openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/connection/SwitchConnectionProviderImpl.java

   1 /**
   2  * Copyright (c) 2013 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.openflowjava.protocol.impl.connection;
  10
  11 import java.util.ArrayList;
  12 import java.util.Collection;
  13 import java.util.HashSet;
  14 import java.util.Iterator;
  15 import java.util.List;
  16 import java.util.Set;
  17 import java.util.concurrent.Future;
  18
  19 import org.opendaylight.openflowjava.protocol.api.connection.ConnectionConfiguration;
  20 import org.opendaylight.openflowjava.protocol.api.connection.SwitchConnectionHandler;
  21 import org.opendaylight.openflowjava.protocol.impl.core.TcpHandler;
  22 import org.opendaylight.openflowjava.protocol.spi.connection.SwitchConnectionProvider;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 import com.google.common.util.concurrent.Futures;
  27 import com.google.common.util.concurrent.ListenableFuture;
  28 import com.google.common.util.concurrent.SettableFuture;
  29
  30 /**
  31  * @author mirehak
  32  * @author michal.polkorab
  33  */
  34 public class SwitchConnectionProviderImpl implements SwitchConnectionProvider {
  35
  36     private static final Logger LOG = LoggerFactory
  37             .getLogger(SwitchConnectionProviderImpl.class);
  38     private SwitchConnectionHandler switchConnectionHandler;
  39     private Set<ServerFacade> serverLot;
  40
  41     @Override
  42     public void configure(Collection<ConnectionConfiguration> connConfigs) {
  43         LOG.debug("Configurating ..");
  44
  45         //TODO - add and configure servers according to configuration
  46         serverLot = new HashSet<>();
  47         for (Iterator<ConnectionConfiguration> iterator = connConfigs.iterator(); iterator.hasNext();) {
  48             ConnectionConfiguration connConfig = iterator.next();
  49             serverLot.add(new TcpHandler(connConfig.getAddress(), connConfig.getPort()));
  50         }
  51     }
  52
  53     @Override
  54     public void setSwitchConnectionHandler(SwitchConnectionHandler switchConnectionHandler) {
  55         LOG.debug("setSwitchConnectionHanler");
  56         this.switchConnectionHandler = switchConnectionHandler;
  57     }
  58
  59     @Override
  60     public Future<List<Boolean>> shutdown() {
  61         LOG.debug("Shutdown summoned");
  62         ListenableFuture<List<Boolean>> result = SettableFuture.create();
  63         try {
  64             List<ListenableFuture<Boolean>> shutdownChain = new ArrayList<>();
  65             for (ServerFacade server : serverLot) {
  66                 ListenableFuture<Boolean> shutdownFuture = server.shutdown();
  67                 shutdownChain.add(shutdownFuture);
  68             }
  69             if (!shutdownChain.isEmpty()) {
  70                 result = Futures.allAsList(shutdownChain);
  71             } else {
  72                 throw new IllegalStateException("No servers configured");
  73             }
  74         } catch (Exception e) {
  75             SettableFuture<List<Boolean>> exFuture = SettableFuture.create();
  76             exFuture.setException(e);
  77             result = exFuture;
  78         }
  79         return result;
  80     }
  81
  82     @Override
  83     public Future<List<Boolean>> startup() {
  84         LOG.debug("startup summoned");
  85         ListenableFuture<List<Boolean>> result = SettableFuture.create();
  86         try {
  87             if (serverLot.isEmpty()) {
  88                 throw new IllegalStateException("No servers configured");
  89             }
  90             for (ServerFacade server : serverLot) {
  91                 if (server.getIsOnlineFuture().isDone()) {
  92                     throw new IllegalStateException("Servers already running");
  93                 }
  94             }
  95             if (switchConnectionHandler == null) {
  96                 throw new IllegalStateException("switchConnectionHandler is not set");
  97             }
  98             List<ListenableFuture<Boolean>> starterChain = new ArrayList<>();
  99             for (ServerFacade server : serverLot) {
 100                 new Thread(server).start();
 101                 ListenableFuture<Boolean> isOnlineFuture = server.getIsOnlineFuture();
 102                 starterChain.add(isOnlineFuture);
 103             }
 104             if (!starterChain.isEmpty()) {
 105                 result = Futures.allAsList(starterChain);
 106             } else {
 107                 throw new IllegalStateException("No servers configured");
 108             }
 109         } catch (Exception e) {
 110             SettableFuture<List<Boolean>> exFuture = SettableFuture.create();
 111             exFuture.setException(e);
 112             result = exFuture;
 113         }
 114         return result;
 115     }
 116
 117 }