opendaylight/connectionmanager/implementation/src/main/java/org/opendaylight/controller/connectionmanager/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.connectionmanager.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.opendaylight.controller.clustering.services.ICacheUpdateAware;
  18 import org.opendaylight.controller.clustering.services.IClusterGlobalServices;
  19 import org.opendaylight.controller.clustering.services.ICoordinatorChangeAware;
  20 import org.opendaylight.controller.connectionmanager.IConnectionManager;
  21 import org.opendaylight.controller.sal.connection.IConnectionListener;
  22 import org.opendaylight.controller.sal.connection.IConnectionService;
  23 import org.apache.felix.dm.Component;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  27 import org.opendaylight.controller.sal.inventory.IListenInventoryUpdates;
  28
  29 public class Activator extends ComponentActivatorAbstractBase {
  30     protected static final Logger logger = LoggerFactory
  31             .getLogger(Activator.class);
  32
  33     /**
  34      * Function called when the activator starts just after some
  35      * initializations are done by the
  36      * ComponentActivatorAbstractBase.
  37      *
  38      */
  39     public void init() {
  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      * Method which tells how many Global implementations are
  52      * supported by the bundle. This way we can tune the number of
  53      * components created. This components will be created ONLY at the
  54      * time of bundle startup and will be destroyed only at time of
  55      * bundle destruction, this is the major difference with the
  56      * implementation retrieved via getImplementations where all of
  57      * them are assumed to be in a container!
  58      *
  59      *
  60      * @return The list of implementations the bundle will support,
  61      * in Global version
  62      */
  63     protected Object[] getGlobalImplementations() {
  64         Object[] res = { ConnectionManager.class };
  65         return res;
  66     }
  67
  68     /**
  69      * Configure the dependency for a given instance Global
  70      *
  71      * @param c Component assigned for this instance, this will be
  72      * what will be used for configuration
  73      * @param imp implementation to be configured
  74      * @param containerName container on which the configuration happens
  75      */
  76     protected void configureGlobalInstance(Component c, Object imp) {
  77         if (imp.equals(ConnectionManager.class)) {
  78             Dictionary<String, Object> props = new Hashtable<String, Object>();
  79             Set<String> propSet = new HashSet<String>();
  80             propSet.add("connectionmanager.nodeconnections");
  81             props.put("cachenames", propSet);
  82             props.put("scope", "Global");
  83
  84             // export the service
  85             c.setInterface(new String[] { IConnectionManager.class.getName(),
  86                                           IConnectionListener.class.getName(),
  87                                           ICoordinatorChangeAware.class.getName(),
  88                                           IListenInventoryUpdates.class.getName(),
  89                                           ICacheUpdateAware.class.getName()},
  90                                           props);
  91
  92             c.add(createServiceDependency()
  93                     .setService(IClusterGlobalServices.class)
  94                     .setCallbacks("setClusterServices", "unsetClusterServices")
  95                     .setRequired(true));
  96
  97             c.add(createServiceDependency().setService(IConnectionService.class)
  98                     .setCallbacks("setConnectionService", "unsetConnectionService")
  99                     .setRequired(true));
 100         }
 101     }
 102 }