collectionwizardservlet.java

dspace 用j2ee架构的一个数字图书馆.开源程序

            // Give it the needed permission
            AuthorizeManager.addPolicy(context, collection,
                    Constants.DEFAULT_ITEM_READ, g);
            AuthorizeManager.addPolicy(context, collection,
                    Constants.DEFAULT_BITSTREAM_READ, g);

            break;

        case PERM_SUBMIT:
            g = collection.getSubmitters();

            break;

        case PERM_WF1:
            g = collection.getWorkflowGroup(1);

            break;

        case PERM_WF2:
            g = collection.getWorkflowGroup(2);

            break;

        case PERM_WF3:
            g = collection.getWorkflowGroup(3);

            break;

        case PERM_ADMIN:
            g = collection.getAdministrators();

            break;
        }

        // Add people and groups from the form to the group
        int[] eperson_ids = UIUtil.getIntParameters(request, "eperson_id");
        int[] group_ids = UIUtil.getIntParameters(request, "group_ids");
        
        if (eperson_ids != null)
        {
            for (int i = 0; i < eperson_ids.length; i++)
            {
                EPerson eperson = EPerson.find(context, eperson_ids[i]);

                if (eperson != null)
                {
                    g.addMember(eperson);
                }
            }
        }
        
        if (group_ids != null)
        {
            for (int i = 0; i < group_ids.length; i++)
            {
                Group group = Group.find(context, group_ids[i]);
            
                if (group != null)
                {
                    g.addMember(group);
                }
            }
        }
        

        // Update group
        g.update();

        showNextPage(context, request, response, collection, permission);

        context.complete();
    }

    /**
     * process input from basic info page
     * 
     * @param context
     * @param request
     * @param response
     * @param collection
     * @throws SQLException
     * @throws ServletException
     * @throws IOException
     * @throws AuthorizeException
     */
    private void processBasicInfo(Context context, HttpServletRequest request,
            HttpServletResponse response) throws SQLException,
            ServletException, IOException, AuthorizeException
    {
        // Wrap multipart request to get the submission info
        FileUploadRequest wrapper = new FileUploadRequest(request);

        Collection collection = Collection.find(context, UIUtil
                .getIntParameter(wrapper, "collection_id"));

        if (collection == null)
        {
            log.warn(LogManager.getHeader(context, "integrity_error", UIUtil
                    .getRequestLogInfo(wrapper)));
            JSPManager.showIntegrityError(request, response);

            return;
        }

        // Get metadata
        collection.setMetadata("name", wrapper.getParameter("name"));
        collection.setMetadata("short_description", wrapper
                .getParameter("short_description"));
        collection.setMetadata("introductory_text", wrapper
                .getParameter("introductory_text"));
        collection.setMetadata("copyright_text", wrapper
                .getParameter("copyright_text"));
        collection.setMetadata("side_bar_text", wrapper
                .getParameter("side_bar_text"));
        collection.setMetadata("provenance_description", wrapper
                .getParameter("provenance_description"));

        // Need to be more careful about license -- make sure it's null if
        // nothing was entered
        String license = wrapper.getParameter("license");

        if ((license != null) || "".equals(license))
        {
            collection.setLicense(license);
        }

        File temp = wrapper.getFile("file");

        if (temp != null)
        {
            // Read the temp file as logo
            InputStream is = new BufferedInputStream(new FileInputStream(temp));
            Bitstream logoBS = collection.setLogo(is);

            // Strip all but the last filename. It would be nice
            // to know which OS the file came from.
            String noPath = wrapper.getFilesystemName("file");

            while (noPath.indexOf('/') > -1)
            {
                noPath = noPath.substring(noPath.indexOf('/') + 1);
            }

            while (noPath.indexOf('\\') > -1)
            {
                noPath = noPath.substring(noPath.indexOf('\\') + 1);
            }

            logoBS.setName(noPath);
            logoBS.setSource(wrapper.getFilesystemName("file"));

            // Identify the format
            BitstreamFormat bf = FormatIdentifier.guessFormat(context, logoBS);
            logoBS.setFormat(bf);
            logoBS.update();

            // Remove temp file
            temp.delete();
        }

        collection.update();

