content: /*
   * Copyright (C) 2013 Glyptodon LLC
   * 
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   * 
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  package org.glyptodon.guacamole.net.auth.simple;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  import org.glyptodon.guacamole.GuacamoleException;
  import org.glyptodon.guacamole.GuacamoleSecurityException;
  import org.glyptodon.guacamole.net.auth.ConnectionGroup;
  import org.glyptodon.guacamole.net.auth.Directory;
  
  /**
   * An extremely simple read-only implementation of a Directory of
   * ConnectionGroup which provides which provides access to a pre-defined
   * Collection of ConnectionGroups.
   *
   * @author James Muehlner
   */
  public class SimpleConnectionGroupDirectory
      implements Directory<String, ConnectionGroup> {
  
      /**
       * The Map of ConnectionGroups to provide access to.
       */
      private Map<String, ConnectionGroup> connectionGroups =
              new HashMap<String, ConnectionGroup>();
  
      /**
       * Creates a new SimpleConnectionGroupDirectory which contains the given
       * groups.
       * 
       * @param groups A Collection of all groups that should be present in this
       *               connection group directory.
       */
      public SimpleConnectionGroupDirectory(Collection<ConnectionGroup> groups) {
  
          // Add all given groups
          for (ConnectionGroup group : groups)
              connectionGroups.put(group.getIdentifier(), group);
  
      }
  
      @Override
      public ConnectionGroup get(String identifier)
              throws GuacamoleException {
          return connectionGroups.get(identifier);
      }
  
      @Override
      public Set<String> getIdentifiers() throws GuacamoleException {
          return connectionGroups.keySet();
      }
  
      @Override
      public void add(ConnectionGroup connectionGroup)
              throws GuacamoleException {
          throw new GuacamoleSecurityException("Permission denied.");
      }
  
      @Override
      public void update(ConnectionGroup connectionGroup)
              throws GuacamoleException {
          throw new GuacamoleSecurityException("Permission denied.");
      }
  
      @Override
      public void remove(String identifier) throws GuacamoleException {
          throw new GuacamoleSecurityException("Permission denied.");
      }
  
      @Override
      public void move(String identifier, Directory<String, ConnectionGroup> directory) 
              throws GuacamoleException {
          throw new GuacamoleSecurityException("Permission denied.");
      }
  
      /**
       * An internal method for modifying the ConnectionGroups in this Directory.
       * Returns the previous connection group for the given identifier, if found.
       * 
       * @param connectionGroup The connection group to add or update the
       *                        Directory with.
       * @return The previous connection group for the connection group
       *         identifier, if found.
       */
      public ConnectionGroup putConnectionGroup(ConnectionGroup connectionGroup) {
          return connectionGroups.put(connectionGroup.getIdentifier(), connectionGroup);
      }
      
      /**
       * An internal method for removing a ConnectionGroup from this Directory.
       * 
       * @param identifier The identifier of the ConnectionGroup to remove.
       * @return The previous connection group for the given identifier, if found.
       */
      public ConnectionGroup removeConnectionGroup(String identifier) {
          return connectionGroups.remove(identifier);
      }
  
  }
  