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     /**
  28      * Function that is used to communicate to dependency manager the list of
  29      * known implementations for services inside a container
  30      *
  31      *
  32      * @return An array containing all the CLASS objects that will be
  33      *         instantiated in order to get an fully working implementation
  34      *         Object
  35      */
  36     public Object[] getImplementations() {
  37         Object[] res = { StatisticsManager.class };
  38         return res;
  39     }
  40
  41     /**
  42      * Function that is called when configuration of the dependencies is
  43      * required.
  44      *
  45      * @param c
  46      *            dependency manager Component object, used for configuring the
  47      *            dependencies exported and imported
  48      * @param imp
  49      *            Implementation class that is being configured, needed as long
  50      *            as the same routine can configure multiple implementations
  51      * @param containerName
  52      *            The containerName being configured, this allow also optional
  53      *            per-container different behavior if needed, usually should not
  54      *            be the case though.
  55      */
  56     public void configureInstance(Component c, Object imp, String containerName) {
  57         if (imp.equals(StatisticsManager.class)) {
  58             // export the service
  59             c.setInterface(new String[] {
  60                     IStatisticsManager.class.getName(),
  61                     IReadServiceListener.class.getName(),
  62                     IListenInventoryUpdates.class.getName() }, null);
  63
  64             c.add(createContainerServiceDependency(containerName).setService(IReadService.class)
  65                     .setCallbacks("setReaderService", "unsetReaderService").setRequired(true));
  66             c.add(createContainerServiceDependency(containerName).setService(IClusterContainerServices.class)
  67                     .setCallbacks("setClusterContainerService", "unsetClusterContainerService").setRequired(true));
  68             c.add(createContainerServiceDependency(containerName).setService(IContainer.class)
  69                     .setCallbacks("setIContainer", "unsetIContainer").setRequired(true));
  70
  71         }
  72     }
  73 }