opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/osgi/ProxyFactory.java

   1 /*
   2  * Copyright (c) 2014 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 package org.opendaylight.controller.sal.dom.broker.osgi;
   9
  10 import java.util.Arrays;
  11 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  12 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  13 import org.opendaylight.controller.sal.core.api.BrokerService;
  14 import org.opendaylight.controller.sal.core.api.model.SchemaService;
  15 import org.osgi.framework.ServiceReference;
  16
  17 @SuppressWarnings("unchecked")
  18 public final class ProxyFactory {
  19
  20     private ProxyFactory() {
  21     }
  22
  23     public static <T extends BrokerService> T createProxy(final ServiceReference<T> serviceRef, final T service) {
  24
  25         Object createProxyImpl = ProxyFactory.createProxyImpl(serviceRef, service);
  26         return ((T) createProxyImpl);
  27     }
  28
  29     private static Object createProxyImpl(final ServiceReference<?> ref, final DOMMountPointService service) {
  30
  31         return new DOMMountPointServiceProxy(((ServiceReference<DOMMountPointService>) ref), service);
  32     }
  33
  34     private static Object createProxyImpl(final ServiceReference<?> ref, final SchemaService service) {
  35
  36         return new SchemaServiceProxy(((ServiceReference<SchemaService>) ref), service);
  37     }
  38
  39     private static DOMDataBrokerProxy createProxyImpl(final ServiceReference<?> ref, final DOMDataBroker service) {
  40
  41         return new DOMDataBrokerProxy(((ServiceReference<DOMDataBroker>) ref), service);
  42     }
  43
  44     private static Object createProxyImpl(final ServiceReference<?> ref, final BrokerService service) {
  45
  46         if (service instanceof DOMDataBroker) {
  47             return createProxyImpl(ref, (DOMDataBroker) service);
  48         } else if (service instanceof SchemaService) {
  49             return createProxyImpl(ref, (SchemaService) service);
  50         } else if (service instanceof DOMMountPointService) {
  51             return createProxyImpl(ref, (DOMMountPointService) service);
  52         } else if (service != null) {
  53             return createProxyImplFallback(ref, service);
  54         } else {
  55             throw new IllegalArgumentException(
  56                     "Unhandled parameter types: " + Arrays.<Object>asList(ref, service).toString());
  57         }
  58     }
  59
  60     private static Object createProxyImplFallback(final ServiceReference<?> reference, final BrokerService service) {
  61
  62         return service;
  63     }
  64 }