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;
15 import java.util.ArrayList;
16 import java.util.Collection;
17 import java.util.Iterator;
18 import java.util.List;
20 import java.util.Map.Entry;
21 import java.util.Objects;
22 import javax.annotation.Nullable;
23 import org.opendaylight.yangtools.concepts.Mutable;
24 import org.opendaylight.yangtools.yang.common.QName;
25 import org.opendaylight.yangtools.yang.common.QNameModule;
26 import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
27 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
28 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
29 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
30 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
31 import org.opendaylight.yangtools.yang.model.api.stmt.ExtensionStatement;
32 import org.opendaylight.yangtools.yang.parser.spi.ExtensionNamespace;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.ImportedNamespaceContext;
34 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
36 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
37 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.NamespaceStorageNode;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.QNameCacheNamespace;
41 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
42 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
43 import org.opendaylight.yangtools.yang.parser.spi.source.BelongsToPrefixToModuleIdentifier;
44 import org.opendaylight.yangtools.yang.parser.spi.source.ImpPrefixToModuleIdentifier;
45 import org.opendaylight.yangtools.yang.parser.spi.source.ImpPrefixToNamespace;
46 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleIdentifierToModuleQName;
47 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModule;
48 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModuleMap;
49 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinition;
50 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinitionMap;
51 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
52 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
53 import org.opendaylight.yangtools.yang.parser.spi.source.StatementStreamSource;
54 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.BitsSpecificationImpl;
55 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Decimal64SpecificationImpl;
56 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.EnumSpecificationImpl;
57 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.IdentityRefSpecificationImpl;
58 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.InstanceIdentifierSpecificationImpl;
59 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.LeafrefSpecificationImpl;
60 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.TypeUtils;
61 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnionSpecificationImpl;
62 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnknownStatementImpl;
63 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
65 public class SourceSpecificContext implements NamespaceStorageNode, NamespaceBehaviour.Registry, Mutable {
67 public enum PhaseCompletionProgress {
73 private final StatementStreamSource source;
74 private final BuildGlobalContext currentContext;
75 private final Collection<NamespaceStorageNode> importedNamespaces = new ArrayList<>();
76 private final Multimap<ModelProcessingPhase, ModifierImpl> modifiers = HashMultimap.create();
78 private RootStatementContext<?, ?, ?> root;
80 private ModelProcessingPhase inProgressPhase;
81 private ModelProcessingPhase finishedPhase = ModelProcessingPhase.INIT;
82 private final QNameToStatementDefinitionMap qNameToStmtDefMap = new QNameToStatementDefinitionMap();
83 private final PrefixToModuleMap prefixToModuleMap = new PrefixToModuleMap();
86 SourceSpecificContext(final BuildGlobalContext currentContext, final StatementStreamSource source) {
88 this.currentContext = currentContext;
91 public boolean isEnabledSemanticVersioning(){
92 return currentContext.isEnabledSemanticVersioning();
95 ModelProcessingPhase getInProgressPhase() {
96 return inProgressPhase;
99 StatementDefinitionContext<?, ?, ?> getDefinition(final QName name) {
100 return currentContext.getStatementDefinition(name);
103 ContextBuilder<?, ?, ?> createDeclaredChild(final StatementContextBase<?, ?, ?> current, final QName name,
104 final StatementSourceReference ref) {
105 StatementDefinitionContext<?, ?, ?> def = getDefinition(name);
108 // unknown-stmts (from import, include or local-scope)
109 if (qNameToStmtDefMap.get(name) != null) {
110 final StatementContextBase<?, ?, ?> extension =
111 (StatementContextBase<?, ?, ?>) currentContext.getAllFromNamespace(ExtensionNamespace.class).get(name);
113 SourceException.throwIfNull(extension, current.getStatementSourceReference(), "Extension %s not found",
