| /* |
| * 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.nio.BufferUnderflowException; |
| import java.nio.ByteBuffer; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * The Domain Name ANQP Element, IEEE802.11-2012 section 8.4.4.15. |
| * |
| * Format: |
| * | Domain Name Field #1 (optional) | ... |
| * variable |
| * |
| * Domain Name Field Format: |
| * | Length | Domain Name | |
| * 1 variable |
| */ |
| public class DomainNameElement extends ANQPElement { |
| private final List<String> mDomains; |
| |
| @VisibleForTesting |
| public DomainNameElement(List<String> domains) { |
| super(Constants.ANQPElementType.ANQPDomName); |
| mDomains = domains; |
| } |
| |
| /** |
| * Parse a DomainNameElement from the given buffer. |
| * |
| * @param payload The byte buffer to read from |
| * @return {@link DomainNameElement} |
| * @throws BufferUnderflowException |
| */ |
| public static DomainNameElement parse(ByteBuffer payload) { |
| List<String> domains = new ArrayList<>(); |
| while (payload.hasRemaining()) { |
| // Use latin-1 to decode for now - safe for ASCII and retains encoding |
| domains.add(ByteBufferReader.readStringWithByteLength( |
| payload, StandardCharsets.ISO_8859_1)); |
| } |
| return new DomainNameElement(domains); |
| } |
| |
| public List<String> getDomains() { |
| return Collections.unmodifiableList(mDomains); |
| } |
| |
| @Override |
| public boolean equals(Object thatObject) { |
| if (this == thatObject) { |
| return true; |
| } |
| if (!(thatObject instanceof DomainNameElement)) { |
| return false; |
| } |
| DomainNameElement that = (DomainNameElement) thatObject; |
| return mDomains.equals(that.mDomains); |
| } |
| |
| @Override |
| public int hashCode() { |
| return mDomains.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return "DomainName{" + |
| "mDomains=" + mDomains + |
| '}'; |
| } |
| } |