2 * Copyright (c) 2015 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.stmt.reactor;
10 import com.google.common.base.Preconditions;
11 import com.google.common.base.Throwables;
12 import com.google.common.collect.Multimap;
13 import com.google.common.collect.Multimaps;
14 import java.util.ArrayList;
15 import java.util.Collection;
16 import java.util.Collections;
17 import java.util.EnumMap;
18 import java.util.EventListener;
19 import java.util.Iterator;
20 import java.util.LinkedHashMap;
22 import javax.annotation.Nonnull;
23 import org.opendaylight.yangtools.concepts.Identifiable;
24 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
25 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
26 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
27 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
28 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
29 import org.opendaylight.yangtools.yang.model.api.meta.StatementSource;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyHistory;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
34 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
36 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementNamespace;
37 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
39 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
40 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
41 import org.opendaylight.yangtools.yang.parser.stmt.reactor.NamespaceBehaviourWithListeners.ValueAddedListener;
43 public abstract class StatementContextBase<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
44 extends NamespaceStorageSupport implements StmtContext.Mutable<A, D, E>, Identifiable<StatementIdentifier> {
47 * event listener when an item is added to model namespace
49 interface OnNamespaceItemAdded extends EventListener {
51 * @throws SourceException
53 void namespaceItemAdded(StatementContextBase<?, ?, ?> context, Class<?> namespace, Object key, Object value);
57 * event listener when a parsing {@link ModelProcessingPhase} is completed
59 interface OnPhaseFinished extends EventListener {
61 * @throws SourceException
63 boolean phaseFinished(StatementContextBase<?, ?, ?> context, ModelProcessingPhase phase);
67 * interface for all mutations within an {@link ModelActionBuilder.InferenceAction}
69 interface ContextMutation {
74 private final StatementDefinitionContext<A, D, E> definition;
75 private final StatementIdentifier identifier;
76 private final StatementSourceReference statementDeclSource;
78 private final Multimap<ModelProcessingPhase, OnPhaseFinished> phaseListeners =
79 Multimaps.newListMultimap(new EnumMap<>(ModelProcessingPhase.class), () -> new ArrayList<>(1));
81 private final Multimap<ModelProcessingPhase, ContextMutation> phaseMutation =
82 Multimaps.newListMultimap(new EnumMap<>(ModelProcessingPhase.class), () -> new ArrayList<>(1));
84 private final Map<StatementIdentifier, StatementContextBase<?, ?, ?>> substatements = new LinkedHashMap<>(1);
86 private final Collection<StatementContextBase<?, ?, ?>> declared = new ArrayList<>(1);
87 private final Collection<StatementContextBase<?, ?, ?>> effective = new ArrayList<>(1);
88 private final Collection<StatementContextBase<?, ?, ?>> effectOfStatement = new ArrayList<>(1);
90 private SupportedByFeatures supportedByFeatures = SupportedByFeatures.UNDEFINED;
91 private CopyHistory copyHistory = CopyHistory.original();
92 private boolean isSupportedToBuildEffective = true;
93 private ModelProcessingPhase completedPhase = null;
94 private StatementContextBase<?, ?, ?> originalCtx;
95 private D declaredInstance;
96 private E effectiveInstance;
97 private int order = 0;
99 StatementContextBase(@Nonnull final ContextBuilder<A, D, E> builder) {
100 this.definition = builder.getDefinition();
101 this.identifier = builder.createIdentifier();
102 this.statementDeclSource = builder.getStamementSource();
105 StatementContextBase(final StatementContextBase<A, D, E> original) {
106 this.definition = Preconditions.checkNotNull(original.definition,
107 "Statement context definition cannot be null copying from: %s", original.getStatementSourceReference());
108 this.identifier = Preconditions.checkNotNull(original.identifier,
109 "Statement context identifier cannot be null copying from: %s", original.getStatementSourceReference());
110 this.statementDeclSource = Preconditions.checkNotNull(original.statementDeclSource,
