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annotate src/org/eclipse/jetty/server/nio/BlockingChannelConnector.java @ 1031:921c25a05eaa
remove Buffer.asReadOnlyBuffer()
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Thu, 03 Nov 2016 02:04:40 -0600 |
parents | 0e96ce3db20a |
children | 2b769da7f67d |
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1 // |
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2 // ======================================================================== |
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
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4 // ------------------------------------------------------------------------ |
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5 // All rights reserved. This program and the accompanying materials |
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6 // are made available under the terms of the Eclipse Public License v1.0 |
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7 // and Apache License v2.0 which accompanies this distribution. |
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8 // |
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9 // The Eclipse Public License is available at |
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10 // http://www.eclipse.org/legal/epl-v10.html |
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11 // |
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12 // The Apache License v2.0 is available at |
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13 // http://www.opensource.org/licenses/apache2.0.php |
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14 // |
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15 // You may elect to redistribute this code under either of these licenses. |
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16 // ======================================================================== |
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17 // |
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18 |
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19 package org.eclipse.jetty.server.nio; |
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20 |
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21 import java.io.IOException; |
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22 import java.net.InetSocketAddress; |
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23 import java.net.Socket; |
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24 import java.nio.channels.ByteChannel; |
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25 import java.nio.channels.SelectionKey; |
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26 import java.nio.channels.ServerSocketChannel; |
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27 import java.nio.channels.SocketChannel; |
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28 import java.util.Set; |
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29 import java.util.concurrent.ConcurrentHashMap; |
865 | 30 import java.util.concurrent.RejectedExecutionException; |
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31 |
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32 import org.eclipse.jetty.http.HttpException; |
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33 import org.eclipse.jetty.io.Buffer; |
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34 import org.eclipse.jetty.io.EndPoint; |
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35 import org.eclipse.jetty.io.EofException; |
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36 import org.eclipse.jetty.io.nio.ChannelEndPoint; |
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37 import org.eclipse.jetty.server.BlockingHttpConnection; |
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38 import org.eclipse.jetty.server.Connector; |
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39 import org.eclipse.jetty.server.Request; |
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40 import org.eclipse.jetty.server.Server; |
1001 | 41 import org.eclipse.jetty.server.AbstractHttpConnection; |
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42 import org.slf4j.Logger; |
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43 import org.slf4j.LoggerFactory; |
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44 |
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45 |
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46 /* ------------------------------------------------------------------------------- */ |
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47 /** Blocking NIO connector. |
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48 * This connector uses efficient NIO buffers with a traditional blocking thread model. |
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49 * Direct NIO buffers are used and a thread is allocated per connections. |
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50 * |
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51 * This connector is best used when there are a few very active connections. |
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52 * |
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53 * @org.apache.xbean.XBean element="blockingNioConnector" description="Creates a blocking NIO based socket connector" |
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54 * |
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55 * |
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56 * |
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57 */ |
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58 public final class BlockingChannelConnector extends Connector |
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59 { |
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60 private static final Logger LOG = LoggerFactory.getLogger(BlockingChannelConnector.class); |
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61 |
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62 private final Set<BlockingChannelEndPoint> _endpoints = new ConcurrentHashMap<BlockingChannelEndPoint,Boolean>().newKeySet(); |
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63 |
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64 |
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65 /* ------------------------------------------------------------ */ |
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66 /** Constructor. |
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67 * |
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68 */ |
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69 public BlockingChannelConnector(Server server,int port) |
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70 { |
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71 super(server,port); |
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72 } |
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73 |
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74 |
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75 @Override |
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76 protected void doStart() throws Exception |
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77 { |
909 | 78 // Create a new server socket and set to non blocking mode |
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79 _acceptChannel = ServerSocketChannel.open(); |
909 | 80 _acceptChannel.configureBlocking(true); |
81 | |
82 // Bind the server socket to the local host and port | |
83 InetSocketAddress addr = getHost()==null?new InetSocketAddress(port):new InetSocketAddress(getHost(),port); | |
84 _acceptChannel.bind(addr); | |
85 | |
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86 super.doStart(); |
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87 server.threadPool.execute(new Runnable() |
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88 { |
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89 |
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90 public void run() |
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91 { |
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92 while (isRunning()) |
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93 { |
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94 try |
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95 { |
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96 Thread.sleep(400); |
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97 long now = System.currentTimeMillis(); |
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98 for (BlockingChannelEndPoint endp : _endpoints) |
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99 { |
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100 endp.checkIdleTimestamp(now); |
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101 } |
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102 } |
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103 catch(InterruptedException e) |
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104 { |
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105 LOG.trace("",e); |
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106 } |
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107 catch(Exception e) |
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108 { |
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109 LOG.warn("",e); |
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110 } |
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111 } |
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112 } |
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113 |
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114 }); |
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115 |
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116 } |
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117 |
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118 @Override |
906 | 119 public void accept() |
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120 throws IOException, InterruptedException |
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121 { |
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122 SocketChannel channel = _acceptChannel.accept(); |
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123 channel.configureBlocking(true); |
909 | 124 Socket socket = channel.socket(); |
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125 configure(socket); |
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126 |
1001 | 127 BlockingChannelEndPoint endp = new BlockingChannelEndPoint(channel); |
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128 try { |
1001 | 129 server.threadPool.execute(endp); |
