JWTStringConverter.java

/*******************************************************************************
 * Copyright 2017 The MIT Internet Trust Consortium
 *
 * 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.
 *******************************************************************************/

package org.mitre.oauth2.model.convert;

import java.text.ParseException;

import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.nimbusds.jwt.JWT;
import com.nimbusds.jwt.JWTParser;

/**
 * @author jricher
 *
 */
@Converter
public class JWTStringConverter implements AttributeConverter<JWT, String> {

    public static Logger logger = LoggerFactory.getLogger(JWTStringConverter.class);

    @Override
    public String convertToDatabaseColumn(JWT attribute) {
        if (attribute != null) {
            return attribute.serialize();
        } else {
            return null;
        }
    }

    /* (non-Javadoc)
     * @see javax.persistence.AttributeConverter#convertToEntityAttribute(java.lang.Object)
     */
    @Override
    public JWT convertToEntityAttribute(String dbData) {
        if (dbData != null) {
            try {
                JWT jwt = JWTParser.parse(dbData);
                return jwt;
            } catch (ParseException e) {
                logger.error("Unable to parse JWT", e);
                return null;
            }
        } else {
            return null;
        }
    }

}