renderers/opflex/src/main/java/org/opendaylight/groupbasedpolicy/renderer/opflex/OpflexRenderer.java

   1 /*
   2  * Copyright (c) 2014 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.groupbasedpolicy.renderer.opflex;
  10
  11 import java.util.concurrent.Executors;
  12 import java.util.concurrent.ScheduledExecutorService;
  13
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  16 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  17 import org.opendaylight.groupbasedpolicy.renderer.opflex.lib.OpflexConnectionService;
  18 import org.opendaylight.groupbasedpolicy.renderer.opflex.mit.AgentOvsMit;
  19 import org.opendaylight.groupbasedpolicy.renderer.opflex.mit.MitLib;
  20 import org.opendaylight.groupbasedpolicy.resolver.PolicyResolver;
  21 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * Renderer that uses OpFlex to implement an overlay network
  27  * using Open vSwitch.
  28  * @author tbachman
  29  */
  30 public class OpflexRenderer implements AutoCloseable {
  31     private static final Logger LOG =
  32             LoggerFactory.getLogger(OpflexRenderer.class);
  33
  34     private final PolicyResolver policyResolver;
  35     private final EndpointManager endpointManager;
  36     private final PolicyManager policyManager;
  37     private final OpflexConnectionService connectionService;
  38     private final MitLib mitLibrary;
  39     private final ScheduledExecutorService executor;
  40
  41     ListenerRegistration<DataChangeListener> configReg;
  42
  43     public OpflexRenderer(DataBroker dataProvider,
  44                              RpcProviderRegistry rpcRegistry) {
  45         super();
  46
  47         int numCPU = Runtime.getRuntime().availableProcessors();
  48         executor = Executors.newScheduledThreadPool(numCPU * 2);
  49
  50         mitLibrary = new MitLib();
  51         MessageUtils.setOpflexLib(mitLibrary);
  52         MessageUtils.init();
  53         MessageUtils.setMit(new AgentOvsMit());
  54
  55         connectionService = new OpflexConnectionService(dataProvider, executor);
  56
  57         endpointManager = new EndpointManager(dataProvider, rpcRegistry,
  58                                               executor, connectionService, mitLibrary);
  59         policyResolver = new PolicyResolver(dataProvider, executor);
  60
  61         policyManager = new PolicyManager(policyResolver,
  62                                           connectionService,
  63                                           executor, mitLibrary);
  64
  65
  66         LOG.info("Initialized OpFlex renderer");
  67     }
  68
  69     // *************
  70     // AutoCloseable
  71     // *************
  72
  73     @Override
  74     public void close() throws Exception {
  75         executor.shutdownNow();
  76         if (configReg != null) configReg.close();
  77         if (policyResolver != null) policyResolver.close();
  78         if (policyManager != null) policyManager.close();
  79         if (connectionService != null) connectionService.close();
  80         if (endpointManager != null) endpointManager.close();
  81     }
  82
  83     // **************
  84     // Implementation
  85     // **************
  86 }