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;
18 import java.util.Objects;
19 import javax.annotation.Nullable;
20 import org.opendaylight.yangtools.concepts.Mutable;
21 import org.opendaylight.yangtools.yang.common.QName;
22 import org.opendaylight.yangtools.yang.common.QNameModule;
23 import org.opendaylight.yangtools.yang.common.YangConstants;
24 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
25 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
26 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
27 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
28 import org.opendaylight.yangtools.yang.parser.spi.ExtensionNamespace;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.ImportedNamespaceContext;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour;
34 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.NamespaceStorageNode;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
36 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
37 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModule;
38 import org.opendaylight.yangtools.yang.parser.spi.source.PrefixToModuleMap;
39 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinition;
40 import org.opendaylight.yangtools.yang.parser.spi.source.QNameToStatementDefinitionMap;
41 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
42 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
43 import org.opendaylight.yangtools.yang.parser.spi.source.StatementStreamSource;
44 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase.ContextBuilder;
45 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.UnknownStatementImpl;
46 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
48 public class SourceSpecificContext implements NamespaceStorageNode, NamespaceBehaviour.Registry, Mutable {
50 public enum PhaseCompletionProgress {
56 private final StatementStreamSource source;
57 private final BuildGlobalContext currentContext;
58 private final Collection<NamespaceStorageNode> importedNamespaces = new ArrayList<>();
59 private final Multimap<ModelProcessingPhase, ModifierImpl> modifiers = HashMultimap.create();
61 private RootStatementContext<?,?, ?> root;
63 private ModelProcessingPhase inProgressPhase;
64 private ModelProcessingPhase finishedPhase;
65 private final QNameToStatementDefinitionMap qNameToStmtDefMap = new QNameToStatementDefinitionMap();
66 private final PrefixToModuleMap prefixToModuleMap = new PrefixToModuleMap();
69 SourceSpecificContext(final BuildGlobalContext currentContext,final StatementStreamSource source) {
71 this.currentContext = currentContext;
74 StatementDefinitionContext<?,?,?> getDefinition(final QName name) {
75 return currentContext.getStatementDefinition(name);
78 ContextBuilder<?, ?, ?> createDeclaredChild(final StatementContextBase<?, ?, ?> current, final QName name, final StatementSourceReference ref) {
79 StatementDefinitionContext<?,?,?> def = getDefinition(name);
83 if (Utils.isValidStatementDefinition(prefixToModuleMap, qNameToStmtDefMap, name)) {
84 def = new StatementDefinitionContext<>(new UnknownStatementImpl.Definition(qNameToStmtDefMap.get(Utils.trimPrefix(name))));
88 Preconditions.checkArgument(def != null, "Statement %s does not have type mapping defined.", name);
90 return createDeclaredRoot(def,ref);
92 return current.substatementBuilder(def, ref);
95 @SuppressWarnings({ "rawtypes", "unchecked" })
96 private ContextBuilder<?,?, ?> createDeclaredRoot(final StatementDefinitionContext<?,?,?> def, final StatementSourceReference ref) {
97 return new ContextBuilder(def,ref) {
100 public StatementContextBase build() throws SourceException {
102 root = new RootStatementContext(this, SourceSpecificContext.this);
104 Preconditions.checkState(root.getIdentifier().equals(getIdentifier()), "Root statement was already defined as %s.", root.getIdentifier());
113 RootStatementContext<?,?,?> getRoot() {
117 DeclaredStatement<?> buildDeclared() {
118 return root.buildDeclared();
121 EffectiveStatement<?,?> buildEffective() {
122 return root.buildEffective();
125 void startPhase(final ModelProcessingPhase phase) {
126 @Nullable ModelProcessingPhase previousPhase = phase.getPreviousPhase();
127 Preconditions.checkState(Objects.equals(previousPhase, finishedPhase));
128 Preconditions.checkState(modifiers.get(previousPhase).isEmpty());
129 inProgressPhase = phase;
