authorizeadminservlet.java

dspace 用j2ee架构的一个数字图书馆.开源程序

            ResourcePolicy policy = null;

            if (policy_id == -1)
            {
                // create new policy
                policy = ResourcePolicy.create(c);
                policy.setResource(collection);
                policy.update();
            }
            else
            {
                policy = ResourcePolicy.find(c, policy_id);
            }

            Group[] groups = Group.findAll(c, Group.NAME);
            EPerson[] epeople = EPerson.findAll(c, EPerson.EMAIL);

            // return to collection permission page
            request.setAttribute("edit_title", "Collection "
                    + collection.getID());
            request.setAttribute("policy", policy);
            request.setAttribute("groups", groups);
            request.setAttribute("epeople", epeople);
            request.setAttribute("id_name", "collection_id");
            request.setAttribute("id", "" + collection.getID());
            JSPManager.showJSP(request, response,
                    "/dspace-admin/authorize-policy-edit.jsp");
        }
        else if (button.equals("submit_community_edit_policy"))
        {
            // edit a community's policy - set up and call policy editor
            Community community = Community.find(c, UIUtil.getIntParameter(
                    request, "community_id"));

            int policy_id = UIUtil.getIntParameter(request, "policy_id");
            ResourcePolicy policy = null;

            if (policy_id == -1)
            {
                // create new policy
                policy = ResourcePolicy.create(c);
                policy.setResource(community);
                policy.update();
            }
            else
            {
                policy = ResourcePolicy.find(c, policy_id);
            }

            Group[] groups = Group.findAll(c, Group.NAME);
            EPerson[] epeople = EPerson.findAll(c, EPerson.EMAIL);

            // return to collection permission page
            request
                    .setAttribute("edit_title", "Community "
                            + community.getID());
            request.setAttribute("policy", policy);
            request.setAttribute("groups", groups);
            request.setAttribute("epeople", epeople);
            request.setAttribute("id_name", "community_id");
            request.setAttribute("id", "" + community.getID());
            JSPManager.showJSP(request, response,
                    "/dspace-admin/authorize-policy-edit.jsp");
        }
        else if (button.equals("submit_collection_add_policy"))
        {
            // want to add a policy, create an empty one and invoke editor
            Collection collection = Collection.find(c, UIUtil.getIntParameter(
                    request, "collection_id"));

            ResourcePolicy policy = ResourcePolicy.create(c);
            policy.setResource(collection);
            policy.update();

            Group[] groups = Group.findAll(c, Group.NAME);
            EPerson[] epeople = EPerson.findAll(c, EPerson.EMAIL);

            // return to collection permission page
            request.setAttribute("edit_title", "Collection "
                    + collection.getID());
            request.setAttribute("policy", policy);
            request.setAttribute("groups", groups);
            request.setAttribute("epeople", epeople);
            request.setAttribute("id_name", "collection_id");
            request.setAttribute("id", "" + collection.getID());
            request.setAttribute("newpolicy", "true");

            JSPManager.showJSP(request, response,
                    "/dspace-admin/authorize-policy-edit.jsp");
        }
        else if (button.equals("submit_community_add_policy"))
        {
            // want to add a policy, create an empty one and invoke editor
            Community community = Community.find(c, UIUtil.getIntParameter(
                    request, "community_id"));

            ResourcePolicy policy = ResourcePolicy.create(c);
            policy.setResource(community);
            policy.update();

            Group[] groups = Group.findAll(c, Group.NAME);
            EPerson[] epeople = EPerson.findAll(c, EPerson.EMAIL);

            // return to collection permission page
            request
                    .setAttribute("edit_title", "Community "
                            + community.getID());
            request.setAttribute("policy", policy);
            request.setAttribute("groups", groups);
            request.setAttribute("epeople", epeople);
            request.setAttribute("id_name", "community_id");
            request.setAttribute("id", "" + community.getID());
            request.setAttribute("newpolicy", "true");

