/* ===================================================================
 * RecipeIndexDeleteInterceptor.java
 * 
 * Created Jan 24, 2005 10:46:00 AM
 * 
 * Copyright (c) 2005 Matt Magoffin (spamsqr@msqr.us)
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License as 
 * published by the Free Software Foundation; either version 2 of 
 * the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
 * 02111-1307 USA
 * ===================================================================
 * $Id: RecipeIndexDeleteInterceptor.java 39 2009-05-06 03:30:47Z msqr $
 * ===================================================================
 */
 
package magoffin.matt.ieat.aop;

import java.lang.reflect.Method;

import org.springframework.aop.AfterReturningAdvice;

/**
 * Interceptor to support automatic removal from index of Recipe 
 * domain objects.
 * 
 * <p>This method expects an <code>Integer</code> value to exist on the 
 * <code>args</code> parameter passed to the 
 * {@link #afterReturning(Object, Method, Object[], Object)} method. It will
 * assume the first Integer object found is the <code>recipeId</code> of the 
 * recipe that should be removed from the recipe index via 
 * {@link magoffin.matt.ieat.biz.RecipeSearchIndexBiz#removeRecipeFromIndex(Long)}.</p>
 * 
 * @see magoffin.matt.ieat.aop.AbstractIndexInterceptor
 * @author Matt Magoffin (spamsqr@msqr.us)
 * @version $Revision: 39 $ $Date: 2009-05-06 15:30:47 +1200 (Wed, 06 May 2009) $
 */
public class RecipeIndexDeleteInterceptor extends AbstractIndexInterceptor
implements AfterReturningAdvice {

	/* (non-Javadoc)
	 * @see org.springframework.aop.AfterReturningAdvice#afterReturning(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], java.lang.Object)
	 */
	public void afterReturning(Object returnValue, Method method, Object[] args, Object target) throws Throwable {
		// assume one parameter is the Integer ID of the Recipe to delete
		Long recipeId = null;
		for ( int i = 0; i < args.length && recipeId == null; i++ ) {
			if ( args[i] instanceof Long ) {
				recipeId = (Long)args[i];
			}
		}
		
		if ( recipeId == null ) {
			throw new RuntimeException("Recipe ID not available in method arguments");
		}
		
		getRecipeSearchIndexBiz().removeRecipeFromIndex(recipeId);
	}

}
