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