1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.util; 19 20 import org.apache.commons.logging.Log; 21 import org.apache.commons.logging.LogFactory; 22 23 public class CombinedIPWhiteList implements IPList { 24 25 public static final Log LOG = LogFactory.getLog(CombinedIPWhiteList.class); 26 private static final String LOCALHOST_IP = "127.0.0.1"; 27 28 private final IPList[] networkLists; 29 CombinedIPWhiteList(String fixedWhiteListFile, String variableWhiteListFile, long cacheExpiryInSeconds)30 public CombinedIPWhiteList(String fixedWhiteListFile, 31 String variableWhiteListFile, long cacheExpiryInSeconds) { 32 33 IPList fixedNetworkList = new FileBasedIPList(fixedWhiteListFile); 34 if (variableWhiteListFile != null){ 35 IPList variableNetworkList = new CacheableIPList( 36 new FileBasedIPList(variableWhiteListFile),cacheExpiryInSeconds); 37 networkLists = new IPList[] {fixedNetworkList, variableNetworkList}; 38 } 39 else { 40 networkLists = new IPList[] {fixedNetworkList}; 41 } 42 } 43 @Override isIn(String ipAddress)44 public boolean isIn(String ipAddress) { 45 if (ipAddress == null) { 46 throw new IllegalArgumentException("ipAddress is null"); 47 } 48 49 if (LOCALHOST_IP.equals(ipAddress)) { 50 return true; 51 } 52 53 for (IPList networkList:networkLists) { 54 if (networkList.isIn(ipAddress)) { 55 return true; 56 } 57 } 58 return false; 59 } 60 } 61