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 com.google.common.collect.ImmutableList;
11 import java.util.ArrayList;
12 import java.util.HashSet;
13 import java.util.List;
14 import java.util.Optional;
16 import org.opendaylight.yangtools.yang.common.QName;
17 import org.opendaylight.yangtools.yang.model.api.ElementCountConstraint;
18 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
19 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
20 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
21 import org.opendaylight.yangtools.yang.model.api.Status;
22 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
23 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
24 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
25 import org.opendaylight.yangtools.yang.model.api.stmt.KeyEffectiveStatement;
26 import org.opendaylight.yangtools.yang.model.api.stmt.ListEffectiveStatement;
27 import org.opendaylight.yangtools.yang.model.api.stmt.ListStatement;
28 import org.opendaylight.yangtools.yang.model.api.stmt.OrderedByEffectiveStatement;
29 import org.opendaylight.yangtools.yang.model.api.stmt.OrderedByStatement.Ordering;
30 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
31 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
32 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.ChildSchemaNodeNamespace;
33 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseQNameStatementSupport;
34 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.EffectiveStatementWithFlags.FlagsBuilder;
35 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStmtUtils;
36 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
37 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
40 import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
41 import org.slf4j.Logger;
42 import org.slf4j.LoggerFactory;
44 abstract class AbstractListStatementSupport extends BaseQNameStatementSupport<ListStatement, ListEffectiveStatement> {
45 private static final Logger LOG = LoggerFactory.getLogger(AbstractListStatementSupport.class);
47 AbstractListStatementSupport() {
48 super(YangStmtMapping.LIST);
52 public final QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
53 return StmtContextUtils.parseIdentifier(ctx, value);
57 public final void onStatementAdded(final Mutable<QName, ListStatement, ListEffectiveStatement> stmt) {
58 stmt.coerceParentContext().addToNs(ChildSchemaNodeNamespace.class, stmt.coerceStatementArgument(), stmt);
62 protected ListStatement createDeclared(final StmtContext<QName, ListStatement, ?> ctx,
63 final ImmutableList<? extends DeclaredStatement<?>> substatements) {
64 return new RegularListStatement(ctx.coerceStatementArgument(), substatements);
68 protected ListStatement createEmptyDeclared(final StmtContext<QName, ListStatement, ?> ctx) {
69 return new EmptyListStatement(ctx.coerceStatementArgument());
73 protected final ListEffectiveStatement createEffective(
74 final StmtContext<QName, ListStatement, ListEffectiveStatement> ctx,
75 final ListStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
76 final StatementSourceReference ref = ctx.getStatementSourceReference();
77 final SchemaPath path = ctx.getSchemaPath().get();
78 final ListSchemaNode original = (ListSchemaNode) ctx.getOriginalCtx().map(StmtContext::buildEffective)
81 final ImmutableList<QName> keyDefinition;
82 final KeyEffectiveStatement keyStmt = findFirstStatement(substatements, KeyEffectiveStatement.class);
83 if (keyStmt != null) {
84 final List<QName> keyDefinitionInit = new ArrayList<>(keyStmt.argument().size());
85 final Set<QName> possibleLeafQNamesForKey = new HashSet<>();
86 for (final EffectiveStatement<?, ?> effectiveStatement : substatements) {
87 if (effectiveStatement instanceof LeafSchemaNode) {
88 possibleLeafQNamesForKey.add(((LeafSchemaNode) effectiveStatement).getQName());
91 for (final SchemaNodeIdentifier key : keyStmt.argument()) {
92 final QName keyQName = key.getLastComponent();
94 if (!possibleLeafQNamesForKey.contains(keyQName)) {
95 throw new InferenceException(ref, "Key '%s' misses node '%s' in list '%s'",
96 keyStmt.getDeclared().rawArgument(), keyQName.getLocalName(), ctx.getStatementArgument());
98 keyDefinitionInit.add(keyQName);
101 keyDefinition = ImmutableList.copyOf(keyDefinitionInit);
103 keyDefinition = ImmutableList.of();
106 final boolean configuration = ctx.isConfiguration();
107 final int flags = new FlagsBuilder()
108 .setHistory(ctx.getCopyHistory())
109 .setStatus(findFirstArgument(substatements, StatusEffectiveStatement.class, Status.CURRENT))
110 .setConfiguration(configuration)
111 .setUserOrdered(findFirstArgument(substatements, OrderedByEffectiveStatement.class, Ordering.SYSTEM)
112 .equals(Ordering.USER))
114 if (configuration && keyDefinition.isEmpty() && !inGrouping(ctx)) {
115 LOG.info("Configuration list {} does not define any keys in violation of RFC7950 section 7.8.2. While "
116 + " this is fine with OpenDaylight, it can cause interoperability issues with other systems "
117 + "[at {}]", ctx.getStatementArgument(), ref);
120 final Optional<ElementCountConstraint> elementCountConstraint =
121 EffectiveStmtUtils.createElementCountConstraint(substatements);
122 return original == null && !elementCountConstraint.isPresent()
123 ? new EmptyListEffectiveStatement(declared, path, flags, ctx, substatements, keyDefinition)
124 : new RegularListEffectiveStatement(declared, path, flags, ctx, substatements, keyDefinition,
125 elementCountConstraint.orElse(null), original);
128 private static boolean inGrouping(final StmtContext<?, ?, ?> ctx) {
129 StmtContext<?, ?, ?> parent = ctx.getParentContext();
130 while (parent != null) {
131 if (parent.getPublicDefinition() == YangStmtMapping.GROUPING) {
134 parent = parent.getParentContext();
140 protected final ListEffectiveStatement createEmptyEffective(
141 final StmtContext<QName, ListStatement, ListEffectiveStatement> ctx, final ListStatement declared) {
142 return createEffective(ctx, declared, ImmutableList.of());