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annotate src/org/eclipse/jetty/server/nio/BlockingChannelConnector.java @ 908:e003b20780c4
remove NIOConnector
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 07 Oct 2016 15:17:01 -0600 |
parents | bc4e299de953 |
children | c60c1adfac3e |
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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.ConnectedEndPoint; |
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35 import org.eclipse.jetty.io.Connection; |
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36 import org.eclipse.jetty.io.EndPoint; |
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37 import org.eclipse.jetty.io.EofException; |
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38 import org.eclipse.jetty.io.nio.ChannelEndPoint; |
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39 import org.eclipse.jetty.server.BlockingHttpConnection; |
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40 import org.eclipse.jetty.server.Connector; |
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41 import org.eclipse.jetty.server.Request; |
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42 import org.eclipse.jetty.server.Server; |
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43 import org.slf4j.Logger; |
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44 import org.slf4j.LoggerFactory; |
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45 |
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46 |
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47 /* ------------------------------------------------------------------------------- */ |
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48 /** Blocking NIO connector. |
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49 * This connector uses efficient NIO buffers with a traditional blocking thread model. |
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50 * Direct NIO buffers are used and a thread is allocated per connections. |
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51 * |
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52 * This connector is best used when there are a few very active connections. |
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53 * |
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54 * @org.apache.xbean.XBean element="blockingNioConnector" description="Creates a blocking NIO based socket connector" |
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55 * |
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56 * |
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57 * |
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58 */ |
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59 public final class BlockingChannelConnector extends Connector |
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60 { |
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61 private static final Logger LOG = LoggerFactory.getLogger(BlockingChannelConnector.class); |
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62 |
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63 private transient ServerSocketChannel _acceptChannel; |
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64 private final Set<BlockingChannelEndPoint> _endpoints = new ConcurrentHashMap<BlockingChannelEndPoint,Boolean>().newKeySet(); |
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65 |
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66 |
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67 /* ------------------------------------------------------------ */ |
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68 /** Constructor. |
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69 * |
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70 */ |
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71 public BlockingChannelConnector(Server server,int port) |
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72 { |
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73 super(server,port); |
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74 } |
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75 |
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76 /* ------------------------------------------------------------ */ |
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77 public Object getConnection() |
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78 { |
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79 return _acceptChannel; |
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80 } |
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81 |
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82 /* ------------------------------------------------------------ */ |
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83 /** |
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84 * @see org.eclipse.jetty.server.AbstractConnector#doStart() |
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85 */ |
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86 @Override |
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87 protected void doStart() throws Exception |
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88 { |
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89 super.doStart(); |
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90 server.threadPool.execute(new Runnable() |
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91 { |
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92 |
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93 public void run() |
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94 { |
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95 while (isRunning()) |
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96 { |
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97 try |
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98 { |
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99 Thread.sleep(400); |
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100 long now=System.currentTimeMillis(); |
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101 for (BlockingChannelEndPoint endp : _endpoints) |
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102 { |
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103 endp.checkIdleTimestamp(now); |
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104 } |
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105 } |
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106 catch(InterruptedException e) |
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107 { |
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108 LOG.trace("",e); |
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109 } |
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110 catch(Exception e) |
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111 { |
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112 LOG.warn("",e); |
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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 |
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119 } |
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120 |
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121 |
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122 /* ------------------------------------------------------------ */ |
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123 public void open() throws IOException |
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124 { |
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125 // Create a new server socket and set to non blocking mode |
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126 _acceptChannel= ServerSocketChannel.open(); |
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127 _acceptChannel.configureBlocking(true); |
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128 |
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129 // Bind the server socket to the local host and port |
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130 InetSocketAddress addr = getHost()==null?new InetSocketAddress(port):new InetSocketAddress(getHost(),port); |
906 | 131 _acceptChannel.socket().bind(addr); |
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132 } |
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133 |
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134 /* ------------------------------------------------------------ */ |
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135 public void close() throws IOException |
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136 { |
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137 if (_acceptChannel != null) |
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138 _acceptChannel.close(); |
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139 _acceptChannel=null; |
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140 } |
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141 |
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142 /* ------------------------------------------------------------ */ |
