opendaylight/md-sal/sal-dom-config/src/main/java/org/opendaylight/yang/gen/v1/urn/opendaylight/params/xml/ns/yang/md/sal/config/impl/cluster/singleton/service/rev160718/ClusterSingletonServiceProviderModule.java

   1 /*
   2  * Copyright (c) 2016 Brocade Communications 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.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.md.sal.config.impl.cluster.singleton.service.rev160718;
   9
  10 import com.google.common.reflect.AbstractInvocationHandler;
  11 import com.google.common.reflect.Reflection;
  12 import java.lang.reflect.Method;
  13 import org.opendaylight.controller.config.api.DependencyResolver;
  14 import org.opendaylight.controller.config.api.ModuleIdentifier;
  15 import org.opendaylight.controller.config.api.osgi.WaitingServiceTracker;
  16 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  17 import org.osgi.framework.BundleContext;
  18
  19 /**
  20  * @deprecated Replaced by blueprint wiring but remains for backwards compatibility until downstream users
  21  *             of the provided config system service are converted to blueprint.
  22  */
  23 @Deprecated
  24 public class ClusterSingletonServiceProviderModule extends AbstractClusterSingletonServiceProviderModule {
  25     private BundleContext bundleContext;
  26
  27     public ClusterSingletonServiceProviderModule(final ModuleIdentifier identifier, final DependencyResolver dependencyResolver) {
  28         super(identifier, dependencyResolver);
  29     }
  30
  31     public ClusterSingletonServiceProviderModule(final ModuleIdentifier identifier, final DependencyResolver dependencyResolver,
  32             final ClusterSingletonServiceProviderModule oldModule, final java.lang.AutoCloseable oldInstance) {
  33         super(identifier, dependencyResolver, oldModule, oldInstance);
  34     }
  35
  36
  37     @Override
  38     public AutoCloseable createInstance() {
  39         final WaitingServiceTracker<ClusterSingletonServiceProvider> tracker = WaitingServiceTracker
  40                 .create(ClusterSingletonServiceProvider.class, bundleContext);
  41         final ClusterSingletonServiceProvider service = tracker.waitForService(WaitingServiceTracker.FIVE_MINUTES);
  42
  43         // Create a proxy to override close to close the ServiceTracker. The actual DOMClusterSingletonServiceProvider
  44         // instance will be closed via blueprint.
  45         return Reflection.newProxy(AutoCloseableDOMClusterSingletonServiceProvider.class,
  46                 new AbstractInvocationHandler() {
  47                     @Override
  48                     protected Object handleInvocation(final Object proxy, final Method method, final Object[] args)
  49                             throws Throwable {
  50                         if (method.getName().equals("close")) {
  51                             tracker.close();
  52                             return null;
  53                         } else {
  54                             return method.invoke(service, args);
  55                         }
  56                     }
  57                 });
  58     }
  59
  60     void setBundleContext(final BundleContext bundleContext) {
  61         this.bundleContext = bundleContext;
  62     }
  63
  64     private static interface AutoCloseableDOMClusterSingletonServiceProvider
  65             extends ClusterSingletonServiceProvider, AutoCloseable {
  66     }
  67 }