1 package org.apache.archiva.configuration.functors; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import org.apache.archiva.configuration.ProxyConnectorConfiguration; 23 24 import java.util.Comparator; 25 26 /** 27 * 28 * Was marked as deprecated before, but is still used. 29 * 30 */ 31 public class ProxyConnectorConfigurationOrderComparator 32 implements Comparator<ProxyConnectorConfiguration> 33 { 34 private static ProxyConnectorConfigurationOrderComparator INSTANCE = 35 new ProxyConnectorConfigurationOrderComparator(); 36 37 @Override 38 public int compare( ProxyConnectorConfigurationorg/apache/archiva/configuration/ProxyConnectorConfiguration.html#ProxyConnectorConfiguration">ProxyConnectorConfiguration o1, ProxyConnectorConfiguration o2 ) 39 { 40 if ( o1 == null && o2 == null ) 41 { 42 return 0; 43 } 44 45 // Ensure null goes to end of list. 46 if ( o1 == null && o2 != null ) 47 { 48 return 1; 49 } 50 51 if ( o1 != null && o2 == null ) 52 { 53 return -1; 54 } 55 56 // Ensure 0 (unordered) goes to end of list. 57 if ( o1.getOrder() == 0 && o2.getOrder() != 0 ) 58 { 59 return 1; 60 } 61 62 if ( o1.getOrder() != 0 && o2.getOrder() == 0 ) 63 { 64 return -1; 65 } 66 67 return o1.getOrder() - o2.getOrder(); 68 } 69 70 public static ProxyConnectorConfigurationOrderComparator getInstance() 71 { 72 return INSTANCE; 73 } 74 }