opendaylight/topologymanager/src/main/java/org/opendaylight/controller/topologymanager/internal/Activator.java

   1
   2 /*
   3  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   4  *
   5  * This program and the accompanying materials are made available under the
   6  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   7  * and is available at http://www.eclipse.org/legal/epl-v10.html
   8  */
   9
  10 package org.opendaylight.controller.topologymanager.internal;
  11
  12 import java.util.Dictionary;
  13 import java.util.HashSet;
  14 import java.util.Hashtable;
  15 import java.util.Set;
  16
  17 import org.apache.felix.dm.Component;
  18 import org.opendaylight.controller.clustering.services.IClusterContainerServices;
  19 import org.opendaylight.controller.configuration.IConfigurationContainerAware;
  20 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  21 import org.opendaylight.controller.sal.topology.IListenTopoUpdates;
  22 import org.opendaylight.controller.sal.topology.ITopologyService;
  23 import org.opendaylight.controller.topologymanager.ITopologyManager;
  24 import org.opendaylight.controller.topologymanager.ITopologyManagerAware;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 public class Activator extends ComponentActivatorAbstractBase {
  29     protected static final Logger logger = LoggerFactory
  30             .getLogger(Activator.class);
  31
  32     /**
  33      * Function called when the activator starts just after some
  34      * initializations are done by the
  35      * ComponentActivatorAbstractBase.
  36      *
  37      */
  38     public void init() {
  39
  40     }
  41
  42     /**
  43      * Function called when the activator stops just before the
  44      * cleanup done by ComponentActivatorAbstractBase
  45      *
  46      */
  47     public void destroy() {
  48
  49     }
  50
  51     /**
  52      * Function that is used to communicate to dependency manager the
  53      * list of known implementations for services inside a container
  54      *
  55      *
  56      * @return An array containing all the CLASS objects that will be
  57      * instantiated in order to get an fully working implementation
  58      * Object
  59      */
  60     public Object[] getImplementations() {
  61         Object[] res = { TopologyManagerImpl.class };
  62         return res;
  63     }
  64
  65     /**
  66      * Function that is called when configuration of the dependencies
  67      * is required.
  68      *
  69      * @param c dependency manager Component object, used for
  70      * configuring the dependencies exported and imported
  71      * @param imp Implementation class that is being configured,
  72      * needed as long as the same routine can configure multiple
  73      * implementations
  74      * @param containerName The containerName being configured, this allow
  75      * also optional per-container different behavior if needed, usually
  76      * should not be the case though.
  77      */
  78     public void configureInstance(Component c, Object imp, String containerName) {
  79         if (imp.equals(TopologyManagerImpl.class)) {
  80             // export the service needed to listen to topology updates
  81             Dictionary<String, Set<String>> props = new Hashtable<String, Set<String>>();
  82             Set<String> propSet = new HashSet<String>();
  83             propSet.add("topologymanager.configSaveEvent");
  84             props.put("cachenames", propSet);
  85
  86             c.setInterface(new String[] { IListenTopoUpdates.class.getName(),
  87                     ITopologyManager.class.getName(),
  88                     IConfigurationContainerAware.class.getName() }, props);
  89
  90             c.add(createContainerServiceDependency(containerName).setService(
  91                     ITopologyService.class).setCallbacks("setTopoService",
  92                     "unsetTopoService").setRequired(true));
  93
  94             // These are all the listeners for a topology manager
  95             // updates, there could be many or none
  96             c.add(createContainerServiceDependency(containerName).setService(
  97                     ITopologyManagerAware.class).setCallbacks(
  98                     "setTopologyManagerAware", "unsetTopologyManagerAware")
  99                     .setRequired(false));
 100
 101             c.add(createContainerServiceDependency(containerName).setService(
 102                     IClusterContainerServices.class).setCallbacks(
 103                     "setClusterContainerService",
 104                     "unsetClusterContainerService").setRequired(true));
 105         }
 106     }
 107 }