/*

  * Copyright 2010 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.osedu.org/licenses/ECL-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.kuali.student.contract.model.util;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.Comparator;

 import java.util.List;

 import org.kuali.student.contract.model.Service;

 /**

  *

  * @author nwright

  */

 public class ServicesFilterArrangeByKeys implements ServicesFilter

 {

  List<String> keys;

  public ServicesFilterArrangeByKeys (List<String> keys)

  {

   this.keys = keys;

   for (int i = 0; i < keys.size (); i ++)

   {

    keys.set (i, keys.get (i).toLowerCase ());

   }

  }

  @Override

  public List<Service> filter (List<Service> services)

  {

   List<Service> sorted = new ArrayList (services);

   Collections.sort (sorted, new CompareService ());

   return sorted;

  }

  public class CompareService implements Comparator<Service>

  {

   public int compare (Service service1, Service service2)

   {

    int index1 = keys.indexOf (service1.getKey ().toLowerCase ());

    int index2 = keys.indexOf (service2.getKey ().toLowerCase ());

    if (index1 < index2)

    {

     return -1;

    }

    if (index2 < index1)

    {

     return +1;

    }

    return 0;

   }

  }

 }