001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.util; 018 019 import java.util.Comparator; 020 021 import org.apache.camel.Ordered; 022 023 /** 024 * A comparator to sort {@link Ordered} 025 * 026 * @version 027 */ 028 public final class OrderedComparator implements Comparator<Object> { 029 030 private final boolean reverse; 031 032 public OrderedComparator() { 033 this(false); 034 } 035 036 public OrderedComparator(boolean reverse) { 037 this.reverse = reverse; 038 } 039 040 public int compare(Object o1, Object o2) { 041 Integer num1 = 0; 042 Integer num2 = 0; 043 if (o1 instanceof Ordered) { 044 num1 = ((Ordered) o1).getOrder(); 045 } 046 if (o2 instanceof Ordered) { 047 num2 = ((Ordered) o2).getOrder(); 048 } 049 int answer = num1.compareTo(num2); 050 return reverse ? -1 * answer : answer; 051 } 052 }