opendaylight/hosttracker_new/implementation/src/main/java/org/opendaylight/controller/hosttracker/internal/Activator.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.hosttracker.internal;
  10
  11 import java.util.Dictionary;
  12 import java.util.Hashtable;
  13
  14 import org.apache.felix.dm.Component;
  15 import org.opendaylight.controller.hosttracker.IDeviceService;
  16 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  17 import org.opendaylight.controller.sal.packet.IDataPacketService;
  18 import org.opendaylight.controller.sal.packet.IListenDataPacket;
  19 import org.opendaylight.controller.switchmanager.ISwitchManager;
  20 import org.opendaylight.controller.topologymanager.ITopologyManager;
  21 import org.opendaylight.controller.topologymanager.ITopologyManagerAware;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 public class Activator extends ComponentActivatorAbstractBase {
  26     protected static final Logger logger = LoggerFactory
  27             .getLogger(Activator.class);
  28
  29     @Override
  30     protected void init() {
  31
  32     }
  33
  34     @Override
  35     protected void destroy() {
  36
  37     }
  38
  39     /**
  40      * Function that is used to communicate to dependency manager the list of
  41      * known implementations for services inside a container
  42      *
  43      *
  44      * @return An array containing all the CLASS objects that will be
  45      *         instantiated in order to get an fully working implementation
  46      *         Object
  47      */
  48     @Override
  49     public Object[] getImplementations() {
  50         Object[] res = { DeviceManagerImpl.class };
  51         return res;
  52     }
  53
  54     /**
  55      * Function that is called when configuration of the dependencies is
  56      * required.
  57      *
  58      * @param c
  59      *            dependency manager Component object, used for configuring the
  60      *            dependencies exported and imported
  61      * @param imp
  62      *            Implementation class that is being configured, needed as long
  63      *            as the same routine can configure multiple implementations
  64      * @param containerName
  65      *            The containerName being configured, this allow also optional
  66      *            per-container different behavior if needed, usually should not
  67      *            be the case though.
  68      */
  69     @Override
  70     public void configureInstance(Component c, Object imp, String containerName) {
  71         if (imp.equals(DeviceManagerImpl.class)) {
  72             // export the service
  73             // XXX - TODO merge with existing APIs
  74             Dictionary<String, String> props = new Hashtable<String, String>();
  75             props.put("salListenerName", "devicemanager");
  76
  77             c.setInterface(new String[] { IDeviceService.class.getName(),
  78                     IListenDataPacket.class.getName(),
  79                     ITopologyManagerAware.class.getName() }, props);
  80
  81             c.add(createContainerServiceDependency(containerName)
  82                     .setService(ISwitchManager.class)
  83                     .setCallbacks("setSwitchManager", "unsetSwitchManager")
  84                     .setRequired(false));
  85
  86             c.add(createContainerServiceDependency(containerName)
  87                     .setService(IDataPacketService.class)
  88                     .setCallbacks("setDataPacketService",
  89                             "unsetDataPacketService").setRequired(true));
  90
  91             // c.add(createContainerServiceDependency(containerName).setService(
  92             // IClusterContainerServices.class).setCallbacks(
  93             // "setClusterContainerService",
  94             // "unsetClusterContainerService").setRequired(true));
  95             c.add(createContainerServiceDependency(containerName)
  96                     .setService(ITopologyManager.class)
  97                     .setCallbacks("setTopologyManager", "unsetTopologyManager")
  98                     .setRequired(false));
  99
 100             c.add(createContainerServiceDependency(containerName)
 101                     .setService(IDataPacketService.class)
 102                     .setCallbacks("setDataPacketService",
 103                             "unsetDataPacketService").setRequired(true));
 104         }
 105     }
 106
 107     /**
 108      * Method which tells how many Global implementations are supported by the
 109      * bundle. This way we can tune the number of components created. This
 110      * components will be created ONLY at the time of bundle startup and will be
 111      * destroyed only at time of bundle destruction, this is the major
 112      * difference with the implementation retrieved via getImplementations where
 113      * all of them are assumed to be in a container !
 114      *
 115      *
 116      * @return The list of implementations the bundle will support, in Global
 117      *         version
 118      */
 119     @Override
 120     protected Object[] getGlobalImplementations() {
 121         return null;
 122     }
 123
 124     /**
 125      * Configure the dependency for a given instance Global
 126      *
 127      * @param c
 128      *            Component assigned for this instance, this will be what will
 129      *            be used for configuration
 130      * @param imp
 131      *            implementation to be configured
 132      * @param containerName
 133      *            container on which the configuration happens
 134      */
 135     @Override
 136     protected void configureGlobalInstance(Component c, Object imp) {
 137
 138     }
 139
 140 }