            JSPManager.showJSP(request, response,
                    "/dspace-admin/authorize-policy-edit.jsp");
        }
        else if (button.equals("submit_save_policy"))
        {
            int policy_id = UIUtil.getIntParameter(request, "policy_id");
            int action_id = UIUtil.getIntParameter(request, "action_id");
            int group_id = UIUtil.getIntParameter(request, "group_id");
            int collection_id = UIUtil
                    .getIntParameter(request, "collection_id");
            int community_id = UIUtil.getIntParameter(request, "community_id");
            int item_id = UIUtil.getIntParameter(request, "item_id");

            Item item = null;
            Collection collection = null;
            Community community = null;
            String display_page = null;

            ResourcePolicy policy = ResourcePolicy.find(c, policy_id);
            Group group = Group.find(c, group_id);

            if (collection_id != -1)
            {
                collection = Collection.find(c, collection_id);

                // modify the policy
                policy.setAction(action_id);
                policy.setGroup(group);
                policy.update();

                // if it is a read, policy, modify the logo policy to match
                if (action_id == Constants.READ)
                {
                    // first get a list of READ policies from collection
                    List rps = AuthorizeManager.getPoliciesActionFilter(c,
                            collection, Constants.READ);

                    // remove all bitstream policies, then add READs
                    Bitstream bs = collection.getLogo();

                    if (bs != null)
                    {
                        AuthorizeManager.removeAllPolicies(c, bs);
                        AuthorizeManager.addPolicies(c, rps, bs);
                    }
                }

                // set up page attributes
                request.setAttribute("collection", collection);
                request.setAttribute("policies", AuthorizeManager.getPolicies(
                        c, collection));
                display_page = "/dspace-admin/authorize-collection-edit.jsp";
            }
            else if (community_id != -1)
            {
                community = Community.find(c, community_id);

                // modify the policy
                policy.setAction(action_id);
                policy.setGroup(group);
                policy.update();

                // if it is a read, policy, modify the logo policy to match
                if (action_id == Constants.READ)
                {
                    // first get a list of READ policies from collection
                    List rps = AuthorizeManager.getPoliciesActionFilter(c,
                            community, Constants.READ);

                    // remove all bitstream policies, then add READs
                    Bitstream bs = community.getLogo();

                    if (bs != null)
                    {
                        AuthorizeManager.removeAllPolicies(c, bs);
                        AuthorizeManager.addPolicies(c, rps, bs);
                    }
                }

                // set up page attributes
                request.setAttribute("community", community);
                request.setAttribute("policies", AuthorizeManager.getPolicies(
                        c, community));
                display_page = "/dspace-admin/authorize-community-edit.jsp";
            }
            else if (item_id != -1)
            {
                item = Item.find(c, item_id);

                // modify the policy
                policy.setAction(action_id);
                policy.setGroup(group);
                policy.update();

                // show edit form!
                prepItemEditForm(c, request, item);

                display_page = "/dspace-admin/authorize-item-edit.jsp";
            }

            // now return to previous state
            JSPManager.showJSP(request, response, display_page);
        }
        else if (button.equals("submit_cancel_policy"))
        {
            // delete the policy that we created if it's a new one
            if ((request.getParameter("newpolicy") != null))
            {
                int policy_id = UIUtil.getIntParameter(request, "policy_id");
                ResourcePolicy rp = ResourcePolicy.find(c, policy_id);
                rp.delete();
            }

            // return to the previous page
            int collection_id = UIUtil
                    .getIntParameter(request, "collection_id");
            int community_id = UIUtil.getIntParameter(request, "community_id");
            int item_id = UIUtil.getIntParameter(request, "item_id");
            String display_page = null;

            if (collection_id != -1)
            {
                // set up for return to collection edit page
                Collection t = Collection.find(c, collection_id);

                request.setAttribute("collection", t);
                request.setAttribute("policies", AuthorizeManager.getPolicies(
                        c, t));
                display_page = "/dspace-admin/authorize-collection-edit.jsp";
            }
            else if (community_id != -1)
            {
                // set up for return to community edit page
                Community t = Community.find(c, community_id);

                request.setAttribute("community", t);
                request.setAttribute("policies", AuthorizeManager.getPolicies(
                        c, t));
                display_page = "/dspace-admin/authorize-community-edit.jsp";
            }
            else if (item_id != -1)
            {
                // set up for return to item edit page
                Item t = Item.find(c, item_id);

