/*

  * 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;

         }

     }

 }