/*************************************************************************
 * Copyright 2009-2012 Eucalyptus Systems, Inc.
 *
 * 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; version 3 of the License.
 *
 * 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/.
 *
 * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
 * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
 * additional information or have any questions.
 *
 * This file may incorporate work covered under the following copyright
 * and permission notice:
 *
 *   Software License Agreement (BSD License)
 *
 *   Copyright (c) 2008, Regents of the University of California
 *   All rights reserved.
 *
 *   Redistribution and use of this software in source and binary forms,
 *   with or without modification, are permitted provided that the
 *   following conditions are met:
 *
 *     Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *     Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer
 *     in the documentation and/or other materials provided with the
 *     distribution.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 *   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 *   BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 *   ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *   POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
 *   THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
 *   COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
 *   AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
 *   IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
 *   SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
 *   WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
 *   REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
 *   IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
 *   NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
 ************************************************************************/

package com.eucalyptus.webui.client.activity;

import java.util.logging.Logger;
import com.eucalyptus.webui.client.ClientFactory;
import com.eucalyptus.webui.client.place.LogoutPlace;
import com.eucalyptus.webui.client.service.EucalyptusServiceException;
import com.eucalyptus.webui.client.service.QuickLink;
import com.google.gwt.http.client.URL;

public class ActivityUtil {
  
  private static final Logger LOG = Logger.getLogger( ActivityUtil.class.getName( ) );
  
  /**
   * Update the highlighted quick link based on the current search.
   * 
   * @param clientFactory
   */
  public static void updateDirectorySelection( ClientFactory clientFactory ) {
    String currentSearch = getCurrentSearch( clientFactory );
    LOG.info( "Updating directory selection: current search is " + currentSearch );
    QuickLink link = clientFactory.getSessionData( ).lookupQuickLink( currentSearch );
    LOG.info( "Updating directory selection: found quick link " + ( link == null ? "NONE" : link.getName( ) ) );
    clientFactory.getShellView( ).getDirectoryView( ).changeSelection( link );
  }
  
  /**
   * Find out the current search using the history.
   * 
   * @param clientFactory
   * @return
   */
  public static String getCurrentSearch( ClientFactory clientFactory ) {
    return URL.decode( clientFactory.getMainHistorian( ).getToken( ) );
  }
  
  /**
   * Log out if session is invalid
   * @param clientFactory
   */
  public static void logoutForInvalidSession( ClientFactory clientFactory, Throwable exception ) {
    if ( EucalyptusServiceException.INVALID_SESSION.equals( exception.getMessage( ) ) ) {
      clientFactory.getLocalSession( ).clearSession( );
      clientFactory.getMainPlaceController( ).goTo( new LogoutPlace( ) );
    }
  }
  
}
