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Framework for high-performance JDBC batch operations.
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package org.hisp.quick;

/*
 * Copyright (c) 2004-2016, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;

/**
 * AspectJ interceptor for initialising and destroying a statement manager.
 *
 * @author Lars Helge Overland
 */
public class StatementInterceptor
{
    private static final Log log = LogFactory.getLog( StatementInterceptor.class );

    // -------------------------------------------------------------------------
    // Dependencies
    // -------------------------------------------------------------------------

    private List statementManagers = new ArrayList<>();

    public void setStatementManagers( List statementManagers )
    {
        this.statementManagers = statementManagers;
    }

    public Object intercept( ProceedingJoinPoint joinPoint )
        throws Throwable
    {
        Object object = null;

        for ( StatementManager manager : statementManagers )
        {
            manager.initialise();

            log.debug( "Initialised statement manager" );
        }

        try
        {
            object = joinPoint.proceed();
        }
        finally
        {
            for ( StatementManager manager : statementManagers )
            {
                try
                {
                    manager.destroy();

                    log.debug( "Destroyed statement manager" );
                }
                catch ( Exception ex )
                {
                    log.warn( "Failed to destroy statement manager", ex );
                }
            }
        }

        return object;
    }
}