yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/typedef/TypedefEffectiveStatementImpl.java

   1 /*
   2  * Copyright (c) 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.yangtools.yang.parser.rfc7950.stmt.typedef;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ImmutableList;
  13 import java.util.Collection;
  14 import java.util.Map;
  15 import java.util.Optional;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.yangtools.yang.common.QName;
  18 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  19 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  20 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
  21 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
  23 import org.opendaylight.yangtools.yang.model.api.meta.StatementSource;
  24 import org.opendaylight.yangtools.yang.model.api.stmt.DefaultEffectiveStatement;
  25 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionEffectiveStatement;
  26 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceEffectiveStatement;
  27 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
  28 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  29 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement;
  30 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
  31 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefStatement;
  32 import org.opendaylight.yangtools.yang.model.api.stmt.UnitsEffectiveStatement;
  33 import org.opendaylight.yangtools.yang.model.util.type.DerivedTypeBuilder;
  34 import org.opendaylight.yangtools.yang.model.util.type.DerivedTypes;
  35 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.AbstractDeclaredEffectiveStatement.Default;
  36 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.SchemaNodeMixin;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 final class TypedefEffectiveStatementImpl extends Default<QName, TypedefStatement>
  41         implements TypedefEffectiveStatement, SchemaNodeMixin<QName, TypedefStatement> {
  42     private static final Logger LOG = LoggerFactory.getLogger(TypedefEffectiveStatementImpl.class);
  43
  44     private final @NonNull Object substatements;
  45     private final @NonNull SchemaPath path;
  46     private final int flags;
  47
  48     private volatile TypeDefinition<?> typeDefinition;
  49     private volatile TypeEffectiveStatement<TypeStatement> typeStatement;
  50
  51     TypedefEffectiveStatementImpl(final TypedefStatement declared, final SchemaPath path, final int flags,
  52             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  53         super(declared);
  54         this.path = requireNonNull(path);
  55         this.flags = flags;
  56         this.substatements = maskList(substatements);
  57     }
  58
  59     @Override
  60     public int flags() {
  61         return flags;
  62     }
  63
  64     @Override
  65     public SchemaPath getPath() {
  66         return path;
  67     }
  68
  69     @Override
  70     public @NonNull QName argument() {
  71         return getQName();
  72     }
  73
  74     @Override
  75     public ImmutableList<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
  76         return unmaskList(substatements);
  77     }
  78
  79     @Override
  80     public TypeDefinition<?> getTypeDefinition() {
  81         final TypeDefinition<?> existing = typeDefinition;
  82         return existing != null ? existing : loadTypeDefinition();
  83     }
  84
  85     @Override
  86     public TypeEffectiveStatement<TypeStatement> asTypeEffectiveStatement() {
  87         final TypeEffectiveStatement<TypeStatement> local = typeStatement;
  88         return local != null ? local : loadTypeStatement();
  89     }
  90
  91     private synchronized @NonNull TypeDefinition<?> loadTypeDefinition() {
  92         final TypeDefinition<?> existing = typeDefinition;
  93         if (existing != null) {
  94             return existing;
  95         }
  96
  97         final TypeEffectiveStatement<?> type = findFirstEffectiveSubstatement(TypeEffectiveStatement.class).get();
  98         final DerivedTypeBuilder<?> builder = DerivedTypes.derivedTypeBuilder(type.getTypeDefinition(), path);
  99
 100         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
 101             if (stmt instanceof DefaultEffectiveStatement) {
 102                 builder.setDefaultValue(((DefaultEffectiveStatement) stmt).argument());
 103             } else if (stmt instanceof DescriptionEffectiveStatement) {
 104                 builder.setDescription(((DescriptionEffectiveStatement)stmt).argument());
 105             } else if (stmt instanceof ReferenceEffectiveStatement) {
 106                 builder.setReference(((ReferenceEffectiveStatement)stmt).argument());
 107             } else if (stmt instanceof StatusEffectiveStatement) {
 108                 builder.setStatus(((StatusEffectiveStatement)stmt).argument());
 109             } else if (stmt instanceof UnitsEffectiveStatement) {
 110                 builder.setUnits(((UnitsEffectiveStatement)stmt).argument());
 111             } else if (stmt instanceof UnknownSchemaNode) {
 112                 // FIXME: should not directly implement, I think
 113                 builder.addUnknownSchemaNode((UnknownSchemaNode)stmt);
 114             } else if (!(stmt instanceof TypeEffectiveStatement)) {
 115                 LOG.debug("Ignoring statement {}", stmt);
 116             }
 117         }
 118
 119         final TypeDefinition<?> ret = builder.build();
 120         typeDefinition = ret;
 121         return ret;
 122     }
 123
 124     private synchronized @NonNull TypeEffectiveStatement<TypeStatement> loadTypeStatement() {
 125         TypeEffectiveStatement<TypeStatement> ret = typeStatement;
 126         if (ret == null) {
 127             typeStatement = ret = new ProxyTypeEffectiveStatement();
 128         }
 129         return ret;
 130     }
 131
 132     private final class ProxyTypeEffectiveStatement implements TypeEffectiveStatement<TypeStatement> {
 133         @Override
 134         public TypeStatement getDeclared() {
 135             return null;
 136         }
 137
 138         @Override
 139         public <K, V, N extends IdentifierNamespace<K, V>> Optional<? extends V> get(final Class<N> namespace,
 140                 final K identifier) {
 141             return TypedefEffectiveStatementImpl.this.get(namespace, identifier);
 142         }
 143
 144         @Override
 145         public <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAll(final Class<N> namespace) {
 146             return TypedefEffectiveStatementImpl.this.getAll(namespace);
 147         }
 148
 149         @Override
 150         public Collection<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
 151             return TypedefEffectiveStatementImpl.this.effectiveSubstatements();
 152         }
 153
 154         @Override
 155         public String argument() {
 156             return getQName().getLocalName();
 157         }
 158
 159         @Override
 160         public StatementSource getStatementSource() {
 161             return StatementSource.CONTEXT;
 162         }
 163
 164         @Override
 165         public TypeDefinition<?> getTypeDefinition() {
 166             return TypedefEffectiveStatementImpl.this.getTypeDefinition();
 167         }
 168     }
 169 }