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.collect.HashMultimap;
12 import com.google.common.collect.ImmutableMap;
13 import com.google.common.collect.Multimap;
14 import java.util.ArrayList;
15 import java.util.Collection;
16 import java.util.Iterator;
17 import java.util.List;
19 import java.util.Objects;
20 import javax.annotation.Nullable;
21 import org.opendaylight.yangtools.concepts.Mutable;
22 import org.opendaylight.yangtools.yang.common.QName;
23 import org.opendaylight.yangtools.yang.common.QNameModule;
24 import org.opendaylight.yangtools.yang.common.YangConstants;
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.stmt.ExtensionStatement;
30 import org.opendaylight.yangtools.yang.parser.spi.ExtensionNamespace;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.ImportedNamespaceContext;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
34 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour;
36 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.NamespaceStorageNode;
37 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
40 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModule;
41 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModuleMap;
42 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinition;
43 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinitionMap;
44 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
45 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
46 import org.opendaylight.yangtools.yang.parser.spi.source.StatementStreamSource;
47 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.BitsSpecificationImpl;
48 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Decimal64SpecificationImpl;
49 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.EnumSpecificationImpl;
50 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.IdentityRefSpecificationImpl;
51 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.InstanceIdentifierSpecificationImpl;
52 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.LeafrefSpecificationImpl;
53 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.TypeUtils;
54 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnionSpecificationImpl;
55 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnknownStatementImpl;
56 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
58 public class SourceSpecificContext implements NamespaceStorageNode, NamespaceBehaviour.Registry, Mutable {
60 public enum PhaseCompletionProgress {
66 private final StatementStreamSource source;
67 private final BuildGlobalContext currentContext;
68 private final Collection<NamespaceStorageNode> importedNamespaces = new ArrayList<>();
69 private final Multimap<ModelProcessingPhase, ModifierImpl> modifiers = HashMultimap.create();
71 private RootStatementContext<?, ?, ?> root;
73 private ModelProcessingPhase inProgressPhase;
74 private ModelProcessingPhase finishedPhase = ModelProcessingPhase.INIT;
75 private final QNameToStatementDefinitionMap qNameToStmtDefMap = new QNameToStatementDefinitionMap();
76 private final PrefixToModuleMap prefixToModuleMap = new PrefixToModuleMap();
79 SourceSpecificContext(final BuildGlobalContext currentContext, final StatementStreamSource source) {
81 this.currentContext = currentContext;
84 ModelProcessingPhase getInProgressPhase() {
85 return inProgressPhase;
88 StatementDefinitionContext<?, ?, ?> getDefinition(final QName name) {
89 return currentContext.getStatementDefinition(name);
92 ContextBuilder<?, ?, ?> createDeclaredChild(final StatementContextBase<?, ?, ?> current, final QName name, final StatementSourceReference ref) {
93 StatementDefinitionContext<?, ?, ?> def = getDefinition(name);
96 //unknown-stmts (from import, include or local-scope)
97 if (qNameToStmtDefMap.get(Utils.trimPrefix(name)) != null) {
98 QName key = Utils.qNameFromArgument(current, name.getLocalName());
100 final StatementContextBase<?,?,?> extension = (StatementContextBase<?, ?, ?>) currentContext
101 .getAllFromNamespace(ExtensionNamespace.class).get(key);
102 if (extension != null) {
103 final QName qName = QName.create(((QName) ((SubstatementContext<?, ?, ?>) extension).getStatementArgument())
104 .getModule().getNamespace(), ((QName) ((SubstatementContext<?, ?, ?>) extension).
