2 * Copyright (c) 2019 PANTHEON.tech 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.data.util;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.annotations.Beta;
14 import com.google.common.collect.ImmutableSet;
15 import java.util.stream.Collectors;
16 import org.eclipse.jdt.annotation.NonNullByDefault;
17 import org.opendaylight.yangtools.concepts.Immutable;
18 import org.opendaylight.yangtools.rfc8528.model.api.SchemaMountConstants;
19 import org.opendaylight.yangtools.yang.common.MountPointLabel;
20 import org.opendaylight.yangtools.yang.common.QName;
21 import org.opendaylight.yangtools.yang.common.QNameModule;
22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
23 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
24 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
25 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
26 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
27 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
28 import org.opendaylight.yangtools.yang.data.api.schema.MountPointContext;
29 import org.opendaylight.yangtools.yang.data.api.schema.MountPointContextFactory;
30 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
35 * Abstract base class for MountPointContextFactory implementations, which can process RFC8525 mount point definitions.
39 public abstract class AbstractMountPointContextFactory extends AbstractDynamicMountPointContextFactory {
41 * Definition of a MountPoint, as known to RFC8528.
43 protected record MountPointDefinition(
44 MountPointLabel label,
46 // FIXME: make this return a set of XPath expressions
47 ImmutableSet<String> parentReferences) implements Immutable {
48 protected MountPointDefinition {
49 requireNonNull(parentReferences);
50 requireNonNull(label);
54 private static final Logger LOG = LoggerFactory.getLogger(AbstractMountPointContextFactory.class);
55 private static final NodeIdentifier SCHEMA_MOUNTS = NodeIdentifier.create(
56 QName.create(SchemaMountConstants.RFC8528_MODULE, "schema-mounts").intern());
57 private static final NodeIdentifier MOUNT_POINT = NodeIdentifier.create(
58 QName.create(SchemaMountConstants.RFC8528_MODULE, "mount-point").intern());
59 private static final NodeIdentifier CONFIG = NodeIdentifier.create(
60 QName.create(SchemaMountConstants.RFC8528_MODULE, "config").intern());
61 private static final NodeIdentifier MODULE = NodeIdentifier.create(
62 QName.create(SchemaMountConstants.RFC8528_MODULE, "module").intern());
63 private static final NodeIdentifier LABEL = NodeIdentifier.create(
64 QName.create(SchemaMountConstants.RFC8528_MODULE, "label").intern());
65 private static final NodeIdentifier SCHEMA_REF = NodeIdentifier.create(
66 QName.create(SchemaMountConstants.RFC8528_MODULE, "schema-ref").intern());
67 private static final NodeIdentifier INLINE = NodeIdentifier.create(
68 QName.create(SchemaMountConstants.RFC8528_MODULE, "inline").intern());
69 private static final NodeIdentifier SHARED_SCHEMA = NodeIdentifier.create(
70 QName.create(SchemaMountConstants.RFC8528_MODULE, "shared-schema").intern());
71 private static final NodeIdentifier PARENT_REFERENCE = NodeIdentifier.create(
72 QName.create(SchemaMountConstants.RFC8528_MODULE, "parent-reference").intern());
74 protected AbstractMountPointContextFactory(final MountPointLabel label) {
79 protected final MountPointContext createMountPointContext(final EffectiveModelContext schemaContext,
80 final ContainerNode mountData) {
81 checkArgument(SCHEMA_MOUNTS.equals(mountData.name()), "Unexpected top-level container %s", mountData);
83 final var mountPoint = mountData.childByArg(MOUNT_POINT);
84 if (mountPoint == null) {
85 LOG.debug("mount-point list not present in {}", mountData);
86 return MountPointContext.of(schemaContext);
88 if (!(mountPoint instanceof MapNode mapMountPoint)) {
89 throw new IllegalArgumentException("mount-point list " + mountPoint + " is not a MapNode");
92 return new ImmutableMountPointContext(schemaContext, mapMountPoint.body().stream().map(entry -> {
93 final String moduleName = entry.findChildByArg(MODULE).map(mod -> {
94 checkArgument(mod instanceof LeafNode, "Unexpected module leaf %s", mod);
95 final Object value = mod.body();
96 checkArgument(value instanceof String, "Unexpected module leaf value %s", value);
97 return (String) value;
98 }).orElseThrow(() -> new IllegalArgumentException("Mount module missing in " + entry));
99 final var it = schemaContext.findModuleStatements(moduleName).iterator();
100 checkArgument(it.hasNext(), "Failed to find a module named %s", moduleName);
101 final QNameModule module = it.next().localQNameModule();
103 return new MountPointDefinition(
104 new MountPointLabel(QName.create(module, entry.findChildByArg(LABEL).map(lbl -> {
105 checkArgument(lbl instanceof LeafNode, "Unexpected label leaf %s", lbl);
106 final Object value = lbl.body();
107 checkArgument(value instanceof String, "Unexpected label leaf value %s", value);
108 return (String) value;
109 }).orElseThrow(() -> new IllegalArgumentException("Mount module missing in " + entry)))).intern(),
110 entry.findChildByArg(CONFIG).map(cfg -> {
111 checkArgument(cfg instanceof LeafNode, "Unexpected config leaf %s", cfg);
112 final Object value = cfg.body();
113 checkArgument(value instanceof Boolean, "Unexpected config leaf value %s", cfg);
114 return (Boolean) value;
115 }).orElse(Boolean.TRUE),
116 getSchema(entry.findChildByArg(SCHEMA_REF)
117 .orElseThrow(() -> new IllegalArgumentException("Missing schema-ref choice in " + entry))));
118 }).collect(Collectors.toList()), this::createContextFactory);
121 private static ImmutableSet<String> getSchema(final DataContainerChild child) {
122 checkArgument(child instanceof ChoiceNode, "Unexpected schema-ref choice %s", child);
123 final ChoiceNode schemaRef = (ChoiceNode) child;
125 return schemaRef.findChildByArg(SHARED_SCHEMA).map(sharedSchema -> {
126 checkArgument(sharedSchema instanceof ContainerNode, "Unexpected shared-schema container %s", sharedSchema);
127 return ((ContainerNode) sharedSchema).findChildByArg(PARENT_REFERENCE)
128 // FIXME: 7.0.0: parse XPaths. Do we have enough context for that?
129 .map(parentRef -> ImmutableSet.<String>of())
130 .orElseGet(ImmutableSet::of);
132 checkArgument(schemaRef.findChildByArg(INLINE).isPresent(), "Unhandled schema-ref type in %s", schemaRef);
133 return ImmutableSet.of();
138 * Create a fresh {@link MountPointContextFactory} for a nested {@link MountPointDefinition}.
140 * @param mountPoint Mount point definition
141 * @return A new factory, dealing with mount points nested within the mount point.
143 protected abstract MountPointContextFactory createContextFactory(MountPointDefinition mountPoint);