org.springframework.orm.hibernate4.SessionFactoryUtils.java Source code

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/*
 * Copyright 2002-2014 the original author or authors.
 *
 * 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.springframework.orm.hibernate4;

import java.lang.reflect.Method;
import javax.sql.DataSource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.JDBCException;
import org.hibernate.NonUniqueObjectException;
import org.hibernate.NonUniqueResultException;
import org.hibernate.ObjectDeletedException;
import org.hibernate.PersistentObjectException;
import org.hibernate.PessimisticLockException;
import org.hibernate.PropertyValueException;
import org.hibernate.QueryException;
import org.hibernate.QueryTimeoutException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.StaleObjectStateException;
import org.hibernate.StaleStateException;
import org.hibernate.TransientObjectException;
import org.hibernate.UnresolvableObjectException;
import org.hibernate.WrongClassException;
import org.hibernate.dialect.lock.OptimisticEntityLockException;
import org.hibernate.dialect.lock.PessimisticEntityLockException;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.exception.ConstraintViolationException;
import org.hibernate.exception.DataException;
import org.hibernate.exception.JDBCConnectionException;
import org.hibernate.exception.LockAcquisitionException;
import org.hibernate.exception.SQLGrammarException;
import org.hibernate.service.spi.Wrapped;

import org.springframework.dao.CannotAcquireLockException;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.dao.IncorrectResultSizeDataAccessException;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.dao.InvalidDataAccessResourceUsageException;
import org.springframework.dao.PessimisticLockingFailureException;
import org.springframework.jdbc.datasource.DataSourceUtils;
import org.springframework.util.ClassUtils;
import org.springframework.util.ReflectionUtils;

/**
 * Helper class featuring methods for Hibernate Session handling.
 * Also provides support for exception translation.
 *
 * <p>Used internally by {@link HibernateTransactionManager}.
 * Can also be used directly in application code.
 *
 * @author Juergen Hoeller
 * @since 3.1
 * @see HibernateExceptionTranslator
 * @see HibernateTransactionManager
 */
public abstract class SessionFactoryUtils {

    /**
     * Order value for TransactionSynchronization objects that clean up Hibernate Sessions.
     * Returns {@code DataSourceUtils.CONNECTION_SYNCHRONIZATION_ORDER - 100}
     * to execute Session cleanup before JDBC Connection cleanup, if any.
     * @see org.springframework.jdbc.datasource.DataSourceUtils#CONNECTION_SYNCHRONIZATION_ORDER
     */
    public static final int SESSION_SYNCHRONIZATION_ORDER = DataSourceUtils.CONNECTION_SYNCHRONIZATION_ORDER - 100;

    static final Log logger = LogFactory.getLog(SessionFactoryUtils.class);

    /**
     * Bridging between the different ConnectionProvider package location in 4.0-4.2 vs 4.3.
     */
    private static final Method getConnectionProviderMethod = ClassUtils
            .getMethodIfAvailable(SessionFactoryImplementor.class, "getConnectionProvider");

    /**
     * Determine the DataSource of the given SessionFactory.
     * @param sessionFactory the SessionFactory to check
     * @return the DataSource, or {@code null} if none found
     * @see org.hibernate.engine.spi.SessionFactoryImplementor#getConnectionProvider
     */
    public static DataSource getDataSource(SessionFactory sessionFactory) {
        if (getConnectionProviderMethod != null && sessionFactory instanceof SessionFactoryImplementor) {
            Wrapped cp = (Wrapped) ReflectionUtils.invokeMethod(getConnectionProviderMethod, sessionFactory);
            if (cp != null) {
                return cp.unwrap(DataSource.class);
            }
        }
        return null;
    }

    /**
     * Perform actual closing of the Hibernate Session,
     * catching and logging any cleanup exceptions thrown.
     * @param session the Hibernate Session to close (may be {@code null})
     * @see org.hibernate.Session#close()
     */
    public static void closeSession(Session session) {
        if (session != null) {
            try {
                session.close();
            } catch (HibernateException ex) {
                logger.debug("Could not close Hibernate Session", ex);
            } catch (Throwable ex) {
                logger.debug("Unexpected exception on closing Hibernate Session", ex);
            }
        }
    }

