Jake Slack | 03928ae | 2014-05-13 18:41:56 -0700 | [diff] [blame] | 1 | // |
| 2 | // ======================================================================== |
| 3 | // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| 4 | // ------------------------------------------------------------------------ |
| 5 | // All rights reserved. This program and the accompanying materials |
| 6 | // are made available under the terms of the Eclipse Public License v1.0 |
| 7 | // and Apache License v2.0 which accompanies this distribution. |
| 8 | // |
| 9 | // The Eclipse Public License is available at |
| 10 | // http://www.eclipse.org/legal/epl-v10.html |
| 11 | // |
| 12 | // The Apache License v2.0 is available at |
| 13 | // http://www.opensource.org/licenses/apache2.0.php |
| 14 | // |
| 15 | // You may elect to redistribute this code under either of these licenses. |
| 16 | // ======================================================================== |
| 17 | // |
| 18 | |
| 19 | package org.eclipse.jetty.server.bio; |
| 20 | |
| 21 | import java.io.IOException; |
| 22 | import java.net.InetAddress; |
| 23 | import java.net.ServerSocket; |
| 24 | import java.net.Socket; |
| 25 | import java.net.SocketException; |
| 26 | import java.util.HashSet; |
| 27 | import java.util.Set; |
| 28 | |
| 29 | import org.eclipse.jetty.http.HttpException; |
| 30 | import org.eclipse.jetty.io.Buffer; |
| 31 | import org.eclipse.jetty.io.ConnectedEndPoint; |
| 32 | import org.eclipse.jetty.io.Connection; |
| 33 | import org.eclipse.jetty.io.EndPoint; |
| 34 | import org.eclipse.jetty.io.EofException; |
| 35 | import org.eclipse.jetty.io.bio.SocketEndPoint; |
| 36 | import org.eclipse.jetty.server.AbstractConnector; |
| 37 | import org.eclipse.jetty.server.AbstractHttpConnection; |
| 38 | import org.eclipse.jetty.server.BlockingHttpConnection; |
| 39 | import org.eclipse.jetty.server.Request; |
| 40 | import org.eclipse.jetty.util.component.AggregateLifeCycle; |
| 41 | import org.eclipse.jetty.util.log.Log; |
| 42 | import org.eclipse.jetty.util.log.Logger; |
| 43 | |
| 44 | |
| 45 | /* ------------------------------------------------------------------------------- */ |
| 46 | /** Socket Connector. |
| 47 | * This connector implements a traditional blocking IO and threading model. |
| 48 | * Normal JRE sockets are used and a thread is allocated per connection. |
| 49 | * Buffers are managed so that large buffers are only allocated to active connections. |
| 50 | * |
| 51 | * This Connector should only be used if NIO is not available. |
| 52 | * |
| 53 | * @org.apache.xbean.XBean element="bioConnector" description="Creates a BIO based socket connector" |
| 54 | * |
| 55 | * |
| 56 | */ |
| 57 | public class SocketConnector extends AbstractConnector |
| 58 | { |
| 59 | private static final Logger LOG = Log.getLogger(SocketConnector.class); |
| 60 | |
| 61 | protected ServerSocket _serverSocket; |
| 62 | protected final Set<EndPoint> _connections; |
| 63 | protected volatile int _localPort=-1; |
| 64 | |
| 65 | /* ------------------------------------------------------------ */ |
| 66 | /** Constructor. |
| 67 | * |
| 68 | */ |
| 69 | public SocketConnector() |
| 70 | { |
| 71 | _connections=new HashSet<EndPoint>(); |
| 72 | } |
| 73 | |
| 74 | /* ------------------------------------------------------------ */ |
| 75 | public Object getConnection() |
| 76 | { |
| 77 | return _serverSocket; |
| 78 | } |
| 79 | |
| 80 | /* ------------------------------------------------------------ */ |
| 81 | public void open() throws IOException |
| 82 | { |
| 83 | // Create a new server socket and set to non blocking mode |
| 84 | if (_serverSocket==null || _serverSocket.isClosed()) |
| 85 | _serverSocket= newServerSocket(getHost(),getPort(),getAcceptQueueSize()); |
