm(srvRequest, srvResponse);
        LOG.info("End Update XForm");
    } else {

        /* do servlet request */
        LOG.info("Passing to Chain");
        BufferedHttpServletResponseWrapper bufResponse = new BufferedHttpServletResponseWrapper(
                (HttpServletResponse) srvResponse);
        filterChain.doFilter(srvRequest, bufResponse);
        LOG.info("Returned from Chain");

        /* after servlet request */
        if (hasXForm(bufResponse)) {
            bufResponse.getOutputStream().close();
            LOG.info("Start Render XForm");

            //remove DOCTYPE PI if it exists, Xerces in Chiba otherwise may try to download the system DTD (can cause latency problems)
            byte[] data = removeDocumentTypePI(bufResponse.getData());
            //correct the <xforms:instance> xmlns="" problem (workaround for namespace problems in eXist)
            data = correctInstanceXMLNS(data);

            renderXForm(new ByteArrayInputStream(data), srvRequest, srvResponse);
            LOG.info("End Render XForm");
        } else {
            srvResponse.getOutputStream().write(bufResponse.getData());
            srvResponse.getOutputStream().close();
        }
    }
}