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 com.google.common.annotations.Beta;
11 import com.google.common.base.MoreObjects;
12 import com.google.common.base.Strings;
13 import com.google.common.collect.Collections2;
14 import com.google.common.collect.ImmutableSet;
15 import java.util.Collection;
16 import java.util.Optional;
17 import org.eclipse.jdt.annotation.NonNull;
18 import org.eclipse.jdt.annotation.NonNullByDefault;
19 import org.eclipse.jdt.annotation.Nullable;
20 import org.opendaylight.yangtools.concepts.Immutable;
21 import org.opendaylight.yangtools.concepts.Mutable;
22 import org.opendaylight.yangtools.yang.common.QName;
23 import org.opendaylight.yangtools.yang.model.api.ActionDefinition;
24 import org.opendaylight.yangtools.yang.model.api.ActionNodeContainer;
25 import org.opendaylight.yangtools.yang.model.api.AddedByUsesAware;
26 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
27 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
28 import org.opendaylight.yangtools.yang.model.api.ConstraintMetaDefinition;
29 import org.opendaylight.yangtools.yang.model.api.ContainerLike;
30 import org.opendaylight.yangtools.yang.model.api.CopyableNode;
31 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
32 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
33 import org.opendaylight.yangtools.yang.model.api.DerivableSchemaNode;
34 import org.opendaylight.yangtools.yang.model.api.DocumentedNode;
35 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
36 import org.opendaylight.yangtools.yang.model.api.InputSchemaNode;
37 import org.opendaylight.yangtools.yang.model.api.MandatoryAware;
38 import org.opendaylight.yangtools.yang.model.api.MustConstraintAware;
39 import org.opendaylight.yangtools.yang.model.api.MustDefinition;
40 import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
41 import org.opendaylight.yangtools.yang.model.api.NotificationNodeContainer;
42 import org.opendaylight.yangtools.yang.model.api.OperationDefinition;
43 import org.opendaylight.yangtools.yang.model.api.OutputSchemaNode;
44 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
45 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
46 import org.opendaylight.yangtools.yang.model.api.Status;
47 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
48 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
49 import org.opendaylight.yangtools.yang.model.api.UsesNode;
50 import org.opendaylight.yangtools.yang.model.api.WhenConditionAware;
51 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
52 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
53 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionEffectiveStatement;
54 import org.opendaylight.yangtools.yang.model.api.stmt.ErrorAppTagEffectiveStatement;
55 import org.opendaylight.yangtools.yang.model.api.stmt.ErrorMessageEffectiveStatement;
56 import org.opendaylight.yangtools.yang.model.api.stmt.InputEffectiveStatement;
57 import org.opendaylight.yangtools.yang.model.api.stmt.OutputEffectiveStatement;
58 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceEffectiveStatement;
59 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
60 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
61 import org.opendaylight.yangtools.yang.model.api.stmt.WhenEffectiveStatement;
62 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.EffectiveStatementWithFlags.FlagsBuilder;
63 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
64 import org.opendaylight.yangtools.yang.parser.spi.meta.SchemaPathSupport;
65 import org.opendaylight.yangtools.yang.xpath.api.YangXPathExpression.QualifiedBound;
68 * Mix-in interfaces providing services required by SchemaNode et al. These interfaces provide implementations, or
69 * implementation helpers based on default methods, so the correct behavior can be logically centralized.
72 public final class EffectiveStatementMixins {
73 // Marker interface requiring all mixins to be derived from EffectiveStatement.
74 private interface Mixin<A, D extends DeclaredStatement<A>> extends EffectiveStatement<A, D> {
75 @SuppressWarnings("unchecked")
76 default <T> @NonNull Collection<? extends @NonNull T> filterEffectiveStatements(final Class<T> type) {
77 // Yeah, this is not nice, but saves one transformation
78 return (Collection<? extends T>) Collections2.filter(effectiveSubstatements(), type::isInstance);
83 * Bridge between {@link EffectiveStatement} and {@link AugmentationTarget}.
85 * @param <A> Argument type ({@link Void} if statement does not have argument.)
86 * @param <D> Class representing declared version of this statement.
