| /* |
| * 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. |
| */ |
| |
| package org.apache.felix.ipojo.runtime.core.test.components.comparator; |
| |
| import org.osgi.framework.ServiceReference; |
| |
| import java.util.Comparator; |
| |
| public class GradeComparator implements Comparator { |
| |
| public int compare(Object arg0, Object arg1) { |
| ServiceReference ref0 = null; |
| ServiceReference ref1 = null; |
| Integer grade0 = null; |
| Integer grade1 = null; |
| if (arg0 instanceof ServiceReference) { |
| ref0 = (ServiceReference) arg0; |
| grade0 = (Integer) ref0.getProperty("grade"); |
| } |
| if (arg1 instanceof ServiceReference) { |
| ref1 = (ServiceReference) arg1; |
| grade1 = (Integer) ref1.getProperty("grade"); |
| } |
| |
| if (ref0 != null && ref1 != null |
| && grade0 != null && grade1 != null) { |
| return grade1.compareTo(grade0); // Best grade first. |
| } else { |
| return 0; // Equals |
| } |
| } |
| |
| } |