2 * Copyright (c) 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.yangtools.yang.parser.rfc7950.stmt.typedef;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.collect.ImmutableList;
13 import java.lang.invoke.MethodHandles;
14 import java.lang.invoke.MethodHandles.Lookup;
15 import java.lang.invoke.VarHandle;
16 import java.util.Collection;
18 import java.util.Optional;
19 import org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.yangtools.yang.common.QName;
21 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
22 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
23 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
24 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
25 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
26 import org.opendaylight.yangtools.yang.model.api.meta.StatementSource;
27 import org.opendaylight.yangtools.yang.model.api.stmt.DefaultEffectiveStatement;
28 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionEffectiveStatement;
29 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceEffectiveStatement;
30 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
31 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
32 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement;
33 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
34 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefStatement;
35 import org.opendaylight.yangtools.yang.model.api.stmt.UnitsEffectiveStatement;
36 import org.opendaylight.yangtools.yang.model.util.type.DerivedTypeBuilder;
37 import org.opendaylight.yangtools.yang.model.util.type.DerivedTypes;
38 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.AbstractDeclaredEffectiveStatement.Default;
39 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.SchemaNodeMixin;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
43 final class TypedefEffectiveStatementImpl extends Default<QName, TypedefStatement>
44 implements TypedefEffectiveStatement, SchemaNodeMixin<QName, TypedefStatement> {
45 private static final Logger LOG = LoggerFactory.getLogger(TypedefEffectiveStatementImpl.class);
47 private static final VarHandle TYPE_DEFINITION;
48 private static final VarHandle TYPE_STATEMENT;
51 final Lookup lookup = MethodHandles.lookup();
53 TYPE_DEFINITION = lookup.findVarHandle(TypedefEffectiveStatementImpl.class, "typeDefinition",
54 TypeDefinition.class);
55 TYPE_STATEMENT = lookup.findVarHandle(TypedefEffectiveStatementImpl.class, "typeStatement",
56 ProxyTypeEffectiveStatement.class);
57 } catch (NoSuchFieldException | IllegalAccessException e) {
58 throw new ExceptionInInitializerError(e);
62 private final @NonNull Object substatements;
63 private final @NonNull SchemaPath path;
64 private final int flags;
66 // Accessed via TYPE_DEFINITION
67 @SuppressWarnings("unused")
68 private volatile TypeDefinition<?> typeDefinition;
69 // Accessed via TYPE_STATEMENT
70 @SuppressWarnings("unused")
71 private volatile ProxyTypeEffectiveStatement typeStatement;
73 TypedefEffectiveStatementImpl(final TypedefStatement declared, final SchemaPath path, final int flags,
74 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
76 this.path = requireNonNull(path);
78 this.substatements = maskList(substatements);
88 public SchemaPath getPath() {
93 public @NonNull QName argument() {
98 public ImmutableList<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
99 return unmaskList(substatements);
103 public TypeDefinition<?> getTypeDefinition() {
104 final TypeDefinition<?> existing = (TypeDefinition<?>) TYPE_DEFINITION.getAcquire(this);
105 return existing != null ? existing : loadTypeDefinition();
109 public TypeEffectiveStatement<TypeStatement> asTypeEffectiveStatement() {
110 final ProxyTypeEffectiveStatement local = (ProxyTypeEffectiveStatement) TYPE_STATEMENT.getAcquire(this);
111 return local != null ? local : loadTypeStatement();
114 private @NonNull TypeDefinition<?> loadTypeDefinition() {
115 final TypeEffectiveStatement<?> type = findFirstEffectiveSubstatement(TypeEffectiveStatement.class).get();
116 final DerivedTypeBuilder<?> builder = DerivedTypes.derivedTypeBuilder(type.getTypeDefinition(), path);
118 for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
119 if (stmt instanceof DefaultEffectiveStatement) {
120 builder.setDefaultValue(((DefaultEffectiveStatement) stmt).argument());
121 } else if (stmt instanceof DescriptionEffectiveStatement) {
122 builder.setDescription(((DescriptionEffectiveStatement)stmt).argument());
123 } else if (stmt instanceof ReferenceEffectiveStatement) {
124 builder.setReference(((ReferenceEffectiveStatement)stmt).argument());
125 } else if (stmt instanceof StatusEffectiveStatement) {
126 builder.setStatus(((StatusEffectiveStatement)stmt).argument());
127 } else if (stmt instanceof UnitsEffectiveStatement) {
128 builder.setUnits(((UnitsEffectiveStatement)stmt).argument());
129 } else if (stmt instanceof UnknownSchemaNode) {
130 // FIXME: should not directly implement, I think
131 builder.addUnknownSchemaNode((UnknownSchemaNode)stmt);
132 } else if (!(stmt instanceof TypeEffectiveStatement)) {
133 LOG.debug("Ignoring statement {}", stmt);
137 final TypeDefinition<?> created = builder.build();
138 final Object witness = TYPE_DEFINITION.compareAndExchangeRelease(this, null, created);
139 return witness == null ? created : (TypeDefinition<?>) witness;
142 private @NonNull ProxyTypeEffectiveStatement loadTypeStatement() {
143 final ProxyTypeEffectiveStatement created = new ProxyTypeEffectiveStatement();
144 final Object witness = TYPE_STATEMENT.compareAndExchangeRelease(this, null, created);
145 return witness == null ? created : (ProxyTypeEffectiveStatement) witness;
148 private final class ProxyTypeEffectiveStatement implements TypeEffectiveStatement<TypeStatement> {
150 public TypeStatement getDeclared() {
155 public <K, V, N extends IdentifierNamespace<K, V>> Optional<? extends V> get(final Class<N> namespace,
156 final K identifier) {
157 return TypedefEffectiveStatementImpl.this.get(namespace, identifier);
161 public <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAll(final Class<N> namespace) {
162 return TypedefEffectiveStatementImpl.this.getAll(namespace);
166 public Collection<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
167 return TypedefEffectiveStatementImpl.this.effectiveSubstatements();
171 public String argument() {
172 return getQName().getLocalName();
176 public StatementSource getStatementSource() {
177 return StatementSource.CONTEXT;
181 public TypeDefinition<?> getTypeDefinition() {
182 return TypedefEffectiveStatementImpl.this.getTypeDefinition();