VenueNameElement.java revision 8ca4ac971a9b862fbd69c57af3a3c0029a6b9f4d
1/* 2 * Copyright (C) 2016 The Android Open Source Project 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 17package com.android.server.wifi.hotspot2.anqp; 18 19import java.net.ProtocolException; 20import java.nio.ByteBuffer; 21import java.util.ArrayList; 22import java.util.Collections; 23import java.util.List; 24 25/** 26 * The Venue Name ANQP Element, IEEE802.11-2012 section 8.4.4.4. 27 * 28 * Format: 29 * 30 * | Info ID | Length | Venue Info | Venue Name Duple #1 (optional) | ... 31 * 2 2 2 variable 32 * | Venue Name Duple #N (optional) | 33 * variable 34 * 35 * Refer to {@link com.android.server.wifi.anqp.I18Name} for the format of the Venue Name Duple 36 * fields. 37 * 38 * Note: The payload parsed by this class already has 'Info ID' and 'Length' stripped off. 39 */ 40public class VenueNameElement extends ANQPElement { 41 private final List<I18Name> mNames; 42 43 public VenueNameElement(Constants.ANQPElementType infoID, ByteBuffer payload) 44 throws ProtocolException { 45 super(infoID); 46 47 if (payload.remaining() < 2) { 48 throw new ProtocolException("Venue Name Element cannot contain less than 2 bytes"); 49 } 50 51 // Skip the Venue Info field, which we don't use. 52 for (int i = 0; i < Constants.VENUE_INFO_LENGTH; ++i) { 53 payload.get(); 54 } 55 56 mNames = new ArrayList<I18Name>(); 57 while (payload.hasRemaining()) { 58 mNames.add(new I18Name(payload)); 59 } 60 } 61 62 public List<I18Name> getNames() { 63 return Collections.unmodifiableList(mNames); 64 } 65 66 @Override 67 public String toString() { 68 return "VenueName{ mNames=" + mNames + "}"; 69 } 70} 71