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130 } catch(RejectedExecutionException e) { |
1001 | 131 LOG.warn("dispatch failed for {}",endp._connection); |
132 endp.close(); | |
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133 } |
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134 } |
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135 |
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136 @Override |
1001 | 137 public void customize(AbstractHttpConnection con) |
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138 throws IOException |
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139 { |
1001 | 140 con._endp.setMaxIdleTime(_maxIdleTime); |
141 configure(con._endp.getChannel().socket()); | |
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142 } |
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143 |
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144 |
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145 private class BlockingChannelEndPoint extends ChannelEndPoint implements Runnable |
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146 { |
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147 private final BlockingHttpConnection _connection; |
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148 private int _timeout; |
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149 private volatile long _idleTimestamp; |
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150 |
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151 BlockingChannelEndPoint(SocketChannel channel) |
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152 throws IOException |
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153 { |
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154 super(channel,BlockingChannelConnector.this._maxIdleTime); |
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155 _connection = new BlockingHttpConnection(BlockingChannelConnector.this,this); |
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156 } |
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157 |
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158 private void checkIdleTimestamp(long now) |
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159 { |
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160 if (_idleTimestamp!=0 && _timeout>0 && now>(_idleTimestamp+_timeout)) |
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161 { |
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162 try |
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163 { |
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164 close(); |
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165 } |
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166 catch (IOException e) |
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167 { |
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168 LOG.trace("",e); |
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169 } |
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170 } |
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171 } |
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172 |
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173 @Override |
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174 public int fill(Buffer buffer) throws IOException |
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175 { |
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176 _idleTimestamp = System.currentTimeMillis(); |
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177 return super.fill(buffer); |
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178 } |
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179 |
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180 @Override |
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181 public int flush(Buffer buffer) throws IOException |
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182 { |
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183 _idleTimestamp = System.currentTimeMillis(); |
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184 return super.flush(buffer); |
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185 } |
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186 |
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187 @Override |
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188 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException |
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189 { |
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190 _idleTimestamp = System.currentTimeMillis(); |
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191 return super.flush(header,buffer,trailer); |
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192 } |
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193 |
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194 @Override |
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195 public void run() |
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196 { |
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197 try |
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198 { |
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199 _timeout = getMaxIdleTime(); |
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200 _endpoints.add(this); |
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201 /* |
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202 while (isOpen()) |
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203 { |
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204 _idleTimestamp = System.currentTimeMillis(); |
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205 _connection.handle(); |
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206 } |
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207 */ |
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208 _idleTimestamp = System.currentTimeMillis(); |
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209 _connection.handle(); |
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210 if( isOpen() ) throw new RuntimeException(); |
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211 } |
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212 catch (EofException e) |
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213 { |
1005 | 214 LOG.warn("EOF", e); |
215 // LOG.debug("EOF", e); | |
216 try{close();} | |
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217 catch(IOException e2){LOG.trace("",e2);} |
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218 } |
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219 catch (HttpException e) |
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220 { |
1005 | 221 LOG.warn("BAD", e); |
222 // LOG.debug("BAD", e); | |
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223 try{close();} |
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224 catch(IOException e2){LOG.trace("",e2);} |
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225 } |
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226 catch(Throwable e) |
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227 { |
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228 LOG.warn("handle failed",e); |
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229 try{close();} |
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230 catch(IOException e2){LOG.trace("",e2);} |
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231 } |
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232 finally |
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233 { |
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234 _endpoints.remove(this); |
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235 |
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236 // wait for client to close, but if not, close ourselves. |
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237 try |
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238 { |
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239 if (!_socket.isClosed()) |
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240 { |
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241 long timestamp = System.currentTimeMillis(); |
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242 int max_idle = getMaxIdleTime(); |
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243 |
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244 _socket.setSoTimeout(getMaxIdleTime()); |
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245 int c=0; |
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246 do |
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247 { |
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248 c = _socket.getInputStream().read(); |
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249 } |
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250 while (c>=0 && (System.currentTimeMillis()-timestamp)<max_idle); |
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251 if (!_socket.isClosed()) |
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252 _socket.close(); |
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253 } |
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254 } |
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255 catch(IOException e) |
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256 { |
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257 LOG.trace("",e); |
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258 } |
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259 } |
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260 } |
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261 |
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262 @Override |
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263 public String toString() |
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264 { |
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265 return String.format("BCEP@%x{l(%s)<->r(%s),open=%b,ishut=%b,oshut=%b}-{%s}", |
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266 hashCode(), |
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267 _socket.getRemoteSocketAddress(), |
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268 _socket.getLocalSocketAddress(), |
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269 isOpen(), |
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270 isInputShutdown(), |
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271 isOutputShutdown(), |
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272 _connection); |
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273 } |
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274 |
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275 } |
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276 } |