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