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 
17 package com.android.server.wifi.hotspot2.anqp;
18 
19 import com.android.internal.annotations.VisibleForTesting;
20 
21 import java.nio.ByteBuffer;
22 import java.util.Arrays;
23 
24 /**
25  * An object holding the raw octets of an ANQP element as provided by the wpa_supplicant.
26  */
27 public class RawByteElement extends ANQPElement {
28     private final byte[] mPayload;
29 
30     @VisibleForTesting
RawByteElement(Constants.ANQPElementType infoID, byte[] payload)31     public RawByteElement(Constants.ANQPElementType infoID, byte[] payload) {
32         super(infoID);
33         mPayload = payload;
34     }
35 
36     /**
37      * Parse a RawByteElement from the given buffer.
38      *
39      * @param payload The byte buffer to read from
40      * @return {@link HSConnectionCapabilityElement}
41      */
parse(Constants.ANQPElementType infoID, ByteBuffer payload)42     public static RawByteElement parse(Constants.ANQPElementType infoID, ByteBuffer payload) {
43         byte[] rawBytes = new byte[payload.remaining()];
44         if (payload.hasRemaining()) {
45             payload.get(rawBytes);
46         }
47         return new RawByteElement(infoID, rawBytes);
48     }
49 
getPayload()50     public byte[] getPayload() {
51         return mPayload;
52     }
53 
54     @Override
equals(Object thatObject)55     public boolean equals(Object thatObject) {
56         if (this == thatObject) {
57             return true;
58         }
59         if (!(thatObject instanceof RawByteElement)) {
60             return false;
61         }
62         RawByteElement that = (RawByteElement) thatObject;
63         return getID() == that.getID() && Arrays.equals(mPayload, that.mPayload);
64     }
65 
66     @Override
hashCode()67     public int hashCode() {
68         return Arrays.hashCode(mPayload);
69     }
70 }
71