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      1 /*
      2  * Copyright (C) 2011 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.nfc;
     18 
     19 import android.util.Log;
     20 
     21 import java.io.IOException;
     22 import java.util.LinkedList;
     23 import java.util.List;
     24 
     25 public class MockLlcpSocket implements DeviceHost.LlcpSocket {
     26     private static final String TAG = "mockLlcpSocket";
     27     private MockLlcpSocket mPairedSocket;
     28     private List<byte[]> mReceivedPackets = new LinkedList<byte[]>();
     29     private boolean mClosed = false;
     30 
     31     @Override
     32     public void close() throws IOException {
     33         mClosed = true;
     34         mPairedSocket.mClosed = true;
     35     }
     36 
     37     @Override
     38     public void connectToSap(int sap) throws IOException {
     39         throw new UnsupportedOperationException("Use MockLlcpSocket.bind(client, server)");
     40     }
     41 
     42     @Override
     43     public void send(byte[] data) throws IOException {
     44         if (mClosed || mPairedSocket == null) {
     45             throw new IOException("Socket not connected");
     46         }
     47         synchronized (mPairedSocket.mReceivedPackets) {
     48             Log.d(TAG, "sending packet");
     49             mPairedSocket.mReceivedPackets.add(data);
     50             mPairedSocket.mReceivedPackets.notify();
     51         }
     52     }
     53 
     54     @Override
     55     public int receive(byte[] receiveBuffer) throws IOException {
     56         synchronized (mReceivedPackets) {
     57             while (!mClosed && mReceivedPackets.size() == 0) {
     58                 try {
     59                     mReceivedPackets.wait(1000);
     60                 } catch (InterruptedException e) {}
     61             }
     62             if (mClosed) {
     63                 throw new IOException("Socket closed.");
     64             }
     65             byte[] arr = mReceivedPackets.remove(0);
     66             System.arraycopy(arr, 0, receiveBuffer, 0, arr.length);
     67             return arr.length;
     68         }
     69     }
     70 
     71     public static void bind(MockLlcpSocket client, MockLlcpSocket server) {
     72         client.mPairedSocket = server;
     73         server.mPairedSocket = client;
     74     }
     75 
     76     @Override
     77     public void connectToService(String serviceName) throws IOException {
     78         throw new UnsupportedOperationException();
     79     }
     80 
     81     @Override
     82     public int getRemoteMiu() {
     83         throw new UnsupportedOperationException();
     84     }
     85 
     86     @Override
     87     public int getRemoteRw() {
     88         throw new UnsupportedOperationException();
     89     }
     90 
     91     @Override
     92     public int getLocalSap() {
     93         throw new UnsupportedOperationException();
     94     }
     95 
     96     @Override
     97     public int getLocalMiu() {
     98         throw new UnsupportedOperationException();
     99     }
    100 
    101     @Override
    102     public int getLocalRw() {
    103         throw new UnsupportedOperationException();
    104     }
    105 }