/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *         http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.argeo.cms.ui.workbench.util;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  
  import org.argeo.cms.auth.CurrentUser;
  import org.eclipse.ui.AbstractSourceProvider;
  
  /**
   * Provides the roles of the current user as a variable to be used for activity
   * binding
   */
  public class RolesSourceProvider extends AbstractSourceProvider {
  	public final static String ROLES_VARIABLE = "roles";
  	private final static String[] PROVIDED_SOURCE_NAMES = new String[] { ROLES_VARIABLE };
  
  	public Map<String, Set<String>> getCurrentState() {
  		Map<String, Set<String>> stateMap = new HashMap<String, Set<String>>();
  		stateMap.put(ROLES_VARIABLE, CurrentUser.roles());
  		return stateMap;
  	}
  
  	public String[] getProvidedSourceNames() {
  		return PROVIDED_SOURCE_NAMES;
  	}
  
  	public void updateRoles() {
  		fireSourceChanged(0, getCurrentState());
  	}
  
  	public void dispose() {
  	}
  }