net.aholbrook.paseto.encoding.json.jackson.OffsetDateTimeDeserializer Maven / Gradle / Ivy

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JSON encoding backed by Jackson.

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package net.aholbrook.paseto.encoding.json.jackson;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import net.aholbrook.paseto.service.Token;

import java.io.IOException;
import java.time.OffsetDateTime;

public class OffsetDateTimeDeserializer extends JsonDeserializer {

	@Override
	public OffsetDateTime deserialize(JsonParser p, DeserializationContext ctxt)
			throws IOException, JsonProcessingException {
		JsonToken token = p.getCurrentToken();

		if (token.equals(JsonToken.VALUE_STRING)) {
			return Token.DATETIME_FORMATTER.parse(p.getValueAsString(), OffsetDateTime::from);
		} else {
			return getNullValue(ctxt);
		}
	}

}