/*
    * Copyright 2005-2007 The Kuali Foundation
    *
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
   *
   * 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.kuali.rice.kew.rule;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.kuali.rice.kew.engine.RouteContext;
  import org.kuali.rice.kew.identity.PrincipalId;
  
  
  /**
   * RoleAttribute that exposes an INITIATOR abstract role which resolves to the
   * initiator of the document.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class InitiatorRoleAttribute extends UnqualifiedRoleAttribute {
      private static final String INITIATOR_ROLE_KEY = "INITIATOR";
      private static final String INITIATOR_ROLE_LABEL = "Initiator";
  
      private static final Role ROLE = new Role(InitiatorRoleAttribute.class, INITIATOR_ROLE_KEY, INITIATOR_ROLE_LABEL);
      private static final List<Role> ROLES;
      static {
          ArrayList<Role> roles = new ArrayList<Role>(1);
          roles.add(ROLE);
          ROLES = Collections.unmodifiableList(roles);
      }
  
      public InitiatorRoleAttribute() {
          super(ROLES);
      }
  
      public ResolvedQualifiedRole resolveRole(RouteContext routeContext, String roleName) {
          List members = new ArrayList(1);
          members.add(new PrincipalId(routeContext.getDocument().getInitiatorWorkflowId()));
          return new ResolvedQualifiedRole(INITIATOR_ROLE_LABEL, members);
      }
  }