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
9 package org.opendaylight.mdsal.dom.broker;
11 import static com.google.common.base.Preconditions.checkState;
12 import static java.util.Objects.requireNonNull;
14 import com.google.common.annotations.VisibleForTesting;
15 import com.google.common.collect.MutableClassToInstanceMap;
16 import java.util.HashMap;
18 import java.util.Optional;
19 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
20 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
21 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
22 import org.opendaylight.mdsal.dom.api.DOMService;
23 import org.opendaylight.mdsal.dom.spi.SimpleDOMMountPoint;
24 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
26 import org.opendaylight.yangtools.concepts.ObjectRegistration;
27 import org.opendaylight.yangtools.util.ListenerRegistry;
28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
29 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
33 public class DOMMountPointServiceImpl implements DOMMountPointService {
34 private static final Logger LOG = LoggerFactory.getLogger(DOMMountPointServiceImpl.class);
36 private final Map<YangInstanceIdentifier, DOMMountPoint> mountPoints = new HashMap<>();
38 private final ListenerRegistry<DOMMountPointListener> listeners = ListenerRegistry.create();
41 public Optional<DOMMountPoint> getMountPoint(final YangInstanceIdentifier path) {
42 return Optional.ofNullable(mountPoints.get(path));
46 public DOMMountPointBuilder createMountPoint(final YangInstanceIdentifier path) {
47 checkState(!mountPoints.containsKey(path), "Mount point already exists");
48 return new DOMMountPointBuilderImpl(path);
52 public ListenerRegistration<DOMMountPointListener> registerProvisionListener(final DOMMountPointListener listener) {
53 return listeners.register(listener);
56 public ObjectRegistration<DOMMountPoint> registerMountPoint(final DOMMountPoint mountPoint) {
57 final YangInstanceIdentifier mountPointId = mountPoint.getIdentifier();
58 synchronized (mountPoints) {
59 final DOMMountPoint prev = mountPoints.putIfAbsent(mountPointId, mountPoint);
60 checkState(prev == null, "Mount point %s already exists as %s", mountPointId, prev);
62 listeners.forEach(listener -> listener.getInstance().onMountPointCreated(mountPointId));
64 return new AbstractObjectRegistration<DOMMountPoint>(mountPoint) {
66 protected void removeRegistration() {
67 unregisterMountPoint(getInstance().getIdentifier());
72 public void unregisterMountPoint(final YangInstanceIdentifier mountPointId) {
73 synchronized (mountPoints) {
74 if (mountPoints.remove(mountPointId) == null) {
75 LOG.warn("Removed non-existend mount point {} at", mountPointId, new Throwable());
80 listeners.forEach(listener -> listener.getInstance().onMountPointRemoved(mountPointId));
83 final class DOMMountPointBuilderImpl implements DOMMountPointBuilder {
85 private final MutableClassToInstanceMap<DOMService> services = MutableClassToInstanceMap.create();
86 private final YangInstanceIdentifier path;
87 private SchemaContext schemaContext;
89 private SimpleDOMMountPoint mountPoint;
91 DOMMountPointBuilderImpl(final YangInstanceIdentifier path) {
92 this.path = requireNonNull(path);
96 SchemaContext getSchemaContext() {
101 Map<Class<? extends DOMService>, DOMService> getServices() {
106 public <T extends DOMService> DOMMountPointBuilder addService(final Class<T> type, final T impl) {
107 services.putInstance(requireNonNull(type), requireNonNull(impl));
112 public DOMMountPointBuilder addInitialSchemaContext(final SchemaContext ctx) {
113 schemaContext = requireNonNull(ctx);
118 public ObjectRegistration<DOMMountPoint> register() {
119 checkState(mountPoint == null, "Mount point is already built.");
120 mountPoint = SimpleDOMMountPoint.create(path, services,schemaContext);
121 return registerMountPoint(mountPoint);