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.checkState;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.annotations.Beta;
14 import java.io.IOException;
15 import java.util.ArrayList;
16 import java.util.EnumMap;
17 import java.util.List;
19 import java.util.Map.Entry;
20 import java.util.Optional;
21 import org.eclipse.jdt.annotation.NonNull;
22 import org.opendaylight.yangtools.concepts.AbstractIdentifiable;
23 import org.opendaylight.yangtools.rfc8528.data.api.MountPointIdentifier;
24 import org.opendaylight.yangtools.rfc8528.data.api.MountPointNodeFactoryResolver.Inline;
25 import org.opendaylight.yangtools.rfc8528.data.api.MountPointNodeFactoryResolver.Inline.LibraryContext;
26 import org.opendaylight.yangtools.rfc8528.data.api.MountPointStreamWriter;
27 import org.opendaylight.yangtools.rfc8528.model.api.MountPointSchema;
28 import org.opendaylight.yangtools.rfc8528.model.api.MountPointSchemaResolver;
29 import org.opendaylight.yangtools.rfc8528.model.api.StaticMountPointSchemaResolver;
30 import org.opendaylight.yangtools.rfc8528.model.api.YangLibraryConstants.ContainerName;
31 import org.opendaylight.yangtools.yang.common.QName;
32 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
33 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
34 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
35 import org.opendaylight.yangtools.yang.model.parser.api.YangParserException;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
40 * YANG Schema Mount-supported data attached to either a {@code list} item or a {@code container}.
43 public final class MountPointData extends AbstractIdentifiable<MountPointIdentifier> {
44 private static final Logger LOG = LoggerFactory.getLogger(MountPointData.class);
46 private final Map<ContainerName, MountPointChild> yangLib = new EnumMap<>(ContainerName.class);
47 private final List<MountPointChild> children = new ArrayList<>();
49 MountPointData(final QName label) {
50 super(MountPointIdentifier.of(label));
53 public void setContainer(final @NonNull ContainerName containerName, final @NonNull MountPointChild data) {
54 final MountPointChild prev = yangLib.putIfAbsent(containerName, requireNonNull(data));
55 checkState(prev == null, "Attempted to duplicate container %s data %s with %s", containerName, prev, data);
59 public void addChild(final @NonNull MountPointChild data) {
60 children.add(requireNonNull(data));
63 void write(final @NonNull NormalizedNodeStreamWriter writer) throws IOException {
64 final MountPointStreamWriter mountWriter = writer.getExtensions().getInstance(MountPointStreamWriter.class);
65 if (mountWriter == null) {
66 LOG.debug("Writer {} does not support mount points, ignoring data in {}", writer, getIdentifier());
70 final Optional<MountPointSchemaResolver> optResolver = mountWriter.findMountPoint(getIdentifier());
71 if (!optResolver.isPresent()) {
72 LOG.debug("Mount point for {} is not present, ignoring it", getIdentifier());
76 final MountPointSchemaResolver resolver = optResolver.get();
77 if (resolver instanceof StaticMountPointSchemaResolver) {
78 writeTo(mountWriter, ((StaticMountPointSchemaResolver) resolver).getSchema());
79 } else if (resolver instanceof Inline) {
80 writeInline(mountWriter, (Inline) resolver);
82 throw new IOException("Unhandled resolver " + resolver);
86 private void writeInline(final @NonNull MountPointStreamWriter mountWriter, final Inline resolver)
88 for (Entry<ContainerName, MountPointChild> entry : yangLib.entrySet()) {
89 final Optional<LibraryContext> optLibContext = resolver.findSchemaForLibrary(entry.getKey());
90 if (!optLibContext.isPresent()) {
91 LOG.debug("YANG Library context for mount point {} container {} not found", getIdentifier(),
96 final LibraryContext libContext = optLibContext.get();
97 final NormalizedNode<?, ?> data = entry.getValue().normalizeTo(libContext.getLibraryContainerSchema());
98 if (!(data instanceof ContainerNode)) {
99 throw new IOException("Invalid non-container " + data);
102 final MountPointSchema mountMeta;
104 mountMeta = libContext.bindTo((ContainerNode) data);
105 } catch (YangParserException e) {
106 throw new IOException("Failed to assemble context for " + data, e);
109 writeTo(mountWriter, mountMeta);
113 LOG.warn("Failed to create a dynamic context for mount point {}, ignoring its data", getIdentifier());
116 private void writeTo(final @NonNull MountPointStreamWriter mountWriter,
117 final @NonNull MountPointSchema mountMeta) throws IOException {
118 try (NormalizedNodeStreamWriter writer = mountWriter.startMountPoint(mountMeta)) {
119 for (MountPointChild child : children) {
120 child.writeTo(writer, mountMeta.getSchemaContext());