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.QNameCacheNamespace;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
41 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModule;
42 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModuleMap;
43 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinition;
44 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinitionMap;
45 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
46 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
47 import org.opendaylight.yangtools.yang.parser.spi.source.StatementStreamSource;
48 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.BitsSpecificationImpl;
49 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Decimal64SpecificationImpl;
50 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.EnumSpecificationImpl;
51 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.IdentityRefSpecificationImpl;
52 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.InstanceIdentifierSpecificationImpl;
53 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.LeafrefSpecificationImpl;
54 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.TypeUtils;
55 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnionSpecificationImpl;
56 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnknownStatementImpl;
57 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
59 public class SourceSpecificContext implements NamespaceStorageNode, NamespaceBehaviour.Registry, Mutable {
61 public enum PhaseCompletionProgress {
67 private final StatementStreamSource source;
68 private final BuildGlobalContext currentContext;
69 private final Collection<NamespaceStorageNode> importedNamespaces = new ArrayList<>();
70 private final Multimap<ModelProcessingPhase, ModifierImpl> modifiers = HashMultimap.create();
72 private RootStatementContext<?, ?, ?> root;
74 private ModelProcessingPhase inProgressPhase;
75 private ModelProcessingPhase finishedPhase = ModelProcessingPhase.INIT;
76 private final QNameToStatementDefinitionMap qNameToStmtDefMap = new QNameToStatementDefinitionMap();
77 private final PrefixToModuleMap prefixToModuleMap = new PrefixToModuleMap();
80 SourceSpecificContext(final BuildGlobalContext currentContext, final StatementStreamSource source) {
82 this.currentContext = currentContext;
85 ModelProcessingPhase getInProgressPhase() {
86 return inProgressPhase;
89 StatementDefinitionContext<?, ?, ?> getDefinition(final QName name) {
90 return currentContext.getStatementDefinition(name);
93 ContextBuilder<?, ?, ?> createDeclaredChild(final StatementContextBase<?, ?, ?> current, final QName name, final StatementSourceReference ref) {
94 StatementDefinitionContext<?, ?, ?> def = getDefinition(name);
97 //unknown-stmts (from import, include or local-scope)
98 if (qNameToStmtDefMap.get(Utils.trimPrefix(name)) != null) {
99 QName key = Utils.qNameFromArgument(current, name.getLocalName());
101 final StatementContextBase<?,?,?> extension = (StatementContextBase<?, ?, ?>) currentContext
102 .getAllFromNamespace(ExtensionNamespace.class).get(key);
103 if (extension != null) {
104 final QName arg = (QName) ((SubstatementContext<?, ?, ?>) extension).getStatementArgument();
105 final QName qName = current.getFromNamespace(QNameCacheNamespace.class,
106 QName.create(arg, extension.getIdentifier().getArgument()));
108 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition
109 (getNewStatementDefinition(qName)));
111 throw new IllegalArgumentException("Not found unknown statement: " + name);
116 def = resolveTypeBodyStmts(name.getLocalName());
119 else if (current != null && current.definition().getRepresentingClass().equals(UnknownStatementImpl.class)) {
120 QName qName = Utils.qNameFromArgument(current, name.getLocalName());
122 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition
123 (getNewStatementDefinition(qName)));
126 Preconditions.checkArgument(def != null, "Statement %s does not have type mapping defined.", name);
127 if (current == null) {
128 return createDeclaredRoot(def, ref);
130 return current.substatementBuilder(def, ref);
133 // FIXME: This should be populated differently
134 StatementDefinition getNewStatementDefinition(final QName qName) {
135 return new ModelDefinedStatementDefinition(qName);
138 @SuppressWarnings({"rawtypes", "unchecked"})
139 private ContextBuilder<?, ?, ?> createDeclaredRoot(final StatementDefinitionContext<?, ?, ?> def, final StatementSourceReference ref) {
140 return new ContextBuilder(def, ref) {
143 public StatementContextBase build() throws SourceException {
145 root = new RootStatementContext(this, SourceSpecificContext.this);
147 Preconditions.checkState(root.getIdentifier().equals(createIdentifier()), "Root statement was already defined as %s.", root.getIdentifier());
156 RootStatementContext<?, ?, ?> getRoot() {
160 DeclaredStatement<?> buildDeclared() {
161 return root.buildDeclared();
164 EffectiveStatement<?, ?> buildEffective() {
165 return root.buildEffective();
168 void startPhase(final ModelProcessingPhase phase) {
169 @Nullable ModelProcessingPhase previousPhase = phase.getPreviousPhase();
170 Preconditions.checkState(Objects.equals(previousPhase, finishedPhase));
171 Preconditions.checkState(modifiers.get(previousPhase).isEmpty());
172 inProgressPhase = phase;
176 public <K, V, N extends IdentifierNamespace<K, V>> void addToLocalStorage(final Class<N> type, final K key, final V value) {
177 if (ImportedNamespaceContext.class.isAssignableFrom(type)) {
178 importedNamespaces.add((NamespaceStorageNode) value);
180 getRoot().addToLocalStorage(type, key, value);
184 public StorageNodeType getStorageNodeType() {
