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 static com.google.common.base.Verify.verifyNotNull;
12 import com.google.common.annotations.Beta;
13 import com.google.common.base.CharMatcher;
14 import com.google.common.collect.RangeSet;
15 import java.util.regex.Pattern;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.yangtools.yang.common.ErrorType;
18 import org.opendaylight.yangtools.yang.common.Uint16;
19 import org.opendaylight.yangtools.yang.common.Uint32;
20 import org.opendaylight.yangtools.yang.common.Uint64;
21 import org.opendaylight.yangtools.yang.common.Uint8;
22 import org.opendaylight.yangtools.yang.data.api.codec.YangInvalidValueException;
23 import org.opendaylight.yangtools.yang.model.api.type.Int16TypeDefinition;
24 import org.opendaylight.yangtools.yang.model.api.type.Int32TypeDefinition;
25 import org.opendaylight.yangtools.yang.model.api.type.Int64TypeDefinition;
26 import org.opendaylight.yangtools.yang.model.api.type.Int8TypeDefinition;
27 import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
28 import org.opendaylight.yangtools.yang.model.api.type.RangeRestrictedTypeDefinition;
29 import org.opendaylight.yangtools.yang.model.api.type.Uint16TypeDefinition;
30 import org.opendaylight.yangtools.yang.model.api.type.Uint32TypeDefinition;
31 import org.opendaylight.yangtools.yang.model.api.type.Uint64TypeDefinition;
32 import org.opendaylight.yangtools.yang.model.api.type.Uint8TypeDefinition;
35 * Do not use this class outside of yangtools, its presence does not fall into the API stability contract.
38 public abstract class AbstractIntegerStringCodec<N extends Number & Comparable<N>,
39 T extends RangeRestrictedTypeDefinition<T, N>> extends TypeDefinitionAwareCodec<N, T> {
41 private static final Pattern INT_PATTERN = Pattern.compile("[+-]?[1-9][0-9]*$");
42 private static final Pattern HEX_PATTERN = Pattern.compile("[+-]?0[xX][0-9a-fA-F]+");
43 private static final Pattern OCT_PATTERN = Pattern.compile("[+-]?0[1-7][0-7]*$");
45 // For up to two characters, this is very fast
46 private static final CharMatcher X_MATCHER = CharMatcher.anyOf("xX");
48 private final RangeConstraint<N> rangeConstraint;
50 AbstractIntegerStringCodec(final Class<N> outputClass, final T typeDefinition) {
51 super(outputClass, typeDefinition);
52 rangeConstraint = typeDefinition.getRangeConstraint().orElse(null);
55 public static @NonNull AbstractIntegerStringCodec<Byte, Int8TypeDefinition> from(final Int8TypeDefinition type) {
56 return new Int8StringCodec(type);
59 public static @NonNull AbstractIntegerStringCodec<Short, Int16TypeDefinition> from(final Int16TypeDefinition type) {
60 return new Int16StringCodec(type);
63 public static @NonNull AbstractIntegerStringCodec<Integer, Int32TypeDefinition> from(
64 final Int32TypeDefinition type) {
65 return new Int32StringCodec(type);
68 public static @NonNull AbstractIntegerStringCodec<Long, Int64TypeDefinition> from(final Int64TypeDefinition type) {
69 return new Int64StringCodec(type);
72 public static @NonNull AbstractIntegerStringCodec<Uint8, Uint8TypeDefinition> from(final Uint8TypeDefinition type) {
73 return new Uint8StringCodec(type);
76 public static @NonNull AbstractIntegerStringCodec<Uint16, Uint16TypeDefinition> from(
77 final Uint16TypeDefinition type) {
78 return new Uint16StringCodec(type);
81 public static @NonNull AbstractIntegerStringCodec<Uint32, Uint32TypeDefinition> from(
82 final Uint32TypeDefinition type) {
83 return new Uint32StringCodec(type);
86 public static @NonNull AbstractIntegerStringCodec<Uint64, Uint64TypeDefinition> from(
87 final Uint64TypeDefinition type) {
88 return new Uint64StringCodec(type);
92 protected final N deserializeImpl(final String product) {
93 final int base = provideBase(product);
94 final String stringRepresentation = base != 16 ? product : X_MATCHER.removeFrom(product);
95 final N deserialized = verifyNotNull(deserialize(stringRepresentation, base));
96 if (rangeConstraint != null) {
97 final RangeSet<N> ranges = rangeConstraint.getAllowedRanges();
98 if (!ranges.contains(deserialized)) {
99 throw new YangInvalidValueException(ErrorType.APPLICATION, rangeConstraint,
100 "Value '" + deserialized + "' is not in required ranges " + ranges);
107 protected final String serializeImpl(final N input) {
108 return input.toString();
112 * Deserializes value from supplied string representation is supplied radix. See
113 * {@link Integer#parseInt(String, int)} for in-depth description about string and radix relationship.
115 * @param stringRepresentation String representation
116 * @param radix numeric base.
117 * @return Deserialized value.
119 protected abstract @NonNull N deserialize(@NonNull String stringRepresentation, int radix);
121 private static int provideBase(final String integer) {
122 if (integer.length() == 1 && integer.charAt(0) == '0' || INT_PATTERN.matcher(integer).matches()) {
124 } else if (HEX_PATTERN.matcher(integer).matches()) {
126 } else if (OCT_PATTERN.matcher(integer).matches()) {
129 throw new NumberFormatException("Incorrect lexical representation of integer value: " + integer + ".\n"
130 + "An integer value can be defined as:\n"
131 + " - a decimal number,\n"
132 + " - a hexadecimal number (prefix 0x)," + "%n - an octal number (prefix 0).\n"
133 + "Signed values are allowed. Spaces between digits are NOT allowed.");