88 public interface AugmentationTargetMixin<A, D extends DeclaredStatement<A>>
89 extends Mixin<A, D>, AugmentationTarget {
91 default Collection<? extends AugmentationSchemaNode> getAvailableAugmentations() {
92 return filterEffectiveStatements(AugmentationSchemaNode.class);
97 * Bridge between {@link EffectiveStatementWithFlags} and {@link AddedByUsesAware}.
99 * @param <A> Argument type ({@link Void} if statement does not have argument.)
100 * @param <D> Class representing declared version of this statement.
102 public interface AddedByUsesMixin<A, D extends DeclaredStatement<A>>
103 extends EffectiveStatementWithFlags<A, D>, AddedByUsesAware {
106 default boolean isAddedByUses() {
107 return (flags() & FlagsBuilder.ADDED_BY_USES) != 0;
112 * Bridge between {@link EffectiveStatementWithFlags} and {@link ActionNodeContainer}.
114 * @param <A> Argument type ({@link Void} if statement does not have argument.)
115 * @param <D> Class representing declared version of this statement.
117 public interface ActionNodeContainerMixin<A, D extends DeclaredStatement<A>>
118 extends Mixin<A, D>, ActionNodeContainer {
120 default Collection<? extends ActionDefinition> getActions() {
121 return filterEffectiveStatements(ActionDefinition.class);
126 * Bridge between {@link EffectiveStatementWithFlags} and {@link NotificationNodeContainer}.
128 * @param <A> Argument type ({@link Void} if statement does not have argument.)
129 * @param <D> Class representing declared version of this statement.
131 public interface NotificationNodeContainerMixin<A, D extends DeclaredStatement<A>>
132 extends Mixin<A, D>, NotificationNodeContainer {
134 default Collection<? extends NotificationDefinition> getNotifications() {
135 return filterEffectiveStatements(NotificationDefinition.class);
140 * Bridge between {@link EffectiveStatementWithFlags} and {@link MustConstraintAware}.
142 * @param <A> Argument type ({@link Void} if statement does not have argument.)
143 * @param <D> Class representing declared version of this statement.
145 public interface MustConstraintMixin<A, D extends DeclaredStatement<A>> extends Mixin<A, D>, MustConstraintAware {
147 default Collection<? extends @NonNull MustDefinition> getMustConstraints() {
148 return filterEffectiveStatements(MustDefinition.class);
153 * Bridge between {@link EffectiveStatementWithFlags} and {@link CopyableNode}.
155 * @param <A> Argument type ({@link Void} if statement does not have argument.)
156 * @param <D> Class representing declared version of this statement.
158 public interface CopyableMixin<A, D extends DeclaredStatement<A>> extends AddedByUsesMixin<A, D>, CopyableNode {
161 default boolean isAugmenting() {
162 return (flags() & FlagsBuilder.AUGMENTING) != 0;
167 * Bridge between {@link EffectiveStatementWithFlags} and {@link DataNodeContainer}.
169 * @param <A> Argument type ({@link Void} if statement does not have argument.)
170 * @param <D> Class representing declared version of this statement.
172 public interface DataNodeContainerMixin<A, D extends DeclaredStatement<A>> extends DataNodeContainer, Mixin<A, D> {
174 default Collection<? extends TypeDefinition<?>> getTypeDefinitions() {
175 return filterTypeDefinitions(this);
179 default Collection<? extends DataSchemaNode> getChildNodes() {
180 return filterEffectiveStatements(DataSchemaNode.class);
184 default Collection<? extends GroupingDefinition> getGroupings() {
185 return filterEffectiveStatements(GroupingDefinition.class);
189 default Collection<? extends UsesNode> getUses() {
190 return filterEffectiveStatements(UsesNode.class);
195 * Bridge between {@link EffectiveStatementWithFlags} and {@link DataSchemaNode}.
197 * @param <A> Argument type ({@link Void} if statement does not have argument.)
198 * @param <D> Class representing declared version of this statement.
