1 /* 2 * Copyright 2009 Mike Cumings 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.kenai.jbosh; 18 19 /** 20 * Data type representing the getValue of the {@code ack} attribute of the 21 * {@code bosh} element. 22 */ 23 final class AttrAck extends AbstractAttr<String> { 24 25 /** 26 * Creates a new attribute object. 27 * 28 * @param val attribute getValue 29 * @throws BOSHException on parse or validation failure 30 */ AttrAck(final String val)31 private AttrAck(final String val) throws BOSHException { 32 super(val); 33 } 34 35 /** 36 * Creates a new attribute instance from the provided String. 37 * 38 * @param str string representation of the attribute 39 * @return attribute instance or {@code null} if provided string is 40 * {@code null} 41 * @throws BOSHException on parse or validation failure 42 */ createFromString(final String str)43 static AttrAck createFromString(final String str) 44 throws BOSHException { 45 if (str == null) { 46 return null; 47 } else { 48 return new AttrAck(str); 49 } 50 } 51 52 } 53