Mercurial > hg > blitz_stable

annotate src/com/go/trove/net/SocketFactory.java @ 27:511648fa4d64 Version 2.1

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Version to 2.1
author Dan Creswell <dan.creswell@gmail.com>
date Mon, 04 Jan 2010 13:00:40 +0000
parents 3dc0c5604566
children
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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
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57 /******************************************************************************
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58 * Allows client sockets to be created or recycled.
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59 *
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60 * @author Brian S O'Neill
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61 * @version
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62 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 00/12/05 <!-- $-->
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63 */
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64 public interface SocketFactory {
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65 /**
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66 * Returns the InetAddress and port that this factory will most likely
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67 * connect to. If the address isn't precisely known, its value is 0.0.0.0.
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68 * If the port isn't known, its value is -1.
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69 */
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70 public InetAddressAndPort getInetAddressAndPort();
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71
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72 /**
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73 * Returns the InetAddress and port that this factory will most likely
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74 * connect to. If the address isn't precisely known, its value is 0.0.0.0.
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75 * If the port isn't known, its value is -1.
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76 *
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77 * @param session Object whose hashcode might be used to select a specific
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78 * connection if factory is distributed. If null, then no session is used.
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79 */
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80 public InetAddressAndPort getInetAddressAndPort(Object session);
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81
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82 /**
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83 * Returns the default timeout for creating or getting sockets or -1 if
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84 * infinite.
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85 */
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86 public long getDefaultTimeout();
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87
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88 /**
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89 * Must always return a new socket connection. When the socket is no longer
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90 * needed, call {@link recycleSocket} so that it be used again.
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91 *
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92 * @throws ConnectException if timeout has elapsed and no socket is
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93 * available or factory is closed
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94 */
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95 public CheckedSocket createSocket()
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96 throws ConnectException, SocketException;
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97
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98 /**
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99 * Returns a new socket connection. When the socket is no longer
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100 * needed, call {@link recycleSocket} so that it be used again.
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101 *
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102 * @param session Object whose hashcode might be used to select a specific
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103 * connection if factory is distributed. If null, then no session is used.
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104 * @throws ConnectException if timeout has elapsed and no socket is
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105 * available or factory is closed
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106 */
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107 public CheckedSocket createSocket(Object session)
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108 throws ConnectException, SocketException;
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109
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110 /**
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111 * Returns a new socket connection. When the socket is no longer
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112 * needed, call {@link recycleSocket} so that it be used again.
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113 *
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114 * @param timeout Maximum time to wait (in milliseconds) for a connection
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115 * to be created before throwing a ConnectException
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116 * @throws ConnectException if timeout has elapsed and no socket is
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117 * available or factory is closed
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118 */
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119 public CheckedSocket createSocket(long timeout)
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120 throws ConnectException, SocketException;
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121
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122 /**
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123 * Returns a new socket connection. When the socket is no longer
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124 * needed, call {@link recycleSocket} so that it be used again.
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125 *
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126 * @param session Object whose hashcode might be used to select a specific
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127 * connection if factory is distributed. If null, then no session is used.
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128 * @param timeout Maximum time to wait (in milliseconds) for a connection
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129 * to become available before throwing an exception
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130 * @throws ConnectException if timeout has elapsed and no socket is
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131 * available or factory is closed
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132 */
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133 public CheckedSocket createSocket(Object session, long timeout)
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134 throws ConnectException, SocketException;
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135
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136 /**
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137 * Returns a new or recycled socket connection. When the socket is no
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138 * longer needed, call {@link recycleSocket} so that it be used again.
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139 *
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140 * @throws ConnectException if timeout has elapsed and no socket is
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141 * available or factory is closed
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142 */
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143 public CheckedSocket getSocket() throws ConnectException, SocketException;
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144
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145 /**
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146 * Returns a new or recycled socket connection. When the socket is no
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147 * longer needed, call {@link recycleSocket} so that it be used again.
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148 *
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149 * @param session Object whose hashcode might be used to select a specific
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150 * connection if factory is distributed. If null, then no session is used.
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151 * @throws ConnectException if timeout has elapsed and no socket is
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152 * available or factory is closed
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153 */
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154 public CheckedSocket getSocket(Object session)
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155 throws ConnectException, SocketException;
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156
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157 /**
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158 * Returns a new or recycled socket connection. When the socket is no
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159 * longer needed, call {@link recycleSocket} so that it be used again.
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160 *
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161 * @param timeout Maximum time to wait (in milliseconds) for a connection
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162 * to be returned before throwing a ConnectException
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163 * @throws ConnectException if timeout has elapsed and no socket is
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164 * available or factory is closed
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165 */
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166 public CheckedSocket getSocket(long timeout)
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167 throws ConnectException, SocketException;
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168
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169 /**
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170 * Returns a new or recycled socket connection. When the socket is no
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171 * longer needed, call {@link recycleSocket} so that it be used again.
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172 *
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173 * @param session Object whose hashcode might be used to select a specific
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174 * connection if factory is distributed. If null, then no session is used.
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175 * @param timeout Maximum time to wait (in milliseconds) for a connection
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176 * to be returned before throwing a ConnectException
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177 * @throws ConnectException if timeout has elapsed and no socket is
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178 * available or factory is closed
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179 */
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180 public CheckedSocket getSocket(Object session, long timeout)
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181 throws ConnectException, SocketException;
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182
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183 /**
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184 * Recycle a socket connection that was returned from the {@link getSocket}
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185 * or {@link createSocket} methods. Since SocketFactory has no knowledge of
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186 * any protocol being used on the socket, it is the responsibility of the
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187 * caller to ensure the socket is in a "clean" state. Depending on
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188 * implementation, the recycled socket may simply be closed.
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189 *
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190 * @param socket Socket which must have come from this factory. Passing in
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191 * null is ignored.
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192 */
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193 public void recycleSocket(CheckedSocket socket)
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194 throws SocketException, IllegalArgumentException;
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195
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196 /**
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197 * Closes all recycled connections, but does not prevent new connections
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198 * from being created and recycled.
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199 */
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200 public void clear();
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201
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202 /**
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203 * Returns the number of recycled sockets currently available.
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204 */
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205 public int getAvailableCount();
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206 }