org.graylog2.jackson.MongoJodaDateTimeDeserializer Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.jackson;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import java.io.IOException;
import java.util.Date;
public final class MongoJodaDateTimeDeserializer extends StdScalarDeserializer {
private static final DateTimeFormatter FORMATTER = ISODateTimeFormat.dateTime();
public MongoJodaDateTimeDeserializer() {
super(DateTime.class);
}
@Override
public DateTime deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
switch (jsonParser.currentToken()) {
case VALUE_EMBEDDED_OBJECT:
final Object embeddedObject = jsonParser.getEmbeddedObject();
if (embeddedObject instanceof Date) {
final Date date = (Date) embeddedObject;
return new DateTime(date, DateTimeZone.UTC);
} else {
throw new IllegalStateException("Unsupported token: " + jsonParser.currentToken());
}
case VALUE_STRING:
final String text = jsonParser.getText();
return DateTime.parse(text, FORMATTER).withZone(DateTimeZone.UTC);
default:
throw new IllegalStateException("Unsupported token: " + jsonParser.currentToken());
}
}
}