2 * Copyright (c) 2014, 2015 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.cluster.datastore.node.utils;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.cache.CacheBuilder;
13 import com.google.common.cache.CacheLoader;
14 import com.google.common.cache.LoadingCache;
16 import java.util.Objects;
17 import java.util.concurrent.ExecutionException;
18 import org.eclipse.jdt.annotation.NonNull;
19 import org.eclipse.jdt.annotation.Nullable;
20 import org.opendaylight.yangtools.concepts.Immutable;
21 import org.opendaylight.yangtools.yang.common.QName;
22 import org.opendaylight.yangtools.yang.common.QNameModule;
23 import org.opendaylight.yangtools.yang.common.Revision;
24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
26 @Deprecated(forRemoval = true)
27 public final class QNameFactory {
28 private static final class StringQName implements Immutable {
29 private final @NonNull String localName;
30 private final @NonNull String namespace;
31 private final @Nullable String revision;
33 StringQName(final String localName, final String namespace, final String revision) {
34 this.localName = requireNonNull(localName);
35 this.namespace = requireNonNull(namespace);
36 this.revision = revision;
40 public int hashCode() {
41 return Objects.hash(localName, namespace, revision);
45 public boolean equals(final Object obj) {
49 if (!(obj instanceof StringQName)) {
52 final StringQName other = (StringQName) obj;
53 return localName.equals(other.localName) && namespace.equals(other.namespace)
54 && Objects.equals(revision, other.revision);
58 return revision != null ? QName.create(namespace, revision, localName) : QName.create(namespace, localName);
62 private static final class ModuleQName implements Immutable {
63 private final @NonNull QNameModule module;
64 private final @NonNull String localName;
66 ModuleQName(final QNameModule module, final String localName) {
67 this.module = requireNonNull(module);
68 this.localName = requireNonNull(localName);
72 public int hashCode() {
73 return 31 * module.hashCode() + localName.hashCode();
77 public boolean equals(final Object obj) {
81 if (!(obj instanceof ModuleQName)) {
84 final ModuleQName other = (ModuleQName) obj;
85 return localName.equals(other.localName) && module.equals(other.module);
89 return QName.create(module, localName);
93 private static final class StringModule implements Immutable {
94 private final @NonNull String namespace;
95 private final @Nullable String revision;
97 StringModule(final String namespace, final String revision) {
98 this.namespace = requireNonNull(namespace);
99 this.revision = revision;
103 public int hashCode() {
104 return 31 * namespace.hashCode() + Objects.hashCode(revision);
108 public boolean equals(final Object obj) {
112 if (!(obj instanceof StringModule)) {
115 final StringModule other = (StringModule) obj;
116 return namespace.equals(other.namespace) && Objects.equals(revision, other.revision);
119 QNameModule toQNameModule() {
120 return QNameModule.create(URI.create(namespace), Revision.ofNullable(revision));
124 private static final int MAX_QNAME_CACHE_SIZE = Integer.getInteger(
125 "org.opendaylight.controller.cluster.datastore.node.utils.qname-cache.max-size", 10000);
126 private static final int MAX_MODULE_CACHE_SIZE = Integer.getInteger(
127 "org.opendaylight.controller.cluster.datastore.node.utils.module-cache.max-size", 2000);
129 private static final LoadingCache<String, QName> LEGACY_CACHE = CacheBuilder.newBuilder()
130 .maximumSize(MAX_QNAME_CACHE_SIZE).weakValues().build(new CacheLoader<String, QName>() {
132 public QName load(final String key) {
133 return QName.create(key).intern();
136 private static final LoadingCache<StringQName, QName> STRING_CACHE = CacheBuilder.newBuilder()
137 .maximumSize(MAX_QNAME_CACHE_SIZE).weakValues().build(new CacheLoader<StringQName, QName>() {
139 public QName load(final StringQName key) {
140 return key.toQName().intern();
143 private static final LoadingCache<ModuleQName, QName> QNAME_CACHE = CacheBuilder.newBuilder()
144 .maximumSize(MAX_QNAME_CACHE_SIZE).weakValues().build(new CacheLoader<ModuleQName, QName>() {
146 public QName load(final ModuleQName key) {
147 return key.toQName().intern();
150 private static final LoadingCache<StringModule, QNameModule> MODULE_CACHE = CacheBuilder.newBuilder()
151 .maximumSize(MAX_MODULE_CACHE_SIZE).weakValues().build(new CacheLoader<StringModule, QNameModule>() {
153 public QNameModule load(final StringModule key) {
154 return key.toQNameModule().intern();
157 private static final LoadingCache<ModuleQName, NodeIdentifier> NODEID_CACHE = CacheBuilder.newBuilder()
158 .maximumSize(MAX_QNAME_CACHE_SIZE).weakValues().build(new CacheLoader<ModuleQName, NodeIdentifier>() {
160 public NodeIdentifier load(final ModuleQName key) throws ExecutionException {
161 return NodeIdentifier.create(QNAME_CACHE.get(key));
165 private QNameFactory() {
170 public static QName create(final String name) {
171 return LEGACY_CACHE.getUnchecked(name);
174 public static QName create(final String localName, final String namespace, final @Nullable String revision) {
175 return STRING_CACHE.getUnchecked(new StringQName(localName, namespace, revision));
178 public static QName create(final QNameModule module, final String localName) {
179 return QNAME_CACHE.getUnchecked(new ModuleQName(module, localName));
182 public static QNameModule createModule(final String namespace, final @Nullable String revision) {
183 return MODULE_CACHE.getUnchecked(new StringModule(namespace, revision));
186 public static @NonNull NodeIdentifier getNodeIdentifier(final QNameModule module, final String localName)
187 throws ExecutionException {
188 return NODEID_CACHE.get(new ModuleQName(module, localName));