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 package org.opendaylight.openflowplugin.impl.connection;
   9
  10 import java.net.InetAddress;
  11 import java.util.concurrent.ArrayBlockingQueue;
  12 import java.util.concurrent.TimeUnit;
  13
  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.OpenflowProtocolListenerImpl;
  27 import org.opendaylight.openflowplugin.impl.connection.listener.SystemNotificationsListenerImpl;
  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 boolean bitmapNegotiationEnabled = true;
  43     private DeviceConnectedHandler deviceConnectedHandler;
  44
  45     @Override
  46     public void onSwitchConnected(final ConnectionAdapter connectionAdapter) {
  47         LOG.trace("preparing handshake");
  48
  49         final int handshakeThreadLimit = 1; //TODO: move to constants/parametrize
  50         final ThreadPoolLoggingExecutor handshakePool = createHandshakePool(
  51                 connectionAdapter.getRemoteAddress().toString(), handshakeThreadLimit);
  52
  53         LOG.trace("prepare connection context");
  54         final ConnectionContext connectionContext = new ConnectionContextImpl(connectionAdapter);
  55
  56         HandshakeListener handshakeListener = new HandshakeListenerImpl(connectionContext, deviceConnectedHandler);
  57         final HandshakeManager handshakeManager = createHandshakeManager(connectionAdapter, handshakeListener);
  58
  59         LOG.trace("prepare handshake context");
  60         HandshakeContext handshakeContext = new HandshakeContextImpl(handshakePool, handshakeManager);
  61
  62         LOG.trace("prepare connection listeners");
  63         final ConnectionReadyListener connectionReadyListener = new ConnectionReadyListenerImpl(
  64                 connectionContext, handshakeContext);
  65         connectionAdapter.setConnectionReadyListener(connectionReadyListener);
  66
  67         final OpenflowProtocolListener ofMessageListener =
  68                 new OpenflowProtocolListenerImpl(connectionContext, handshakeContext);
  69         connectionAdapter.setMessageListener(ofMessageListener);
  70
  71         final SystemNotificationsListener systemListener = new SystemNotificationsListenerImpl(connectionContext);
  72         connectionAdapter.setSystemListener(systemListener);
  73
  74         LOG.trace("connection balet finished");
  75     }
  76
  77     /**
  78      * @param connectionAdapter
  79      * @param handshakeThreadLimit
  80      * @return
  81      */
  82     private static ThreadPoolLoggingExecutor createHandshakePool(
  83             final String connectionIdentifier, int handshakeThreadLimit) {
  84         return new ThreadPoolLoggingExecutor(handshakeThreadLimit,
  85                 handshakeThreadLimit, 0L, TimeUnit.MILLISECONDS,
  86                 new ArrayBlockingQueue<Runnable>(HELLO_LIMIT), "OFHandshake-" + connectionIdentifier);
  87     }
  88
  89     /**
  90      * @param connectionAdapter
  91      * @param handshakeListener
  92      * @return
  93      */
  94     private HandshakeManager createHandshakeManager(final ConnectionAdapter connectionAdapter,
  95             HandshakeListener handshakeListener) {
  96         HandshakeManagerImpl handshakeManager = new HandshakeManagerImpl(connectionAdapter,
  97                 ConnectionConductor.versionOrder.get(0),
  98                 ConnectionConductor.versionOrder);
  99         handshakeManager.setUseVersionBitmap(isBitmapNegotiationEnabled());
 100         handshakeManager.setHandshakeListener(handshakeListener);
 101         return handshakeManager;
 102     }
 103
 104     /**
 105      * @return parameter dedicated to hello message content
 106      */
 107     public boolean isBitmapNegotiationEnabled() {
 108         return bitmapNegotiationEnabled ;
 109     }
 110
 111     /**
 112      * @param bitmapNegotiationEnabled the bitmapNegotiationEnabled to set
 113      */
 114     public void setBitmapNegotiationEnabled(boolean bitmapNegotiationEnabled) {
 115         this.bitmapNegotiationEnabled = bitmapNegotiationEnabled;
 116     }
 117
 118     @Override
 119     public boolean accept(InetAddress switchAddress) {
 120         // TODO add connection accept logic based on address
 121         return true;
 122     }
 123
 124     @Override
 125     public void setDeviceConnectedHandler(DeviceConnectedHandler deviceConnectedHandler) {
 126         this.deviceConnectedHandler = deviceConnectedHandler;
 127     }
 128
 129     @Override
 130     public void setMessageHandler(MessageHandler arg0) {
 131         // TODO Auto-generated method stub
 132
 133     }
 134 }