opendaylight/routing/dijkstra_implementation/src/main/java/org/opendaylight/controller/routing/dijkstra_implementation/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.routing.dijkstra_implementation.internal;
  11
  12 import java.util.Dictionary;
  13 import java.util.Hashtable;
  14 import org.apache.felix.dm.Component;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  19 import org.opendaylight.controller.sal.routing.IListenRoutingUpdates;
  20 import org.opendaylight.controller.sal.routing.IRouting;
  21 import org.opendaylight.controller.sal.topology.IListenTopoUpdates;
  22 import org.opendaylight.controller.switchmanager.ISwitchManager;
  23 import org.opendaylight.controller.sal.reader.IReadService;
  24
  25 public class Activator extends ComponentActivatorAbstractBase {
  26     protected static final Logger logger = LoggerFactory
  27             .getLogger(Activator.class);
  28
  29     /**
  30      * Function called when the activator starts just after some
  31      * initializations are done by the
  32      * ComponentActivatorAbstractBase.
  33      *
  34      */
  35     public void init() {
  36         logger.debug("routing.dijkstra_implementation INIT called!");
  37     }
  38
  39     /**
  40      * Function called when the activator stops just before the
  41      * cleanup done by ComponentActivatorAbstractBase
  42      *
  43      */
  44     public void destroy() {
  45
  46     }
  47
  48     /**
  49      * Function that is used to communicate to dependency manager the
  50      * list of known implementations for services inside a container
  51      *
  52      *
  53      * @return An array containing all the CLASS objects that will be
  54      * instantiated in order to get an fully working implementation
  55      * Object
  56      */
  57     public Object[] getImplementations() {
  58         Object[] res = { DijkstraImplementation.class };
  59         return res;
  60     }
  61
  62     /**
  63      * Function that is called when configuration of the dependencies
  64      * is required.
  65      *
  66      * @param c dependency manager Component object, used for
  67      * configuring the dependencies exported and imported
  68      * @param imp Implementation class that is being configured,
  69      * needed as long as the same routine can configure multiple
  70      * implementations
  71      * @param containerName The containerName being configured, this allow
  72      * also optional per-container different behavior if needed, usually
  73      * should not be the case though.
  74      */
  75     public void configureInstance(Component c, Object imp, String containerName) {
  76         if (imp.equals(DijkstraImplementation.class)) {
  77             // export the service
  78             Dictionary<String, String> props = new Hashtable<String, String>();
  79             props.put("salListenerName", "routing.Dijkstra");
  80             c.setInterface(new String[] { IListenTopoUpdates.class.getName(),
  81                     IRouting.class.getName() }, props);
  82
  83             // Now lets add a service dependency to make sure the
  84             // provider of service exists
  85             c.add(createContainerServiceDependency(containerName).setService(
  86                     IListenRoutingUpdates.class).setCallbacks(
  87                     "setLIstenRoutingUpdates", "unsetLIstenRoutingUpdates")
  88                     .setRequired(false));
  89
  90             c.add(createContainerServiceDependency(containerName).setService(
  91                     ISwitchManager.class).setCallbacks("setSwitchManager",
  92                     "unsetSwitchManager").setRequired(true));
  93
  94             c.add(createContainerServiceDependency(containerName).setService(
  95                     IReadService.class).setCallbacks("setReadService",
  96                     "unsetReadService").setRequired(true));
  97         }
  98     }
  99 }