185 return StorageNodeType.SOURCE_LOCAL_SPECIAL;
189 public <K, V, N extends IdentifierNamespace<K, V>> V getFromLocalStorage(final Class<N> type, final K key) {
190 final V potentialLocal = getRoot().getFromLocalStorage(type, key);
191 if (potentialLocal != null) {
192 return potentialLocal;
194 for (NamespaceStorageNode importedSource : importedNamespaces) {
195 V potential = importedSource.getFromLocalStorage(type, key);
196 if (potential != null) {
205 public <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAllFromLocalStorage(final Class<N> type) {
206 final Map<K, V> potentialLocal = getRoot().getAllFromLocalStorage(type);
208 if (potentialLocal != null) {
209 return potentialLocal;
212 for (final NamespaceStorageNode importedSource : importedNamespaces) {
213 final Map<K, V> potential = importedSource.getAllFromLocalStorage(type);
215 if (potential != null) {
223 public <K, V, N extends IdentifierNamespace<K, V>> NamespaceBehaviour<K, V, N> getNamespaceBehaviour(final Class<N> type) {
224 return currentContext.getNamespaceBehaviour(type);
228 public NamespaceStorageNode getParentNamespaceStorage() {
229 return currentContext;
232 PhaseCompletionProgress tryToCompletePhase(final ModelProcessingPhase phase) throws SourceException {
233 Collection<ModifierImpl> currentPhaseModifiers = modifiers.get(phase);
235 boolean hasProgressed = tryToProgress(currentPhaseModifiers);
237 boolean phaseCompleted = root.tryToCompletePhase(phase);
239 hasProgressed = (tryToProgress(currentPhaseModifiers) | hasProgressed);
241 if (phaseCompleted && (currentPhaseModifiers.isEmpty())) {
242 finishedPhase = phase;
243 return PhaseCompletionProgress.FINISHED;
247 return PhaseCompletionProgress.PROGRESS;
249 return PhaseCompletionProgress.NO_PROGRESS;
253 private static boolean tryToProgress(final Collection<ModifierImpl> currentPhaseModifiers) {
255 Iterator<ModifierImpl> modifier = currentPhaseModifiers.iterator();
256 boolean hasProgressed = false;
257 while (modifier.hasNext()) {
258 if (modifier.next().tryApply()) {
260 hasProgressed = true;
264 return hasProgressed;
268 ModelActionBuilder newInferenceAction(final ModelProcessingPhase phase) {
269 ModifierImpl action = new ModifierImpl(phase);
270 modifiers.put(phase, action);
275 public String toString() {
276 return "SourceSpecificContext [source=" + source + ", current=" + inProgressPhase + ", finished="
277 + finishedPhase + "]";
280 SourceException failModifiers(final ModelProcessingPhase identifier) {
281 final List<SourceException> exceptions = new ArrayList<>();
282 for (ModifierImpl mod : modifiers.get(identifier)) {
285 } catch (SourceException e) {
290 final String message = String.format("Yang model processing phase %s failed", identifier);
291 if (exceptions.isEmpty()) {
292 return new InferenceException(message, root.getStatementSourceReference());
295 final InferenceException e = new InferenceException(message, root.getStatementSourceReference(),
297 final Iterator<SourceException> it = exceptions.listIterator(1);
298 while (it.hasNext()) {
299 e.addSuppressed(it.next());
305 void loadStatements() throws SourceException {
306 switch (inProgressPhase) {
308 source.writeLinkage(new StatementContextWriter(this, inProgressPhase), stmtDef());
310 case STATEMENT_DEFINITION:
311 source.writeLinkageAndStatementDefinitions(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
313 case FULL_DECLARATION:
314 source.writeFull(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
321 private static StatementDefinitionContext<?, ?, ?> resolveTypeBodyStmts(final String typeArgument) {
322 switch (typeArgument) {
323 case TypeUtils.DECIMAL64:
324 return new StatementDefinitionContext<>(new Decimal64SpecificationImpl.Definition());
325 case TypeUtils.UNION:
326 return new StatementDefinitionContext<>(new UnionSpecificationImpl.Definition());
327 case TypeUtils.ENUMERATION:
328 return new StatementDefinitionContext<>(new EnumSpecificationImpl.Definition());
329 case TypeUtils.LEAF_REF:
330 return new StatementDefinitionContext<>(new LeafrefSpecificationImpl.Definition());
332 return new StatementDefinitionContext<>(new BitsSpecificationImpl.Definition());
333 case TypeUtils.IDENTITY_REF:
334 return new StatementDefinitionContext<>(new IdentityRefSpecificationImpl.Definition());
335 case TypeUtils.INSTANCE_IDENTIFIER:
336 return new StatementDefinitionContext<>(new InstanceIdentifierSpecificationImpl.Definition());
343 private PrefixToModule prefixes() {
344 Map<String, QNameModule> prefixes = currentContext.getAllFromNamespace(PrefixToModule.class);
345 for (Map.Entry<String, QNameModule> prefix : prefixes.entrySet()) {
346 prefixToModuleMap.put(prefix.getKey(), prefix.getValue());
348 return prefixToModuleMap;
351 private QNameToStatementDefinition stmtDef() {
352 //regular YANG statements added
353 ImmutableMap<QName, StatementSupport<?, ?, ?>> definitions = currentContext.getSupportsForPhase(
354 inProgressPhase).getDefinitions();
355 for (Map.Entry<QName, StatementSupport<?, ?, ?>> entry : definitions.entrySet()) {
356 qNameToStmtDefMap.put(entry.getKey(), entry.getValue());
360 if (inProgressPhase.equals(ModelProcessingPhase.FULL_DECLARATION)) {
361 Map<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extensions = currentContext
362 .getAllFromNamespace(ExtensionNamespace.class);
363 if (extensions != null) {
364 for (Map.Entry<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extension : extensions
367 .put(QName.create(YangConstants.RFC6020_YIN_MODULE,
368 extension.getKey().getLocalName()),
369 (StatementDefinition) ((StatementContextBase<?, ?, ?>) extension
370 .getValue()).definition()
375 return qNameToStmtDefMap;