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143 @Override |
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145 throws IOException, InterruptedException |
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146 { |
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147 SocketChannel channel = _acceptChannel.accept(); |
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148 channel.configureBlocking(true); |
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149 Socket socket=channel.socket(); |
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150 configure(socket); |
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151 |
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152 BlockingChannelEndPoint connection=new BlockingChannelEndPoint(channel); |
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153 connection.dispatch(); |
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154 } |
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155 |
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156 /* ------------------------------------------------------------------------------- */ |
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157 @Override |
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158 public void customize(EndPoint endpoint, Request request) |
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159 throws IOException |
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160 { |
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161 super.customize(endpoint, request); |
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162 endpoint.setMaxIdleTime(_maxIdleTime); |
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163 configure(((SocketChannel)endpoint.getTransport()).socket()); |
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164 } |
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165 |
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166 |
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167 /* ------------------------------------------------------------------------------- */ |
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168 public int getLocalPort() |
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169 { |
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170 if (_acceptChannel==null || !_acceptChannel.isOpen()) |
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171 return -1; |
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172 return _acceptChannel.socket().getLocalPort(); |
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173 } |
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174 |
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175 /* ------------------------------------------------------------------------------- */ |
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176 /* ------------------------------------------------------------------------------- */ |
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177 /* ------------------------------------------------------------------------------- */ |
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178 private class BlockingChannelEndPoint extends ChannelEndPoint implements Runnable, ConnectedEndPoint |
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179 { |
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180 private Connection _connection; |
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181 private int _timeout; |
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182 private volatile long _idleTimestamp; |
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183 |
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184 BlockingChannelEndPoint(ByteChannel channel) |
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185 throws IOException |
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186 { |
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187 super(channel,BlockingChannelConnector.this._maxIdleTime); |
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188 _connection = new BlockingHttpConnection(BlockingChannelConnector.this,this,server); |
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189 } |
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190 |
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191 /* ------------------------------------------------------------ */ |
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192 /** Get the connection. |
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193 * @return the connection |
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194 */ |
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195 public Connection getConnection() |
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196 { |
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197 return _connection; |
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198 } |
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199 |
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200 /* ------------------------------------------------------------ */ |
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201 public void setConnection(Connection connection) |
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202 { |
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203 _connection=connection; |
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204 } |
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205 |
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206 /* ------------------------------------------------------------ */ |
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207 public void checkIdleTimestamp(long now) |
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208 { |
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209 if (_idleTimestamp!=0 && _timeout>0 && now>(_idleTimestamp+_timeout)) |
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210 { |
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211 idleExpired(); |
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212 } |
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213 } |
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214 |
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215 /* ------------------------------------------------------------ */ |
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216 protected void idleExpired() |
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217 { |
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218 try |
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219 { |
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220 super.close(); |
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221 } |
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222 catch (IOException e) |
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223 { |
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224 LOG.trace("",e); |
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225 } |
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226 } |
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227 |
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228 /* ------------------------------------------------------------ */ |
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229 void dispatch() throws IOException |
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230 { |
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232 server.threadPool.execute(this); |
865 | 233 } catch(RejectedExecutionException e) { |
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234 LOG.warn("dispatch failed for {}",_connection); |
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235 super.close(); |
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236 } |
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237 } |
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238 |
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239 /* ------------------------------------------------------------ */ |
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240 /** |
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241 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#fill(org.eclipse.jetty.io.Buffer) |
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242 */ |
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243 @Override |
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244 public int fill(Buffer buffer) throws IOException |
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245 { |
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246 _idleTimestamp=System.currentTimeMillis(); |
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247 return super.fill(buffer); |
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248 } |
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249 |
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250 /* ------------------------------------------------------------ */ |
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251 /** |
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252 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#flush(org.eclipse.jetty.io.Buffer) |
