opendaylight/hosttracker/implementation/src/main/java/org/opendaylight/controller/hosttracker/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.hosttracker.internal;
  11
  12 import org.apache.felix.dm.Component;
  13 import org.opendaylight.controller.hosttracker.internal.HostTracker;
  14 import org.opendaylight.controller.hosttracker.IfHostListener;
  15 import org.opendaylight.controller.hosttracker.IfIptoHost;
  16 import org.opendaylight.controller.hosttracker.IfNewHostNotify;
  17 import org.opendaylight.controller.hosttracker.hostAware.IHostFinder;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 import org.opendaylight.controller.clustering.services.IClusterContainerServices;
  22 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  23 import org.opendaylight.controller.switchmanager.IInventoryListener;
  24 import org.opendaylight.controller.switchmanager.ISwitchManager;
  25 import org.opendaylight.controller.switchmanager.ISwitchManagerAware;
  26 import org.opendaylight.controller.topologymanager.ITopologyManager;
  27 import org.opendaylight.controller.topologymanager.ITopologyManagerAware;
  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      * Function that is used to communicate to dependency manager the
  52      * list of known implementations for services inside a container
  53      *
  54      *
  55      * @return An array containing all the CLASS objects that will be
  56      * instantiated in order to get an fully working implementation
  57      * Object
  58      */
  59     public Object[] getImplementations() {
  60         Object[] res = { HostTracker.class };
  61         return res;
  62     }
  63
  64     /**
  65      * Function that is called when configuration of the dependencies
  66      * is required.
  67      *
  68      * @param c dependency manager Component object, used for
  69      * configuring the dependencies exported and imported
  70      * @param imp Implementation class that is being configured,
  71      * needed as long as the same routine can configure multiple
  72      * implementations
  73      * @param containerName The containerName being configured, this allow
  74      * also optional per-container different behavior if needed, usually
  75      * should not be the case though.
  76      */
  77     public void configureInstance(Component c, Object imp, String containerName) {
  78         if (imp.equals(HostTracker.class)) {
  79             // export the service
  80             c.setInterface(new String[] { ISwitchManagerAware.class.getName(),
  81                     IInventoryListener.class.getName(),
  82                     IfIptoHost.class.getName(), IfHostListener.class.getName(),
  83                     ITopologyManagerAware.class.getName() }, null);
  84
  85             c.add(createContainerServiceDependency(containerName).setService(
  86                     ISwitchManager.class).setCallbacks("setSwitchManager",
  87                     "unsetSwitchManager").setRequired(false));
  88             c.add(createContainerServiceDependency(containerName).setService(
  89                     IClusterContainerServices.class).setCallbacks(
  90                     "setClusterContainerService",
  91                     "unsetClusterContainerService").setRequired(true));
  92             c.add(createContainerServiceDependency(containerName).setService(
  93                     IHostFinder.class).setCallbacks("setArpHandler",
  94                     "unsetArpHandler").setRequired(false));
  95             c.add(createContainerServiceDependency(containerName).setService(
  96                     ITopologyManager.class).setCallbacks("setTopologyManager",
  97                     "unsetTopologyManager").setRequired(false));
  98             c.add(createContainerServiceDependency(containerName).setService(
  99                     IfNewHostNotify.class).setCallbacks("setnewHostNotify",
 100                     "unsetnewHostNotify").setRequired(false));
 101         }
 102     }
 103
 104     /**
 105      * Method which tells how many Global implementations are
 106      * supported by the bundle. This way we can tune the number of
 107      * components created. This components will be created ONLY at the
 108      * time of bundle startup and will be destroyed only at time of
 109      * bundle destruction, this is the major difference with the
 110      * implementation retrieved via getImplementations where all of
 111      * them are assumed to be in a container !
 112      *
 113      *
 114      * @return The list of implementations the bundle will support,
 115      * in Global version
 116      */
 117     protected Object[] getGlobalImplementations() {
 118         return null;
 119     }
 120
 121     /**
 122      * Configure the dependency for a given instance Global
 123      *
 124      * @param c Component assigned for this instance, this will be
 125      * what will be used for configuration
 126      * @param imp implementation to be configured
 127      * @param containerName container on which the configuration happens
 128      */
 129     protected void configureGlobalInstance(Component c, Object imp) {
 130         if (imp.equals(HostTracker.class)) {
 131         }
 132     }
 133 }