openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/connection/ConnectionManagerImpl.java

   1 /**
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowplugin.impl.connection;
  10
  11 import java.net.InetAddress;
  12 import java.util.concurrent.LinkedBlockingQueue;
  13 import java.util.concurrent.TimeUnit;
  14 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter;
  15 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionReadyListener;
  16 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
  17 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionManager;
  18 import org.opendaylight.openflowplugin.api.openflow.connection.HandshakeContext;
  19 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceConnectedHandler;
  20 import org.opendaylight.openflowplugin.api.openflow.md.core.ConnectionConductor;
  21 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeListener;
  22 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeManager;
  23 import org.opendaylight.openflowplugin.impl.connection.listener.ConnectionReadyListenerImpl;
  24 import org.opendaylight.openflowplugin.impl.connection.listener.HandshakeListenerImpl;
  25 import org.opendaylight.openflowplugin.impl.connection.listener.OpenflowProtocolListenerInitialImpl;
  26 import org.opendaylight.openflowplugin.impl.connection.listener.SystemNotificationsListenerImpl;
  27 import org.opendaylight.openflowplugin.openflow.md.core.ErrorHandlerSimpleImpl;
  28 import org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl;
  29 import org.opendaylight.openflowplugin.openflow.md.core.ThreadPoolLoggingExecutor;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OpenflowProtocolListener;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.SystemNotificationsListener;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  *
  37  */
  38 public class ConnectionManagerImpl implements ConnectionManager {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(ConnectionManagerImpl.class);
  41     private static final int HELLO_LIMIT = 20;
  42     private final boolean bitmapNegotiationEnabled = true;
  43     private DeviceConnectedHandler deviceConnectedHandler;
  44     private final long echoReplyTimeout;
  45
  46     public ConnectionManagerImpl(long echoReplyTimeout) {
  47         this.echoReplyTimeout = echoReplyTimeout;
  48     }
  49
  50
  51     @Override
  52     public void onSwitchConnected(final ConnectionAdapter connectionAdapter) {
  53
  54         LOG.trace("preparing handshake: {}", connectionAdapter.getRemoteAddress());
  55
  56         final int handshakeThreadLimit = 1;
  57         final ThreadPoolLoggingExecutor handshakePool = createHandshakePool(
  58                 connectionAdapter.getRemoteAddress().toString(), handshakeThreadLimit);
  59
  60         LOG.trace("prepare connection context");
  61         final ConnectionContext connectionContext = new ConnectionContextImpl(connectionAdapter);
  62
  63         HandshakeListener handshakeListener = new HandshakeListenerImpl(connectionContext, deviceConnectedHandler);
  64         final HandshakeManager handshakeManager = createHandshakeManager(connectionAdapter, handshakeListener);
  65
  66         LOG.trace("prepare handshake context");
  67         HandshakeContext handshakeContext = new HandshakeContextImpl(handshakePool, handshakeManager);
  68         handshakeListener.setHandshakeContext(handshakeContext);
  69         connectionContext.setHandshakeContext(handshakeContext);
  70
  71         LOG.trace("prepare connection listeners");
  72         final ConnectionReadyListener connectionReadyListener = new ConnectionReadyListenerImpl(
  73                 connectionContext, handshakeContext);
  74         connectionAdapter.setConnectionReadyListener(connectionReadyListener);
  75
  76         final OpenflowProtocolListener ofMessageListener =
  77                 new OpenflowProtocolListenerInitialImpl(connectionContext, handshakeContext);
  78         connectionAdapter.setMessageListener(ofMessageListener);
  79
  80         final SystemNotificationsListener systemListener = new SystemNotificationsListenerImpl(connectionContext, echoReplyTimeout);
  81         connectionAdapter.setSystemListener(systemListener);
  82
  83         LOG.trace("connection ballet finished");
  84     }
  85
  86     /**
  87      * @param connectionIdentifier
  88      * @param handshakeThreadLimit
  89      * @return
  90      */
  91     private static ThreadPoolLoggingExecutor createHandshakePool(
  92             final String connectionIdentifier, final int handshakeThreadLimit) {
  93         return new ThreadPoolLoggingExecutor(handshakeThreadLimit,
  94                 handshakeThreadLimit, 0L, TimeUnit.MILLISECONDS,
  95                 new LinkedBlockingQueue<>(HELLO_LIMIT), "OFHandshake-" + connectionIdentifier);
  96     }
  97
  98     /**
  99      * @param connectionAdapter
 100      * @param handshakeListener
 101      * @return
 102      */
 103     private HandshakeManager createHandshakeManager(final ConnectionAdapter connectionAdapter,
 104                                                     final HandshakeListener handshakeListener) {
 105         HandshakeManagerImpl handshakeManager = new HandshakeManagerImpl(connectionAdapter,
 106                 ConnectionConductor.versionOrder.get(0),
 107                 ConnectionConductor.versionOrder);
 108         handshakeManager.setUseVersionBitmap(isBitmapNegotiationEnabled());
 109         handshakeManager.setHandshakeListener(handshakeListener);
 110         handshakeManager.setErrorHandler(new ErrorHandlerSimpleImpl());
 111
 112         return handshakeManager;
 113     }
 114
 115     /**
 116      * @return parameter dedicated to hello message content
 117      */
 118     public boolean isBitmapNegotiationEnabled() {
 119         return bitmapNegotiationEnabled;
 120     }
 121
 122
 123     @Override
 124     public boolean accept(final InetAddress switchAddress) {
 125         // TODO add connection accept logic based on address
 126         return true;
 127     }
 128
 129     @Override
 130     public void setDeviceConnectedHandler(final DeviceConnectedHandler deviceConnectedHandler) {
 131         this.deviceConnectedHandler = deviceConnectedHandler;
 132     }
 133 }