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      1 /*
      2  * Copyright (C) 2010 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 android.nfc;
     18 
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 
     22 /**
     23  * Represents a LLCP packet received in a LLCP Connectionless communication;
     24  * @hide
     25  */
     26 public class LlcpPacket implements Parcelable {
     27 
     28     private final int mRemoteSap;
     29 
     30     private final byte[] mDataBuffer;
     31 
     32     /**
     33      * Creates a LlcpPacket to be sent to a remote Service Access Point number
     34      * (SAP)
     35      *
     36      * @param sap Remote Service Access Point number
     37      * @param data Data buffer
     38      */
     39     public LlcpPacket(int sap, byte[] data) {
     40         mRemoteSap = sap;
     41         mDataBuffer = data;
     42     }
     43 
     44     /**
     45      * Returns the remote Service Access Point number
     46      */
     47     public int getRemoteSap() {
     48         return mRemoteSap;
     49     }
     50 
     51     /**
     52      * Returns the data buffer
     53      */
     54     public byte[] getDataBuffer() {
     55         return mDataBuffer;
     56     }
     57 
     58     public int describeContents() {
     59         return 0;
     60     }
     61 
     62     public void writeToParcel(Parcel dest, int flags) {
     63         dest.writeInt(mRemoteSap);
     64         dest.writeInt(mDataBuffer.length);
     65         dest.writeByteArray(mDataBuffer);
     66     }
     67 
     68     public static final Parcelable.Creator<LlcpPacket> CREATOR = new Parcelable.Creator<LlcpPacket>() {
     69         public LlcpPacket createFromParcel(Parcel in) {
     70             // Remote SAP
     71             short sap = (short)in.readInt();
     72 
     73             // Data Buffer
     74             int dataLength = in.readInt();
     75             byte[] data = new byte[dataLength];
     76             in.readByteArray(data);
     77 
     78             return new LlcpPacket(sap, data);
     79         }
     80 
     81         public LlcpPacket[] newArray(int size) {
     82             return new LlcpPacket[size];
     83         }
     84     };
     85 }