111 "Statement context statementDeclSource cannot be null copying from: %s",
112 original.getStatementSourceReference());
116 public Collection<StatementContextBase<?, ?, ?>> getEffectOfStatement() {
117 return effectOfStatement;
121 public void addAsEffectOfStatement(final StatementContextBase<?, ?, ?> ctx) {
122 effectOfStatement.add(ctx);
125 public SupportedByFeatures getSupportedByFeatures() {
126 return supportedByFeatures;
130 public void setSupportedByFeatures(final boolean isSupported) {
131 this.supportedByFeatures = isSupported ? SupportedByFeatures.SUPPORTED : SupportedByFeatures.NOT_SUPPORTED;
135 public boolean isSupportedToBuildEffective() {
136 return isSupportedToBuildEffective;
140 public void setIsSupportedToBuildEffective(final boolean isSupportedToBuildEffective) {
141 this.isSupportedToBuildEffective = isSupportedToBuildEffective;
145 public CopyHistory getCopyHistory() {
150 public void appendCopyHistory(final CopyType typeOfCopy, final CopyHistory toAppend) {
151 copyHistory = copyHistory.append(typeOfCopy, toAppend);
155 public StatementContextBase<?, ?, ?> getOriginalCtx() {
160 public void setOriginalCtx(final StatementContextBase<?, ?, ?> originalCtx) {
161 this.originalCtx = originalCtx;
165 public void setOrder(final int order) {
170 public int getOrder() {
175 public ModelProcessingPhase getCompletedPhase() {
176 return completedPhase;
180 public void setCompletedPhase(final ModelProcessingPhase completedPhase) {
181 this.completedPhase = completedPhase;
185 * @return context of parent of statement
188 public abstract StatementContextBase<?, ?, ?> getParentContext();
191 * @return root context of statement
194 public abstract RootStatementContext<?, ?, ?> getRoot();
197 * @return statement identifier
200 public StatementIdentifier getIdentifier() {
205 * @return origin of statement
208 public StatementSource getStatementSource() {
209 return statementDeclSource.getStatementSource();
213 * @return reference of statement source
216 public StatementSourceReference getStatementSourceReference() {
217 return statementDeclSource;
221 * @return raw statement argument string
224 public String rawStatementArgument() {
225 return identifier.getArgument();
229 * @return collection of declared substatements
232 public Collection<StatementContextBase<?, ?, ?>> declaredSubstatements() {
233 return Collections.unmodifiableCollection(declared);
237 * @return collection of substatements
240 public Collection<StatementContextBase<?, ?, ?>> substatements() {
241 return Collections.unmodifiableCollection(substatements.values());
245 * @return collection of effective substatements
248 public Collection<StatementContextBase<?, ?, ?>> effectiveSubstatements() {
249 return Collections.unmodifiableCollection(effective);
252 public void removeStatementsFromEffectiveSubstatements(final Collection<StatementContextBase<?, ?, ?>> substatements) {
253 effective.removeAll(substatements);
256 public void removeStatementFromEffectiveSubstatements(final StatementDefinition refineSubstatementDef) {
257 final Iterator<StatementContextBase<?, ?, ?>> iterator = effective.iterator();
258 while (iterator.hasNext()) {
259 final StatementContextBase<?, ?, ?> next = iterator.next();
260 if (next.getPublicDefinition().equals(refineSubstatementDef)) {
267 * adds effective statement to collection of substatements
269 * @param substatement substatement
270 * @throws IllegalStateException
271 * if added in declared phase
272 * @throws NullPointerException
273 * if statement parameter is null
275 public void addEffectiveSubstatement(final StatementContextBase<?, ?, ?> substatement) {
277 final ModelProcessingPhase inProgressPhase = getRoot().getSourceContext().getInProgressPhase();
278 Preconditions.checkState(inProgressPhase == ModelProcessingPhase.FULL_DECLARATION
279 || inProgressPhase == ModelProcessingPhase.EFFECTIVE_MODEL,
280 "Effective statement cannot be added in declared phase at: %s", getStatementSourceReference());
282 effective.add(Preconditions.checkNotNull(substatement,
283 "StatementContextBase effective substatement cannot be null at: %s", getStatementSourceReference()));
287 * adds declared statement to collection of substatements
289 * @param substatement substatement
290 * @throws IllegalStateException
291 * if added in effective phase