105 getStatementArgument()).getModule().getRevision(), extension.getIdentifier().getArgument());
107 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition
108 (getNewStatementDefinition(qName)));
110 throw new IllegalArgumentException("Not found unknown statement: " + name);
115 def = resolveTypeBodyStmts(name.getLocalName());
118 else if (current != null && current.definition().getRepresentingClass().equals(UnknownStatementImpl.class)) {
119 QName qName = Utils.qNameFromArgument(current, name.getLocalName());
121 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition
122 (getNewStatementDefinition(qName)));
125 Preconditions.checkArgument(def != null, "Statement %s does not have type mapping defined.", name);
126 if (current == null) {
127 return createDeclaredRoot(def, ref);
129 return current.substatementBuilder(def, ref);
132 // FIXME: This should be populated differently
133 StatementDefinition getNewStatementDefinition(final QName qName) {
134 return new ModelDefinedStatementDefinition(qName);
137 @SuppressWarnings({"rawtypes", "unchecked"})
138 private ContextBuilder<?, ?, ?> createDeclaredRoot(final StatementDefinitionContext<?, ?, ?> def, final StatementSourceReference ref) {
139 return new ContextBuilder(def, ref) {
142 public StatementContextBase build() throws SourceException {
144 root = new RootStatementContext(this, SourceSpecificContext.this);
146 Preconditions.checkState(root.getIdentifier().equals(createIdentifier()), "Root statement was already defined as %s.", root.getIdentifier());
155 RootStatementContext<?, ?, ?> getRoot() {
159 DeclaredStatement<?> buildDeclared() {
160 return root.buildDeclared();
163 EffectiveStatement<?, ?> buildEffective() {
164 return root.buildEffective();
167 void startPhase(final ModelProcessingPhase phase) {
168 @Nullable ModelProcessingPhase previousPhase = phase.getPreviousPhase();
169 Preconditions.checkState(Objects.equals(previousPhase, finishedPhase));
170 Preconditions.checkState(modifiers.get(previousPhase).isEmpty());
171 inProgressPhase = phase;
175 public <K, V, N extends IdentifierNamespace<K, V>> void addToLocalStorage(final Class<N> type, final K key, final V value) {
176 if (ImportedNamespaceContext.class.isAssignableFrom(type)) {
177 importedNamespaces.add((NamespaceStorageNode) value);
179 getRoot().addToLocalStorage(type, key, value);
183 public StorageNodeType getStorageNodeType() {
184 return StorageNodeType.SOURCE_LOCAL_SPECIAL;
188 public <K, V, N extends IdentifierNamespace<K, V>> V getFromLocalStorage(final Class<N> type, final K key) {
189 final V potentialLocal = getRoot().getFromLocalStorage(type, key);
190 if (potentialLocal != null) {
191 return potentialLocal;
193 for (NamespaceStorageNode importedSource : importedNamespaces) {
194 V potential = importedSource.getFromLocalStorage(type, key);
195 if (potential != null) {
204 public <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAllFromLocalStorage(final Class<N> type) {
205 final Map<K, V> potentialLocal = getRoot().getAllFromLocalStorage(type);
207 if (potentialLocal != null) {
208 return potentialLocal;
211 for (final NamespaceStorageNode importedSource : importedNamespaces) {
212 final Map<K, V> potential = importedSource.getAllFromLocalStorage(type);
214 if (potential != null) {
222 public <K, V, N extends IdentifierNamespace<K, V>> NamespaceBehaviour<K, V, N> getNamespaceBehaviour(final Class<N> type) {
223 return currentContext.getNamespaceBehaviour(type);
227 public NamespaceStorageNode getParentNamespaceStorage() {
228 return currentContext;
231 PhaseCompletionProgress tryToCompletePhase(final ModelProcessingPhase phase) throws SourceException {
232 Collection<ModifierImpl> currentPhaseModifiers = modifiers.get(phase);
234 boolean hasProgressed = tryToProgress(currentPhaseModifiers);
236 boolean phaseCompleted = root.tryToCompletePhase(phase);
238 hasProgressed = (tryToProgress(currentPhaseModifiers) | hasProgressed);
240 if (phaseCompleted && (currentPhaseModifiers.isEmpty())) {
241 finishedPhase = phase;
