Example usage for org.apache.commons.fileupload.sdata.servlet ServletFileUpload getItemIterator

Introduction

In this page you can find the example usage for org.apache.commons.fileupload.sdata.servlet ServletFileUpload getItemIterator.

Prototype

public FileItemIterator getItemIterator(HttpServletRequest request) throws FileUploadException, IOException 

Source Link

Document

Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a> compliant <code>multipart/form-data</code> stream.

Usage

From source file:org.sakaiproject.sdata.tool.JCRHandler.java

/**
 * Perform a mime multipart upload into the JCR repository based on a location specified
 * by the rp parameter. The parts of the multipart upload are relative to the current
 * request path/*from   w w w .  j a  va  2  s .  c o m*/
 *
 * @param request
 *          the request object of the current request.
 * @param response
 *          the response object of the current request
 * @param rp
 *          the resource definition for the current request
 * @throws ServletException
 * @throws IOException
 */
private void doMumtipartUpload(HttpServletRequest request, HttpServletResponse response, ResourceDefinition rp)
        throws ServletException, IOException {
    try {
        try {
            Node n = jcrNodeFactory.createFolder(rp.getRepositoryPath());
            if (n == null) {
                response.reset();
                response.sendError(HttpServletResponse.SC_BAD_REQUEST,
                        "Unable to uplaod to location " + rp.getRepositoryPath());
                return;
            }
        } catch (Exception ex) {
            sendError(request, response, ex);
            snoopRequest(request);
            LOG.error("Failed  TO service Request ", ex);
            return;
        }

        // Check that we have a file upload request

        // Create a new file upload handler
        ServletFileUpload upload = new ServletFileUpload();
        List<String> errors = new ArrayList<String>();

        // Parse the request
        FileItemIterator iter = upload.getItemIterator(request);
        Map<String, Object> responseMap = new HashMap<String, Object>();
        Map<String, Object> uploads = new HashMap<String, Object>();
        Map<String, List<String>> values = new HashMap<String, List<String>>();
        int uploadNumber = 0;
        while (iter.hasNext()) {
            FileItemStream item = iter.next();
            LOG.debug("Got Upload through Uploads");
            String name = item.getName();
            String fieldName = item.getFieldName();
            LOG.info("    Name is " + name + " field Name " + fieldName);
            for (String headerName : item.getHeaderNames()) {
                LOG.info("Header " + headerName + " is " + item.getHeader(headerName));
            }
            InputStream stream = item.openStream();
            if (!item.isFormField()) {
                try {
                    if (name != null && name.trim().length() > 0) {

                        List<String> realNames = values.get(REAL_UPLOAD_NAME);
                        String finalName = name;
                        if (realNames != null && realNames.size() > uploadNumber) {
                            finalName = realNames.get(uploadNumber);
                        }

                        String path = rp.convertToAbsoluteRepositoryPath(finalName);
                        // pooled uploads never overwrite.
                        List<String> pooled = values.get(POOLED);
                        if (pooled != null && pooled.size() > 0 && "1".equals(pooled.get(0))) {
                            path = rp.convertToAbsoluteRepositoryPath(PathUtils.getPoolPrefix(finalName));
                            int i = 0;
                            String basePath = path;
                            try {
                                while (true) {
                                    Node n = jcrNodeFactory.getNode(path);
                                    if (n == null) {
                                        break;
                                    }
                                    int lastStop = basePath.lastIndexOf('.');
                                    path = basePath.substring(0, lastStop) + "_" + i
                                            + basePath.substring(lastStop);
                                    i++;
                                }
                            } catch (JCRNodeFactoryServiceException ex) {
                                // the path does not exist which is good.
                            }
                        }

                        String mimeType = ContentTypes.getContentType(finalName, item.getContentType());
                        Node target = jcrNodeFactory.createFile(path, mimeType);
                        GregorianCalendar lastModified = new GregorianCalendar();
                        lastModified.setTime(new Date());
                        long size = saveStream(target, stream, mimeType, "UTF-8", lastModified);
                        Map<String, Object> uploadMap = new HashMap<String, Object>();
                        if (size > Integer.MAX_VALUE) {
                            uploadMap.put("contentLength", String.valueOf(size));
                        } else {
                            uploadMap.put("contentLength", (int) size);
                        }
                        uploadMap.put("name", finalName);
                        uploadMap.put("url", rp.convertToExternalPath(path));
                        uploadMap.put("mimeType", mimeType);
                        uploadMap.put("lastModified", lastModified.getTime());
                        uploadMap.put("status", "ok");

                        uploads.put(fieldName, uploadMap);
                    }
                } catch (Exception ex) {
                    LOG.error("Failed to Upload Content", ex);
                    Map<String, Object> uploadMap = new HashMap<String, Object>();
                    uploadMap.put("mimeType", "text/plain");
                    uploadMap.put("encoding", "UTF-8");
                    uploadMap.put("contentLength", -1);
                    uploadMap.put("lastModified", 0);
                    uploadMap.put("status", "Failed");
                    uploadMap.put("cause", ex.getMessage());
                    List<String> stackTrace = new ArrayList<String>();
                    for (StackTraceElement ste : ex.getStackTrace()) {
                        stackTrace.add(ste.toString());
                    }
                    uploadMap.put("stacktrace", stackTrace);
                    uploads.put(fieldName, uploadMap);
                    uploadMap = null;

                }

            } else {
                String value = Streams.asString(stream);
                List<String> valueList = values.get(name);
                if (valueList == null) {
                    valueList = new ArrayList<String>();
                    values.put(name, valueList);

                }
                valueList.add(value);
            }
        }

        responseMap.put("success", true);
        responseMap.put("errors", errors.toArray(new String[1]));
        responseMap.put("uploads", uploads);
        sendMap(request, response, responseMap);
        LOG.info("Response Complete Saved to " + rp.getRepositoryPath());
    } catch (Throwable ex) {
        LOG.error("Failed  TO service Request ", ex);
        sendError(request, response, ex);
        return;
    }
}

---