UriConverter.java

/**
 *
 */
package com.thinkbiganalytics.jpa;

/*-
 * #%L
 * thinkbig-commons-jpa
 * %%
 * Copyright (C) 2017 ThinkBig Analytics
 * %%
 * 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%
 */

import java.net.URI;

import javax.persistence.AttributeConverter;

/**
 * Converts URIs to/from strings.
 */
public class UriConverter implements AttributeConverter<URI, String> {

    /* (non-Javadoc)
     * @see javax.persistence.AttributeConverter#convertToDatabaseColumn(java.lang.Object)
     */
    @Override
    public String convertToDatabaseColumn(URI attribute) {
        if (attribute != null) {
            return attribute.toASCIIString();
        } else {
            return null;
        }
    }

    /* (non-Javadoc)
     * @see javax.persistence.AttributeConverter#convertToEntityAttribute(java.lang.Object)
     */
    @Override
    public URI convertToEntityAttribute(String dbData) {
        if (dbData != null) {
            return URI.create(dbData);
        } else {
            return null;
        }
    }

}