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253 */ |
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254 @Override |
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255 public int flush(Buffer buffer) throws IOException |
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256 { |
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257 _idleTimestamp=System.currentTimeMillis(); |
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258 return super.flush(buffer); |
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259 } |
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260 |
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261 /* ------------------------------------------------------------ */ |
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262 /** |
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263 * @see org.eclipse.jetty.io.nio.ChannelEndPoint#flush(org.eclipse.jetty.io.Buffer, org.eclipse.jetty.io.Buffer, org.eclipse.jetty.io.Buffer) |
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264 */ |
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265 @Override |
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266 public int flush(Buffer header, Buffer buffer, Buffer trailer) throws IOException |
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267 { |
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268 _idleTimestamp=System.currentTimeMillis(); |
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269 return super.flush(header,buffer,trailer); |
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270 } |
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271 |
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272 /* ------------------------------------------------------------ */ |
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273 public void run() |
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274 { |
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275 try |
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276 { |
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277 _timeout=getMaxIdleTime(); |
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278 _endpoints.add(this); |
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279 |
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280 while (isOpen()) |
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281 { |
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282 _idleTimestamp=System.currentTimeMillis(); |
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283 if (_connection.isIdle()) |
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284 { |
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285 if (server.isLowOnThreads()) |
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286 { |
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287 int lrmit = getLowResourcesMaxIdleTime(); |
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288 if (lrmit>=0 && _timeout!= lrmit) |
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289 { |
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290 _timeout=lrmit; |
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291 } |
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292 } |
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293 } |
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294 else |
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295 { |
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296 if (_timeout!=getMaxIdleTime()) |
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297 { |
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298 _timeout=getMaxIdleTime(); |
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299 } |
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300 } |
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301 |
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302 _connection = _connection.handle(); |
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303 |
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304 } |
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305 } |
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306 catch (EofException e) |
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307 { |
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308 LOG.debug("EOF", e); |
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309 try{BlockingChannelEndPoint.this.close();} |
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310 catch(IOException e2){LOG.trace("",e2);} |
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311 } |
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312 catch (HttpException e) |
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313 { |
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314 LOG.debug("BAD", e); |
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315 try{super.close();} |
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316 catch(IOException e2){LOG.trace("",e2);} |
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317 } |
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318 catch(Throwable e) |
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319 { |
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320 LOG.warn("handle failed",e); |
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321 try{super.close();} |
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322 catch(IOException e2){LOG.trace("",e2);} |
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323 } |
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324 finally |
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325 { |
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326 _connection.onClose(); |
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327 _endpoints.remove(this); |
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328 |
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329 // wait for client to close, but if not, close ourselves. |
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330 try |
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331 { |
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332 if (!_socket.isClosed()) |
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333 { |
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334 long timestamp=System.currentTimeMillis(); |
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335 int max_idle=getMaxIdleTime(); |
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336 |
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337 _socket.setSoTimeout(getMaxIdleTime()); |
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338 int c=0; |
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339 do |
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340 { |
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341 c = _socket.getInputStream().read(); |
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342 } |
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343 while (c>=0 && (System.currentTimeMillis()-timestamp)<max_idle); |
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344 if (!_socket.isClosed()) |
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345 _socket.close(); |
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346 } |
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347 } |
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348 catch(IOException e) |
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349 { |
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350 LOG.trace("",e); |
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351 } |
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352 } |
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353 } |
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354 |
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355 /* ------------------------------------------------------------ */ |
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356 @Override |
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357 public String toString() |
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358 { |
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359 return String.format("BCEP@%x{l(%s)<->r(%s),open=%b,ishut=%b,oshut=%b}-{%s}", |
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360 hashCode(), |
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361 _socket.getRemoteSocketAddress(), |
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362 _socket.getLocalSocketAddress(), |
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363 isOpen(), |
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364 isInputShutdown(), |
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365 isOutputShutdown(), |
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366 _connection); |
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367 } |
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368 |
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369 } |
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370 } |