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, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 package org.apache.james.jspf.core; 21 22 23 import org.apache.james.jspf.core.exceptions.TimeoutException; 24 25 import java.util.List; 26 27 /** 28 * Represent a DNSResponse 29 * 30 */ 31 public class DNSResponse { 32 33 private List response; 34 35 private TimeoutException exception; 36 37 public DNSResponse(TimeoutException exception) { 38 this.exception = exception; 39 this.response = null; 40 } 41 42 public DNSResponse(List response) { 43 this.exception = null; 44 this.response = response; 45 } 46 47 /** 48 * Returns the DNS response 49 * 50 * @return the dns repsonse 51 * @throws TimeoutException get thrown if an timeout was returned while tried to 52 * process a dns request 53 */ 54 public List getResponse() throws TimeoutException { 55 if (exception != null) { 56 throw exception; 57 } else { 58 return response; 59 } 60 } 61 62 /** 63 * @see java.lang.Object#toString() 64 */ 65 public String toString() { 66 if (exception != null) { 67 return "EXCEPTION!"; 68 } else if (response != null) { 69 return response.toString(); 70 } else { 71 return "NULL?"; 72 } 73 } 74 }