        // Now work out what next page is
        showNextPage(context, request, response, collection, BASIC_INFO);

        context.complete();
    }

    /**
     * Process input from default item page
     * 
     * @param context
     *            DSpace context
     * @param request
     *            HTTP request
     * @param response
     *            HTTP response
     * @param collection
     *            Collection we're editing
     */
    private void processDefaultItem(Context context,
            HttpServletRequest request, HttpServletResponse response,
            Collection collection) throws SQLException, ServletException,
            IOException, AuthorizeException
    {
        Item item = collection.getTemplateItem();

        for (int i = 0; i < 10; i++)
        {
            int dcTypeID = UIUtil.getIntParameter(request, "dctype_" + i);
            String value = request.getParameter("value_" + i);
            String lang = request.getParameter("lang_" + i);

            if ((dcTypeID != -1) && (value != null) && !value.equals(""))
            {
                MetadataField field = MetadataField.find(context,dcTypeID);
                MetadataSchema schema = MetadataSchema.find(context,field.getSchemaID());
                item.addMetadata(schema.getName(),field.getElement(), field.getQualifier(), lang, value);
            }
        }

        item.update();

        // Now work out what next page is
        showNextPage(context, request, response, collection, DEFAULT_ITEM);

        context.complete();
    }

    /**
     * Work out which page to show next, and show it
     * 
     * @param context
     * @param request
     * @param response
     * @param collection
     * @param stage
     *            the stage the user just finished, or if PERMISSIONS, the
     *            particular permissions page
     * @throws SQLException
     * @throws ServletException
     * @throws IOException
     * @throws AuthorizeException
     */
    private void showNextPage(Context context, HttpServletRequest request,
            HttpServletResponse response, Collection collection, int stage)
            throws SQLException, ServletException, IOException,
            AuthorizeException
    {
        // Put collection in request attributes, as most JSPs will need it
        request.setAttribute("collection", collection);

        // FIXME: Not a nice hack -- do we show the MIT users checkbox?
        if (Group.findByName(context, "MIT Users") != null)
        {
            request.setAttribute("mitgroup", new Boolean(true));
        }

        log.debug(LogManager.getHeader(context, "nextpage", "stage=" + stage));

        switch (stage)
        {
        case BASIC_INFO:

            // Next page is 'permission to read' page iff ITEM_DEFAULT_READ
            // for anonymous group is NOT there
            List anonReadPols = AuthorizeManager.getPoliciesActionFilter(
                    context, collection, Constants.DEFAULT_ITEM_READ);

            // At this stage, if there's any ITEM_DEFAULT_READ, it can only
            // be an anonymous one.
            if (anonReadPols.size() == 0)
            {
                request.setAttribute("permission", new Integer(PERM_READ));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_READ:

            // Next page is 'permission to submit' iff there's a submit group
            // defined
            if (collection.getSubmitters() != null)
            {
                request.setAttribute("permission", new Integer(PERM_SUBMIT));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_SUBMIT:

            // Next page is 'workflow step 1' iff there's a wf step 1 group
            // defined
            if (collection.getWorkflowGroup(1) != null)
            {
                request.setAttribute("permission", new Integer(PERM_WF1));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_WF1:

            // Next page is 'workflow step 2' iff there's a wf step 2 group
            // defined
            if (collection.getWorkflowGroup(2) != null)
            {
                request.setAttribute("permission", new Integer(PERM_WF2));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_WF2:

            // Next page is 'workflow step 3' iff there's a wf step 2 group
            // defined
            if (collection.getWorkflowGroup(3) != null)
            {
                request.setAttribute("permission", new Integer(PERM_WF3));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_WF3:

            // Next page is 'collection administrator' iff there's a collection
            // administrator group
            if (collection.getAdministrators() != null)
            {
                request.setAttribute("permission", new Integer(PERM_ADMIN));
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-permissions.jsp");

                break;
            }

        case PERM_ADMIN:

            // Next page is 'default item' iff there's a default item
            if (collection.getTemplateItem() != null)
            {
                MetadataField[] types = MetadataField.findAll(context);
                request.setAttribute("dctypes", types);
                JSPManager.showJSP(request, response,
                        "/dspace-admin/wizard-default-item.jsp");

                break;
            }

        case DEFAULT_ITEM:

            // Next page is 'summary page (the last page)
            // sort of a hack to pass the community ID to the edit collection
            // page,
            // which needs it in other contexts
            if (collection != null)
            {
                Community[] communities = collection.getCommunities();
                request.setAttribute("community", communities[0]);

                if (AuthorizeManager.isAdmin(context))
                {
                    // set a variable to show all buttons
                    request.setAttribute("admin_button", new Boolean(true));
                }
            }

            JSPManager.showJSP(request, response, "/tools/edit-collection.jsp");

            break;
        }
    }
}