Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 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 | */ |
| 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 | */ |
| 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 | } |