2 * Copyright (c) 2015 Cisco Systems, Inc. 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.impl.codec;
10 import com.google.common.annotations.Beta;
11 import com.google.common.base.Joiner;
12 import com.google.common.base.Optional;
13 import com.google.common.base.Preconditions;
14 import com.google.common.base.Splitter;
15 import com.google.common.collect.Collections2;
16 import com.google.common.collect.ImmutableSet;
17 import java.util.ArrayList;
18 import java.util.List;
20 import org.opendaylight.yangtools.yang.data.api.codec.BitsCodec;
21 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
22 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
25 * Do not use this class outside of yangtools, its presence does not fall into the API stability contract.
28 public final class BitsStringCodec extends TypeDefinitionAwareCodec<Set<String>, BitsTypeDefinition>
29 implements BitsCodec<String> {
31 private static final Joiner JOINER = Joiner.on(" ").skipNulls();
32 private static final Splitter SPLITTER = Splitter.on(' ').omitEmptyStrings().trimResults();
34 private final Set<String> validBits;
36 @SuppressWarnings("unchecked")
37 private BitsStringCodec(final Optional<BitsTypeDefinition> typeDef) {
38 super(typeDef, (Class<Set<String>>) ((Class<?>) Set.class));
39 if (typeDef.isPresent()) {
40 validBits = ImmutableSet.copyOf(Collections2.transform(typeDef.get().getBits(), Bit::getName));
46 public static BitsStringCodec from(final BitsTypeDefinition type) {
47 return new BitsStringCodec(Optional.of(type));
51 public String serialize(final Set<String> data) {
52 return data == null ? "" : JOINER.join(data);
56 public Set<String> deserialize(final String stringRepresentation) {
57 if (stringRepresentation == null) {
58 return ImmutableSet.of();
61 final Set<String> strings = ImmutableSet.copyOf(SPLITTER.split(stringRepresentation));
62 if (validBits == null) {
63 // No schema available, use what we have
67 // Normalize strings to schema first, retaining definition order
68 final List<String> sorted = new ArrayList<>(strings.size());
69 for (final String bit : validBits) {
70 if (strings.contains(bit)) {
75 // Check sizes, if the normalized set does not match non-normalized size, non-normalized strings contain
77 if (sorted.size() != strings.size()) {
78 for (final String bit : strings) {
79 Preconditions.checkArgument(validBits.contains(bit),
80 "Invalid value '%s' for bits type. Allowed values are: %s", bit, validBits);
84 // In case all valid bits have been specified, retain the set we have created for this codec
85 return sorted.size() == validBits.size() ? validBits : ImmutableSet.copyOf(sorted);