| 86 | _serverSocket.setReuseAddress(getReuseAddress()); |
| 87 | _localPort=_serverSocket.getLocalPort(); |
| 88 | if (_localPort<=0) |
| 89 | throw new IllegalStateException("port not allocated for "+this); |
| 90 | |
| 91 | } |
| 92 | |
| 93 | /* ------------------------------------------------------------ */ |
| 94 | protected ServerSocket newServerSocket(String host, int port,int backlog) throws IOException |
| 95 | { |
| 96 | ServerSocket ss= host==null? |
| 97 | new ServerSocket(port,backlog): |
| 98 | new ServerSocket(port,backlog,InetAddress.getByName(host)); |
| 99 | |
| 100 | return ss; |
| 101 | } |
| 102 | |
| 103 | /* ------------------------------------------------------------ */ |
| 104 | public void close() throws IOException |
| 105 | { |
| 106 | if (_serverSocket!=null) |
| 107 | _serverSocket.close(); |
| 108 | _serverSocket=null; |
| 109 | _localPort=-2; |
| 110 | } |
| 111 | |
| 112 | /* ------------------------------------------------------------ */ |
| 113 | @Override |
| 114 | public void accept(int acceptorID) |
| 115 | throws IOException, InterruptedException |
| 116 | { |
| 117 | Socket socket = _serverSocket.accept(); |
| 118 | configure(socket); |
| 119 | |
| 120 | ConnectorEndPoint connection=new ConnectorEndPoint(socket); |
| 121 | connection.dispatch(); |
| 122 | } |
| 123 | |
| 124 | /* ------------------------------------------------------------------------------- */ |
| 125 | /** |
| 126 | * Allows subclass to override Conection if required. |
| 127 | */ |
| 128 | protected Connection newConnection(EndPoint endpoint) |
| 129 | { |
| 130 | return new BlockingHttpConnection(this, endpoint, getServer()); |
| 131 | } |
| 132 | |
| 133 | /* ------------------------------------------------------------------------------- */ |
| 134 | @Override |
| 135 | public void customize(EndPoint endpoint, Request request) |
| 136 | throws IOException |
| 137 | { |
| 138 | ConnectorEndPoint connection = (ConnectorEndPoint)endpoint; |
| 139 | int lrmit = isLowResources()?_lowResourceMaxIdleTime:_maxIdleTime; |
| 140 | connection.setMaxIdleTime(lrmit); |
| 141 | |
| 142 | super.customize(endpoint, request); |
| 143 | } |
| 144 | |
| 145 | /* ------------------------------------------------------------------------------- */ |
| 146 | public int getLocalPort() |
| 147 | { |
| 148 | return _localPort; |
| 149 | } |
| 150 | |
| 151 | /* ------------------------------------------------------------------------------- */ |
| 152 | @Override |
| 153 | protected void doStart() throws Exception |
| 154 | { |
| 155 | _connections.clear(); |
| 156 | super.doStart(); |
| 157 | } |
| 158 | |
| 159 | /* ------------------------------------------------------------------------------- */ |
| 160 | @Override |
| 161 | protected void doStop() throws Exception |
| 162 | { |
| 163 | super.doStop(); |
| 164 | Set<EndPoint> set = new HashSet<EndPoint>(); |
| 165 | synchronized(_connections) |
| 166 | { |
| 167 | set.addAll(_connections); |
| 168 | } |
| 169 | for (EndPoint endPoint : set) |
| 170 | { |
| 171 | ConnectorEndPoint connection = (ConnectorEndPoint)endPoint; |
| 172 | connection.close(); |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | public void dump(Appendable out, String indent) throws IOException |
| 178 | { |
| 179 | super.dump(out, indent); |
| 180 | Set<EndPoint> connections = new HashSet<EndPoint>(); |
| 181 | synchronized (_connections) |
| 182 | { |
| 183 | connections.addAll(_connections); |
| 184 | } |
| 185 | AggregateLifeCycle.dump(out, indent, connections); |
| 186 | } |
| 187 | |
| 188 | /* ------------------------------------------------------------------------------- */ |
| 189 | /* ------------------------------------------------------------------------------- */ |
