affinity/implementation/src/main/java/org/opendaylight/affinity/affinity/internal/Activator.java

   1 /*
   2  * Copyright (c) 2013 Plexxi, 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.affinity.affinity.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.configuration.IConfigurationContainerAware;
  20 import org.opendaylight.controller.hosttracker.IfIptoHost;
  21 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  22 import org.opendaylight.affinity.affinity.IAffinityManager;
  23 import org.opendaylight.affinity.affinity.IAffinityManagerAware;
  24 import org.opendaylight.controller.switchmanager.ISwitchManager;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27 import org.opendaylight.affinity.l2agent.IfL2Agent;
  28 import org.opendaylight.controller.sal.flowprogrammer.IFlowProgrammerService;
  29
  30 /**
  31  * AffinityManager Bundle Activator
  32  *
  33  *
  34  */
  35 public class Activator extends ComponentActivatorAbstractBase {
  36     protected static final Logger logger = LoggerFactory
  37             .getLogger(Activator.class);
  38
  39     /**
  40      * Function called when the activator starts just after some
  41      * initializations are done by the
  42      * ComponentActivatorAbstractBase.
  43      *
  44      */
  45     public void init() {
  46
  47     }
  48
  49     /**
  50      * Function called when the activator stops just before the
  51      * cleanup done by ComponentActivatorAbstractBase
  52      *
  53      */
  54     public void destroy() {
  55
  56     }
  57
  58     /**
  59      * Function that is used to communicate to dependency manager the
  60      * list of known implementations for services inside a container
  61      *
  62      *
  63      * @return An array containing all the CLASS objects that will be
  64      * instantiated in order to get an fully working implementation
  65      * Object
  66      */
  67     public Object[] getImplementations() {
  68         Object[] res = { AffinityManagerImpl.class };
  69         return res;
  70     }
  71
  72     /**
  73      * Function that is called when configuration of the dependencies
  74      * is required.
  75      *
  76      * @param c dependency manager Component object, used for
  77      * configuring the dependencies exported and imported
  78      * @param imp Implementation class that is being configured,
  79      * needed as long as the same routine can configure multiple
  80      * implementations
  81      * @param containerName The containerName being configured, this allow
  82      * also optional per-container different behavior if needed, usually
  83      * should not be the case though.
  84      */
  85     public void configureInstance(Component c, Object imp, String containerName) {
  86         if (imp.equals(AffinityManagerImpl.class)) {
  87             Dictionary<String, Set<String>> props = new Hashtable<String, Set<String>>();
  88             Set<String> propSet = new HashSet<String>();
  89             propSet.add("affinitymanager.configSaveEvent");
  90             props.put("cachenames", propSet);
  91             // export the service
  92             c.setInterface(new String[] {
  93                     IAffinityManager.class.getName(),
  94                     ICacheUpdateAware.class.getName(),
  95                     IConfigurationContainerAware.class.getName() }, props);
  96
  97             // Now lets add a service dependency to make sure the
  98             // provider of service exists
  99             /* L2agent dependency causes the service to fail activation. tbd. */
 100             c.add(createContainerServiceDependency(containerName)
 101                   .setService(IfL2Agent.class)
 102                   .setCallbacks("setL2Agent", "unsetL2Agent")
 103                   .setRequired(true));
 104             c.add(createContainerServiceDependency(containerName).setService(IFlowProgrammerService.class)
 105                     .setCallbacks("setFlowProgrammerService", "unsetFlowProgrammerService").setRequired(true));
 106             c.add(createContainerServiceDependency(containerName).setService(
 107                     IClusterContainerServices.class).setCallbacks(
 108                     "setClusterContainerService",
 109                     "unsetClusterContainerService").setRequired(true));
 110             c.add(createContainerServiceDependency(containerName).setService(IfIptoHost.class)
 111                   .setCallbacks("setHostTracker", "unsetHostTracker").setRequired(true));
 112             c.add(createContainerServiceDependency(containerName)
 113                     .setService(ISwitchManager.class)
 114                     .setCallbacks("setSwitchManager", "unsetSwitchManager")
 115                     .setRequired(true));
 116             c.add(createContainerServiceDependency(containerName).setService(
 117                     IAffinityManagerAware.class).setCallbacks(
 118                     "setAffinityManagerAware", "unsetAffinityManagerAware")
 119                     .setRequired(false));
 120         }
 121     }
 122 }