dom/mdsal-dom-inmemory-datastore/src/main/java/org/opendaylight/mdsal/dom/store/inmemory/InMemoryDOMDataTreeShardChangePublisher.java

   1 /*
   2  * Copyright (c) 2016 Cisco 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.mdsal.dom.store.inmemory;
   9
  10 import java.util.Collection;
  11 import java.util.Map;
  12 import java.util.concurrent.Executor;
  13 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  14 import org.opendaylight.mdsal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration;
  15 import org.opendaylight.mdsal.dom.spi.shard.ChildShardContext;
  16 import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  19 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 final class InMemoryDOMDataTreeShardChangePublisher extends AbstractDOMShardTreeChangePublisher {
  24
  25     private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMDataTreeShardChangePublisher.class);
  26
  27     private final QueuedNotificationManager<AbstractDOMDataTreeChangeListenerRegistration<?>, DataTreeCandidate>
  28         notificationManager;
  29
  30     InMemoryDOMDataTreeShardChangePublisher(final Executor executor,
  31                                             final int maxQueueSize,
  32                                             final DataTree dataTree,
  33                                             final YangInstanceIdentifier rootPath,
  34                                             final Map<DOMDataTreeIdentifier, ChildShardContext> childShards) {
  35         super(dataTree, rootPath, childShards);
  36         notificationManager = QueuedNotificationManager.create(executor, (listener, notifications) -> {
  37             // FIXME: we are not checking for listener being closed
  38             listener.getInstance().onDataTreeChanged(notifications);
  39         }, maxQueueSize, "DataTreeChangeListenerQueueMgr");
  40     }
  41
  42     @Override
  43     protected void notifyListener(final AbstractDOMDataTreeChangeListenerRegistration<?> registration,
  44             final Collection<DataTreeCandidate> changes) {
  45         LOG.debug("Enqueueing candidates {} for registration {}", changes, registration);
  46         notificationManager.submitNotifications(registration, changes);
  47     }
  48
  49     @Override
  50     protected void registrationRemoved(final AbstractDOMDataTreeChangeListenerRegistration<?> registration) {
  51         LOG.debug("Closing registration {}", registration);
  52
  53     }
  54
  55     synchronized void publishChange(final DataTreeCandidate candidate) {
  56         processCandidateTree(candidate);
  57     }
  58 }