Metacat

            String permission, String permissionType, String permissionOrder)

      throws Exception

    {

        params.put("principal", new String[] {principal});

        params.put("permission", new String[] {permission});

        params.put("permType", new String[] {permissionType});

        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        PrintWriter out = new PrintWriter(baos);

        handleSetAccessAction(out, params, username, null, null);

    }

    /** read metadata or data from Metacat

        String[] permOrderList = params.get("permOrder");

        String[] qformatList = params.get("qformat");

        String[] accessBlock = params.get("accessBlock");

        if(accessBlock != null) {

            if (docList == null) {

                errorList.addElement("MetaCatServlet.handleSetAccessAction - Doc id missing.  Please check your parameter list, it should look like: "

                outputResponse(successList, errorList, out);

                return;

            }

            try {

                AccessControlForSingleFile accessControl = 

                    new AccessControlForSingleFile(docList[0]);

            } catch(AccessControlException ace) {

                errorList.addElement("MetaCatServlet.handleSetAccessAction - access control error when setting " + 

                    "access block: " + ace.getMessage());

            outputResponse(successList, errorList, out);

            return;

        }

                    ple.printStackTrace(System.out);

                }

            }

            String accessionNumber = docid;

            String owner = null;

            String publicId = null;

                error = "User - " + username + " does not have permission to set "

                        + "access control for docid - " + accessionNumber;

                errorList.addElement(error);

                continue;

            }

                error = "Could not set access control to document " + accessionNumber

                        + "because it is in a pakcage and it has a access file for it";

                errorList.addElement(error);

                continue;

            }

            // for every principle

            for (int j = 0; j < principalList.length; j++) {

                String principal = principalList[j];