hu.icellmobilsoft.coffee.tool.gson.DateConverter Maven / Gradle / Ivy
/*-
* #%L
* Coffee
* %%
* Copyright (C) 2020 i-Cell Mobilsoft Zrt.
* %%
* 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.
* #L%
*/
package hu.icellmobilsoft.coffee.tool.gson;
import java.lang.reflect.Type;
import java.text.MessageFormat;
import java.util.Date;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import hu.icellmobilsoft.coffee.se.logging.Logger;
/**
* Json <-> Date converter.
*
* @author imre.scheffer
* @since 1.0.0
*/
public class DateConverter implements JsonSerializer, JsonDeserializer {
private static Logger LOGGER = Logger.getLogger(DateConverter.class);
/**
* Default constructor, constructs a new object.
*/
public DateConverter() {
super();
}
/** {@inheritDoc} */
@Override
public JsonElement serialize(Date date, Type type, JsonSerializationContext jsonSerializationContext) {
return new JsonPrimitive(date.getTime());
}
/** {@inheritDoc} */
@Override
public Date deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jsonDeserializationContext) {
try {
return new Date(jsonElement.getAsLong());
} catch (Exception e) {
String msg = MessageFormat.format("Could not deserialize value:[{0}], returning null!", jsonElement.getAsLong());
LOGGER.error(msg, e);
throw new JsonParseException(msg, e);
}
}
}