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.ArrayList;
  11 import java.util.List;
  12 import org.opendaylight.mdsal.binding.dom.codec.osgi.BindingRuntimeContextService;
  13 import org.opendaylight.mdsal.binding.generator.api.ClassLoadingStrategy;
  14 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
  15 import org.osgi.framework.BundleActivator;
  16 import org.osgi.framework.BundleContext;
  17 import org.osgi.framework.ServiceRegistration;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public final class Activator implements BundleActivator {
  22     private static final Logger LOG = LoggerFactory.getLogger(Activator.class);
  23
  24     private final List<ServiceRegistration<?>> registrations = new ArrayList<>(2);
  25
  26     private ModuleInfoBundleTracker bundleTracker = null;
  27     private SimpleBindingRuntimeContextService service = null;
  28
  29     @Override
  30     public void start(final BundleContext context) {
  31         LOG.info("Binding-DOM codec starting");
  32
  33         // XXX: this will use thread-context class loader, which is probably appropriate
  34         final ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();
  35
  36         service = new SimpleBindingRuntimeContextService(context, moduleInfoBackedContext, moduleInfoBackedContext);
  37
  38         final OsgiModuleInfoRegistry registry = new OsgiModuleInfoRegistry(moduleInfoBackedContext,
  39                 moduleInfoBackedContext, service);
  40
  41         LOG.debug("Starting Binding-DOM codec bundle tracker");
  42         bundleTracker = new ModuleInfoBundleTracker(context, registry);
  43         bundleTracker.open();
  44
  45         LOG.debug("Starting Binding-DOM runtime context service");
  46         service.open();
  47
  48         LOG.debug("Registering Binding-DOM codec services");
  49         registrations.add(context.registerService(BindingRuntimeContextService.class, service, null));
  50         registrations.add(context.registerService(ClassLoadingStrategy.class, moduleInfoBackedContext, null));
  51
  52         LOG.info("Binding-DOM codec started");
  53     }
  54
  55     @Override
  56     public void stop(final BundleContext context) {
  57         LOG.info("Binding-DOM codec stopping");
  58
  59         LOG.debug("Unregistering Binding-DOM codec services");
  60         registrations.forEach(ServiceRegistration::unregister);
  61         registrations.clear();
  62
  63         LOG.debug("Stopping Binding-DOM codec bundle tracker");
  64         bundleTracker.close();
  65
  66         LOG.debug("Stoping Binding-DOM runtime context service");
  67         service.close();
  68
  69         LOG.info("Binding-DOM codec stopped");
  70     }
  71 }