133 public <K, V, N extends IdentifierNamespace<K, V>> void addToLocalStorage(final Class<N> type, final K key, final V value) {
134 if(ImportedNamespaceContext.class.isAssignableFrom(type)) {
135 importedNamespaces.add((NamespaceStorageNode) value);
137 getRoot().addToLocalStorage(type, key, value);
141 public StorageNodeType getStorageNodeType() {
142 return StorageNodeType.SOURCE_LOCAL_SPECIAL;
146 public <K, V, N extends IdentifierNamespace<K, V>> V getFromLocalStorage(final Class<N> type, final K key) {
147 final V potentialLocal = getRoot().getFromLocalStorage(type, key);
148 if(potentialLocal != null) {
149 return potentialLocal;
151 for(NamespaceStorageNode importedSource : importedNamespaces) {
152 V potential = importedSource.getFromLocalStorage(type, key);
153 if(potential != null) {
161 public <K, V, N extends IdentifierNamespace<K, V>> NamespaceBehaviour<K, V, N> getNamespaceBehaviour(final Class<N> type) {
162 return currentContext.getNamespaceBehaviour(type);
166 public NamespaceStorageNode getParentNamespaceStorage() {
167 return currentContext;
170 PhaseCompletionProgress tryToCompletePhase(final ModelProcessingPhase phase) throws SourceException {
171 Collection<ModifierImpl> currentPhaseModifiers = modifiers.get(phase);
173 boolean hasProgressed = hasProgress(currentPhaseModifiers);
175 boolean phaseCompleted = root.tryToCompletePhase(phase);
177 hasProgressed = (hasProgress(currentPhaseModifiers) | hasProgressed);
179 if(phaseCompleted && (currentPhaseModifiers.isEmpty())) {
180 finishedPhase = phase;
181 return PhaseCompletionProgress.FINISHED;
185 return PhaseCompletionProgress.PROGRESS;
187 return PhaseCompletionProgress.NO_PROGRESS;
191 private static boolean hasProgress(final Collection<ModifierImpl> currentPhaseModifiers) {
193 Iterator<ModifierImpl> modifier = currentPhaseModifiers.iterator();
194 boolean hasProgressed = false;
195 while(modifier.hasNext()) {
196 if(modifier.next().isApplied()) {
198 hasProgressed = true;
202 return hasProgressed;
206 ModelActionBuilder newInferenceAction(final ModelProcessingPhase phase) {
207 ModifierImpl action = new ModifierImpl(phase);
208 modifiers.put(phase, action);
213 public String toString() {
214 return "SourceSpecificContext [source=" + source + ", current=" + inProgressPhase + ", finished="
215 + finishedPhase + "]";
218 SourceException failModifiers(final ModelProcessingPhase identifier) {
219 InferenceException sourceEx = new InferenceException("Fail to infer source relationships", root.getStatementSourceReference());
222 for(ModifierImpl mod : modifiers.get(identifier)) {
225 } catch (SourceException e) {
226 sourceEx.addSuppressed(e);
232 void loadStatements() throws SourceException {
233 switch (inProgressPhase) {
235 source.writeLinkage(new StatementContextWriter(this, inProgressPhase),stmtDef());
237 case STATEMENT_DEFINITION:
238 source.writeLinkageAndStatementDefinitions(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
240 case FULL_DECLARATION:
241 source.writeFull(new StatementContextWriter(this, inProgressPhase), stmtDef(), prefixes());
248 private PrefixToModule prefixes() {
249 Map<String, QNameModule> prefixes = (Map<String, QNameModule>) currentContext.getAllFromNamespace(PrefixToModule.class);
250 for (Map.Entry<String, QNameModule> prefix : prefixes.entrySet()) {
251 prefixToModuleMap.put(prefix.getKey(), prefix.getValue());
253 return prefixToModuleMap;
256 private QNameToStatementDefinition stmtDef() {
257 //regular YANG statements added
258 ImmutableMap<QName, StatementSupport<?, ?, ?>> definitions = currentContext.getSupportsForPhase(
259 inProgressPhase).getDefinitions();
260 for (Map.Entry<QName, StatementSupport<?,?,?>> entry : definitions.entrySet()) {
261 qNameToStmtDefMap.put(entry.getKey(), entry.getValue());
265 if (inProgressPhase.equals(ModelProcessingPhase.FULL_DECLARATION)) {
266 Map<QName, SubstatementContext<?, ?, ?>> extensions = (Map<QName, SubstatementContext<?, ?, ?>>) currentContext.getAllFromNamespace(ExtensionNamespace.class);
267 if (extensions != null) {
268 for (Map.Entry<QName, SubstatementContext<?, ?, ?>> extension : extensions.entrySet()) {
269 qNameToStmtDefMap.put(new QName(YangConstants.RFC6020_YIN_NAMESPACE, extension.getKey().getLocalName()), (StatementDefinition) extension.getValue().definition().getFactory());
273 return qNameToStmtDefMap;