package org.apache.archiva.redback.integration.util;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import java.util.Comparator;
  
  import org.apache.archiva.redback.rbac.TemplatedRole;
  
  /**
   * TemplatedRoleSorter
   *
   * @author <a href="hisidro@exist.com">Henry Isidro</a>
   *
   */
  public class TemplatedRoleSorter
      implements Comparator<TemplatedRole>
  {
      public int compare( TemplatedRole r1, TemplatedRole r2 )
      {
          if ( ( r1 == null ) && ( r2 == null ) )
          {
              return 0;
          }
  
          if ( ( r1 == null ) && ( r2 != null ) )
          {
              return -1;
          }
  
          if ( ( r1 != null ) && ( r2 == null ) )
          {
              return 1;
          }
  
          if ( r1.getResource().equals( r2.getResource() ) )
          {
              return r1.getTemplateNamePrefix().compareTo( r2.getTemplateNamePrefix() );
          }
          else
          {
              return r1.getResource().compareToIgnoreCase( r2.getResource() );
          }
      }
  }