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.ThreadPoolExecutor;
  13 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionAdapter;
  14 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionReadyListener;
  15 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
  16 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionManager;
  17 import org.opendaylight.openflowplugin.api.openflow.connection.HandshakeContext;
  18 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceConnectedHandler;
  19 import org.opendaylight.openflowplugin.api.openflow.md.core.ConnectionConductor;
  20 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeListener;
  21 import org.opendaylight.openflowplugin.api.openflow.md.core.HandshakeManager;
  22 import org.opendaylight.openflowplugin.impl.connection.listener.ConnectionReadyListenerImpl;
  23 import org.opendaylight.openflowplugin.impl.connection.listener.HandshakeListenerImpl;
  24 import org.opendaylight.openflowplugin.impl.connection.listener.OpenflowProtocolListenerInitialImpl;
  25 import org.opendaylight.openflowplugin.impl.connection.listener.SystemNotificationsListenerImpl;
  26 import org.opendaylight.openflowplugin.openflow.md.core.ErrorHandlerSimpleImpl;
  27 import org.opendaylight.openflowplugin.openflow.md.core.HandshakeManagerImpl;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OpenflowProtocolListener;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.SystemNotificationsListener;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  *
  35  */
  36 public class ConnectionManagerImpl implements ConnectionManager {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(ConnectionManagerImpl.class);
  39     private static final int HELLO_LIMIT = 20;
  40     private final boolean bitmapNegotiationEnabled = true;
  41     private DeviceConnectedHandler deviceConnectedHandler;
  42     private final long echoReplyTimeout;
  43     private final ThreadPoolExecutor threadPool;
  44
  45     public ConnectionManagerImpl(long echoReplyTimeout, final ThreadPoolExecutor threadPool) {
  46         this.echoReplyTimeout = echoReplyTimeout;
  47         this.threadPool = threadPool;
  48     }
  49
  50     @Override
  51     public void onSwitchConnected(final ConnectionAdapter connectionAdapter) {
  52         LOG.trace("prepare connection context");
  53         final ConnectionContext connectionContext = new ConnectionContextImpl(connectionAdapter);
  54
  55         HandshakeListener handshakeListener = new HandshakeListenerImpl(connectionContext, deviceConnectedHandler);
  56         final HandshakeManager handshakeManager = createHandshakeManager(connectionAdapter, handshakeListener);
  57
  58         LOG.trace("prepare handshake context");
  59         HandshakeContext handshakeContext = new HandshakeContextImpl(threadPool, handshakeManager);
  60         handshakeListener.setHandshakeContext(handshakeContext);
  61         connectionContext.setHandshakeContext(handshakeContext);
  62
  63         LOG.trace("prepare connection listeners");
  64         final ConnectionReadyListener connectionReadyListener = new ConnectionReadyListenerImpl(
  65                 connectionContext, handshakeContext);
  66         connectionAdapter.setConnectionReadyListener(connectionReadyListener);
  67
  68         final OpenflowProtocolListener ofMessageListener =
  69                 new OpenflowProtocolListenerInitialImpl(connectionContext, handshakeContext);
  70         connectionAdapter.setMessageListener(ofMessageListener);
  71
  72         final SystemNotificationsListener systemListener = new SystemNotificationsListenerImpl(connectionContext, echoReplyTimeout, threadPool);
  73         connectionAdapter.setSystemListener(systemListener);
  74
  75         LOG.trace("connection ballet finished");
  76     }
  77
  78     /**
  79      * @param connectionAdapter
  80      * @param handshakeListener
  81      * @return
  82      */
  83     private HandshakeManager createHandshakeManager(final ConnectionAdapter connectionAdapter,
  84                                                     final HandshakeListener handshakeListener) {
  85         HandshakeManagerImpl handshakeManager = new HandshakeManagerImpl(connectionAdapter,
  86                 ConnectionConductor.versionOrder.get(0),
  87                 ConnectionConductor.versionOrder);
  88         handshakeManager.setUseVersionBitmap(isBitmapNegotiationEnabled());
  89         handshakeManager.setHandshakeListener(handshakeListener);
  90         handshakeManager.setErrorHandler(new ErrorHandlerSimpleImpl());
  91
  92         return handshakeManager;
  93     }
  94
  95     /**
  96      * @return parameter dedicated to hello message content
  97      */
  98     public boolean isBitmapNegotiationEnabled() {
  99         return bitmapNegotiationEnabled;
 100     }
 101
 102     @Override
 103     public boolean accept(final InetAddress switchAddress) {
 104         // TODO add connection accept logic based on address
 105         return true;
 106     }
 107
 108     @Override
 109     public void setDeviceConnectedHandler(final DeviceConnectedHandler deviceConnectedHandler) {
 110         this.deviceConnectedHandler = deviceConnectedHandler;
 111     }
 112 }