dom/mdsal-dom-schema-osgi/src/main/java/org/opendaylight/mdsal/dom/schema/osgi/impl/EffectiveModelContextImpl.java

   1 /*
   2  * Copyright (c) 2020 PANTHEON.tech, 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.dom.schema.osgi.impl;
   9
  10 import static com.google.common.base.Verify.verifyNotNull;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import com.google.common.annotations.VisibleForTesting;
  14 import java.util.Dictionary;
  15 import java.util.Hashtable;
  16 import java.util.Map;
  17 import org.gaul.modernizer_maven_annotations.SuppressModernizer;
  18 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  19 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextListener;
  20 import org.osgi.service.component.annotations.Activate;
  21 import org.osgi.service.component.annotations.Component;
  22 import org.osgi.service.component.annotations.Deactivate;
  23
  24 /**
  25  * A Factory Component which implements {@link EffectiveModelContextListener}. Instances of this component are created
  26  * through by {@link OSGiDOMSchemaService} each time a listener is registered.
  27  */
  28 @Component(factory = EffectiveModelContextImpl.FACTORY_NAME, service = EffectiveModelContextListener.class)
  29 public final class EffectiveModelContextImpl implements EffectiveModelContextListener {
  30     static final String FACTORY_NAME = "org.opendaylight.mdsal.dom.schema.osgi.impl.SchemaSchemaContextListener";
  31
  32     @VisibleForTesting
  33     static final String DELEGATE = "org.opendaylight.mdsal.dom.schema.osgi.SchemaSchemaContextListener";
  34
  35     private EffectiveModelContextListener delegate = null;
  36
  37     @Override
  38     public void onModelContextUpdated(final EffectiveModelContext newModelContext) {
  39         delegate.onModelContextUpdated(newModelContext);
  40     }
  41
  42     @Activate
  43     void activate(final Map<String, ?> properties) {
  44         delegate = (EffectiveModelContextListener) verifyNotNull(properties.get(DELEGATE));
  45     }
  46
  47     @Deactivate
  48     void deactivate() {
  49         delegate = null;
  50     }
  51
  52     @SuppressModernizer
  53     static Dictionary<String, ?> props(final EffectiveModelContextListener delegate) {
  54         final Dictionary<String, Object> ret = new Hashtable<>(2);
  55         ret.put(DELEGATE, requireNonNull(delegate));
  56         return ret;
  57     }
  58 }