Mercurial > hg > blitz_stable
annotate src/com/go/trove/net/FilteredSocket.java @ 35:6f68e94c1fb8 default tip
Add CondensedStats monitoring utility, equivalent to vmstat
author | Dominic Cleal <dominic-cleal@cdo2.com> |
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date | Thu, 05 Aug 2010 11:07:25 +0100 |
parents | 3dc0c5604566 |
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rev | line source |
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1 /* ==================================================================== |
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2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group |
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3 * ==================================================================== |
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4 * The Tea Software License, Version 1.1 |
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5 * |
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6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. |
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7 * |
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8 * Redistribution and use in source and binary forms, with or without |
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9 * modification, are permitted provided that the following conditions |
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10 * are met: |
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11 * |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * |
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15 * 2. Redistributions in binary form must reproduce the above copyright |
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16 * notice, this list of conditions and the following disclaimer in |
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17 * the documentation and/or other materials provided with the |
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18 * distribution. |
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19 * |
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20 * 3. The end-user documentation included with the redistribution, |
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21 * if any, must include the following acknowledgment: |
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22 * "This product includes software developed by the |
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23 * Walt Disney Internet Group (http://opensource.go.com/)." |
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24 * Alternately, this acknowledgment may appear in the software itself, |
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25 * if and wherever such third-party acknowledgments normally appear. |
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26 * |
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27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must |
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28 * not be used to endorse or promote products derived from this |
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29 * software without prior written permission. For written |
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30 * permission, please contact opensource@dig.com. |
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31 * |
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32 * 5. Products derived from this software may not be called "Tea", |
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33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", |
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34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior |
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35 * written permission of the Walt Disney Internet Group. |
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36 * |
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37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS |
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41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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48 * ==================================================================== |
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49 * |
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50 * For more information about Tea, please see http://opensource.go.com/. |
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51 */ |
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52 |
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53 package com.go.trove.net; |
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54 |
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55 import java.net.*; |
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56 import java.io.*; |
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57 |
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58 /****************************************************************************** |
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59 * A Socket wrapper that passes all calls to an internal Socket. This class is |
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60 * designed for subclasses to override or hook into the behavior of a Socket |
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61 * instance. |
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62 * |
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63 * @author Brian S O'Neill |
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64 * @version |
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65 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 00/12/05 <!-- $--> |
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66 */ |
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67 public class FilteredSocket extends Socket { |
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68 protected final Socket mSocket; |
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69 |
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70 public FilteredSocket(Socket socket) throws SocketException { |
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71 super(new Impl(socket)); |
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72 mSocket = socket; |
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73 } |
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74 |
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75 // Implementation note: Java's socket API could use some improvement. |
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76 // For example, java.net.Socket should be an interface. This would avoid |
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77 // needing the ugly SocketImpl class provided instead. |
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78 |
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79 private static class Impl extends SocketImpl { |
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80 private Socket mSocket; |
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81 |
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82 public Impl(Socket socket) { |
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83 if (socket == null) { |
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84 throw new IllegalArgumentException("Socket is null"); |
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85 } |
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86 mSocket = socket; |
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87 } |
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88 |
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89 public void setOption(int optId, Object value) throws SocketException { |
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90 switch (optId) { |
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91 case TCP_NODELAY: |
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92 mSocket.setTcpNoDelay(((Boolean)value).booleanValue()); |
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93 return; |
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94 case SO_LINGER: |
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95 if (value instanceof Boolean) { |
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96 mSocket.setSoLinger(((Boolean)value).booleanValue(), 0); |
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97 } |
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98 else { |
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99 mSocket.setSoLinger(true, ((Integer)value).intValue()); |
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100 } |
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101 return; |
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102 case SO_TIMEOUT: |
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103 mSocket.setSoTimeout(((Integer)value).intValue()); |
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104 return; |
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105 case SO_SNDBUF: |
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106 mSocket.setSendBufferSize(((Integer)value).intValue()); |
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107 return; |
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108 case SO_RCVBUF: |
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109 mSocket.setReceiveBufferSize(((Integer)value).intValue()); |
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110 return; |
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111 case SO_BINDADDR: |
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112 case SO_REUSEADDR: |
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113 case IP_MULTICAST_IF: |
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114 default: |
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115 throw new SocketException("Invalid option: " + optId); |
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116 } |
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117 } |
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118 |
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119 public Object getOption(int optId) throws SocketException { |
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120 switch (optId) { |
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121 case TCP_NODELAY: |
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122 return mSocket.getTcpNoDelay() ? Boolean.TRUE : Boolean.FALSE; |
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123 case SO_BINDADDR: |
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124 return mSocket.getLocalAddress(); |
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125 case SO_LINGER: |
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126 return new Integer(mSocket.getSoLinger()); |
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127 case SO_TIMEOUT: |
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128 return new Integer(mSocket.getSoTimeout()); |
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129 case SO_SNDBUF: |
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130 return new Integer(mSocket.getSendBufferSize()); |
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131 case SO_RCVBUF: |
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132 return new Integer(mSocket.getReceiveBufferSize()); |
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133 case SO_REUSEADDR: |
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134 case IP_MULTICAST_IF: |
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135 default: |
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136 throw new SocketException("Invalid option: " + optId); |
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137 } |
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138 } |
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139 |
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140 protected void create(boolean stream) throws IOException { |
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141 error(); |
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142 } |
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143 |
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144 protected void connect(String host, int port) throws IOException { |
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145 error(); |
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146 } |
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147 |
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148 protected void connect(InetAddress host, int port) throws IOException { |
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149 error(); |
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150 } |
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151 |
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152 protected void connect(SocketAddress host, |
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153 int port) throws IOException { |
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154 error(); |
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155 } |
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156 |
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157 protected void bind(InetAddress host, int port) throws IOException { |
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158 error(); |
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159 } |
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160 |
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161 protected void listen(int backlog) throws IOException { |
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162 error(); |
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163 } |
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164 |
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165 protected void accept(SocketImpl s) throws IOException { |
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166 error(); |
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167 } |
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168 |
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169 protected InputStream getInputStream() throws IOException { |
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170 return mSocket.getInputStream(); |
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171 } |
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172 |
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173 protected OutputStream getOutputStream() throws IOException { |
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174 return mSocket.getOutputStream(); |
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175 } |
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176 |
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177 protected int available() throws IOException { |
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178 return getInputStream().available(); |
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179 } |
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180 |
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181 protected void close() throws IOException { |
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182 mSocket.close(); |
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183 } |
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184 |
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185 protected InetAddress getInetAddress() { |
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186 return mSocket.getInetAddress(); |
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187 } |
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188 |
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189 protected int getPort() { |
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190 return mSocket.getPort(); |
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191 } |
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192 |
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193 protected int getLocalPort() { |
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194 return mSocket.getLocalPort(); |
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195 } |
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196 |
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197 private void error() throws IOException { |
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198 throw new IOException("Socket already connected"); |
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199 } |
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200 |
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201 protected void sendUrgentData(int aByte) throws IOException { |
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202 throw new UnsupportedOperationException(); |
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203 } |
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204 } |
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205 } |