binding/mdsal-binding-dom-codec-osgi/src/main/java/org/opendaylight/mdsal/binding/dom/codec/osgi/impl/SimpleBindingRuntimeContextService.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 static com.google.common.base.Preconditions.checkState;
  11 import static com.google.common.base.Verify.verifyNotNull;
  12 import static java.util.Objects.requireNonNull;
  13
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import org.checkerframework.checker.lock.qual.GuardedBy;
  16 import org.opendaylight.mdsal.binding.dom.codec.osgi.BindingRuntimeContextListener;
  17 import org.opendaylight.mdsal.binding.dom.codec.osgi.BindingRuntimeContextService;
  18 import org.opendaylight.mdsal.binding.generator.api.ClassLoadingStrategy;
  19 import org.opendaylight.mdsal.binding.generator.util.BindingRuntimeContext;
  20 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  21 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  22 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  23 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider;
  24 import org.osgi.framework.BundleContext;
  25 import org.osgi.framework.ServiceReference;
  26 import org.osgi.util.tracker.ServiceTracker;
  27
  28 @Deprecated
  29 final class SimpleBindingRuntimeContextService extends
  30         ServiceTracker<BindingRuntimeContextListener, BindingRuntimeContextListener>
  31         implements BindingRuntimeContextService {
  32     private final SchemaSourceProvider<YangTextSchemaSource> sourceProvider;
  33     private final ClassLoadingStrategy strategy;
  34     private final Object lock = new Object();
  35
  36     @GuardedBy("lock")
  37     private BindingRuntimeContext current;
  38
  39     SimpleBindingRuntimeContextService(final BundleContext context, final ClassLoadingStrategy strategy,
  40         final SchemaSourceProvider<YangTextSchemaSource> sourceProvider) {
  41         super(context, BindingRuntimeContextListener.class, null);
  42         this.sourceProvider = requireNonNull(sourceProvider);
  43         this.strategy = requireNonNull(strategy);
  44     }
  45
  46     @Override
  47     public ListenableFuture<? extends YangTextSchemaSource> getSource(final SourceIdentifier sourceIdentifier) {
  48         return sourceProvider.getSource(sourceIdentifier);
  49     }
  50
  51     @Override
  52     public BindingRuntimeContext getBindingRuntimeContext() {
  53         synchronized (lock) {
  54             checkState(current != null, "Runtime context is not initialized yet");
  55             return current;
  56         }
  57     }
  58
  59     void updateBindingRuntimeContext(final SchemaContext schemaContext) {
  60         final BindingRuntimeContext next = verifyNotNull(BindingRuntimeContext.create(strategy, schemaContext));
  61
  62         final BindingRuntimeContextListener[] listeners;
  63         synchronized (lock) {
  64             current = next;
  65             listeners = this.getServices(new BindingRuntimeContextListener[0]);
  66         }
  67
  68         for (BindingRuntimeContextListener l : listeners) {
  69             l.onBindingRuntimeContextUpdated(next);
  70         }
  71     }
  72
  73     @Override
  74     public BindingRuntimeContextListener addingService(
  75             final ServiceReference<BindingRuntimeContextListener> reference) {
  76         final BindingRuntimeContextListener listener = super.addingService(reference);
  77
  78         synchronized (lock) {
  79             listener.onBindingRuntimeContextUpdated(current);
  80         }
  81
  82         return listener;
  83     }
  84 }