org.dominokit.jackson.deser.BaseNumberJsonDeserializer Maven / Gradle / Ivy
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/*
* Copyright 2013 Nicolas Morel
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dominokit.jackson.deser;
import java.math.BigDecimal;
import java.math.BigInteger;
import org.dominokit.jackson.JsonDeserializationContext;
import org.dominokit.jackson.JsonDeserializer;
import org.dominokit.jackson.JsonDeserializerParameters;
import org.dominokit.jackson.stream.JsonReader;
import org.dominokit.jackson.stream.JsonToken;
/**
* Base implementation of {@link org.dominokit.jackson.JsonDeserializer} for {@link
* java.lang.Number}.
*/
public abstract class BaseNumberJsonDeserializer extends JsonDeserializer {
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link BigDecimal} */
public static final class BigDecimalJsonDeserializer
extends BaseNumberJsonDeserializer {
private static final BigDecimalJsonDeserializer INSTANCE = new BigDecimalJsonDeserializer();
/** @return an instance of {@link BigDecimalJsonDeserializer} */
public static BigDecimalJsonDeserializer getInstance() {
return INSTANCE;
}
private BigDecimalJsonDeserializer() {}
@Override
protected BigDecimal doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return new BigDecimal(reader.nextString());
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link BigInteger} */
public static final class BigIntegerJsonDeserializer
extends BaseNumberJsonDeserializer {
private static final BigIntegerJsonDeserializer INSTANCE = new BigIntegerJsonDeserializer();
/** @return an instance of {@link BigIntegerJsonDeserializer} */
public static BigIntegerJsonDeserializer getInstance() {
return INSTANCE;
}
private BigIntegerJsonDeserializer() {}
@Override
protected BigInteger doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return new BigInteger(reader.nextString());
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Byte} */
public static final class ByteJsonDeserializer extends BaseNumberJsonDeserializer {
private static final ByteJsonDeserializer INSTANCE = new ByteJsonDeserializer();
/** @return an instance of {@link ByteJsonDeserializer} */
public static ByteJsonDeserializer getInstance() {
return INSTANCE;
}
private ByteJsonDeserializer() {}
@Override
protected Byte doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return (byte) reader.nextInt();
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Double} */
public static final class DoubleJsonDeserializer extends BaseNumberJsonDeserializer {
private static final DoubleJsonDeserializer INSTANCE = new DoubleJsonDeserializer();
/** @return an instance of {@link DoubleJsonDeserializer} */
public static DoubleJsonDeserializer getInstance() {
return INSTANCE;
}
private DoubleJsonDeserializer() {}
@Override
protected Double doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return reader.nextDouble();
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Float} */
public static final class FloatJsonDeserializer extends BaseNumberJsonDeserializer {
private static final FloatJsonDeserializer INSTANCE = new FloatJsonDeserializer();
/** @return an instance of {@link FloatJsonDeserializer} */
public static FloatJsonDeserializer getInstance() {
return INSTANCE;
}
private FloatJsonDeserializer() {}
@Override
protected Float doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return Float.parseFloat(reader.nextString());
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Integer} */
public static final class IntegerJsonDeserializer extends BaseNumberJsonDeserializer {
private static final IntegerJsonDeserializer INSTANCE = new IntegerJsonDeserializer();
/** @return an instance of {@link IntegerJsonDeserializer} */
public static IntegerJsonDeserializer getInstance() {
return INSTANCE;
}
private IntegerJsonDeserializer() {}
@Override
protected Integer doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
if (JsonToken.NUMBER.equals(reader.peek())) {
return reader.nextInt();
} else {
return Integer.parseInt(reader.nextString());
}
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Long} */
public static final class LongJsonDeserializer extends BaseNumberJsonDeserializer {
private static final LongJsonDeserializer INSTANCE = new LongJsonDeserializer();
/** @return an instance of {@link LongJsonDeserializer} */
public static LongJsonDeserializer getInstance() {
return INSTANCE;
}
private LongJsonDeserializer() {}
@Override
protected Long doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return reader.nextLong();
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Short} */
public static final class ShortJsonDeserializer extends BaseNumberJsonDeserializer {
private static final ShortJsonDeserializer INSTANCE = new ShortJsonDeserializer();
/** @return an instance of {@link ShortJsonDeserializer} */
public static ShortJsonDeserializer getInstance() {
return INSTANCE;
}
private ShortJsonDeserializer() {}
@Override
protected Short doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
if (JsonToken.NUMBER.equals(reader.peek())) {
return (short) reader.nextInt();
} else {
return Short.parseShort(reader.nextString());
}
}
}
/** Default implementation of {@link BaseNumberJsonDeserializer} for {@link Number} */
public static final class NumberJsonDeserializer extends BaseNumberJsonDeserializer {
private static final NumberJsonDeserializer INSTANCE = new NumberJsonDeserializer();
/** @return an instance of {@link NumberJsonDeserializer} */
public static NumberJsonDeserializer getInstance() {
return INSTANCE;
}
private NumberJsonDeserializer() {}
@Override
public Number doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
return reader.nextNumber();
}
}
}