116 final QName arg = (QName) extension.getStatementArgument();
117 final QName qName = current.getFromNamespace(QNameCacheNamespace.class,
118 QName.create(arg, extension.getIdentifier().getArgument()));
120 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition(
121 getNewStatementDefinition(qName)));
124 def = resolveTypeBodyStmts(name.getLocalName());
126 } else if (current != null && current.definition().getRepresentingClass().equals(UnknownStatementImpl.class)) {
127 final QName qName = Utils.qNameFromArgument(current, name.getLocalName());
129 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition(
130 getNewStatementDefinition(qName)));
133 Preconditions.checkArgument(def != null, "Statement %s does not have type mapping defined.", name);
134 if (current == null) {
135 return createDeclaredRoot(def, ref);
137 return current.substatementBuilder(def, ref);
140 // FIXME: This should be populated differently
141 StatementDefinition getNewStatementDefinition(final QName qName) {
142 return new ModelDefinedStatementDefinition(qName);
145 @SuppressWarnings({"rawtypes", "unchecked"})
146 private ContextBuilder<?, ?, ?> createDeclaredRoot(final StatementDefinitionContext<?, ?, ?> def,
147 final StatementSourceReference ref) {
148 return new ContextBuilder(def, ref) {
151 public StatementContextBase build() {
153 root = new RootStatementContext(this, SourceSpecificContext.this);
155 Preconditions.checkState(root.getIdentifier().equals(createIdentifier()),
156 "Root statement was already defined as %s.", root.getIdentifier());
165 RootStatementContext<?, ?, ?> getRoot() {
169 DeclaredStatement<?> buildDeclared() {
170 return root.buildDeclared();
173 EffectiveStatement<?, ?> buildEffective() {
174 return root.buildEffective();
177 void startPhase(final ModelProcessingPhase phase) {
179 final ModelProcessingPhase previousPhase = phase.getPreviousPhase();
180 Preconditions.checkState(Objects.equals(previousPhase, finishedPhase));
181 Preconditions.checkState(modifiers.get(previousPhase).isEmpty());
182 inProgressPhase = phase;
186 public <K, V, N extends IdentifierNamespace<K, V>> void addToLocalStorage(final Class<N> type, final K key,
188 if (ImportedNamespaceContext.class.isAssignableFrom(type)) {
189 importedNamespaces.add((NamespaceStorageNode) value);
191 getRoot().addToLocalStorage(type, key, value);
195 public StorageNodeType getStorageNodeType() {
196 return StorageNodeType.SOURCE_LOCAL_SPECIAL;
200 public <K, V, N extends IdentifierNamespace<K, V>> V getFromLocalStorage(final Class<N> type, final K key) {
201 final V potentialLocal = getRoot().getFromLocalStorage(type, key);
202 if (potentialLocal != null) {
203 return potentialLocal;
205 for (final NamespaceStorageNode importedSource : importedNamespaces) {
206 final V potential = importedSource.getFromLocalStorage(type, key);
207 if (potential != null) {
216 public <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAllFromLocalStorage(final Class<N> type) {
217 final Map<K, V> potentialLocal = getRoot().getAllFromLocalStorage(type);
219 if (potentialLocal != null) {
220 return potentialLocal;
223 for (final NamespaceStorageNode importedSource : importedNamespaces) {
224 final Map<K, V> potential = importedSource.getAllFromLocalStorage(type);
226 if (potential != null) {
234 public <K, V, N extends IdentifierNamespace<K, V>> NamespaceBehaviour<K, V, N> getNamespaceBehaviour(
235 final Class<N> type) {
236 return currentContext.getNamespaceBehaviour(type);
240 public NamespaceStorageNode getParentNamespaceStorage() {
241 return currentContext;
244 PhaseCompletionProgress tryToCompletePhase(final ModelProcessingPhase phase) throws SourceException {
245 final Collection<ModifierImpl> currentPhaseModifiers = modifiers.get(phase);
247 boolean hasProgressed = tryToProgress(currentPhaseModifiers);
249 Preconditions.checkNotNull(this.root, "Malformed source. Valid root element is missing.");
250 final boolean phaseCompleted = root.tryToCompletePhase(phase);
252 hasProgressed = (tryToProgress(currentPhaseModifiers) | hasProgressed);
254 if (phaseCompleted && (currentPhaseModifiers.isEmpty())) {
255 finishedPhase = phase;
256 return PhaseCompletionProgress.FINISHED;
260 return PhaseCompletionProgress.PROGRESS;
262 return PhaseCompletionProgress.NO_PROGRESS;
266 private static boolean tryToProgress(final Collection<ModifierImpl> currentPhaseModifiers) {
267 boolean hasProgressed = false;
269 final Iterator<ModifierImpl> modifier = currentPhaseModifiers.iterator();
270 while (modifier.hasNext()) {
271 if (modifier.next().tryApply()) {
273 hasProgressed = true;
277 return hasProgressed;
281 ModelActionBuilder newInferenceAction(final ModelProcessingPhase phase) {
