opendaylight/topologymanager/implementation/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.ICacheUpdateAware;
  19 import org.opendaylight.controller.clustering.services.IClusterContainerServices;
  20 import org.opendaylight.controller.configuration.IConfigurationContainerAware;
  21 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  22 import org.opendaylight.controller.sal.topology.IListenTopoUpdates;
  23 import org.opendaylight.controller.sal.topology.ITopologyService;
  24 import org.opendaylight.controller.topologymanager.ITopologyManager;
  25 import org.opendaylight.controller.topologymanager.ITopologyManagerAware;
  26 import org.opendaylight.controller.topologymanager.ITopologyManagerClusterWideAware;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class Activator extends ComponentActivatorAbstractBase {
  31     protected static final Logger logger = LoggerFactory
  32             .getLogger(Activator.class);
  33
  34
  35     /**
  36      * Function that is used to communicate to dependency manager the
  37      * list of known implementations for services inside a container
  38      *
  39      *
  40      * @return An array containing all the CLASS objects that will be
  41      * instantiated in order to get an fully working implementation
  42      * Object
  43      */
  44     @Override
  45     public Object[] getImplementations() {
  46         Object[] res = { TopologyManagerImpl.class };
  47         return res;
  48     }
  49
  50     /**
  51      * Function that is called when configuration of the dependencies
  52      * is required.
  53      *
  54      * @param c dependency manager Component object, used for
  55      * configuring the dependencies exported and imported
  56      * @param imp Implementation class that is being configured,
  57      * needed as long as the same routine can configure multiple
  58      * implementations
  59      * @param containerName The containerName being configured, this allow
  60      * also optional per-container different behavior if needed, usually
  61      * should not be the case though.
  62      */
  63     @Override
  64     public void configureInstance(Component c, Object imp, String containerName) {
  65         if (imp.equals(TopologyManagerImpl.class)) {
  66             // export the service needed to listen to topology updates
  67             Dictionary<String, Set<String>> props = new Hashtable<String, Set<String>>();
  68             Set<String> propSet = new HashSet<String>();
  69             propSet.add(TopologyManagerImpl.TOPOEDGESDB);
  70             props.put("cachenames", propSet);
  71
  72             c.setInterface(new String[] { IListenTopoUpdates.class.getName(),
  73                     ITopologyManager.class.getName(),
  74                     IConfigurationContainerAware.class.getName(),
  75                     ICacheUpdateAware.class.getName() }, props);
  76
  77             c.add(createContainerServiceDependency(containerName).setService(
  78                     ITopologyService.class).setCallbacks("setTopoService",
  79                     "unsetTopoService").setRequired(true));
  80
  81             // These are all the listeners for a topology manager
  82             // updates, there could be many or none
  83             c.add(createContainerServiceDependency(containerName).setService(
  84                     ITopologyManagerAware.class).setCallbacks(
  85                     "setTopologyManagerAware", "unsetTopologyManagerAware")
  86                     .setRequired(false));
  87
  88             // These are all the listeners for a topology manager for the
  89             // cluster wide events
  90             // updates, there could be many or none
  91             c.add(createContainerServiceDependency(containerName).setService(ITopologyManagerClusterWideAware.class)
  92                     .setCallbacks("setTopologyManagerClusterWideAware", "unsetTopologyManagerClusterWideAware")
  93                     .setRequired(false));
  94
  95             c.add(createContainerServiceDependency(containerName).setService(
  96                     IClusterContainerServices.class).setCallbacks(
  97                     "setClusterContainerService",
  98                     "unsetClusterContainerService").setRequired(true));
  99         }
 100     }
 101 }