2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.spi.meta;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.annotations.Beta;
13 import com.google.common.collect.ImmutableList;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
16 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
18 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
19 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
22 * Specialization of {@link AbstractStatementSupport} for statements which carry a Boolean argument and are essentially
23 * context-independent.
25 * @param <D> Declared Statement representation
26 * @param <E> Effective Statement representation
29 public abstract class AbstractBooleanStatementSupport<D extends DeclaredStatement<Boolean>,
30 E extends EffectiveStatement<Boolean, D>> extends AbstractStatementSupport<Boolean, D, E> {
31 private final @NonNull E emptyEffectiveFalse;
32 private final @NonNull E emptyEffectiveTrue;
33 private final @NonNull D emptyDeclaredFalse;
34 private final @NonNull D emptyDeclaredTrue;
36 protected AbstractBooleanStatementSupport(final StatementDefinition publicDefinition,
37 final E emptyEffectiveFalse, final E emptyEffectiveTrue, final StatementPolicy<Boolean, D> policy) {
38 super(publicDefinition, policy);
39 this.emptyEffectiveFalse = requireNonNull(emptyEffectiveFalse);
40 this.emptyEffectiveTrue = requireNonNull(emptyEffectiveTrue);
41 emptyDeclaredFalse = requireNonNull(emptyEffectiveFalse.getDeclared());
42 emptyDeclaredTrue = requireNonNull(emptyEffectiveTrue.getDeclared());
46 public final Boolean parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
47 if ("true".equals(value)) {
49 } else if ("false".equals(value)) {
52 throw new SourceException(ctx, "Invalid '%s' statement %s '%s', it can be either 'true' or 'false'",
53 getStatementName(), getArgumentDefinition().get().getArgumentName(), value);
58 public final String internArgument(final String rawArgument) {
59 if ("true".equals(rawArgument)) {
61 } else if ("false".equals(rawArgument)) {
69 protected final D createEmptyDeclared(final StmtContext<Boolean, D, ?> ctx) {
70 return ctx.getArgument() ? emptyDeclaredTrue : emptyDeclaredFalse;
74 protected final E createEffective(final Current<Boolean, D> stmt,
75 final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
76 return substatements.isEmpty() ? createEmptyEffective(stmt) : createEffective(stmt.declared(), substatements);
79 protected abstract @NonNull E createEffective(@NonNull D declared,
80 ImmutableList<? extends EffectiveStatement<?, ?>> substatements);
82 protected abstract @NonNull E createEmptyEffective(@NonNull D declared);
84 private @NonNull E createEmptyEffective(final Current<Boolean, D> stmt) {
85 final D declared = stmt.declared();
86 if (emptyDeclaredTrue.equals(declared)) {
87 return emptyEffectiveTrue;
88 } else if (emptyDeclaredFalse.equals(declared)) {
89 return emptyEffectiveFalse;
91 return createEmptyEffective(declared);