| 190 | /* ------------------------------------------------------------------------------- */ |
| 191 | protected class ConnectorEndPoint extends SocketEndPoint implements Runnable, ConnectedEndPoint |
| 192 | { |
| 193 | volatile Connection _connection; |
| 194 | protected final Socket _socket; |
| 195 | |
| 196 | public ConnectorEndPoint(Socket socket) throws IOException |
| 197 | { |
| 198 | super(socket,_maxIdleTime); |
| 199 | _connection = newConnection(this); |
| 200 | _socket=socket; |
| 201 | } |
| 202 | |
| 203 | public Connection getConnection() |
| 204 | { |
| 205 | return _connection; |
| 206 | } |
| 207 | |
| 208 | public void setConnection(Connection connection) |
| 209 | { |
| 210 | if (_connection!=connection && _connection!=null) |
| 211 | connectionUpgraded(_connection,connection); |
| 212 | _connection=connection; |
| 213 | } |
| 214 | |
| 215 | public void dispatch() throws IOException |
| 216 | { |
| 217 | if (getThreadPool()==null || !getThreadPool().dispatch(this)) |
| 218 | { |
| 219 | LOG.warn("dispatch failed for {}",_connection); |
| 220 | close(); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | @Override |
| 225 | public int fill(Buffer buffer) throws IOException |
| 226 | { |
| 227 | int l = super.fill(buffer); |
| 228 | if (l<0) |
| 229 | { |
| 230 | if (!isInputShutdown()) |
| 231 | shutdownInput(); |
| 232 | if (isOutputShutdown()) |
| 233 | close(); |
| 234 | } |
| 235 | return l; |
| 236 | } |
| 237 | |
| 238 | @Override |
| 239 | public void close() throws IOException |
| 240 | { |
| 241 | if (_connection instanceof AbstractHttpConnection) |
| 242 | ((AbstractHttpConnection)_connection).getRequest().getAsyncContinuation().cancel(); |
| 243 | super.close(); |
| 244 | } |
| 245 | |
| 246 | public void run() |
| 247 | { |
| 248 | try |
| 249 | { |
| 250 | connectionOpened(_connection); |
| 251 | synchronized(_connections) |
| 252 | { |
| 253 | _connections.add(this); |
| 254 | } |
| 255 | |
| 256 | while (isStarted() && !isClosed()) |
| 257 | { |
| 258 | if (_connection.isIdle()) |
| 259 | { |
| 260 | if (isLowResources()) |
| 261 | setMaxIdleTime(getLowResourcesMaxIdleTime()); |
| 262 | } |
| 263 | |
| 264 | _connection=_connection.handle(); |
| 265 | } |
| 266 | } |
| 267 | catch (EofException e) |
| 268 | { |
| 269 | LOG.debug("EOF", e); |
| 270 | try{close();} |
| 271 | catch(IOException e2){LOG.ignore(e2);} |
| 272 | } |
| 273 | catch (SocketException e) |
| 274 | { |
| 275 | LOG.debug("EOF", e); |
| 276 | try{close();} |
| 277 | catch(IOException e2){LOG.ignore(e2);} |
| 278 | } |
| 279 | catch (HttpException e) |
| 280 | { |
| 281 | LOG.debug("BAD", e); |
| 282 | try{close();} |
| 283 | catch(IOException e2){LOG.ignore(e2);} |
| 284 | } |
| 285 | catch(Exception e) |
| 286 | { |
| 287 | LOG.warn("handle failed?",e); |
| 288 | try{close();} |
| 289 | catch(IOException e2){LOG.ignore(e2);} |
| 290 | } |
| 291 | finally |
| 292 | { |
| 293 | connectionClosed(_connection); |
| 294 | synchronized(_connections) |
| 295 | { |
| 296 | _connections.remove(this); |
| 297 | } |
| 298 | |
| 299 | // wait for client to close, but if not, close ourselves. |
| 300 | try |
| 301 | { |
| 302 | if (!_socket.isClosed()) |
| 303 | { |
| 304 | long timestamp=System.currentTimeMillis(); |
| 305 | int max_idle=getMaxIdleTime(); |
| 306 | |
| 307 | _socket.setSoTimeout(getMaxIdleTime()); |
| 308 | int c=0; |
| 309 | do |
| 310 | { |
| 311 | c = _socket.getInputStream().read(); |
| 312 | } |
| 313 | while (c>=0 && (System.currentTimeMillis()-timestamp)<max_idle); |
| 314 | if (!_socket.isClosed()) |
| 315 | _socket.close(); |
| 316 | } |
| 317 | } |
| 318 | catch(IOException e) |
| 319 | { |
| 320 | LOG.ignore(e); |
| 321 | } |
| 322 | } |
| 323 | } |
| 324 | } |
| 325 | } |