opendaylight/hosttracker/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.HashSet;
  13 import java.util.Hashtable;
  14 import java.util.Set;
  15
  16 import org.apache.felix.dm.Component;
  17 import org.opendaylight.controller.clustering.services.ICacheUpdateAware;
  18 import org.opendaylight.controller.clustering.services.IClusterContainerServices;
  19 import org.opendaylight.controller.hosttracker.IfHostListener;
  20 import org.opendaylight.controller.hosttracker.IfIptoHost;
  21 import org.opendaylight.controller.hosttracker.IfNewHostNotify;
  22 import org.opendaylight.controller.hosttracker.hostAware.IHostFinder;
  23 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  24 import org.opendaylight.controller.switchmanager.IInventoryListener;
  25 import org.opendaylight.controller.switchmanager.ISwitchManager;
  26 import org.opendaylight.controller.switchmanager.ISwitchManagerAware;
  27 import org.opendaylight.controller.topologymanager.ITopologyManager;
  28 import org.opendaylight.controller.topologymanager.ITopologyManagerAware;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class Activator extends ComponentActivatorAbstractBase {
  33     protected static final Logger logger = LoggerFactory
  34             .getLogger(Activator.class);
  35
  36
  37     /**
  38      * Function that is used to communicate to dependency manager the list of
  39      * known implementations for services inside a container
  40      *
  41      *
  42      * @return An array containing all the CLASS objects that will be
  43      *         instantiated in order to get an fully working implementation
  44      *         Object
  45      */
  46     @Override
  47     public Object[] getImplementations() {
  48         Object[] res = { HostTracker.class };
  49         return res;
  50     }
  51
  52     /**
  53      * Function that is called when configuration of the dependencies is
  54      * required.
  55      *
  56      * @param c
  57      *            dependency manager Component object, used for configuring the
  58      *            dependencies exported and imported
  59      * @param imp
  60      *            Implementation class that is being configured, needed as long
  61      *            as the same routine can configure multiple implementations
  62      * @param containerName
  63      *            The containerName being configured, this allow also optional
  64      *            per-container different behavior if needed, usually should not
  65      *            be the case though.
  66      */
  67     @Override
  68     public void configureInstance(Component c, Object imp, String containerName) {
  69         if (imp.equals(HostTracker.class)) {
  70             Dictionary<String, Object> props = new Hashtable<String, Object>();
  71             Set<String> propSet = new HashSet<String>();
  72             propSet.add(HostTracker.ACTIVE_HOST_CACHE);
  73             props.put("cachenames", propSet);
  74
  75             // export the service
  76             c.setInterface(
  77                     new String[] { ISwitchManagerAware.class.getName(),
  78                             IInventoryListener.class.getName(),
  79                             IfIptoHost.class.getName(),
  80                             IfHostListener.class.getName(),
  81                             ITopologyManagerAware.class.getName(),
  82                             ICacheUpdateAware.class.getName() }, props);
  83
  84             c.add(createContainerServiceDependency(containerName)
  85                     .setService(ISwitchManager.class)
  86                     .setCallbacks("setSwitchManager", "unsetSwitchManager")
  87                     .setRequired(false));
  88             c.add(createContainerServiceDependency(containerName)
  89                     .setService(IClusterContainerServices.class)
  90                     .setCallbacks("setClusterContainerService",
  91                             "unsetClusterContainerService").setRequired(true));
  92             c.add(createContainerServiceDependency(containerName)
  93                     .setService(IHostFinder.class)
  94                     .setCallbacks("setArpHandler", "unsetArpHandler")
  95                     .setRequired(false));
  96             c.add(createContainerServiceDependency(containerName)
  97                     .setService(ITopologyManager.class)
  98                     .setCallbacks("setTopologyManager", "unsetTopologyManager")
  99                     .setRequired(false));
 100             c.add(createContainerServiceDependency(containerName)
 101                     .setService(IfNewHostNotify.class)
 102                     .setCallbacks("setnewHostNotify", "unsetnewHostNotify")
 103                     .setRequired(false));
 104         }
 105     }
 106 }