content: /*
   * 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 java.nio.BufferUnderflowException;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  /**
   * The Connection Capability vendor specific ANQP Element,
   * Wi-Fi Alliance Hotspot 2.0 (Release 2) Technical Specification - Version 5.00,
   * section 4.5
   *
   * Format:
   * | ProtoPort Tuple #1 (optiional) | ....
   *                4
   */
  public class HSConnectionCapabilityElement extends ANQPElement {
      private final List<ProtocolPortTuple> mStatusList;
  
      @VisibleForTesting
      public HSConnectionCapabilityElement(List<ProtocolPortTuple> statusList) {
          super(Constants.ANQPElementType.HSConnCapability);
          mStatusList = statusList;
      }
  
      /**
       * Parse a HSConnectionCapabilityElement from the given buffer.
       *
       * @param payload The byte buffer to read from
       * @return {@link HSConnectionCapabilityElement}
       * @throws BufferUnderflowException
       */
      public static HSConnectionCapabilityElement parse(ByteBuffer payload) {
          List<ProtocolPortTuple> statusList = new ArrayList<>();
          while (payload.hasRemaining()) {
              statusList.add(ProtocolPortTuple.parse(payload));
          }
          return new HSConnectionCapabilityElement(statusList);
      }
  
      public List<ProtocolPortTuple> getStatusList() {
          return Collections.unmodifiableList(mStatusList);
      }
  
      @Override
      public boolean equals(Object thatObject) {
          if (this == thatObject) {
              return true;
          }
          if (!(thatObject instanceof HSConnectionCapabilityElement)) {
              return false;
          }
          HSConnectionCapabilityElement that = (HSConnectionCapabilityElement) thatObject;
          return mStatusList.equals(that.mStatusList);
      }
  
      @Override
      public int hashCode() {
          return mStatusList.hashCode();
      }
  
      @Override
      public String toString() {
          return "HSConnectionCapability{" +
                  "mStatusList=" + mStatusList +
                  '}';
      }
  }
  