200 public interface DataSchemaNodeMixin<A, D extends DeclaredStatement<A>>
201 extends DataSchemaNode, CopyableMixin<A, D>, SchemaNodeMixin<A, D>, WhenConditionMixin<A, D> {
203 default Optional<Boolean> effectiveConfig() {
204 final int fl = flags() & FlagsBuilder.MASK_CONFIG;
206 case FlagsBuilder.CONFIG_FALSE:
207 return Optional.of(Boolean.FALSE);
208 case FlagsBuilder.CONFIG_TRUE:
209 return Optional.of(Boolean.TRUE);
210 case FlagsBuilder.CONFIG_UNDEF:
211 return Optional.empty();
213 throw new IllegalStateException("Unhandled effective config flags " + fl);
219 * Bridge between {@link EffectiveStatementWithFlags} and {@link DocumentedNode}.
221 * @param <A> Argument type ({@link Void} if statement does not have argument.)
222 * @param <D> Class representing declared version of this statement.
224 public interface DocumentedNodeMixin<A, D extends DeclaredStatement<A>> extends Mixin<A, D>, DocumentedNode {
226 * Bridge between {@link EffectiveStatementWithFlags} and
227 * {@link org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus}.
229 * @param <A> Argument type ({@link Void} if statement does not have argument.)
230 * @param <D> Class representing declared version of this statement.
232 interface WithStatus<A, D extends DeclaredStatement<A>>
233 extends EffectiveStatementWithFlags<A, D>, DocumentedNodeMixin<A, D>, DocumentedNode.WithStatus {
235 default Status getStatus() {
236 final int status = flags() & FlagsBuilder.MASK_STATUS;
238 case FlagsBuilder.STATUS_CURRENT:
239 return Status.CURRENT;
240 case FlagsBuilder.STATUS_DEPRECATED:
241 return Status.DEPRECATED;
242 case FlagsBuilder.STATUS_OBSOLETE:
243 return Status.OBSOLETE;
245 throw new IllegalStateException("Illegal status " + status);
251 default Optional<String> getDescription() {
252 return findFirstEffectiveSubstatementArgument(DescriptionEffectiveStatement.class);
256 default Optional<String> getReference() {
257 return findFirstEffectiveSubstatementArgument(ReferenceEffectiveStatement.class);
261 default Collection<? extends UnknownSchemaNode> getUnknownSchemaNodes() {
262 return filterEffectiveStatements(UnknownSchemaNode.class);
267 * Bridge between {@link EffectiveStatementWithFlags} and {@link ConstraintMetaDefinition}.
269 * @param <A> Argument type ({@link Void} if statement does not have argument.)
270 * @param <D> Class representing declared version of this statement.
272 public interface ConstraintMetaDefinitionMixin<A, D extends DeclaredStatement<A>> extends DocumentedNodeMixin<A, D>,
273 ConstraintMetaDefinition {
275 default Optional<String> getErrorAppTag() {
276 return findFirstEffectiveSubstatementArgument(ErrorAppTagEffectiveStatement.class);
280 default Optional<String> getErrorMessage() {
281 return findFirstEffectiveSubstatementArgument(ErrorMessageEffectiveStatement.class);
286 * Bridge between {@link EffectiveStatementWithFlags} and {@link MandatoryAware}.
288 * @param <A> Argument type ({@link Void} if statement does not have argument.)
289 * @param <D> Class representing declared version of this statement.
291 public interface MandatoryMixin<A, D extends DeclaredStatement<A>>
292 extends EffectiveStatementWithFlags<A, D>, MandatoryAware {
294 default boolean isMandatory() {
295 return (flags() & FlagsBuilder.MANDATORY) != 0;
300 * Bridge between {@link EffectiveStatementWithFlags} and {@code presence} statement.
302 * @param <A> Argument type ({@link Void} if statement does not have argument.)
303 * @param <D> Class representing declared version of this statement.
305 public interface PresenceMixin<A, D extends DeclaredStatement<A>> extends EffectiveStatementWithFlags<A, D> {
306 default boolean presence() {
307 return (flags() & FlagsBuilder.PRESENCE) != 0;
312 * Bridge between {@link EffectiveStatementWithFlags} and {@link SchemaNode}.
314 * @param <A> Argument type ({@link Void} if statement does not have argument.)
