submitservlet.java

dspace 用j2ee架构的一个数字图书馆.开源程序

            	int lastPage = EDIT_METADATA_1 + 
				               inputsReader.getNumberInputPages( c.getHandle() ) - 1;
                doStep(context, request, response, subInfo, lastPage);
            }
        }
        else if (buttonPressed.equals("submit_next"))
        {
            // "Next" pressed - the actual upload was handled above.
            if (ok)
            {
                // Uploaded etc. OK
                if (bf != null)
                {
                    // Format was identified
                    showUploadFileList(request, response, subInfo, true, false);
                }
                else
                {
                    // Format couldn't be identified
                    showGetFileFormat(context, request, response, subInfo, b);
                }

                context.complete();
            }
            else
            {
                // If we get here, there was a problem uploading, but we
                // still know which submission we're dealing with
            	showProgressAwareJSP(request, response,	subInfo,
            	 	  	     "/submit/upload-error.jsp");
            }
        }
        else
        {
            doStepJump(context, wrapper, response, subInfo);
        }

        // Remove temp file if it's still around
        if (temp != null)
        {
            temp.delete();
        }
    }

    /**
     * Process input from get file type page
     * 
     * @param context
     *            current DSpace context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     * @param subInfo
     *            submission info object
     */
    private void processGetFileFormat(Context context,
            HttpServletRequest request, HttpServletResponse response,
            SubmissionInfo subInfo) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        String buttonPressed = UIUtil.getSubmitButton(request, "submit");

        if (subInfo.bitstream != null)
        {
            // Did the user select a format?
            int typeID = UIUtil.getIntParameter(request, "format");

            BitstreamFormat format = BitstreamFormat.find(context, typeID);

            if (format != null)
            {
                subInfo.bitstream.setFormat(format);
            }
            else
            {
                String userDesc = request.getParameter("format_description");
                subInfo.bitstream.setUserFormatDescription(userDesc);
            }

            subInfo.bitstream.update();

            if (buttonPressed.equals("submit"))
            {
                showUploadFileList(request, response, subInfo, true, false);
            }
            else
            {
                doStepJump(context, request, response, subInfo);
            }

            context.complete();
        }
        else
        {
            log.warn(LogManager.getHeader(context, "integrity_error", UIUtil
                    .getRequestLogInfo(request)));
            JSPManager.showIntegrityError(request, response);
        }
    }

    /**
     * Process input from file list page
     * 
     * @param context
     *            current DSpace context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     * @param subInfo
     *            submission info object
     */
    private void processFileList(Context context, HttpServletRequest request,
            HttpServletResponse response, SubmissionInfo subInfo)
            throws ServletException, IOException, SQLException,
            AuthorizeException
    {
        String buttonPressed = UIUtil.getSubmitButton(request, "submit_next");
        Item item = subInfo.submission.getItem();

        if (buttonPressed.equals("submit_cancel"))
        {
            doCancellation(request, response, subInfo, SubmitServlet.FILE_LIST,
                    SubmitServlet.UPLOAD_FILES);
        }
        else if (buttonPressed.equals("submit_prev"))
        {
            // In some cases, this might be expected to go back
            // to the "choose file" page, but that doesn't make
            // a great deal of sense, so go back to last edit metadata page.
        	Collection c = subInfo.submission.getCollection();
        	int lastPage = EDIT_METADATA_1 + 
			               inputsReader.getNumberInputPages( c.getHandle() ) - 1;
            doStep(context, request, response, subInfo, lastPage);
        }
        else if (buttonPressed.equals("submit_next"))
        {
            // Finished the uploading of files
            // FIXME Validation check here
            // set primary bitstream
            if (request.getParameter("primary_bitstream_id") != null)
            {
                Bundle[] bundles = item.getBundles("ORIGINAL");
                bundles[0].setPrimaryBitstreamID(new Integer(request
                        .getParameter("primary_bitstream_id")).intValue());
                bundles[0].update();
            }

            userHasReached(subInfo, REVIEW_SUBMISSION);
            doStep(context, request, response, subInfo, REVIEW_SUBMISSION);
            context.complete();
        }
        else if (buttonPressed.equals("submit_more"))
        {
            // set primary bitstream
            if (request.getParameter("primary_bitstream_id") != null)
            {
                Bundle[] bundles = item.getBundles("ORIGINAL");
                bundles[0].setPrimaryBitstreamID(new Integer(request
                        .getParameter("primary_bitstream_id")).intValue());
                bundles[0].update();
                context.commit();
            }

