2 * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.rfc7950.stmt.list;
10 import static com.google.common.base.Verify.verify;
12 import com.google.common.collect.ImmutableList;
13 import com.google.common.collect.ImmutableSet;
14 import java.util.ArrayList;
15 import java.util.HashSet;
16 import java.util.List;
17 import java.util.Optional;
19 import org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.yangtools.yang.common.QName;
21 import org.opendaylight.yangtools.yang.model.api.ElementCountConstraint;
22 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
23 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
24 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
25 import org.opendaylight.yangtools.yang.model.api.Status;
26 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
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.stmt.KeyEffectiveStatement;
30 import org.opendaylight.yangtools.yang.model.api.stmt.ListEffectiveStatement;
31 import org.opendaylight.yangtools.yang.model.api.stmt.ListStatement;
32 import org.opendaylight.yangtools.yang.model.api.stmt.OrderedByEffectiveStatement;
33 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
34 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
35 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.ChildSchemaNodeNamespace;
36 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseQNameStatementSupport;
37 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.EffectiveStatementWithFlags.FlagsBuilder;
38 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStmtUtils;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
41 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
42 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
46 abstract class AbstractListStatementSupport extends BaseQNameStatementSupport<ListStatement, ListEffectiveStatement> {
47 private static final Logger LOG = LoggerFactory.getLogger(AbstractListStatementSupport.class);
48 private static final ImmutableSet<YangStmtMapping> UNINSTANTIATED_DATATREE_STATEMENTS = ImmutableSet.of(
49 YangStmtMapping.GROUPING, YangStmtMapping.NOTIFICATION, YangStmtMapping.INPUT, YangStmtMapping.OUTPUT);
51 AbstractListStatementSupport() {
52 super(YangStmtMapping.LIST);
56 public final QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
57 return StmtContextUtils.parseIdentifier(ctx, value);
61 public final void onStatementAdded(final Mutable<QName, ListStatement, ListEffectiveStatement> stmt) {
62 stmt.coerceParentContext().addToNs(ChildSchemaNodeNamespace.class, stmt.coerceStatementArgument(), stmt);
66 protected final ListStatement createDeclared(final StmtContext<QName, ListStatement, ?> ctx,
67 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
68 return new RegularListStatement(ctx.coerceStatementArgument(), substatements);
72 protected final ListStatement createEmptyDeclared(final StmtContext<QName, ListStatement, ?> ctx) {
73 return new EmptyListStatement(ctx.coerceStatementArgument());
77 protected final ListEffectiveStatement createEffective(
78 final StmtContext<QName, ListStatement, ListEffectiveStatement> ctx,
79 final ListStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
80 final SchemaPath path = ctx.getSchemaPath().get();
81 final ListSchemaNode original = (ListSchemaNode) ctx.getOriginalCtx().map(StmtContext::buildEffective)
84 final ImmutableList<QName> keyDefinition;
85 final KeyEffectiveStatement keyStmt = findFirstStatement(substatements, KeyEffectiveStatement.class);
86 if (keyStmt != null) {
87 final List<QName> keyDefinitionInit = new ArrayList<>(keyStmt.argument().size());
88 final Set<QName> possibleLeafQNamesForKey = new HashSet<>();
89 for (final EffectiveStatement<?, ?> effectiveStatement : substatements) {
90 if (effectiveStatement instanceof LeafSchemaNode) {
91 possibleLeafQNamesForKey.add(((LeafSchemaNode) effectiveStatement).getQName());
94 for (final SchemaNodeIdentifier key : keyStmt.argument()) {
95 final QName keyQName = key.getLastComponent();
97 if (!possibleLeafQNamesForKey.contains(keyQName)) {
98 throw new InferenceException(ctx.getStatementSourceReference(),
99 "Key '%s' misses node '%s' in list '%s'", keyStmt.getDeclared().rawArgument(),
100 keyQName.getLocalName(), ctx.getStatementArgument());
102 keyDefinitionInit.add(keyQName);
105 keyDefinition = ImmutableList.copyOf(keyDefinitionInit);
107 keyDefinition = ImmutableList.of();
110 final boolean configuration = ctx.isConfiguration();
111 final int flags = new FlagsBuilder()
112 .setHistory(ctx.getCopyHistory())
113 .setStatus(findFirstArgument(substatements, StatusEffectiveStatement.class, Status.CURRENT))
114 .setConfiguration(configuration)
115 .setUserOrdered(findFirstArgument(substatements, OrderedByEffectiveStatement.class, "system")
118 if (configuration && keyDefinition.isEmpty() && isInstantied(ctx)) {
122 final Optional<ElementCountConstraint> elementCountConstraint =
123 EffectiveStmtUtils.createElementCountConstraint(substatements);
124 return original == null && !elementCountConstraint.isPresent()
125 ? new EmptyListEffectiveStatement(declared, path, flags, ctx, substatements, keyDefinition)
126 : new RegularListEffectiveStatement(declared, path, flags, ctx, substatements, keyDefinition,
127 elementCountConstraint.orElse(null), original);
130 private static void warnConfigList(final @NonNull StmtContext<QName, ListStatement, ListEffectiveStatement> ctx) {
131 final StmtContext<?, ?, ?> warnCtx = ctx.getOriginalCtx().orElse(ctx);
132 final Boolean warned = warnCtx.getFromNamespace(ConfigListWarningNamespace.class, Boolean.TRUE);
133 // Hacky check if we have issued a warning for the original statement
134 if (warned == null) {
135 verify(warnCtx instanceof Mutable, "Unexpected context %s", warnCtx);
136 ((Mutable<?, ?, ?>) warnCtx).addToNs(ConfigListWarningNamespace.class, Boolean.TRUE, Boolean.TRUE);
137 LOG.info("Configuration list {} does not define any keys in violation of RFC7950 section 7.8.2. While "
138 + "this is fine with OpenDaylight, it can cause interoperability issues with other systems "
139 + "[defined at {}]", ctx.getStatementArgument(), warnCtx.getStatementSourceReference());
143 private static boolean isInstantied(final StmtContext<?, ?, ?> ctx) {
144 for (StmtContext<?, ?, ?> parent = ctx.getParentContext(); parent != null; parent = parent.getParentContext()) {
145 if (UNINSTANTIATED_DATATREE_STATEMENTS.contains(parent.getPublicDefinition())) {
153 protected final ListEffectiveStatement createEmptyEffective(
154 final StmtContext<QName, ListStatement, ListEffectiveStatement> ctx, final ListStatement declared) {
155 return createEffective(ctx, declared, ImmutableList.of());