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      * Function called when the activator starts just after some
  36      * initializations are done by the
  37      * ComponentActivatorAbstractBase.
  38      *
  39      */
  40     @Override
  41     public void init() {
  42
  43     }
  44
  45     /**
  46      * Function called when the activator stops just before the
  47      * cleanup done by ComponentActivatorAbstractBase
  48      *
  49      */
  50     @Override
  51     public void destroy() {
  52
  53     }
  54
  55     /**
  56      * Function that is used to communicate to dependency manager the
  57      * list of known implementations for services inside a container
  58      *
  59      *
  60      * @return An array containing all the CLASS objects that will be
  61      * instantiated in order to get an fully working implementation
  62      * Object
  63      */
  64     @Override
  65     public Object[] getImplementations() {
  66         Object[] res = { TopologyManagerImpl.class };
  67         return res;
  68     }
  69
  70     /**
  71      * Function that is called when configuration of the dependencies
  72      * is required.
  73      *
  74      * @param c dependency manager Component object, used for
  75      * configuring the dependencies exported and imported
  76      * @param imp Implementation class that is being configured,
  77      * needed as long as the same routine can configure multiple
  78      * implementations
  79      * @param containerName The containerName being configured, this allow
  80      * also optional per-container different behavior if needed, usually
  81      * should not be the case though.
  82      */
  83     @Override
  84     public void configureInstance(Component c, Object imp, String containerName) {
  85         if (imp.equals(TopologyManagerImpl.class)) {
  86             // export the service needed to listen to topology updates
  87             Dictionary<String, Set<String>> props = new Hashtable<String, Set<String>>();
  88             Set<String> propSet = new HashSet<String>();
  89             propSet.add(TopologyManagerImpl.TOPOEDGESDB);
  90             props.put("cachenames", propSet);
  91
  92             c.setInterface(new String[] { IListenTopoUpdates.class.getName(),
  93                     ITopologyManager.class.getName(),
  94                     IConfigurationContainerAware.class.getName(),
  95                     ICacheUpdateAware.class.getName() }, props);
  96
  97             c.add(createContainerServiceDependency(containerName).setService(
  98                     ITopologyService.class).setCallbacks("setTopoService",
  99                     "unsetTopoService").setRequired(true));
 100
 101             // These are all the listeners for a topology manager
 102             // updates, there could be many or none
 103             c.add(createContainerServiceDependency(containerName).setService(
 104                     ITopologyManagerAware.class).setCallbacks(
 105                     "setTopologyManagerAware", "unsetTopologyManagerAware")
 106                     .setRequired(false));
 107
 108             // These are all the listeners for a topology manager for the
 109             // cluster wide events
 110             // updates, there could be many or none
 111             c.add(createContainerServiceDependency(containerName).setService(ITopologyManagerClusterWideAware.class)
 112                     .setCallbacks("setTopologyManagerClusterWideAware", "unsetTopologyManagerClusterWideAware")
 113                     .setRequired(false));
 114
 115             c.add(createContainerServiceDependency(containerName).setService(
 116                     IClusterContainerServices.class).setCallbacks(
 117                     "setClusterContainerService",
 118                     "unsetClusterContainerService").setRequired(true));
 119         }
 120     }
 121 }