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      * Function called when the activator starts just after some initializations
  38      * are done by the ComponentActivatorAbstractBase.
  39      *
  40      */
  41     @Override
  42     public void init() {
  43     }
  44
  45     /**
  46      * Function called when the activator stops just before the cleanup done by
  47      * ComponentActivatorAbstractBase
  48      *
  49      */
  50     @Override
  51     public void destroy() {
  52     }
  53
  54     /**
  55      * Function that is used to communicate to dependency manager the list of
  56      * known implementations for services inside a container
  57      *
  58      *
  59      * @return An array containing all the CLASS objects that will be
  60      *         instantiated in order to get an fully working implementation
  61      *         Object
  62      */
  63     @Override
  64     public Object[] getImplementations() {
  65         Object[] res = { HostTracker.class };
  66         return res;
  67     }
  68
  69     /**
  70      * Function that is called when configuration of the dependencies is
  71      * required.
  72      *
  73      * @param c
  74      *            dependency manager Component object, used for configuring the
  75      *            dependencies exported and imported
  76      * @param imp
  77      *            Implementation class that is being configured, needed as long
  78      *            as the same routine can configure multiple implementations
  79      * @param containerName
  80      *            The containerName being configured, this allow also optional
  81      *            per-container different behavior if needed, usually should not
  82      *            be the case though.
  83      */
  84     @Override
  85     public void configureInstance(Component c, Object imp, String containerName) {
  86         if (imp.equals(HostTracker.class)) {
  87             Dictionary<String, Object> props = new Hashtable<String, Object>();
  88             Set<String> propSet = new HashSet<String>();
  89             propSet.add(HostTracker.ACTIVE_HOST_CACHE);
  90             props.put("cachenames", propSet);
  91
  92             // export the service
  93             c.setInterface(
  94                     new String[] { ISwitchManagerAware.class.getName(),
  95                             IInventoryListener.class.getName(),
  96                             IfIptoHost.class.getName(),
  97                             IfHostListener.class.getName(),
  98                             ITopologyManagerAware.class.getName(),
  99                             ICacheUpdateAware.class.getName() }, props);
 100
 101             c.add(createContainerServiceDependency(containerName)
 102                     .setService(ISwitchManager.class)
 103                     .setCallbacks("setSwitchManager", "unsetSwitchManager")
 104                     .setRequired(false));
 105             c.add(createContainerServiceDependency(containerName)
 106                     .setService(IClusterContainerServices.class)
 107                     .setCallbacks("setClusterContainerService",
 108                             "unsetClusterContainerService").setRequired(true));
 109             c.add(createContainerServiceDependency(containerName)
 110                     .setService(IHostFinder.class)
 111                     .setCallbacks("setArpHandler", "unsetArpHandler")
 112                     .setRequired(false));
 113             c.add(createContainerServiceDependency(containerName)
 114                     .setService(ITopologyManager.class)
 115                     .setCallbacks("setTopologyManager", "unsetTopologyManager")
 116                     .setRequired(false));
 117             c.add(createContainerServiceDependency(containerName)
 118                     .setService(IfNewHostNotify.class)
 119                     .setCallbacks("setnewHostNotify", "unsetnewHostNotify")
 120                     .setRequired(false));
 121         }
 122     }
 123 }