de.quantummaid.mapmaid.jackson.AlwaysStringValueJacksonDeserializer Maven / Gradle / Ivy
/*
* Copyright (c) 2020 Richard Hauswald - https://quantummaid.de/.
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 de.quantummaid.mapmaid.jackson;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonTokenId;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer;
import java.io.IOException;
import java.util.Set;
final class AlwaysStringValueJacksonDeserializer extends UntypedObjectDeserializer {
private static final Set STRING_TOKENS = Set.of(
JsonTokenId.ID_NUMBER_INT,
JsonTokenId.ID_NUMBER_FLOAT,
JsonTokenId.ID_TRUE,
JsonTokenId.ID_FALSE
);
AlwaysStringValueJacksonDeserializer() {
super(null, null);
}
@Override
public Object deserialize(final JsonParser p, final DeserializationContext ctxt) throws IOException {
final int currentTokenId = p.getCurrentTokenId();
if (STRING_TOKENS.contains(currentTokenId)) {
if (this._stringDeserializer != null) {
return this._stringDeserializer.deserialize(p, ctxt);
}
return p.getText();
} else {
return super.deserialize(p, ctxt);
}
}
}