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.rfc7950.stmt;
10 import static com.google.common.base.Verify.verifyNotNull;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.annotations.Beta;
14 import com.google.common.collect.ImmutableList;
15 import java.util.Collection;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.yangtools.yang.common.Empty;
18 import org.opendaylight.yangtools.yang.common.QName;
19 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
20 import org.opendaylight.yangtools.yang.model.api.meta.StatementSource;
23 * An abstract base class for {@link DeclaredStatement} implementations. This is a direct competition to
24 * {@link org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement}, providing lower-footprint
28 // FIXME: 7.0.0: we should be able to promote this to model.spi.meta package.
29 public abstract class AbstractDeclaredStatement<A> extends AbstractModelStatement<A> implements DeclaredStatement<A> {
30 protected AbstractDeclaredStatement() {
34 public StatementSource getStatementSource() {
35 return StatementSource.DECLARATION;
39 public Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
40 // Default to reduce load on subclasses and keep the number of implementations down
41 return ImmutableList.of();
45 * Utility method for recovering singleton lists squashed by {@link #maskList(ImmutableList)}.
47 * @param masked list to unmask
48 * @return Unmasked list
49 * @throws NullPointerException if masked is null
50 * @throws ClassCastException if masked object does not match DeclaredStatement
52 @SuppressWarnings({ "rawtypes", "unchecked" })
53 protected static final @NonNull ImmutableList<? extends DeclaredStatement<?>> unmaskList(
54 final @NonNull Object masked) {
55 return (ImmutableList) unmaskList(masked, DeclaredStatement.class);
58 public abstract static class WithRawArgument<A> extends AbstractDeclaredStatement<A> {
59 public abstract static class WithSubstatements<A> extends WithRawArgument<A> {
60 private final @NonNull Object substatements;
62 protected WithSubstatements(final String rawArgument,
63 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
65 this.substatements = maskList(substatements);
69 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
70 return unmaskList(substatements);
74 private final String rawArgument;
76 protected WithRawArgument(final String rawArgument) {
77 this.rawArgument = rawArgument;
81 public final String rawArgument() {
86 public abstract static class WithQNameArgument extends AbstractDeclaredStatement<QName> {
87 public abstract static class WithSubstatements extends WithQNameArgument {
88 private final @NonNull Object substatements;
90 protected WithSubstatements(final QName argument,
91 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
93 this.substatements = maskList(substatements);
97 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
98 return unmaskList(substatements);
102 private final @NonNull QName argument;
104 protected WithQNameArgument(final QName argument) {
105 this.argument = requireNonNull(argument);
109 public final QName argument() {
114 public final String rawArgument() {
115 return argument.getLocalName();
119 public abstract static class WithRawStringArgument extends WithRawArgument<String> {
120 public abstract static class WithSubstatements extends WithRawStringArgument {
121 private final @NonNull Object substatements;
123 protected WithSubstatements(final String rawArgument,
124 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
126 this.substatements = maskList(substatements);
130 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
131 return unmaskList(substatements);
135 protected WithRawStringArgument(final String rawArgument) {
136 super(verifyNotNull(rawArgument));
140 public final String argument() {
141 return verifyNotNull(rawArgument());
145 public abstract static class WithArgument<A> extends WithRawArgument<A> {
146 public abstract static class WithSubstatements<A> extends WithArgument<A> {
147 private final @NonNull Object substatements;
149 protected WithSubstatements(final String rawArgument, final A argument,
150 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
151 super(rawArgument, argument);
152 this.substatements = maskList(substatements);
156 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
157 return unmaskList(substatements);
161 private final @NonNull A argument;
163 protected WithArgument(final String rawArgument, final A argument) {
165 this.argument = requireNonNull(argument);
169 public final A argument() {
174 public abstract static class ArgumentToString<A> extends AbstractDeclaredStatement<A> {
175 public abstract static class WithSubstatements<A> extends ArgumentToString<A> {
176 private final @NonNull Object substatements;
178 protected WithSubstatements(final A argument,
179 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
181 this.substatements = maskList(substatements);
185 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
186 return unmaskList(substatements);
190 private final @NonNull A argument;
192 protected ArgumentToString(final @NonNull A argument) {
193 this.argument = requireNonNull(argument);
197 public final A argument() {
202 public final String rawArgument() {
203 return argument.toString();
207 public abstract static class WithoutArgument extends AbstractDeclaredStatement<Empty> {
208 public abstract static class WithSubstatements extends WithoutArgument {
209 private final @NonNull Object substatements;
211 protected WithSubstatements(final ImmutableList<? extends DeclaredStatement<?>> substatements) {
212 this.substatements = maskList(substatements);
216 public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
217 return unmaskList(substatements);
222 public final Empty argument() {
223 return Empty.getInstance();
227 public final String rawArgument() {