opendaylight/statisticsmanager/implementation/src/main/java/org/opendaylight/controller/statisticsmanager/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.statisticsmanager.internal;
  11
  12 import org.apache.felix.dm.Component;
  13 import org.opendaylight.controller.clustering.services.IClusterContainerServices;
  14 import org.opendaylight.controller.sal.core.ComponentActivatorAbstractBase;
  15 import org.opendaylight.controller.sal.core.IContainer;
  16 import org.opendaylight.controller.sal.inventory.IListenInventoryUpdates;
  17 import org.opendaylight.controller.sal.reader.IReadService;
  18 import org.opendaylight.controller.sal.reader.IReadServiceListener;
  19 import org.opendaylight.controller.statisticsmanager.IStatisticsManager;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class Activator extends ComponentActivatorAbstractBase {
  24     protected static final Logger logger = LoggerFactory.getLogger(Activator.class);
  25
  26     /**
  27      * Function called when the activator starts just after some initializations
  28      * are done by the ComponentActivatorAbstractBase.
  29      *
  30      */
  31     public void init() {
  32     }
  33
  34     /**
  35      * Function called when the activator stops just before the cleanup done by
  36      * ComponentActivatorAbstractBase
  37      *
  38      */
  39     public void destroy() {
  40     }
  41
  42     /**
  43      * Function that is used to communicate to dependency manager the list of
  44      * known implementations for services inside a container
  45      *
  46      *
  47      * @return An array containing all the CLASS objects that will be
  48      *         instantiated in order to get an fully working implementation
  49      *         Object
  50      */
  51     public Object[] getImplementations() {
  52         Object[] res = { StatisticsManager.class };
  53         return res;
  54     }
  55
  56     /**
  57      * Function that is called when configuration of the dependencies is
  58      * required.
  59      *
  60      * @param c
  61      *            dependency manager Component object, used for configuring the
  62      *            dependencies exported and imported
  63      * @param imp
  64      *            Implementation class that is being configured, needed as long
  65      *            as the same routine can configure multiple implementations
  66      * @param containerName
  67      *            The containerName being configured, this allow also optional
  68      *            per-container different behavior if needed, usually should not
  69      *            be the case though.
  70      */
  71     public void configureInstance(Component c, Object imp, String containerName) {
  72         if (imp.equals(StatisticsManager.class)) {
  73             // export the service
  74             c.setInterface(new String[] {
  75                     IStatisticsManager.class.getName(),
  76                     IReadServiceListener.class.getName(),
  77                     IListenInventoryUpdates.class.getName() }, null);
  78
  79             c.add(createContainerServiceDependency(containerName).setService(IReadService.class)
  80                     .setCallbacks("setReaderService", "unsetReaderService").setRequired(true));
  81             c.add(createContainerServiceDependency(containerName).setService(IClusterContainerServices.class)
  82                     .setCallbacks("setClusterContainerService", "unsetClusterContainerService").setRequired(true));
  83             c.add(createContainerServiceDependency(containerName).setService(IContainer.class)
  84                     .setCallbacks("setIContainer", "unsetIContainer").setRequired(true));
  85
  86         }
  87     }
  88 }