
com.github.joekerouac.common.tools.codec.json.databind.AbstractTimeDeserializer Maven / Gradle / Ivy
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* 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 com.github.joekerouac.common.tools.codec.json.databind;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.deser.ContextualDeserializer;
import com.fasterxml.jackson.databind.deser.std.StringDeserializer;
import com.github.joekerouac.common.tools.string.StringUtils;
import java.io.IOException;
import java.time.format.DateTimeFormatter;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAccessor;
/**
* @author JoeKerouac
* @date 2024-07-13 11:27:36
* @since 2.1.5
*/
public abstract class AbstractTimeDeserializer extends JsonDeserializer
implements SerializeRegister, ContextualDeserializer {
protected final DateTimeFormatSupplier formatSupplier;
protected final DateTimeFormatter formatter;
protected final String format;
public AbstractTimeDeserializer(String format) {
this(format, DateTimeFormatSupplier.DEFAULT);
}
public AbstractTimeDeserializer(String format, DateTimeFormatSupplier formatSupplier) {
this.formatSupplier = formatSupplier;
this.format = format;
this.formatter = DateTimeFormatter.ofPattern(format);
}
protected abstract JsonDeserializer> createInstance(String format, DateTimeFormatSupplier formatSupplier);
protected abstract T from(TemporalAccessor temporal);
@Override
public T deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
throws IOException, JsonProcessingException {
String datetime = StringDeserializer.instance.deserialize(jsonParser, deserializationContext);
if (StringUtils.isBlank(datetime)) {
return null;
}
TemporalAccessor temporal = formatter.parse(datetime);
return from(temporal);
}
@Override
public JsonDeserializer> createContextual(DeserializationContext deserializationContext,
BeanProperty beanProperty) throws JsonMappingException {
DateTimeFormatSupplier.Format format = formatSupplier.getFormat(beanProperty);
if (format == null) {
return this;
}
return createInstance(StringUtils.getOrDefault(format.getDeserializer(),
StringUtils.getOrDefault(format.getValue(), this.format)), formatSupplier);
}
}
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