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 org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.yangtools.yang.common.MountPointLabel;
21 import org.opendaylight.yangtools.yang.data.api.schema.MountPointChild;
22 import org.opendaylight.yangtools.yang.data.api.schema.MountPointContext;
23 import org.opendaylight.yangtools.yang.data.api.schema.MountPointContextFactory;
24 import org.opendaylight.yangtools.yang.data.api.schema.MountPointContextFactory.ContainerName;
25 import org.opendaylight.yangtools.yang.data.api.schema.MountPointException;
26 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
27 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter.MountPointExtension;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
32 * YANG Schema Mount-supported data attached to either a {@code list} item or a {@code container}.
35 public final class MountPointData {
36 private static final Logger LOG = LoggerFactory.getLogger(MountPointData.class);
38 private final Map<ContainerName, MountPointChild> yangLib = new EnumMap<>(ContainerName.class);
39 private final List<MountPointChild> children = new ArrayList<>();
40 private final MountPointContextFactory contextFactory;
41 private final @NonNull MountPointLabel label;
43 private MountPointChild schemaMounts;
45 MountPointData(final MountPointLabel label, final MountPointContextFactory contextFactory) {
46 this.label = requireNonNull(label);
47 this.contextFactory = requireNonNull(contextFactory);
50 public @NonNull MountPointLabel label() {
54 public void setContainer(final @NonNull ContainerName containerName, final @NonNull MountPointChild data) {
55 final MountPointChild prev = yangLib.putIfAbsent(containerName, requireNonNull(data));
56 checkState(prev == null, "Attempted to duplicate container %s data %s with %s", containerName, prev, data);
60 public void setSchemaMounts(final @NonNull MountPointChild data) {
61 checkState(schemaMounts == null, "Attempted to reset schema-mounts from %s to %s", schemaMounts, data);
62 schemaMounts = requireNonNull(data);
66 public void addChild(final @NonNull MountPointChild data) {
67 children.add(requireNonNull(data));
70 void write(final @NonNull NormalizedNodeStreamWriter writer) throws IOException {
71 final var mountWriter = writer.extension(MountPointExtension.class);
72 if (mountWriter == null) {
73 LOG.debug("Writer {} does not support mount points, ignoring data in {}", writer, label);
77 final MountPointContext mountCtx;
79 mountCtx = contextFactory.createContext(yangLib, schemaMounts);
80 } catch (MountPointException e) {
81 throw new IOException("Failed to resolve mount point " + label, e);
83 try (NormalizedNodeStreamWriter nestedWriter = mountWriter.startMountPoint(label, mountCtx)) {
84 for (MountPointChild child : children) {
85 child.writeTo(nestedWriter, mountCtx);