292 * @throws NullPointerException
293 * if statement parameter is null
295 public void addDeclaredSubstatement(final StatementContextBase<?, ?, ?> substatement) {
297 final ModelProcessingPhase inProgressPhase = getRoot().getSourceContext().getInProgressPhase();
298 Preconditions.checkState(inProgressPhase != ModelProcessingPhase.EFFECTIVE_MODEL,
299 "Declared statement cannot be added in effective phase at: %s", getStatementSourceReference());
301 declared.add(Preconditions.checkNotNull(substatement,
302 "StatementContextBase declared substatement cannot be null at: %s", getStatementSourceReference()));
306 * builds new substatement from statement definition context and statement source reference
308 * @param def definition context
309 * @param ref source reference
311 * @return instance of ContextBuilder
313 @SuppressWarnings({ "rawtypes", "unchecked" })
314 public ContextBuilder<?, ?, ?> substatementBuilder(final StatementDefinitionContext<?, ?, ?> def,
315 final StatementSourceReference ref) {
316 return new ContextBuilder(def, ref) {
319 public StatementContextBase build() throws SourceException {
320 StatementContextBase<?, ?, ?> potential = null;
322 final StatementDefinition stmtDef = getDefinition().getPublicView();
323 if (stmtDef != Rfc6020Mapping.AUGMENT && stmtDef != Rfc6020Mapping.DEVIATION
324 && stmtDef != Rfc6020Mapping.TYPE) {
325 potential = substatements.get(createIdentifier());
327 if (potential == null) {
328 potential = new SubstatementContext(StatementContextBase.this, this);
329 substatements.put(createIdentifier(), potential);
330 getDefinition().onStatementAdded(potential);
332 potential.resetLists();
333 switch (this.getStamementSource().getStatementSource()) {
335 addDeclaredSubstatement(potential);
338 addEffectiveSubstatement(potential);
347 * @return local namespace behaviour type {@link NamespaceBehaviour}
350 public StorageNodeType getStorageNodeType() {
351 return StorageNodeType.STATEMENT_LOCAL;
355 * builds {@link DeclaredStatement} for statement context
358 public D buildDeclared() {
359 Preconditions.checkArgument(completedPhase == ModelProcessingPhase.FULL_DECLARATION
360 || completedPhase == ModelProcessingPhase.EFFECTIVE_MODEL);
361 if (declaredInstance == null) {
362 declaredInstance = definition().getFactory().createDeclared(this);
364 return declaredInstance;
368 * builds {@link EffectiveStatement} for statement context
371 public E buildEffective() {
372 if (effectiveInstance == null) {
373 effectiveInstance = definition().getFactory().createEffective(this);
375 return effectiveInstance;
379 * clears collection of declared substatements
381 * @throws IllegalStateException
382 * if invoked in effective build phase
386 final SourceSpecificContext sourceContext = getRoot().getSourceContext();
387 Preconditions.checkState(sourceContext.getInProgressPhase() != ModelProcessingPhase.EFFECTIVE_MODEL,
388 "Declared statements list cannot be cleared in effective phase at: %s", getStatementSourceReference());
394 * tries to execute current {@link ModelProcessingPhase} of source parsing
397 * to be executed (completed)
398 * @return if phase was successfully completed
399 * @throws SourceException
400 * when an error occured in source parsing
402 boolean tryToCompletePhase(final ModelProcessingPhase phase) {
403 final Iterator<ContextMutation> openMutations = phaseMutation.get(phase).iterator();
404 boolean finished = true;
405 while (openMutations.hasNext()) {
406 final ContextMutation current = openMutations.next();
407 if (current.isFinished()) {
408 openMutations.remove();
413 for (final StatementContextBase<?, ?, ?> child : declared) {
414 finished &= child.tryToCompletePhase(phase);
416 for (final StatementContextBase<?, ?, ?> child : effective) {
417 finished &= child.tryToCompletePhase(phase);
421 onPhaseCompleted(phase);
428 * occurs on end of {@link ModelProcessingPhase} of source parsing
431 * that was to be completed (finished)
432 * @throws SourceException
433 * when an error occured in source parsing
435 private void onPhaseCompleted(final ModelProcessingPhase phase) {
436 completedPhase = phase;
437 final Iterator<OnPhaseFinished> listener = phaseListeners.get(completedPhase).iterator();
438 while (listener.hasNext()) {
439 final OnPhaseFinished next = listener.next();
440 if (next.phaseFinished(this, phase)) {
447 * Ends declared section of current node.
