2 * Copyright (c) 2019 Pantheon Technologies, s.r.o. 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.common;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.base.MoreObjects;
13 import com.google.common.collect.BiMap;
14 import com.google.common.collect.ImmutableBiMap;
15 import java.io.DataInput;
16 import java.io.DataOutput;
17 import java.io.IOException;
18 import java.io.Serial;
19 import org.opendaylight.yangtools.concepts.WritableObject;
22 * A BiMap-based implementation of {@link YangNamespaceContext}.
24 public final class BiMapYangNamespaceContext implements YangNamespaceContext, WritableObject {
26 private static final long serialVersionUID = 1L;
28 private final ImmutableBiMap<String, QNameModule> mapping;
30 public BiMapYangNamespaceContext(final BiMap<String, QNameModule> mapping) {
31 this.mapping = ImmutableBiMap.copyOf(mapping);
35 public QNameModule namespaceForPrefix(final String prefix) {
36 return mapping.get(requireNonNull(prefix));
40 public String prefixForNamespace(final QNameModule namespace) {
41 return mapping.inverse().get(requireNonNull(namespace));
45 public void writeTo(final DataOutput out) throws IOException {
46 out.writeInt(mapping.size());
47 for (var entry : mapping.entrySet()) {
48 out.writeUTF(entry.getKey());
49 entry.getValue().writeTo(out);
53 public static BiMapYangNamespaceContext readFrom(final DataInput in) throws IOException {
54 final int size = in.readInt();
55 final var builder = ImmutableBiMap.<String, QNameModule>builder();
56 for (int i = 0; i < size; ++i) {
57 final var prefix = in.readUTF();
58 final var namespace = QNameModule.readFrom(in);
59 builder.put(prefix, namespace);
62 return new BiMapYangNamespaceContext(builder.build());
66 public int hashCode() {
67 return mapping.hashCode();
71 public boolean equals(final Object obj) {
72 return this == obj || obj instanceof BiMapYangNamespaceContext other && mapping.equals(other.mapping);
76 public String toString() {
77 return MoreObjects.toStringHelper(this).add("mapping", mapping).toString();