282 final ModifierImpl action = new ModifierImpl(phase);
283 modifiers.put(phase, action);
288 public String toString() {
289 return "SourceSpecificContext [source=" + source + ", current=" + inProgressPhase + ", finished="
290 + finishedPhase + "]";
293 SourceException failModifiers(final ModelProcessingPhase identifier) {
294 final List<SourceException> exceptions = new ArrayList<>();
295 for (final ModifierImpl mod : modifiers.get(identifier)) {
298 } catch (final SourceException e) {
303 final String message = String.format("Yang model processing phase %s failed", identifier);
304 if (exceptions.isEmpty()) {
305 return new InferenceException(message, root.getStatementSourceReference());
308 final InferenceException e = new InferenceException(message, root.getStatementSourceReference(),
310 final Iterator<SourceException> it = exceptions.listIterator(1);
311 while (it.hasNext()) {
312 e.addSuppressed(it.next());
318 void loadStatements() throws SourceException {
319 switch (inProgressPhase) {
320 case SOURCE_PRE_LINKAGE:
321 source.writePreLinkage(new StatementContextWriter(this, inProgressPhase), stmtDef());
324 source.writeLinkage(new StatementContextWriter(this, inProgressPhase), stmtDef(), preLinkagePrefixes());
326 case STATEMENT_DEFINITION:
327 source.writeLinkageAndStatementDefinitions(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
329 case FULL_DECLARATION:
330 source.writeFull(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
337 private static StatementDefinitionContext<?, ?, ?> resolveTypeBodyStmts(final String typeArgument) {
338 switch (typeArgument) {
339 case TypeUtils.DECIMAL64:
340 return new StatementDefinitionContext<>(new Decimal64SpecificationImpl.Definition());
341 case TypeUtils.UNION:
342 return new StatementDefinitionContext<>(new UnionSpecificationImpl.Definition());
343 case TypeUtils.ENUMERATION:
344 return new StatementDefinitionContext<>(new EnumSpecificationImpl.Definition());
345 case TypeUtils.LEAF_REF:
346 return new StatementDefinitionContext<>(new LeafrefSpecificationImpl.Definition());
348 return new StatementDefinitionContext<>(new BitsSpecificationImpl.Definition());
349 case TypeUtils.IDENTITY_REF:
350 return new StatementDefinitionContext<>(new IdentityRefSpecificationImpl.Definition());
351 case TypeUtils.INSTANCE_IDENTIFIER:
352 return new StatementDefinitionContext<>(new InstanceIdentifierSpecificationImpl.Definition());
358 private PrefixToModule preLinkagePrefixes() {
359 final PrefixToModuleMap preLinkagePrefixes = new PrefixToModuleMap(true);
360 final Map<String, URI> prefixToNamespaceMap = getAllFromLocalStorage(ImpPrefixToNamespace.class);
361 if (prefixToNamespaceMap == null) {
362 //:FIXME if it is a submodule without any import, the map is null. Handle also submodules and includes...
365 for (final Entry<String, URI> prefixToNamespace : prefixToNamespaceMap.entrySet()) {
366 preLinkagePrefixes.put(prefixToNamespace.getKey(), QNameModule.create(prefixToNamespace.getValue(), null));
369 return preLinkagePrefixes;
372 private PrefixToModule prefixes() {
373 final Map<String, ModuleIdentifier> allPrefixes = getRoot().getAllFromNamespace(ImpPrefixToModuleIdentifier
375 final Map<String, ModuleIdentifier> belongsToPrefixes = getRoot().getAllFromNamespace
376 (BelongsToPrefixToModuleIdentifier.class);
377 if (belongsToPrefixes != null) {
378 allPrefixes.putAll(belongsToPrefixes);
381 for (final Entry<String, ModuleIdentifier> stringModuleIdentifierEntry : allPrefixes.entrySet()) {
382 final QNameModule namespace = getRoot().getFromNamespace(ModuleIdentifierToModuleQName.class,
383 stringModuleIdentifierEntry.getValue());
384 prefixToModuleMap.put(stringModuleIdentifierEntry.getKey(), namespace);
386 return prefixToModuleMap;
389 private QNameToStatementDefinition stmtDef() {
390 // regular YANG statements and extension supports added
391 final ImmutableMap<QName, StatementSupport<?, ?, ?>> definitions = currentContext.getSupportsForPhase(
392 inProgressPhase).getDefinitions();
393 for (final Entry<QName, StatementSupport<?, ?, ?>> entry : definitions.entrySet()) {
394 qNameToStmtDefMap.put(entry.getKey(), entry.getValue());
398 if (inProgressPhase.equals(ModelProcessingPhase.FULL_DECLARATION)) {
399 final Map<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extensions =
400 currentContext.getAllFromNamespace(ExtensionNamespace.class);
401 if (extensions != null) {
402 for (final Entry<QName, StmtContext<?, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>>> extension :
403 extensions.entrySet()) {
404 if(qNameToStmtDefMap.get(extension.getKey()) == null) {
405 qNameToStmtDefMap.put((extension.getKey()),
406 (StatementDefinition) ((StatementContextBase<?, ?, ?>) extension.getValue()).definition()
413 return qNameToStmtDefMap;