org.osiam.storage.helper.DataBaseSchemeVersionValidator.java Source code

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Here is the source code for org.osiam.storage.helper.DataBaseSchemeVersionValidator.java

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/*
 * Copyright (C) 2013 tarent AG
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package org.osiam.storage.helper;

import org.osiam.storage.entities.DBVersion;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.PostConstruct;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Repository
@Transactional
public class DataBaseSchemeVersionValidator {

    @PersistenceContext
    private EntityManager em;

    @PostConstruct
    public void checkVersion() throws InterruptedException {
        DBVersion version = em.find(DBVersion.class, DBVersion.DB_VERSION);
        if (version == null || !Double.valueOf(version.getVersion()).equals(DBVersion.DB_VERSION)) {
            throw new IllegalStateException("Database Scheme " + DBVersion.DB_VERSION + " not found. "
                    + "The reason may be that the wrong database scheme is enrolled, please contact a System-Administrator");
        }
    }
}