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.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.base.Verify;
13 import java.util.Collection;
14 import java.util.Objects;
15 import org.opendaylight.yangtools.yang.common.QName;
16 import org.opendaylight.yangtools.yang.common.QNameModule;
17 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
18 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
19 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
20 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentStatement;
21 import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceStatement;
22 import org.opendaylight.yangtools.yang.model.api.stmt.ConfigStatement;
23 import org.opendaylight.yangtools.yang.model.api.stmt.KeyStatement;
24 import org.opendaylight.yangtools.yang.model.api.stmt.RefineStatement;
25 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
26 import org.opendaylight.yangtools.yang.model.api.stmt.UsesStatement;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.NamespaceStorageNode;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.Registry;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.QNameCacheNamespace;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
33 import org.opendaylight.yangtools.yang.parser.spi.source.AugmentToChoiceNamespace;
34 import org.opendaylight.yangtools.yang.parser.spi.validation.ValidationBundlesNamespace;
35 import org.opendaylight.yangtools.yang.parser.spi.validation.ValidationBundlesNamespace.ValidationBundleType;
36 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.GroupingUtils;
37 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
39 final class SubstatementContext<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>> extends
40 StatementContextBase<A, D, E> {
42 private final StatementContextBase<?, ?, ?> parent;
43 private final A argument;
44 private volatile SchemaPath schemaPath;
46 SubstatementContext(final StatementContextBase<?, ?, ?> parent, final ContextBuilder<A, D, E> builder) {
48 this.parent = Preconditions.checkNotNull(parent, "Parent must not be null");
49 this.argument = builder.getDefinition().parseArgumentValue(this, builder.getRawArgument());
52 @SuppressWarnings("unchecked")
53 SubstatementContext(final SubstatementContext<A, D, E> original, final QNameModule newQNameModule,
54 final StatementContextBase<?, ?, ?> newParent, final TypeOfCopy typeOfCopy) {
56 this.parent = newParent;
58 if (newQNameModule != null) {
59 if (original.argument instanceof QName) {
60 final QName originalQName = (QName) original.argument;
61 this.argument = (A) getFromNamespace(QNameCacheNamespace.class,
62 QName.create(newQNameModule, originalQName.getLocalName()));
63 } else if (StmtContextUtils.producesDeclared(original, KeyStatement.class)) {
64 this.argument = (A) StmtContextUtils.replaceModuleQNameForKey(
65 (StmtContext<Collection<SchemaNodeIdentifier>, KeyStatement, ?>) original, newQNameModule);
67 this.argument = original.argument;
70 this.argument = original.argument;
74 private void copyDeclaredStmts(final SubstatementContext<A, D, E> original, final QNameModule newQNameModule,
75 final TypeOfCopy typeOfCopy) {
76 final Collection<? extends StatementContextBase<?, ?, ?>> originalDeclaredSubstatements = original
77 .declaredSubstatements();
78 for (final StatementContextBase<?, ?, ?> stmtContext : originalDeclaredSubstatements) {
79 if (!StmtContextUtils.areFeaturesSupported(stmtContext)) {
82 if (GroupingUtils.needToCopyByUses(stmtContext)) {
83 final StatementContextBase<?, ?, ?> copy = stmtContext.createCopy(newQNameModule, this, typeOfCopy);
84 this.addEffectiveSubstatement(copy);
85 } else if (GroupingUtils.isReusedByUses(stmtContext)) {
86 this.addEffectiveSubstatement(stmtContext);
91 private void copyEffectiveStmts(final SubstatementContext<A, D, E> original, final QNameModule newQNameModule,
92 final TypeOfCopy typeOfCopy) {
93 final Collection<? extends StatementContextBase<?, ?, ?>> originalEffectiveSubstatements = original
94 .effectiveSubstatements();
95 for (final StatementContextBase<?, ?, ?> stmtContext : originalEffectiveSubstatements) {
96 if (GroupingUtils.needToCopyByUses(stmtContext)) {
97 final StatementContextBase<?, ?, ?> copy = stmtContext.createCopy(newQNameModule, this, typeOfCopy);
98 this.addEffectiveSubstatement(copy);
99 } else if (GroupingUtils.isReusedByUses(stmtContext)) {
100 this.addEffectiveSubstatement(stmtContext);