315 * @param <D> Class representing declared version of this statement.
317 public interface SchemaNodeMixin<A, D extends DeclaredStatement<A>>
318 extends DocumentedNodeMixin.WithStatus<A, D>, SchemaNode {
319 // FIXME: ditch all this complexity once we do not require SchemaPath
321 default QName getQName() {
322 return SchemaPathSupport.extractQName(pathObject());
327 default SchemaPath getPath() {
328 return SchemaPathSupport.extractPath(this, pathObject());
331 @NonNull Immutable pathObject();
335 * Bridge between {@link EffectiveStatementWithFlags} and {@link UnknownSchemaNode}.
337 * @param <A> Argument type ({@link Void} if statement does not have argument.)
338 * @param <D> Class representing declared version of this statement.
340 public interface UnknownSchemaNodeMixin<A, D extends DeclaredStatement<A>>
341 extends SchemaNodeMixin<A, D>, CopyableMixin<A, D>, UnknownSchemaNode {
344 default String getNodeParameter() {
345 return Strings.nullToEmpty(getDeclared().rawArgument());
350 * Bridge between {@link EffectiveStatementWithFlags} and {@code ordered-by} statement.
352 * @param <A> Argument type ({@link Void} if statement does not have argument.)
353 * @param <D> Class representing declared version of this statement.
355 public interface UserOrderedMixin<A, D extends DeclaredStatement<A>> extends EffectiveStatementWithFlags<A, D> {
356 default boolean userOrdered() {
357 return (flags() & FlagsBuilder.USER_ORDERED) != 0;
362 * Helper used to locate the effective {@code when} statement and exposing its argument as per
363 * {@link WhenConditionAware}.
365 * @param <A> Argument type ({@link Void} if statement does not have argument.)
366 * @param <D> Class representing declared version of this statement.
368 public interface WhenConditionMixin<A, D extends DeclaredStatement<A>> extends Mixin<A, D>, WhenConditionAware {
370 default Optional<QualifiedBound> getWhenCondition() {
371 return findFirstEffectiveSubstatementArgument(WhenEffectiveStatement.class);
376 * Helper bridge for operation containers ({@code input} and {@code output}).
378 * @param <D> Class representing declared version of this statement.
380 public interface OperationContainerMixin<D extends DeclaredStatement<QName>>
381 extends ContainerLike, DocumentedNodeMixin.WithStatus<QName, D>, DataNodeContainerMixin<QName, D>,
382 MustConstraintMixin<QName, D>, WhenConditionMixin<QName, D>, AugmentationTargetMixin<QName, D>,
383 SchemaNodeMixin<QName, D>, CopyableMixin<QName, D> {
385 default @NonNull QName argument() {
390 default Optional<ActionDefinition> findAction(final QName qname) {
391 return Optional.empty();
395 default Optional<NotificationDefinition> findNotification(final QName qname) {
396 return Optional.empty();
400 default Collection<? extends ActionDefinition> getActions() {
401 return ImmutableSet.of();
405 default Collection<? extends NotificationDefinition> getNotifications() {
406 return ImmutableSet.of();
410 default Optional<Boolean> effectiveConfig() {
411 return Optional.empty();
414 default String defaultToString() {
415 return MoreObjects.toStringHelper(this).add("qname", getQName()).toString();
420 * Helper bridge for {@code anydata} and {@code anyxml} opaque data.
422 * @param <D> Class representing declared version of this statement.
424 public interface OpaqueDataSchemaNodeMixin<D extends DeclaredStatement<QName>>
425 extends DerivableSchemaNode, DataSchemaNodeMixin<QName, D>, DocumentedNodeMixin.WithStatus<QName, D>,
426 MandatoryMixin<QName, D>, MustConstraintMixin<QName, D>, WhenConditionMixin<QName, D> {
428 default @NonNull QName argument() {
434 * Helper bridge for {@code rpc} and {@code action} operations.
436 * @param <D> Class representing declared version of this statement.
