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.ConnectionMgmtScheme;
  21 import org.opendaylight.controller.connectionmanager.IConnectionManager;
  22 import org.opendaylight.controller.sal.connection.IConnectionListener;
  23 import org.opendaylight.controller.sal.connection.IConnectionService;
  24 import org.apache.felix.dm.Component;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  28 import org.opendaylight.controller.sal.inventory.IInventoryService;
  29 import org.opendaylight.controller.sal.inventory.IListenInventoryUpdates;
  30
  31 public class Activator extends ComponentActivatorAbstractBase {
  32     protected static final Logger logger = LoggerFactory
  33             .getLogger(Activator.class);
  34
  35     /**
  36      * Function called when the activator starts just after some
  37      * initializations are done by the
  38      * ComponentActivatorAbstractBase.
  39      *
  40      */
  41     @Override
  42     public void init() {
  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      * Method which tells how many Global implementations are
  56      * supported by the bundle. This way we can tune the number of
  57      * components created. This components will be created ONLY at the
  58      * time of bundle startup and will be destroyed only at time of
  59      * bundle destruction, this is the major difference with the
  60      * implementation retrieved via getImplementations where all of
  61      * them are assumed to be in a container!
  62      *
  63      *
  64      * @return The list of implementations the bundle will support,
  65      * in Global version
  66      */
  67     @Override
  68     protected Object[] getGlobalImplementations() {
  69         Object[] res = { ConnectionManager.class };
  70         return res;
  71     }
  72
  73     /**
  74      * Configure the dependency for a given instance Global
  75      *
  76      * @param c Component assigned for this instance, this will be
  77      * what will be used for configuration
  78      * @param imp implementation to be configured
  79      * @param containerName container on which the configuration happens
  80      */
  81     @Override
  82     protected void configureGlobalInstance(Component c, Object imp) {
  83         if (imp.equals(ConnectionManager.class)) {
  84             Dictionary<String, Object> props = new Hashtable<String, Object>();
  85             Set<String> propSet = new HashSet<String>();
  86             for (ConnectionMgmtScheme scheme:ConnectionMgmtScheme.values()) {
  87                 propSet.add("connectionmanager."+scheme.name()+".nodeconnections");
  88             }
  89             props.put("cachenames", propSet);
  90             props.put("scope", "Global");
  91
  92             // export the service
  93             c.setInterface(new String[] { IConnectionManager.class.getName(),
  94                                           IConnectionListener.class.getName(),
  95                                           ICoordinatorChangeAware.class.getName(),
  96                                           IListenInventoryUpdates.class.getName(),
  97                                           ICacheUpdateAware.class.getName()},
  98                                           props);
  99
 100             c.add(createServiceDependency()
 101                     .setService(IClusterGlobalServices.class)
 102                     .setCallbacks("setClusterServices", "unsetClusterServices")
 103                     .setRequired(true));
 104
 105             c.add(createServiceDependency().setService(IConnectionService.class)
 106                     .setCallbacks("setConnectionService", "unsetConnectionService")
 107                     .setRequired(true));
 108             c.add(createServiceDependency().setService(IInventoryService.class, "(scope=Global)")
 109                     .setCallbacks("setInventoryService", "unsetInventoryService")
 110                     .setRequired(true));
 111         }
 112     }
 113 }