2 * Copyright (c) 2017 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.type;
10 import com.google.common.annotations.Beta;
11 import com.google.common.collect.ImmutableMap;
12 import java.util.Optional;
13 import org.opendaylight.yangtools.yang.common.Uint32;
14 import org.opendaylight.yangtools.yang.model.api.stmt.BitEffectiveStatement;
15 import org.opendaylight.yangtools.yang.model.api.stmt.EnumEffectiveStatement;
16 import org.opendaylight.yangtools.yang.model.api.stmt.ValueEffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
18 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
19 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
20 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition.EnumPair;
21 import org.opendaylight.yangtools.yang.model.api.type.TypeDefinitions;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
24 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
27 * Class providing necessary support for processing YANG 1.1 Type statement.
30 public final class TypeStatementRFC7950Support extends AbstractTypeStatementSupport {
31 private static final ImmutableMap<String, StatementSupport<?, ?, ?>> ARGUMENT_SPECIFIC_SUPPORTS = ImmutableMap.of(
32 TypeDefinitions.LEAFREF.getLocalName(), new LeafrefSpecificationRFC7950Support(),
33 TypeDefinitions.IDENTITYREF.getLocalName(), new IdentityRefSpecificationRFC7950Support());
34 private static final TypeStatementRFC7950Support INSTANCE = new TypeStatementRFC7950Support();
36 private TypeStatementRFC7950Support() {
40 public static TypeStatementRFC7950Support getInstance() {
45 public boolean hasArgumentSpecificSupports() {
46 return !ARGUMENT_SPECIFIC_SUPPORTS.isEmpty() || super.hasArgumentSpecificSupports();
50 public StatementSupport<?, ?, ?> getSupportSpecificForArgument(final String argument) {
51 final StatementSupport<?, ?, ?> potential = ARGUMENT_SPECIFIC_SUPPORTS.get(argument);
52 return potential != null ? potential : super.getSupportSpecificForArgument(argument);
56 Bit addRestrictedBit(final EffectiveStmtCtx stmt, final BitsTypeDefinition base, final BitEffectiveStatement bit) {
57 // FIXME: this looks like a duplicate of BitsSpecificationEffectiveStatement
58 final Optional<Uint32> declaredPosition = bit.getDeclaredPosition();
59 final Uint32 effectivePos;
60 if (declaredPosition.isEmpty()) {
61 effectivePos = getBaseTypeBitPosition(bit.argument(), base, stmt);
63 effectivePos = declaredPosition.get();
66 return EffectiveTypeUtil.buildBit(bit, effectivePos);
70 EnumPair addRestrictedEnum(final EffectiveStmtCtx stmt, final EnumTypeDefinition base,
71 final EnumEffectiveStatement enumStmt) {
72 final EnumEffectiveStatement enumSubStmt = enumStmt;
73 final Optional<Integer> declaredValue =
74 enumSubStmt.findFirstEffectiveSubstatementArgument(ValueEffectiveStatement.class);
75 final int effectiveValue;
76 if (declaredValue.isEmpty()) {
77 effectiveValue = getBaseTypeEnumValue(enumSubStmt.getDeclared().rawArgument(), base, stmt);
79 effectiveValue = declaredValue.orElseThrow();
82 return EffectiveTypeUtil.buildEnumPair(enumSubStmt, effectiveValue);
85 private static Uint32 getBaseTypeBitPosition(final String bitName, final BitsTypeDefinition baseType,
86 final EffectiveStmtCtx stmt) {
87 for (Bit baseTypeBit : baseType.getBits()) {
88 if (bitName.equals(baseTypeBit.getName())) {
89 return baseTypeBit.getPosition();
93 throw new SourceException(stmt, "Bit '%s' is not a subset of its base bits type %s.", bitName,
98 private static int getBaseTypeEnumValue(final String enumName, final EnumTypeDefinition baseType,
99 final EffectiveStmtCtx ctx) {
100 for (EnumPair baseTypeEnumPair : baseType.getValues()) {
101 if (enumName.equals(baseTypeEnumPair.getName())) {
102 return baseTypeEnumPair.getValue();
106 throw new SourceException(ctx, "Enum '%s' is not a subset of its base enumeration type %s.", enumName,
107 baseType.getQName());