git.opendaylight Code Review - sfc.git/blob

   1 /**
   2  * Copyright (c) 2014, 2017 Ericsson India Global Services Pvt Ltd. 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.sfc.ofrenderer;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  13 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  14 import org.opendaylight.sfc.ofrenderer.listeners.SfcOfRendererDataListener;
  15 import org.opendaylight.sfc.ofrenderer.listeners.SfcOfRspDataListener;
  16 import org.opendaylight.sfc.ofrenderer.listeners.SfcOfSfgDataListener;
  17 import org.opendaylight.sfc.ofrenderer.openflow.SfcIpv4PacketInHandler;
  18 import org.opendaylight.sfc.ofrenderer.openflow.SfcOfFlowProgrammerImpl;
  19 import org.opendaylight.sfc.ofrenderer.openflow.SfcOfFlowProgrammerInterface;
  20 import org.opendaylight.sfc.ofrenderer.processors.SfcOfRspProcessor;
  21 import org.opendaylight.sfc.ofrenderer.utils.SfcOfBaseProviderUtils;
  22 import org.opendaylight.sfc.ofrenderer.utils.SfcOfProviderUtils;
  23 import org.opendaylight.sfc.ofrenderer.utils.SfcSynchronizer;
  24 import org.opendaylight.sfc.util.openflow.writer.SfcOfFlowWriterImpl;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Entry point for the sfc openflow renderer (blueprint-instantiated).
  31  */
  32 public final class SfcOfRenderer implements AutoCloseable {
  33     private static final Logger LOG = LoggerFactory.getLogger(SfcOfRenderer.class);
  34
  35     private final SfcOfRspProcessor sfcOfRspProcessor;
  36     private final SfcOfFlowProgrammerInterface sfcOfFlowProgrammer;
  37     private final Registration pktInRegistration;
  38     private final SfcSynchronizer sfcSynchronizer;
  39
  40     private SfcOfRspDataListener openflowRspDataListener;
  41     private SfcOfSfgDataListener sfcOfSfgDataListener;
  42     private SfcIpv4PacketInHandler packetInHandler;
  43     private SfcOfRendererDataListener sfcOfRendererListener;
  44
  45     public SfcOfRenderer(DataBroker dataBroker, NotificationProviderService notificationService,
  46                           RpcProviderRegistry rpcProviderRegistry) {
  47         LOG.info("SfcOfRenderer starting the SfcOfRenderer plugin...");
  48
  49         this.sfcSynchronizer = new SfcSynchronizer();
  50         SfcOfFlowWriterImpl sfcofflowwriterimpl = new SfcOfFlowWriterImpl();
  51         sfcofflowwriterimpl.setDataProvider(dataBroker);
  52         this.sfcOfFlowProgrammer = new SfcOfFlowProgrammerImpl(sfcofflowwriterimpl);
  53         SfcOfBaseProviderUtils sfcOfProviderUtils = new SfcOfProviderUtils();
  54         this.sfcOfRspProcessor = new SfcOfRspProcessor(sfcOfFlowProgrammer, sfcOfProviderUtils, sfcSynchronizer,
  55                 rpcProviderRegistry, dataBroker);
  56
  57         this.openflowRspDataListener = new SfcOfRspDataListener(dataBroker, sfcOfRspProcessor);
  58         this.sfcOfSfgDataListener = new SfcOfSfgDataListener(dataBroker, sfcOfFlowProgrammer, sfcOfProviderUtils);
  59         this.sfcOfRendererListener = new SfcOfRendererDataListener(dataBroker, sfcOfFlowProgrammer, sfcSynchronizer);
  60
  61         this.packetInHandler = new SfcIpv4PacketInHandler((SfcOfFlowProgrammerImpl) sfcOfFlowProgrammer);
  62         this.pktInRegistration = notificationService.registerNotificationListener(packetInHandler);
  63
  64         LOG.info("SfcOfRenderer successfully started the SfcOfRenderer plugin");
  65     }
  66
  67     /**
  68      * Implemented from the AutoCloseable interface.
  69      */
  70     @Override
  71     public void close() throws Exception {
  72         LOG.info("SfcOfRenderer auto-closed");
  73         try {
  74             if (sfcOfFlowProgrammer != null) {
  75                 sfcOfFlowProgrammer.shutdown();
  76             }
  77             if (pktInRegistration != null) {
  78                 pktInRegistration.close();
  79             }
  80             openflowRspDataListener.close();
  81         } finally {
  82             openflowRspDataListener = null;
  83         }
  84     }
  85 }