source: trunk/src/org/expeditee/items/Permission.java@ 963

/**
 *    Permission.java
 *    Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.expeditee.items;

public enum Permission {
        none, followLinks, copy, createFrames, full;

        /**
         * Converts the given Expeditee permission code into a int corresponding to
         * the constants defined in Item.
         * 
         * @param permissionCode
         *            The Expeditee permission code to convert
         * @return The resulting int corresponding to one of the constants defined
         *         in Item
         */
        public static Permission convertString(String permissionCode) {
                return getPermission(permissionCode, Permission.full);
        }

        public static Permission getPermission(String permissionCode,
                        Permission defaultPermission) {
                if (permissionCode == null)
                        return defaultPermission;

                permissionCode = permissionCode.trim().toLowerCase();
                if (permissionCode.length() == 0)
                        return defaultPermission;

                // if it is a single char just match the first character
                try {
                        return values()[Integer.parseInt(permissionCode)];
                        // Otherwise match the whole string
                } catch (Exception ex) {
                        try {
                                return valueOf(permissionCode);
                        } catch (Exception e) {
                        }
                }

                // default permission
                return defaultPermission;
        }

        public int getCode() {
                return ordinal();
        }

        public String toString() {
                return this.name();
        }

        public static Permission min(Permission p1, Permission p2) {
                return p1.ordinal() < p2.ordinal() ? p1 : p2;
        }

        public static Permission max(Permission p1, Permission p2) {
                return p1.ordinal() > p2.ordinal() ? p1 : p2;
        }
}