org.dominokit.jackson.deser.CharacterJsonDeserializer Maven / Gradle / Ivy
/*
* 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 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;
/**
* Default {@link org.dominokit.jackson.JsonDeserializer} implementation for {@link
* java.lang.Character}.
*/
public class CharacterJsonDeserializer extends JsonDeserializer {
private static final CharacterJsonDeserializer INSTANCE = new CharacterJsonDeserializer();
/**
* getInstance
*
* @return an instance of {@link org.dominokit.jackson.deser.CharacterJsonDeserializer}
*/
public static CharacterJsonDeserializer getInstance() {
return INSTANCE;
}
private CharacterJsonDeserializer() {}
/** {@inheritDoc} */
@Override
public Character doDeserialize(
JsonReader reader, JsonDeserializationContext ctx, JsonDeserializerParameters params) {
if (JsonToken.NUMBER.equals(reader.peek())) {
return (char) reader.nextInt();
} else {
String value = reader.nextString();
if (value.isEmpty()) {
return null;
}
return value.charAt(0);
}
}
}