438 public interface OperationDefinitionMixin<D extends DeclaredStatement<QName>>
439 extends SchemaNodeMixin<QName, D>, OperationDefinition {
441 default @NonNull QName argument() {
446 default Collection<? extends @NonNull TypeDefinition<?>> getTypeDefinitions() {
447 return filterTypeDefinitions(this);
451 default Collection<? extends @NonNull GroupingDefinition> getGroupings() {
452 return filterEffectiveStatements(GroupingDefinition.class);
456 default InputSchemaNode getInput() {
457 return findAsContainer(this, InputEffectiveStatement.class, InputSchemaNode.class);
461 default OutputSchemaNode getOutput() {
462 return findAsContainer(this, OutputEffectiveStatement.class, OutputSchemaNode.class);
467 * Support interface for various mixins. Implementations are required to store 32bits worth of flags, which are
468 * globally assigned to sub-interfaces -- thus providing storage for many low-cardinality properties.
470 * @param <A> Argument type ({@link Void} if statement does not have argument.)
471 * @param <D> Class representing declared version of this statement.
473 public interface EffectiveStatementWithFlags<A, D extends DeclaredStatement<A>> extends Mixin<A, D> {
475 * Return flags associated with this statements. Flags can be built using {@link FlagsBuilder}.
477 * @return Flag field value (32 bits).
482 final class FlagsBuilder implements Mutable {
483 // We still have 23 flags remaining
484 static final int STATUS_CURRENT = 0x0001;
485 static final int STATUS_DEPRECATED = 0x0002;
486 static final int STATUS_OBSOLETE = 0x0003;
487 static final int MASK_STATUS = 0x0003;
489 static final int MANDATORY = 0x0004;
491 static final int AUGMENTING = 0x0010;
492 static final int ADDED_BY_USES = 0x0020;
493 private static final int MASK_HISTORY = 0x0030;
495 static final int USER_ORDERED = 0x0040;
496 static final int PRESENCE = 0x0080;
498 static final int CONFIG_UNDEF = 0x0100;
499 static final int CONFIG_FALSE = 0x0200;
500 static final int CONFIG_TRUE = 0x0300;
501 static final int MASK_CONFIG = CONFIG_TRUE;
505 public FlagsBuilder setConfiguration(final @Nullable Boolean config) {
507 if (config != null) {
508 fl = config ? CONFIG_TRUE : CONFIG_FALSE;
512 flags = flags & ~MASK_CONFIG | fl;
516 public FlagsBuilder setHistory(final CopyableNode history) {
517 flags = flags & ~MASK_HISTORY
518 | (history.isAugmenting() ? AUGMENTING : 0) | (history.isAddedByUses() ? ADDED_BY_USES : 0);
522 public FlagsBuilder setMandatory(final boolean mandatory) {
531 public FlagsBuilder setPresence(final boolean presence) {
540 public FlagsBuilder setStatus(final Status status) {
544 bits = STATUS_CURRENT;
547 bits = STATUS_DEPRECATED;
550 bits = STATUS_OBSOLETE;
553 throw new IllegalStateException("Unhandled status " + status);
556 flags = flags & ~MASK_STATUS | bits;
560 public FlagsBuilder setUserOrdered(final boolean userOrdered) {
562 flags |= USER_ORDERED;
564 flags &= ~USER_ORDERED;
569 public int toFlags() {
575 private EffectiveStatementMixins() {
578 static <T extends ContainerLike> T findAsContainer(final EffectiveStatement<?, ?> stmt,
579 final Class<? extends EffectiveStatement<QName, ?>> type, final Class<T> target) {
580 return target.cast(stmt.findFirstEffectiveSubstatement(type).get());
583 static Collection<? extends @NonNull TypeDefinition<?>> filterTypeDefinitions(final Mixin<?, ?> stmt) {
584 return Collections2.transform(stmt.filterEffectiveStatements(TypedefEffectiveStatement.class),
585 TypedefEffectiveStatement::getTypeDefinition);
588 public static int historyAndStatusFlags(final CopyableNode history,
589 final Collection<? extends EffectiveStatement<?, ?>> substatements) {
590 return new FlagsBuilder()
592 .setStatus(AbstractStatementSupport.findFirstArgument(substatements,
593 StatusEffectiveStatement.class, Status.CURRENT))