Rename DOMDataTreeChangeService
[mdsal.git] / dom / mdsal-dom-spi / src / main / java / org / opendaylight / mdsal / dom / spi / SimpleDOMMountPoint.java
1 /*
2  * Copyright (c) 2014, 2015 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.spi;
9
10 import static java.util.Objects.requireNonNull;
11
12 import com.google.common.collect.ClassToInstanceMap;
13 import com.google.common.collect.ImmutableClassToInstanceMap;
14 import java.util.Optional;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
17 import org.opendaylight.mdsal.dom.api.DOMService;
18 import org.opendaylight.mdsal.dom.api.DOMService.Extension;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
20
21 public final class SimpleDOMMountPoint implements DOMMountPoint {
22     private final ImmutableClassToInstanceMap<DOMService<?, ?>> services;
23     private final @NonNull YangInstanceIdentifier identifier;
24
25     private SimpleDOMMountPoint(final YangInstanceIdentifier identifier,
26             final ClassToInstanceMap<DOMService<?, ?>> services) {
27         this.identifier =  requireNonNull(identifier);
28         this.services = ImmutableClassToInstanceMap.copyOf(services);
29     }
30
31     public static SimpleDOMMountPoint create(final YangInstanceIdentifier identifier,
32             final ClassToInstanceMap<DOMService<?, ?>> services) {
33         return new SimpleDOMMountPoint(identifier, services);
34     }
35
36     @Override
37     public YangInstanceIdentifier getIdentifier() {
38         return identifier;
39     }
40
41     @Override
42     public <T extends DOMService<T, E>, E extends Extension<T, E>> Optional<T> getService(final Class<T> cls) {
43         return Optional.ofNullable(services.getInstance(cls));
44     }
45 }