1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207

/**
 *  BlueCove - Java library for Bluetooth
 *  Copyright (C) 2008-2009 Michael Lifshits
 *  Copyright (C) 2008-2009 Vlad Skarzhevskyy
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.
 *
 *  @author vlads
 *  @version $Id$
 */
package com.intel.bluetooth.emu;

import java.io.IOException;
import java.io.InterruptedIOException;

import javax.bluetooth.BluetoothConnectionException;

import com.intel.bluetooth.DebugLog;
import com.intel.bluetooth.RemoteDeviceHelper;
import com.intel.bluetooth.Utils;

/**
 * 
 */
class ServiceListener {

	private static final String RFCOMM_PREFIX = "rfcomm-";

	private static final String L2CAP_PREFIX = "l2cap-";

	private final String portID;

	private boolean rfcomm;

	private Object lock = new Object();

	private Device serverDevice;

	private static long connectionCount = 0;

	private boolean connected = false;

	private boolean closed = false;

	private boolean interrupted = false;

	private long connectionId = 0;

	private int serverSecurityOpt;

	private int serverReceiveMTU;

	static String rfPrefix(int channel) {
		return RFCOMM_PREFIX + channel;
	}

	static String l2Prefix(int pcm) {
		return L2CAP_PREFIX + Integer.toHexString(pcm);
	}

	ServiceListener(String portID) {
		this.portID = portID;
		this.rfcomm = this.portID.startsWith(RFCOMM_PREFIX);
	}

	String getPortID() {
		return this.portID;
	}

	long accept(Device serverDevice, boolean authenticate, boolean encrypt, int serverReceiveMTU) throws IOException {
		this.serverDevice = serverDevice;
		this.serverReceiveMTU = serverReceiveMTU;
		this.serverSecurityOpt = Utils.securityOpt(authenticate, encrypt);

		serverDevice.serviceListenerAccepting(getPortID());
		while ((!closed) && (!interrupted) && (!connected)) {
			synchronized (lock) {
				try {
					lock.wait();
				} catch (InterruptedException e) {
					throw new InterruptedIOException("accept interrupted");
				}
			}
		}
		if (closed || interrupted || !connected) {
			throw new InterruptedIOException("accept closed");
		}
		return connectionId;
	}

	long connect(Device clientDevice, boolean authenticate, boolean encrypt, int cilentReceiveMTU, long timeout)
			throws IOException {
		ConnectionBuffer cb = null;
		boolean clientConnected = false;
		try {
			int securityOpt = Utils.securityOpt(authenticate, encrypt);
			if (this.serverSecurityOpt > securityOpt) {
				securityOpt = this.serverSecurityOpt;
			}

			int bsize = DeviceManagerServiceImpl.configuration.getConnectionBufferSize();
			boolean senderFlushBlock = DeviceManagerServiceImpl.configuration.isSenderFlushBlock();
			ConnectedInputStream cis = new ConnectedInputStream(bsize, senderFlushBlock);
			ConnectedOutputStream sos = new ConnectedOutputStream(cis);

			ConnectedInputStream sis = new ConnectedInputStream(bsize, senderFlushBlock);
			ConnectedOutputStream cos = new ConnectedOutputStream(sis);

			ConnectionBuffer sb;
			if (this.rfcomm) {
				cb = new ConnectionBufferRFCOMM(serverDevice.getDescriptor().getAddress(), getPortID(), cis, cos);
				sb = new ConnectionBufferRFCOMM(clientDevice.getDescriptor().getAddress(), getPortID(), sis, sos);
			} else {
				cb = new ConnectionBufferL2CAP(serverDevice.getDescriptor().getAddress(), getPortID(), cis, cos,
						this.serverReceiveMTU);
				sb = new ConnectionBufferL2CAP(clientDevice.getDescriptor().getAddress(), getPortID(), sis, sos,
						cilentReceiveMTU);
			}
			cb.connect(sb);
			cb.setSecurityOpt(securityOpt);
			sb.setSecurityOpt(securityOpt);

			sb.setServerSide(true);

			long id;
			synchronized (ServiceListener.class) {
				connectionCount++;
				id = connectionCount;
			}
			MonitorConnection monitor = new MonitorConnection(clientDevice.getDescriptor().getAddress(), serverDevice
					.getDescriptor().getAddress(), getPortID(), id);
			cb.setMonitor(monitor.getClientBuffer());
			sb.setMonitor(monitor.getServerBuffer());

			serverDevice.addConnectionBuffer(id, sb);
			connectionId = id;
			connected = true;
			synchronized (lock) {
				lock.notifyAll();
			}
			long endOfDellay = System.currentTimeMillis() + timeout;
			while ((!sb.isServerAccepted()) && (!sb.isClosed())) {
				long timeleft = endOfDellay - System.currentTimeMillis();
				if (timeleft <= 0) {
					throw new BluetoothConnectionException(BluetoothConnectionException.TIMEOUT, "Service "
							+ getPortID() + " not ready");
				}
				synchronized (sb) {
					try {
						sb.wait(timeleft);
					} catch (InterruptedException e) {
						throw new InterruptedIOException();
					}
				}
			}
			if (!sb.isServerAccepted()) {
				throw new BluetoothConnectionException(BluetoothConnectionException.FAILED_NOINFO,
						"Connection rejected");
			}

			MonitoringServiceImpl.registerConnection(monitor);
			clientDevice.addConnectionBuffer(id, cb);
			clientConnected = true;

			StringBuffer logMsg = new StringBuffer();
			logMsg.append(RemoteDeviceHelper.getBluetoothAddress(clientDevice.getDescriptor().getAddress()));
			logMsg.append(" connected to ");
			logMsg.append(RemoteDeviceHelper.getBluetoothAddress(serverDevice.getDescriptor().getAddress()));
			logMsg.append(" ").append(this.getPortID());
			DebugLog.debug(logMsg.toString());

			return id;
		} finally {
			if (!connected) {
				interrupted = true;
			}
			if (!clientConnected) {
				cb.close();
			}
			synchronized (lock) {
				lock.notifyAll();
			}
		}
	}

	void close() {
		closed = true;
		synchronized (lock) {
			lock.notifyAll();
		}
	}
}