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.rfc6020;
10 import static org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator.MAX;
11 import com.google.common.base.Preconditions;
12 import java.util.Collection;
13 import java.util.regex.Pattern;
14 import javax.annotation.Nonnull;
15 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
16 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
17 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentStatement;
18 import org.opendaylight.yangtools.yang.model.api.stmt.DataDefinitionStatement;
19 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
20 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
21 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
22 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
23 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
24 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
25 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
30 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
31 import org.opendaylight.yangtools.yang.parser.spi.source.StmtOrderingNamespace;
32 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
33 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.AugmentEffectiveStatementImpl;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
37 public class AugmentStatementImpl extends AbstractDeclaredStatement<SchemaNodeIdentifier> implements AugmentStatement {
38 private static final Logger LOG = LoggerFactory.getLogger(AugmentStatementImpl.class);
39 private static final Pattern PATH_REL_PATTERN1 = Pattern.compile("\\.\\.?\\s*/(.+)");
40 private static final Pattern PATH_REL_PATTERN2 = Pattern.compile("//.*");
41 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator
42 .builder(Rfc6020Mapping.AUGMENT)
43 .add(Rfc6020Mapping.ANYXML, 0, MAX)
44 .add(Rfc6020Mapping.CASE, 0, MAX)
45 .add(Rfc6020Mapping.CHOICE, 0, MAX)
46 .add(Rfc6020Mapping.CONTAINER, 0, MAX)
47 .add(Rfc6020Mapping.DESCRIPTION, 0, 1)
48 .add(Rfc6020Mapping.IF_FEATURE, 0, MAX)
49 .add(Rfc6020Mapping.LEAF, 0, MAX)
50 .add(Rfc6020Mapping.LEAF_LIST, 0, MAX)
51 .add(Rfc6020Mapping.LIST, 0, MAX)
52 .add(Rfc6020Mapping.REFERENCE, 0, 1)
53 .add(Rfc6020Mapping.STATUS, 0, 1)
54 .add(Rfc6020Mapping.USES, 0, MAX)
55 .add(Rfc6020Mapping.WHEN, 0, 1)
58 protected AugmentStatementImpl(final StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> context) {
62 public static class Definition extends
63 AbstractStatementSupport<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> {
66 super(Rfc6020Mapping.AUGMENT);
70 public SchemaNodeIdentifier parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
71 Preconditions.checkArgument(!PATH_REL_PATTERN1.matcher(value).matches()
72 && !PATH_REL_PATTERN2.matcher(value).matches(),
73 "An argument for augment can be only absolute path; or descendant if used in uses");
75 return Utils.nodeIdentifierFromPath(ctx, value);
79 public AugmentStatement createDeclared(
80 final StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> ctx) {
81 return new AugmentStatementImpl(ctx);
85 public EffectiveStatement<SchemaNodeIdentifier, AugmentStatement> createEffective(
86 final StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> ctx) {
87 return new AugmentEffectiveStatementImpl(ctx);
91 public void onFullDefinitionDeclared(
92 final StmtContext.Mutable<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> augmentNode)
93 throws SourceException {
94 SUBSTATEMENT_VALIDATOR.validate(augmentNode);
96 if (StmtContextUtils.isInExtensionBody(augmentNode)) {
100 final ModelActionBuilder augmentAction = augmentNode.newInferenceAction(
101 ModelProcessingPhase.EFFECTIVE_MODEL);
102 final ModelActionBuilder.Prerequisite<StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>>> sourceCtxPrereq =
103 augmentAction.requiresCtx(augmentNode, ModelProcessingPhase.EFFECTIVE_MODEL);
104 final Prerequisite<Mutable<?, ?, EffectiveStatement<?, ?>>> target =
105 augmentAction.mutatesEffectiveCtx(getSearchRoot(augmentNode), SchemaNodeIdentifierBuildNamespace.class, augmentNode.getStatementArgument());
106 augmentAction.apply(new ModelActionBuilder.InferenceAction() {
109 public void apply() {
110 final StatementContextBase<?, ?, ?> augmentTargetCtx = (StatementContextBase<?, ?, ?>) target.get();
111 if (!AugmentUtils.isSupportedAugmentTarget(augmentTargetCtx) || StmtContextUtils.isInExtensionBody(augmentTargetCtx)) {
112 augmentNode.setIsSupportedToBuildEffective(false);
116 // FIXME: this is a workaround for models which augment a node which is added via an extension
117 // which we do not handle. This needs to be reworked in terms of unknown schema nodes.
118 final StatementContextBase<?, ?, ?> augmentSourceCtx = (StatementContextBase<?, ?, ?>) augmentNode;
120 AugmentUtils.copyFromSourceToTarget(augmentSourceCtx, augmentTargetCtx);
121 augmentTargetCtx.addEffectiveSubstatement(augmentSourceCtx);
122 updateAugmentOrder(augmentSourceCtx);
123 } catch (SourceException e) {
124 LOG.debug("Failed to add augmentation %s defined at {}",
125 augmentSourceCtx.getStatementSourceReference(), e);
129 private void updateAugmentOrder(final StatementContextBase<?, ?, ?> augmentSourceCtx) {
130 Integer currentOrder = augmentSourceCtx.getFromNamespace(StmtOrderingNamespace.class,
131 Rfc6020Mapping.AUGMENT);
132 if (currentOrder == null) {
138 augmentSourceCtx.setOrder(currentOrder);
139 augmentSourceCtx.addToNs(StmtOrderingNamespace.class, Rfc6020Mapping.AUGMENT, currentOrder);
143 public void prerequisiteFailed(final Collection<? extends ModelActionBuilder.Prerequisite<?>> failed) {
144 throw new InferenceException(augmentNode.getStatementSourceReference(),
145 "Augment target '%s' not found", augmentNode.getStatementArgument());
150 private static Mutable<?, ?, ?> getSearchRoot(final Mutable<?, ?, ?> augmentContext) {
151 Mutable<?, ?, ?> parent = augmentContext.getParentContext();
152 // Augment is in uses - we need to augment instantiated nodes in parent.
153 if (Rfc6020Mapping.USES.equals(parent.getPublicDefinition())) {
154 return parent.getParentContext();
162 public SchemaNodeIdentifier getTargetNode() {
167 public Collection<? extends DataDefinitionStatement> getDataDefinitions() {
168 return allDeclared(DataDefinitionStatement.class);