242 return PhaseCompletionProgress.FINISHED;
246 return PhaseCompletionProgress.PROGRESS;
248 return PhaseCompletionProgress.NO_PROGRESS;
252 private static boolean tryToProgress(final Collection<ModifierImpl> currentPhaseModifiers) {
254 Iterator<ModifierImpl> modifier = currentPhaseModifiers.iterator();
255 boolean hasProgressed = false;
256 while (modifier.hasNext()) {
257 if (modifier.next().tryApply()) {
259 hasProgressed = true;
263 return hasProgressed;
267 ModelActionBuilder newInferenceAction(final ModelProcessingPhase phase) {
268 ModifierImpl action = new ModifierImpl(phase);
269 modifiers.put(phase, action);
274 public String toString() {
275 return "SourceSpecificContext [source=" + source + ", current=" + inProgressPhase + ", finished="
276 + finishedPhase + "]";
279 SourceException failModifiers(final ModelProcessingPhase identifier) {
280 final List<SourceException> exceptions = new ArrayList<>();
281 for (ModifierImpl mod : modifiers.get(identifier)) {
284 } catch (SourceException e) {
289 final String message = String.format("Yang model processing phase %s failed", identifier);
290 if (exceptions.isEmpty()) {
291 return new InferenceException(message, root.getStatementSourceReference());
294 final InferenceException e = new InferenceException(message, root.getStatementSourceReference(),
296 final Iterator<SourceException> it = exceptions.listIterator(1);
297 while (it.hasNext()) {
298 e.addSuppressed(it.next());
304 void loadStatements() throws SourceException {
305 switch (inProgressPhase) {
307 source.writeLinkage(new StatementContextWriter(this, inProgressPhase), stmtDef());
309 case STATEMENT_DEFINITION:
310 source.writeLinkageAndStatementDefinitions(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
312 case FULL_DECLARATION:
313 source.writeFull(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
320 private static StatementDefinitionContext<?, ?, ?> resolveTypeBodyStmts(final String typeArgument) {
321 switch (typeArgument) {
322 case TypeUtils.DECIMAL64:
323 return new StatementDefinitionContext<>(new Decimal64SpecificationImpl.Definition());
324 case TypeUtils.UNION:
325 return new StatementDefinitionContext<>(new UnionSpecificationImpl.Definition());
326 case TypeUtils.ENUMERATION:
327 return new StatementDefinitionContext<>(new EnumSpecificationImpl.Definition());
328 case TypeUtils.LEAF_REF:
329 return new StatementDefinitionContext<>(new LeafrefSpecificationImpl.Definition());
331 return new StatementDefinitionContext<>(new BitsSpecificationImpl.Definition());
332 case TypeUtils.IDENTITY_REF:
333 return new StatementDefinitionContext<>(new IdentityRefSpecificationImpl.Definition());
334 case TypeUtils.INSTANCE_IDENTIFIER:
335 return new StatementDefinitionContext<>(new InstanceIdentifierSpecificationImpl.Definition());
342 private PrefixToModule prefixes() {
343 Map<String, QNameModule> prefixes = currentContext.getAllFromNamespace(PrefixToModule.class);
344 for (Map.Entry<String, QNameModule> prefix : prefixes.entrySet()) {
345 prefixToModuleMap.put(prefix.getKey(), prefix.getValue());
347 return prefixToModuleMap;
350 private QNameToStatementDefinition stmtDef() {
351 //regular YANG statements added
352 ImmutableMap<QName, StatementSupport<?, ?, ?>> definitions = currentContext.getSupportsForPhase(
353 inProgressPhase).getDefinitions();
354 for (Map.Entry<QName, StatementSupport<?, ?, ?>> entry : definitions.entrySet()) {
355 qNameToStmtDefMap.put(entry.getKey(), entry.getValue());
359 if (inProgressPhase.equals(ModelProcessingPhase.FULL_DECLARATION)) {
360 Map<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extensions = currentContext
361 .getAllFromNamespace(ExtensionNamespace.class);
362 if (extensions != null) {
363 for (Map.Entry<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extension : extensions
366 .put(QName.create(YangConstants.RFC6020_YIN_MODULE,
367 extension.getKey().getLocalName()),
368 (StatementDefinition) ((StatementContextBase<?, ?, ?>) extension
369 .getValue()).definition()
374 return qNameToStmtDefMap;