450 * @throws SourceException
452 void endDeclared(final StatementSourceReference ref, final ModelProcessingPhase phase) {
453 definition().onDeclarationFinished(this, phase);
457 * @return statement definition
459 protected final StatementDefinitionContext<A, D, E> definition() {
464 protected void checkLocalNamespaceAllowed(final Class<? extends IdentifierNamespace<?, ?>> type) {
465 definition().checkNamespaceAllowed(type);
469 * occurs when an item is added to model namespace
471 * @throws SourceException instance of SourceException
474 protected <K, V, N extends IdentifierNamespace<K, V>> void onNamespaceElementAdded(final Class<N> type, final K key, final V value) {
475 // definition().onNamespaceElementAdded(this, type, key, value);
478 <K, V, N extends IdentifierNamespace<K, V>> void onNamespaceItemAddedAction(final Class<N> type, final K key,
479 final OnNamespaceItemAdded listener) throws SourceException {
480 final Object potential = getFromNamespace(type, key);
481 if (potential != null) {
482 listener.namespaceItemAdded(this, type, key, potential);
485 final NamespaceBehaviour<K, V, N> behaviour = getBehaviourRegistry().getNamespaceBehaviour(type);
486 if (behaviour instanceof NamespaceBehaviourWithListeners) {
487 final NamespaceBehaviourWithListeners<K, V, N> casted = (NamespaceBehaviourWithListeners<K, V, N>) behaviour;
488 casted.addValueListener(new ValueAddedListener<K>(this, key) {
490 void onValueAdded(final Object key, final Object value) {
492 listener.namespaceItemAdded(StatementContextBase.this, type, key, value);
493 } catch (final SourceException e) {
494 throw Throwables.propagate(e);
502 * @see StatementSupport#getPublicView()
505 public StatementDefinition getPublicDefinition() {
506 return definition().getPublicView();
510 * @return new {@link ModelActionBuilder} for the phase
513 public ModelActionBuilder newInferenceAction(final ModelProcessingPhase phase) {
514 return getRoot().getSourceContext().newInferenceAction(phase);
518 * adds {@link OnPhaseFinished} listener for a {@link ModelProcessingPhase} end
520 * @throws SourceException
522 void addPhaseCompletedListener(final ModelProcessingPhase phase, final OnPhaseFinished listener) {
524 Preconditions.checkNotNull(phase, "Statement context processing phase cannot be null at: %s",
525 getStatementSourceReference());
526 Preconditions.checkNotNull(listener, "Statement context phase listener cannot be null at: %s",
527 getStatementSourceReference());
529 ModelProcessingPhase finishedPhase = completedPhase;
530 while (finishedPhase != null) {
531 if (phase.equals(finishedPhase)) {
532 listener.phaseFinished(this, finishedPhase);
535 finishedPhase = finishedPhase.getPreviousPhase();
537 phaseListeners.put(phase, listener);
541 * adds {@link ContextMutation} to {@link ModelProcessingPhase}
543 * @throws IllegalStateException
544 * when the mutation was registered after phase was completed
546 void addMutation(final ModelProcessingPhase phase, final ContextMutation mutation) {
547 ModelProcessingPhase finishedPhase = completedPhase;
548 while (finishedPhase != null) {
549 if (phase.equals(finishedPhase)) {
550 throw new IllegalStateException("Mutation registered after phase was completed at: " +
551 getStatementSourceReference());
553 finishedPhase = finishedPhase.getPreviousPhase();
555 phaseMutation.put(phase, mutation);
559 * adds statement to namespace map with the key
562 * {@link StatementNamespace} child that determines namespace to be added to
564 * of type according to namespace class specification
566 * to be added to namespace map
569 public <K, KT extends K, N extends StatementNamespace<K, ?, ?>> void addContext(final Class<N> namespace, final KT key,
570 final StmtContext<?, ?, ?> stmt) {
571 addContextToNamespace(namespace, (K) key, stmt);