            // Upload another file
            showProgressAwareJSP(request, response, subInfo, "/submit/choose-file.jsp");
        }
        else if (buttonPressed.equals("submit_show_checksums"))
        {
            // Show the checksums
            showUploadFileList(request, response, subInfo, false, true);
        }
        else if (buttonPressed.startsWith("submit_describe_"))
        {
            // Change the description of a bitstream
            Bitstream bitstream;

            // Which bitstream does the user want to describe?
            try
            {
                int id = Integer.parseInt(buttonPressed.substring(16));
                bitstream = Bitstream.find(context, id);
            }
            catch (NumberFormatException nfe)
            {
                bitstream = null;
            }

            if (bitstream == null)
            {
                // Invalid or mangled bitstream ID
                log.warn(LogManager.getHeader(context, "integrity_error",
                        UIUtil.getRequestLogInfo(request)));
                JSPManager.showIntegrityError(request, response);

                return;
            }

            // Display the form letting them change the description
            subInfo.bitstream = bitstream;
            showProgressAwareJSP(request, response, subInfo,
                		 "/submit/change-file-description.jsp");
        }
        else if (buttonPressed.startsWith("submit_remove_"))
        {
            // A "remove" button must have been pressed
            Bitstream bitstream;

            // Which bitstream does the user want to describe?
            try
            {
                int id = Integer.parseInt(buttonPressed.substring(14));
                bitstream = Bitstream.find(context, id);
            }
            catch (NumberFormatException nfe)
            {
                bitstream = null;
            }

            if (bitstream == null)
            {
                // Invalid or mangled bitstream ID
                log.warn(LogManager.getHeader(context, "integrity_error",
                        UIUtil.getRequestLogInfo(request)));
                JSPManager.showIntegrityError(request, response);

                return;
            }

            // remove bitstream from bundle..
            // delete bundle if it's now empty
            Bundle[] bundles = bitstream.getBundles();

            bundles[0].removeBitstream(bitstream);

            Bitstream[] bitstreams = bundles[0].getBitstreams();

            // remove bundle if it's now empty
            if (bitstreams.length < 1)
            {
                item.removeBundle(bundles[0]);
                item.update();
            }

            showFirstUploadPage(context, request, response, subInfo);
            context.complete();
        }
        else if (buttonPressed.startsWith("submit_format_"))
        {
            // A "format is wrong" button must have been pressed
            Bitstream bitstream;

            // Which bitstream does the user want to describe?
            try
            {
                int id = Integer.parseInt(buttonPressed.substring(14));
                bitstream = Bitstream.find(context, id);
            }
            catch (NumberFormatException nfe)
            {
                bitstream = null;
            }

            if (bitstream == null)
            {
                // Invalid or mangled bitstream ID
                log.warn(LogManager.getHeader(context, "integrity_error",
                        UIUtil.getRequestLogInfo(request)));
                JSPManager.showIntegrityError(request, response);

                return;
            }

            subInfo.bitstream = bitstream;
            showGetFileFormat(context, request, response, subInfo, bitstream);
        }
        else
        {
            doStepJump(context, request, response, subInfo);
        }
    }

    /**
     * Process input from the upload error page
     * 
     * @param context
     *            current DSpace context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     * @param subInfo
     *            submission info object
     */
    private void processUploadError(Context context,
            HttpServletRequest request, HttpServletResponse response,
            SubmissionInfo subInfo) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        String buttonPressed = UIUtil.getSubmitButton(request, "submit_next");

        // no real options on the page, just retry!
        if (buttonPressed.equals("submit"))
        {
            showProgressAwareJSP(request, response, subInfo,
            		             "/submit/choose-file.jsp");
        }
        else
        {
            doStepJump(context, request, response, subInfo);
        }
    }

    /**
     * Process input from the "change file description" page
     * 
     * @param context
     *            current DSpace context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     * @param subInfo
     *            submission info object
     */
    private void processChangeFileDescription(Context context,
            HttpServletRequest request, HttpServletResponse response,
            SubmissionInfo subInfo) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        if (subInfo.bitstream != null)
        {
            subInfo.bitstream.setDescription(request
                    .getParameter("description"));
            subInfo.bitstream.update();

            if (request.getParameter("submit") != null)
            {
                showUploadFileList(request, response, subInfo, false, false);
            }
            else
            {
                doStepJump(context, request, response, subInfo);
            }

            context.complete();
        }
        else
        {
            log.warn(LogManager.getHeader(context, "integrity_error", UIUtil
                    .getRequestLogInfo(request)));
            JSPManager.showIntegrityError(request, response);
        }
    }

    /**
     * Process information from "submission cancelled" page
     * 
     * @param context
     *            current DSpace context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     * @param subInfo
     *            submission info object
     */
    private void processCancellation(Context context,