    /**
     * Convert the given HibernateException to an appropriate exception
     * from the {@code org.springframework.dao} hierarchy.
     * @param ex HibernateException that occurred
     * @return the corresponding DataAccessException instance
     * @see HibernateExceptionTranslator#convertHibernateAccessException
     * @see HibernateTransactionManager#convertHibernateAccessException
     */
    public static DataAccessException convertHibernateAccessException(HibernateException ex) {
        if (ex instanceof JDBCConnectionException) {
            return new DataAccessResourceFailureException(ex.getMessage(), ex);
        }
        if (ex instanceof SQLGrammarException) {
            SQLGrammarException jdbcEx = (SQLGrammarException) ex;
            return new InvalidDataAccessResourceUsageException(ex.getMessage() + "; SQL [" + jdbcEx.getSQL() + "]",
                    ex);
        }
        if (ex instanceof QueryTimeoutException) {
            QueryTimeoutException jdbcEx = (QueryTimeoutException) ex;
            return new org.springframework.dao.QueryTimeoutException(
                    ex.getMessage() + "; SQL [" + jdbcEx.getSQL() + "]", ex);
        }
        if (ex instanceof LockAcquisitionException) {
            LockAcquisitionException jdbcEx = (LockAcquisitionException) ex;
            return new CannotAcquireLockException(ex.getMessage() + "; SQL [" + jdbcEx.getSQL() + "]", ex);
        }
        if (ex instanceof PessimisticLockException) {
            PessimisticLockException jdbcEx = (PessimisticLockException) ex;
            return new PessimisticLockingFailureException(ex.getMessage() + "; SQL [" + jdbcEx.getSQL() + "]", ex);
        }
        if (ex instanceof ConstraintViolationException) {
            ConstraintViolationException jdbcEx = (ConstraintViolationException) ex;
            return new DataIntegrityViolationException(ex.getMessage() + "; SQL [" + jdbcEx.getSQL()
                    + "]; constraint [" + jdbcEx.getConstraintName() + "]", ex);
        }
        if (ex instanceof DataException) {
            DataException jdbcEx = (DataException) ex;
            return new DataIntegrityViolationException(ex.getMessage() + "; SQL [" + jdbcEx.getSQL() + "]", ex);
        }
        if (ex instanceof JDBCException) {
            return new HibernateJdbcException((JDBCException) ex);
        }
        // end of JDBCException (subclass) handling

        if (ex instanceof QueryException) {
            return new HibernateQueryException((QueryException) ex);
        }
        if (ex instanceof NonUniqueResultException) {
            return new IncorrectResultSizeDataAccessException(ex.getMessage(), 1, ex);
        }
        if (ex instanceof NonUniqueObjectException) {
            return new DuplicateKeyException(ex.getMessage(), ex);
        }
        if (ex instanceof PropertyValueException) {
            return new DataIntegrityViolationException(ex.getMessage(), ex);
        }
        if (ex instanceof PersistentObjectException) {
            return new InvalidDataAccessApiUsageException(ex.getMessage(), ex);
        }
        if (ex instanceof TransientObjectException) {
            return new InvalidDataAccessApiUsageException(ex.getMessage(), ex);
        }
        if (ex instanceof ObjectDeletedException) {
            return new InvalidDataAccessApiUsageException(ex.getMessage(), ex);
        }
        if (ex instanceof UnresolvableObjectException) {
            return new HibernateObjectRetrievalFailureException((UnresolvableObjectException) ex);
        }
        if (ex instanceof WrongClassException) {
            return new HibernateObjectRetrievalFailureException((WrongClassException) ex);
        }
        if (ex instanceof StaleObjectStateException) {
            return new HibernateOptimisticLockingFailureException((StaleObjectStateException) ex);
        }
        if (ex instanceof StaleStateException) {
            return new HibernateOptimisticLockingFailureException((StaleStateException) ex);
        }
        if (ex instanceof OptimisticEntityLockException) {
            return new HibernateOptimisticLockingFailureException((OptimisticEntityLockException) ex);
        }
        if (ex instanceof PessimisticEntityLockException) {
            if (ex.getCause() instanceof LockAcquisitionException) {
                return new CannotAcquireLockException(ex.getMessage(), ex.getCause());
            }
            return new PessimisticLockingFailureException(ex.getMessage(), ex);
        }

        // fallback
        return new HibernateSystemException(ex);
    }

}