binding/mdsal-binding-dom-codec-osgi/src/main/java/org/opendaylight/mdsal/binding/dom/codec/osgi/impl/Activator.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.mdsal.binding.dom.codec.osgi.impl;
   9
  10 import java.util.Collection;
  11 import org.opendaylight.mdsal.binding.dom.codec.osgi.BindingRuntimeContextService;
  12 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
  13 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  14 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  15 import org.osgi.framework.Bundle;
  16 import org.osgi.framework.BundleActivator;
  17 import org.osgi.framework.BundleContext;
  18 import org.osgi.framework.ServiceRegistration;
  19 import org.osgi.util.tracker.BundleTracker;
  20
  21 public final class Activator implements BundleActivator {
  22     private BundleTracker<Collection<ObjectRegistration<YangModuleInfo>>> moduleInfoResolvedBundleTracker;
  23     private SimpleBindingRuntimeContextService service;
  24     private ServiceRegistration<?> registration;
  25
  26     @Override
  27     public void start(final BundleContext context) {
  28         // XXX: this will use thread-context class loader, which is probably appropriate
  29         final ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();
  30
  31         service = new SimpleBindingRuntimeContextService(context, moduleInfoBackedContext, moduleInfoBackedContext);
  32
  33         final OsgiModuleInfoRegistry registry = new OsgiModuleInfoRegistry(moduleInfoBackedContext,
  34             moduleInfoBackedContext, service);
  35
  36         final ModuleInfoBundleTracker moduleInfoTracker = new ModuleInfoBundleTracker(registry);
  37         moduleInfoResolvedBundleTracker = new BundleTracker<>(context, Bundle.RESOLVED | Bundle.STARTING
  38                 | Bundle.STOPPING | Bundle.ACTIVE, moduleInfoTracker);
  39         moduleInfoResolvedBundleTracker.open();
  40         moduleInfoTracker.finishStart();
  41
  42         service.open();
  43         registration = context.registerService(BindingRuntimeContextService.class, service, null);
  44     }
  45
  46     @Override
  47     public void stop(final BundleContext context) {
  48         moduleInfoResolvedBundleTracker.close();
  49         service.close();
  50         registration.unregister();
  51     }
  52 }