106 public StatementContextBase<?, ?, ?> getParentContext() {
111 public NamespaceStorageNode getParentNamespaceStorage() {
116 public Registry getBehaviourRegistry() {
117 return parent.getBehaviourRegistry();
121 public RootStatementContext<?, ?, ?> getRoot() {
122 return parent.getRoot();
126 public A getStatementArgument() {
131 public StatementContextBase<?, ?, ?> createCopy(final StatementContextBase<?, ?, ?> newParent,
132 final TypeOfCopy typeOfCopy) {
133 return createCopy(null, newParent, typeOfCopy);
137 public StatementContextBase<A, D, E> createCopy(final QNameModule newQNameModule,
138 final StatementContextBase<?, ?, ?> newParent, final TypeOfCopy typeOfCopy) {
139 final SubstatementContext<A, D, E> copy = new SubstatementContext<>(this, newQNameModule, newParent, typeOfCopy);
141 copy.addAllToCopyHistory(this.getCopyHistory());
142 copy.addToCopyHistory(typeOfCopy);
144 if (this.getOriginalCtx() != null) {
145 copy.setOriginalCtx(this.getOriginalCtx());
147 copy.setOriginalCtx(this);
150 definition().onStatementAdded(copy);
152 copy.copyDeclaredStmts(this, newQNameModule, typeOfCopy);
153 copy.copyEffectiveStmts(this, newQNameModule, typeOfCopy);
157 private boolean isSupportedAsShorthandCase() {
158 final Collection<?> supportedCaseShorthands = getFromNamespace(ValidationBundlesNamespace.class,
159 ValidationBundleType.SUPPORTED_CASE_SHORTHANDS);
160 return supportedCaseShorthands == null || supportedCaseShorthands.contains(getPublicDefinition());
163 private SchemaPath createSchemaPath() {
164 final Optional<SchemaPath> maybeParentPath = parent.getSchemaPath();
165 Verify.verify(maybeParentPath.isPresent(), "Parent %s does not have a SchemaPath", parent);
166 final SchemaPath parentPath = maybeParentPath.get();
168 if (argument instanceof QName) {
169 final QName qname = (QName) argument;
170 if (StmtContextUtils.producesDeclared(this, UsesStatement.class)) {
171 return maybeParentPath.orNull();
174 final SchemaPath path;
175 if ((StmtContextUtils.producesDeclared(getParentContext(), ChoiceStatement.class)
176 || Boolean.TRUE.equals(parent.getFromNamespace(AugmentToChoiceNamespace.class, parent)))
177 && isSupportedAsShorthandCase()) {
178 path = parentPath.createChild(qname);
182 return path.createChild(qname);
184 if (argument instanceof String) {
185 // FIXME: This may yield illegal argument exceptions
186 final StatementContextBase<?, ?, ?> originalCtx = getOriginalCtx();
187 final QName qname = (originalCtx != null) ? Utils.qNameFromArgument(originalCtx, (String) argument) : Utils
188 .qNameFromArgument(this, (String) argument);
189 return parentPath.createChild(qname);
191 if (argument instanceof SchemaNodeIdentifier
192 && (StmtContextUtils.producesDeclared(this, AugmentStatement.class) || StmtContextUtils
193 .producesDeclared(this, RefineStatement.class))) {
195 return parentPath.createChild(((SchemaNodeIdentifier) argument).getPathFromRoot());
197 if (Utils.isUnknownNode(this)) {
198 return parentPath.createChild(getPublicDefinition().getStatementName());
201 // FIXME: this does not look right
202 return maybeParentPath.orNull();
206 public Optional<SchemaPath> getSchemaPath() {
207 SchemaPath local = schemaPath;
209 synchronized (this) {
212 local = createSchemaPath();
219 return Optional.fromNullable(local);
223 public boolean isRootContext() {
228 public boolean isConfiguration() {
229 final StmtContext<Boolean, ?, ?> configStatement = StmtContextUtils.findFirstSubstatement(this,
230 ConfigStatement.class);
233 * If "config" statement is not specified, the default is the same as
234 * the parent schema node's "config" value.
236 if (configStatement == null) {
237 return parent.isConfiguration();
241 * If a parent node has "config" set to "true", the node underneath it
242 * can have "config" set to "true" or "false".
244 if (parent.isConfiguration()) {
245 return configStatement.getStatementArgument();
249 * If a parent node has "config" set to "false", no node underneath it
250 * can have "config" set to "true", therefore only "false" is permitted.
252 if (!configStatement.getStatementArgument()) {
256 throw new InferenceException(
257 "Parent node has config statement set to false, therefore no node underneath it can have config set to true",
258 getStatementSourceReference());
262 public boolean isEnabledSemanticVersioning() {
263 return parent.isEnabledSemanticVersioning();