opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/config/yang/config/concurrent_data_broker/DomConcurrentDataBrokerModule.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.config.yang.config.concurrent_data_broker;
   9
  10 import org.opendaylight.controller.config.api.DependencyResolver;
  11 import org.opendaylight.controller.config.api.ModuleIdentifier;
  12 import org.opendaylight.controller.config.api.osgi.WaitingServiceTracker;
  13 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  14 import org.opendaylight.controller.md.sal.dom.spi.ForwardingDOMDataBroker;
  15 import org.osgi.framework.BundleContext;
  16
  17 public class DomConcurrentDataBrokerModule extends AbstractDomConcurrentDataBrokerModule {
  18     private BundleContext bundleContext;
  19
  20     public DomConcurrentDataBrokerModule(final ModuleIdentifier identifier,
  21             final DependencyResolver dependencyResolver) {
  22         super(identifier, dependencyResolver);
  23     }
  24
  25     public DomConcurrentDataBrokerModule(final ModuleIdentifier identifier,
  26             final DependencyResolver dependencyResolver, final DomConcurrentDataBrokerModule oldModule,
  27             final AutoCloseable oldInstance) {
  28         super(identifier, dependencyResolver, oldModule, oldInstance);
  29     }
  30
  31     @Override
  32     public boolean canReuseInstance(AbstractDomConcurrentDataBrokerModule oldModule) {
  33         return true;
  34     }
  35
  36     @Override
  37     public AutoCloseable createInstance() {
  38         // The ConcurrentDOMDataBroker is provided via blueprint so wait for and return it here for
  39         // backwards compatibility.
  40         WaitingServiceTracker<DOMDataBroker> tracker = WaitingServiceTracker.create(
  41                 DOMDataBroker.class, bundleContext, "(type=default)");
  42         DOMDataBroker delegate = tracker.waitForService(WaitingServiceTracker.FIVE_MINUTES);
  43         return new ForwardingConcurrentDOMBroker(delegate, tracker);
  44     }
  45
  46     public void setBundleContext(final BundleContext bundleContext) {
  47         this.bundleContext = bundleContext;
  48     }
  49
  50     private static class ForwardingConcurrentDOMBroker extends ForwardingDOMDataBroker implements AutoCloseable {
  51         private final DOMDataBroker delegate;
  52         private final AutoCloseable closeable;
  53
  54         ForwardingConcurrentDOMBroker(DOMDataBroker delegate, AutoCloseable closeable) {
  55             this.delegate = delegate;
  56             this.closeable = closeable;
  57         }
  58
  59         @Override
  60         protected DOMDataBroker delegate() {
  61             return delegate;
  62         }
  63
  64         @Override
  65         public void close() throws Exception {
  66             // We don't close the delegate as the life-cycle is controlled via blueprint.
  67             closeable.close();
  68         }
  69     }
  70 }