| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.wifi.hotspot2.anqp; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.server.wifi.ByteBufferReader; |
| |
| import java.net.ProtocolException; |
| import java.nio.BufferUnderflowException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| |
| /** |
| * The NAI (Network Access Identifier) Realm ANQP Element, IEEE802.11-2012 section 8.4.4.10. |
| * |
| * Format: |
| * | NAI Realm Count (optional) | NAI Realm Data #1 (optional) | .... |
| * 2 variable |
| */ |
| public class NAIRealmElement extends ANQPElement { |
| private final List<NAIRealmData> mRealmDataList; |
| |
| @VisibleForTesting |
| public NAIRealmElement(List<NAIRealmData> realmDataList) { |
| super(Constants.ANQPElementType.ANQPNAIRealm); |
| mRealmDataList = realmDataList; |
| } |
| |
| /** |
| * Parse a NAIRealmElement from the given buffer. |
| * |
| * @param payload The byte buffer to read from |
| * @return {@link NAIRealmElement} |
| * @throws BufferUnderflowException |
| */ |
| public static NAIRealmElement parse(ByteBuffer payload) |
| throws ProtocolException { |
| List<NAIRealmData> realmDataList = new ArrayList<>(); |
| if (payload.hasRemaining()) { |
| int count = (int) ByteBufferReader.readInteger(payload, ByteOrder.LITTLE_ENDIAN, 2) |
| & 0xFFFF; |
| while (count > 0) { |
| realmDataList.add(NAIRealmData.parse(payload)); |
| count--; |
| } |
| } |
| return new NAIRealmElement(realmDataList); |
| } |
| |
| public List<NAIRealmData> getRealmDataList() { |
| return Collections.unmodifiableList(mRealmDataList); |
| } |
| |
| @Override |
| public boolean equals(Object thatObject) { |
| if (this == thatObject) { |
| return true; |
| } |
| if (!(thatObject instanceof NAIRealmElement)) { |
| return false; |
| } |
| NAIRealmElement that = (NAIRealmElement) thatObject; |
| return mRealmDataList.equals(that.mRealmDataList); |
| } |
| |
| @Override |
| public int hashCode() { |
| return mRealmDataList.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return "NAIRealmElement{mRealmDataList=" + mRealmDataList + "}"; |
| } |
| } |