2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.controller.md.sal.dom.store.impl;
10 import java.util.Collection;
11 import java.util.Collections;
12 import java.util.concurrent.ExecutorService;
13 import javax.annotation.Nonnull;
14 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
15 import org.opendaylight.controller.md.sal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration;
16 import org.opendaylight.controller.sal.core.spi.data.AbstractDOMStoreTreeChangePublisher;
17 import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager;
18 import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager.Invoker;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
20 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
21 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
25 final class InMemoryDOMStoreTreeChangePublisher extends AbstractDOMStoreTreeChangePublisher {
26 private static final Invoker<AbstractDOMDataTreeChangeListenerRegistration<?>, DataTreeCandidate> MANAGER_INVOKER =
27 new Invoker<AbstractDOMDataTreeChangeListenerRegistration<?>, DataTreeCandidate>() {
29 public void invokeListener(final AbstractDOMDataTreeChangeListenerRegistration<?> listener, final DataTreeCandidate notification) {
30 // FIXME: this is inefficient, as we could grab the entire queue for the listener and post it
31 final DOMDataTreeChangeListener inst = listener.getInstance();
33 inst.onDataTreeChanged(Collections.singletonList(notification));
37 private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMStoreTreeChangePublisher.class);
38 private final QueuedNotificationManager<AbstractDOMDataTreeChangeListenerRegistration<?>, DataTreeCandidate> notificationManager;
40 InMemoryDOMStoreTreeChangePublisher(final ExecutorService listenerExecutor, final int maxQueueSize) {
41 notificationManager = new QueuedNotificationManager<>(listenerExecutor, MANAGER_INVOKER, maxQueueSize, "DataTreeChangeListenerQueueMgr");
45 protected void notifyListeners(final Collection<AbstractDOMDataTreeChangeListenerRegistration<?>> registrations, final YangInstanceIdentifier path, final DataTreeCandidateNode node) {
46 final DataTreeCandidate candidate = new SimpleDataTreeCandidate(path, node);
48 for (AbstractDOMDataTreeChangeListenerRegistration<?> reg : registrations) {
49 LOG.debug("Enqueueing candidate {} to registration {}", candidate, registrations);
50 notificationManager.submitNotification(reg, candidate);
55 protected synchronized void registrationRemoved(final AbstractDOMDataTreeChangeListenerRegistration<?> registration) {
56 LOG.debug("Closing registration {}", registration);
58 // FIXME: remove the queue for this registration and make sure we clear it
61 synchronized void publishChange(@Nonnull final DataTreeCandidate candidate) {
62 // Runs synchronized with registrationRemoved()
63 processCandidateTree(candidate);