com.evolveum.midpoint.repo.sql.util.ContainerIdGenerator.java Source code

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Here is the source code for com.evolveum.midpoint.repo.sql.util.ContainerIdGenerator.java

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/*
 * Copyright (c) 2010-2013 Evolveum
 *
 * 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 com.evolveum.midpoint.repo.sql.util;

import com.evolveum.midpoint.repo.sql.data.common.container.Container;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.id.IdentifierGenerator;

import java.io.Serializable;

/**
 * @author lazyman
 */
public class ContainerIdGenerator implements IdentifierGenerator {

    private static final Trace LOGGER = TraceManager.getTrace(ContainerIdGenerator.class);

    @Override
    public Serializable generate(SessionImplementor session, Object object) throws HibernateException {
        if (!(object instanceof Container)) {
            throw new HibernateException("Couldn't create id for '" + object.getClass().getSimpleName()
                    + "' not instance of RContainer.");
        }

        return generate((Container) object);
    }

    private Short generate(Container container) {
        if (container.getId() != null && container.getId() != 0) {
            LOGGER.trace("Created id='{}' for '{}'.", new Object[] { container.getId(), toString(container) });
            return container.getId();
        }

        throw new RuntimeException("Unknown id, should not happen.");
    }

    private String toString(Container object) {
        StringBuilder builder = new StringBuilder();
        builder.append(object.getClass().getSimpleName());
        builder.append("[");
        builder.append(object.getOwnerOid());
        builder.append(",");
        builder.append(object.getId());
        builder.append("]");

        return builder.toString();
    }
}