/**
    * This file Copyright (c) 2003-2014 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.cms.security;
  
  import info.magnolia.cms.util.UrlPattern;
  
  import java.io.Serializable;
  import java.util.Hashtable;
  import java.util.Map;
  
  
  /**
   * Concrete implementation of {@link Permission} using {@link UrlPattern} to match pathes.
   * @author Sameer Charles
   */
  public class PermissionImpl implements Permission, Serializable {
  
      /**
       * Stable serialVersionUID.
       */
      private static final long serialVersionUID = 222L;
  
      private static Map<Long, String> nameStrings = new Hashtable<Long, String>();
  
      static {
          nameStrings.put(Long.valueOf(0), "none");
          nameStrings.put(Long.valueOf(Permission.ADD), Permission.PERMISSION_NAME_ADD);
          nameStrings.put(Long.valueOf(Permission.SET), Permission.PERMISSION_NAME_SET);
          nameStrings.put(Long.valueOf(Permission.REMOVE), Permission.PERMISSION_NAME_REMOVE);
          nameStrings.put(Long.valueOf(Permission.READ), Permission.PERMISSION_NAME_READ);
          nameStrings.put(Long.valueOf(Permission.EXECUTE), Permission.PERMISSION_NAME_EXECUTE);
          nameStrings.put(Long.valueOf(Permission.SYNDICATE), Permission.PERMISSION_NAME_SYNDICATE);
          nameStrings.put(Long.valueOf(Permission.ALL), Permission.PERMISSION_NAME_ALL);
          nameStrings.put(Long.valueOf(Permission.WRITE), Permission.PERMISSION_NAME_WRITE);
      }
  
      private UrlPattern pattern;
  
      private long permissions;
  
      @Override
      public void setPattern(UrlPattern value) {
          this.pattern = value;
      }
  
      @Override
      public UrlPattern getPattern() {
          return this.pattern;
      }
  
      @Override
      public void setPermissions(long value) {
          this.permissions = value;
      }
  
      @Override
      public long getPermissions() {
          return this.permissions;
      }
  
      @Override
      public boolean match(String path) {
          return this.pattern.match(path);
      }
  
      @Override
      public String toString() {
          return getPermissionAsName(permissions) + " " + pattern;
     }
 
     public static String getPermissionAsName(long permission) {
         final String name = nameStrings.get(Long.valueOf(permission));
         if (name == null) {
             return "[unknown permission]";
         }
         return name;
     }
 }