                // show edit form!
                prepItemEditForm(c, request, t);

                display_page = "/dspace-admin/authorize-item-edit.jsp";
            }

            JSPManager.showJSP(request, response, display_page);
        }
        else if (button.equals("submit_advanced_clear"))
        {
            // remove all policies for a set of objects
            int collection_id = UIUtil
                    .getIntParameter(request, "collection_id");
            int resource_type = UIUtil
                    .getIntParameter(request, "resource_type");

            // if it's to bitstreams, do it to bundles too
            PolicySet.setPolicies(c, Constants.COLLECTION, collection_id,
                    resource_type, 0, 0, false, true);

            if (resource_type == Constants.BITSTREAM)
            {
                PolicySet.setPolicies(c, Constants.COLLECTION, collection_id,
                        Constants.BUNDLE, 0, 0, false, true);
            }

            // return to the main page
            showMainPage(c, request, response);
        }
        else if (button.equals("submit_advanced_add"))
        {
            // add a policy to a set of objects
            int collection_id = UIUtil
                    .getIntParameter(request, "collection_id");
            int resource_type = UIUtil
                    .getIntParameter(request, "resource_type");
            int action_id = UIUtil.getIntParameter(request, "action_id");
            int group_id = UIUtil.getIntParameter(request, "group_id");

            PolicySet.setPolicies(c, Constants.COLLECTION, collection_id,
                    resource_type, action_id, group_id, false, false);

            // if it's a bitstream, do it to the bundle too
            if (resource_type == Constants.BITSTREAM)
            {
                PolicySet.setPolicies(c, Constants.COLLECTION, collection_id,
                        Constants.BUNDLE, action_id, group_id, false, false);
            }

            // return to the main page
            showMainPage(c, request, response);
        }
        else if (button.equals("submit_collection_select"))
        {
            // edit the collection's permissions
            Collection collection = Collection.find(c, UIUtil.getIntParameter(
                    request, "collection_id"));
            List policies = AuthorizeManager.getPolicies(c, collection);

            request.setAttribute("collection", collection);
            request.setAttribute("policies", policies);
            JSPManager.showJSP(request, response,
                    "/dspace-admin/authorize-collection-edit.jsp");
        }
        else
        {
            // return to the main page
            showMainPage(c, request, response);
        }

        c.complete();
    }

    void showMainPage(Context c, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        JSPManager.showJSP(request, response,
                "/dspace-admin/authorize-main.jsp");
    }

    void prepItemEditForm(Context c, HttpServletRequest request, Item item)
            throws SQLException
    {
        List item_policies = AuthorizeManager.getPolicies(c, item);

        // Put bundle and bitstream policies in their own hashes
        Map bundle_policies = new HashMap();
        Map bitstream_policies = new HashMap();

        Bundle[] bundles = item.getBundles();

        for (int i = 0; i < bundles.length; i++)
        {
            Bundle myBundle = bundles[i];
            List myPolicies = AuthorizeManager.getPolicies(c, myBundle);

            // add bundle's policies to bundle_policies map
            bundle_policies.put(new Integer(myBundle.getID()), myPolicies);

            // go through all bundle's bitstreams, add to bitstream map
            Bitstream[] bitstreams = myBundle.getBitstreams();

            for (int j = 0; j < bitstreams.length; j++)
            {
                Bitstream myBitstream = bitstreams[j];
                myPolicies = AuthorizeManager.getPolicies(c, myBitstream);
                bitstream_policies.put(new Integer(myBitstream.getID()),
                        myPolicies);
            }
        }

        request.setAttribute("item", item);
        request.setAttribute("item_policies", item_policies);
        request.setAttribute("bundles", bundles);
        request.setAttribute("bundle_policies", bundle_policies);
        request.setAttribute("bitstream_policies", bitstream_policies);
    }
}