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.ArrayBlockingQueue;
  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.device.handlers.MessageHandler;
  21 import org.opendaylight.openflowplugin.api.openflow.md.core.ConnectionConductor;
  22 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeListener;
  23 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeManager;
  24 import org.opendaylight.openflowplugin.impl.connection.listener.ConnectionReadyListenerImpl;
  25 import org.opendaylight.openflowplugin.impl.connection.listener.HandshakeListenerImpl;
  26 import org.opendaylight.openflowplugin.impl.connection.listener.OpenflowProtocolListenerInitialImpl;
  27 import org.opendaylight.openflowplugin.impl.connection.listener.SystemNotificationsListenerImpl;
  28 import org.opendaylight.openflowplugin.openflow.md.core.ErrorHandlerSimpleImpl;
  29 import org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl;
  30 import org.opendaylight.openflowplugin.openflow.md.core.ThreadPoolLoggingExecutor;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OpenflowProtocolListener;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.SystemNotificationsListener;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 /**
  37  *
  38  */
  39 public class ConnectionManagerImpl implements ConnectionManager {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(ConnectionManagerImpl.class);
  42     private static final int HELLO_LIMIT = 20;
  43     private final boolean bitmapNegotiationEnabled = true;
  44     private DeviceConnectedHandler deviceConnectedHandler;
  45
  46     @Override
  47     public void onSwitchConnected(final ConnectionAdapter connectionAdapter) {
  48
  49         LOG.trace("preparing handshake: {}", connectionAdapter.getRemoteAddress());
  50
  51         final int handshakeThreadLimit = 1;
  52         final ThreadPoolLoggingExecutor handshakePool = createHandshakePool(
  53                 connectionAdapter.getRemoteAddress().toString(), handshakeThreadLimit);
  54
  55         LOG.trace("prepare connection context");
  56         final ConnectionContext connectionContext = new ConnectionContextImpl(connectionAdapter);
  57
  58         HandshakeListener handshakeListener = new HandshakeListenerImpl(connectionContext, deviceConnectedHandler);
  59         final HandshakeManager handshakeManager = createHandshakeManager(connectionAdapter, handshakeListener);
  60
  61         LOG.trace("prepare handshake context");
  62         HandshakeContext handshakeContext = new HandshakeContextImpl(handshakePool, handshakeManager);
  63         handshakeListener.setHandshakeContext(handshakeContext);
  64         connectionContext.setHandshakeContext(handshakeContext);
  65
  66         LOG.trace("prepare connection listeners");
  67         final ConnectionReadyListener connectionReadyListener = new ConnectionReadyListenerImpl(
  68                 connectionContext, handshakeContext);
  69         connectionAdapter.setConnectionReadyListener(connectionReadyListener);
  70
  71         final OpenflowProtocolListener ofMessageListener =
  72                 new OpenflowProtocolListenerInitialImpl(connectionContext, handshakeContext);
  73         connectionAdapter.setMessageListener(ofMessageListener);
  74
  75         final SystemNotificationsListener systemListener = new SystemNotificationsListenerImpl(connectionContext);
  76         connectionAdapter.setSystemListener(systemListener);
  77
  78         LOG.trace("connection ballet finished");
  79     }
  80
  81     /**
  82      * @param connectionIdentifier
  83      * @param handshakeThreadLimit
  84      * @return
  85      */
  86     private static ThreadPoolLoggingExecutor createHandshakePool(
  87             final String connectionIdentifier, final int handshakeThreadLimit) {
  88         return new ThreadPoolLoggingExecutor(handshakeThreadLimit,
  89                 handshakeThreadLimit, 0L, TimeUnit.MILLISECONDS,
  90                 new ArrayBlockingQueue<Runnable>(HELLO_LIMIT), "OFHandshake-" + connectionIdentifier);
  91     }
  92
  93     /**
  94      * @param connectionAdapter
  95      * @param handshakeListener
  96      * @return
  97      */
  98     private HandshakeManager createHandshakeManager(final ConnectionAdapter connectionAdapter,
  99                                                     final HandshakeListener handshakeListener) {
 100         HandshakeManagerImpl handshakeManager = new HandshakeManagerImpl(connectionAdapter,
 101                 ConnectionConductor.versionOrder.get(0),
 102                 ConnectionConductor.versionOrder);
 103         handshakeManager.setUseVersionBitmap(isBitmapNegotiationEnabled());
 104         handshakeManager.setHandshakeListener(handshakeListener);
 105         handshakeManager.setErrorHandler(new ErrorHandlerSimpleImpl());
 106
 107         return handshakeManager;
 108     }
 109
 110     /**
 111      * @return parameter dedicated to hello message content
 112      */
 113     public boolean isBitmapNegotiationEnabled() {
 114         return bitmapNegotiationEnabled;
 115     }
 116
 117
 118     @Override
 119     public boolean accept(final InetAddress switchAddress) {
 120         // TODO add connection accept logic based on address
 121         return true;
 122     }
 123
 124     @Override
 125     public void setDeviceConnectedHandler(final DeviceConnectedHandler deviceConnectedHandler) {
 126         this.deviceConnectedHandler = deviceConnectedHandler;
 127     }
 128
 129     @Override
 130     public void setMessageHandler(final MessageHandler arg0) {
 131         // TODO Auto-generated method stub
 132
 133     }
 134 }