int foundIndex = -1;  for (int y = 0; y < members.length; y++) { if ((members[y] != null) && (members[y].getID() == eperson_ids[x])) { foundIndex = y;  break; } }  if (foundIndex == -1) {  EPerson e = EPerson.find(c, eperson_ids[x]); group.addMember(e); } else {  members[foundIndex] = null; } }
epersonIDSet.add(new Integer(eperson_ids[x])); }    Iterator i = epersonIDSet.iterator();  while (i.hasNext()) { Integer currentID = (Integer) i.next();  if (!memberSet.contains(currentID)) { group.addMember(EPerson.find(c, currentID .intValue())); } }   for (int x = 0; x < members.length; x++) { EPerson e = members[x];  if (!epersonIDSet.contains(new Integer(e.getID()))) { group.removeMember(e); } } } else {
    protected void doDSPost(Context c, HttpServletRequest request,            HttpServletResponse response) throws ServletException, IOException,            SQLException, AuthorizeException    {        // Find out if there's a group parameter        int groupID = UIUtil.getIntParameter(request, "group_id");        Group group = null;        if (groupID >= 0)        {            group = Group.find(c, groupID);        }        // group is set        if (group != null)        {            // is this user authorized to edit this group?            AuthorizeManager.authorizeAction(c, group, Constants.ADD);            boolean submit_edit = (request.getParameter("submit_edit") != null);            boolean submit_group_update = (request                    .getParameter("submit_group_update") != null);            boolean submit_group_delete = (request                    .getParameter("submit_group_delete") != null);            // just chosen a group to edit - get group and pass it to            // group-edit.jsp            if (submit_edit && !submit_group_update && !submit_group_delete)            {                request.setAttribute("group", group);                request.setAttribute("members", group.getMembers());                JSPManager.showJSP(request, response, "/tools/group-edit.jsp");            }            // update the members of the group            else if (submit_group_update)            {                // first off, did we change the group name?                String newName = request.getParameter("group_name");                if (!newName.equals(group.getName()))                {                    group.setName(newName);                    group.update();                }                int[] eperson_ids = UIUtil.getIntParameters(request,                        "eperson_id");                // now get members, and add new ones and remove missing ones                EPerson[] members = group.getMembers();                if (eperson_ids != null)                {                    for (int x = 0; x < eperson_ids.length; x++)                    {                        // look for this ID in the EPerson array                        int foundIndex = -1;                        for (int y = 0; y < members.length; y++)                        {                            if ((members[y] != null)                                    && (members[y].getID() == eperson_ids[x]))                            {                                foundIndex = y;                                break;                            }                        }                        if (foundIndex == -1)                        {                            // didn't find it, add eperson                            EPerson e = EPerson.find(c, eperson_ids[x]);                            group.addMember(e);                        }                        else                        {                            // found it, clear entry in members table                            members[foundIndex] = null;                        }                    }                    // now go through the members array, and any that                    // weren't set to NULL are no longer members, so remove them                    for (int y = 0; y < members.length; y++)                    {                        if (members[y] != null)                        {                            group.removeMember(members[y]);                        }                    }                }                else                {                    // no members found (ids == null), remove them all!                    for (int y = 0; y < members.length; y++)                    {                        group.removeMember(members[y]);                    }                }                group.update();                request.setAttribute("group", group);                request.setAttribute("members", group.getMembers());                JSPManager.showJSP(request, response, "/tools/group-edit.jsp");                c.complete();            }            else if (submit_group_delete)            {                // bogus authorize, only admins can do this                AuthorizeManager.authorizeAction(c, group, Constants.WRITE);                // delete group, return to group-list.jsp                group.delete();                showMainPage(c, request, response);                c.complete();            }            else            {                // unknown action, show edit page                request.setAttribute("group", group);                request.setAttribute("members", group.getMembers());                JSPManager.showJSP(request, response, "/tools/group-edit.jsp");            }        }        else        // no group set        {            // want to add a group - create a blank one, and pass to            // group_edit.jsp            String button = UIUtil.getSubmitButton(request, "submit");            if (button.equals("submit_add"))            {                group = Group.create(c);                group.setName("new group" + group.getID());                group.update();                request.setAttribute("group", group);                request.setAttribute("members", group.getMembers());                JSPManager.showJSP(request, response, "/tools/group-edit.jsp");                c.complete();            }            else            {                // show the main page (select groups)                showMainPage(c, request, response);            }        }    }